Mercurial > hg4j

annotate src/org/tmatesoft/hg/repo/Revlog.java @ 404:31a719b9f95e smartgit3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Provide more detailed information on erroneous file operation
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 05 Mar 2012 15:15:49 +0100
parents 728708de3597
children f52ca9530774 d0e5dc3cae6e
rev   line source
22
603806cd2dc6 Status of local working dir against non-tip base revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 21
diff changeset
1 /*
388
b015f3918120 Work on FIXME: correct HgDataFile#workingCopy with tests; BasicSessionContext with property override; platform-specific options to internals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 385
diff changeset
2 * Copyright (c) 2010-2012 TMate Software Ltd
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
3 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
4 * This program is free software; you can redistribute it and/or modify
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
5 * it under the terms of the GNU General Public License as published by
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
6 * the Free Software Foundation; version 2 of the License.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
7 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
8 * This program is distributed in the hope that it will be useful,
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
12 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
13 * For information on how to redistribute this software under
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
14 * the terms of a license other than GNU General Public License
102
a3a2e5deb320 Updated contact address to support@hg4j.com
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 88
diff changeset
15 * contact TMate Software at support@hg4j.com
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
17 package org.tmatesoft.hg.repo;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
19 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
20 import static org.tmatesoft.hg.repo.HgRepository.TIP;
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
21
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
22 import java.io.IOException;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
23 import java.nio.ByteBuffer;
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
24 import java.util.ArrayList;
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
25 import java.util.Arrays;
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
26 import java.util.Collection;
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
27 import java.util.HashSet;
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
28 import java.util.LinkedList;
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
29 import java.util.List;
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
30
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
31 import org.tmatesoft.hg.core.HgBadStateException;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
32 import org.tmatesoft.hg.core.HgException;
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
33 import org.tmatesoft.hg.core.HgInvalidControlFileException;
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
34 import org.tmatesoft.hg.core.HgInvalidRevisionException;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
35 import org.tmatesoft.hg.core.Nodeid;
307
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
36 import org.tmatesoft.hg.internal.ArrayHelper;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
37 import org.tmatesoft.hg.internal.DataAccess;
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
38 import org.tmatesoft.hg.internal.Experimental;
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
39 import org.tmatesoft.hg.internal.Preview;
77
c677e1593919 Moved RevlogStream implementation into .internal
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
40 import org.tmatesoft.hg.internal.RevlogStream;
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
41 import org.tmatesoft.hg.util.Adaptable;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
42 import org.tmatesoft.hg.util.ByteChannel;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
43 import org.tmatesoft.hg.util.CancelSupport;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
44 import org.tmatesoft.hg.util.CancelledException;
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
45 import org.tmatesoft.hg.util.LogFacility;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
46 import org.tmatesoft.hg.util.ProgressSupport;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
47
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
48
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 /**
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
50 * Base class for all Mercurial entities that are serialized in a so called revlog format (changelog, manifest, data files).
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
51 *
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
52 * Implementation note:
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
53 * Hides actual actual revlog stream implementation and its access methods (i.e. RevlogStream.Inspector), iow shall not expose anything internal
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
54 * in public methods.
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
55 *
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
56 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
57 * @author TMate Software Ltd.
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
59 abstract class Revlog {
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
61 private final HgRepository repo;
21
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
62 protected final RevlogStream content;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
64 protected Revlog(HgRepository hgRepo, RevlogStream contentStream) {
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 if (hgRepo == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
66 throw new IllegalArgumentException();
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
67 }
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
68 if (contentStream == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
69 throw new IllegalArgumentException();
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
70 }
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
71 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
72 content = contentStream;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
73 }
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
74
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
75 // invalid Revlog
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
76 protected Revlog(HgRepository hgRepo) {
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
77 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
78 content = null;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 }
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 public final HgRepository getRepo() {
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
82 return repo;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83 }
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84
135
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
85 public final int getRevisionCount() {
21
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
86 return content.revisionCount();
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
87 }
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
88
135
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
89 public final int getLastRevision() {
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
90 return content.revisionCount() - 1;
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
91 }
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
92
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
93 /**
388
b015f3918120 Work on FIXME: correct HgDataFile#workingCopy with tests; BasicSessionContext with property override; platform-specific options to internals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 385
diff changeset
94 * Map revision index to unique revision identifier (nodeid).
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
95 *
388
b015f3918120 Work on FIXME: correct HgDataFile#workingCopy with tests; BasicSessionContext with property override; platform-specific options to internals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 385
diff changeset
96 * @param revision index of the entry in this revlog, may be {@link HgRepository#TIP}
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
97 * @return revision nodeid of the entry
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
98 *
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
99 * @throws HgInvalidRevisionException if supplied argument doesn't represent revision index in this revlog
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
100 * @throws HgInvalidControlFileException if access to revlog index/data entry failed
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
101 */
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
102 public final Nodeid getRevision(int revision) throws HgInvalidRevisionException, HgInvalidControlFileException {
328
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
103 // XXX cache nodeids? Rather, if context.getCache(this).getRevisionMap(create == false) != null, use it
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
104 return Nodeid.fromBinary(content.nodeid(revision), 0);
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
105 }
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
106
328
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
107 /**
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
108 * FIXME need to be careful about (1) ordering of the revisions in the return list; (2) modifications (sorting) of the argument array
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
109 */
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
110 public final List<Nodeid> getRevisions(int... revisions) throws HgInvalidRevisionException, HgInvalidControlFileException {
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
111 ArrayList<Nodeid> rv = new ArrayList<Nodeid>(revisions.length);
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
112 Arrays.sort(revisions);
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
113 getRevisionsInternal(rv, revisions);
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
114 return rv;
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
115 }
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
116
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
117 /*package-local*/ void getRevisionsInternal(final List<Nodeid> retVal, int[] sortedRevs) throws HgInvalidRevisionException, HgInvalidControlFileException {
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
118 // once I have getRevisionMap and may find out whether it is avalable from cache,
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
119 // may use it, perhaps only for small number of revisions
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
120 content.iterate(sortedRevs, false, new RevlogStream.Inspector() {
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
121
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
122 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
123 retVal.add(Nodeid.fromBinary(nodeid, 0));
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
124 }
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
125 });
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
126 }
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
127
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
128 /**
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
129 * Get local index of the specified revision.
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
130 * If unsure, use {@link #isKnown(Nodeid)} to find out whether nodeid belongs to this revlog.
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
131 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
132 * For occasional queries, this method works with decent performance, despite its O(n/2) approach.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
133 * Alternatively, if you need to perform multiple queries (e.g. at least 15-20), {@link RevisionMap} may come handy.
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
134 *
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
135 * @param nid revision to look up
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
136 * @return revision local index in this revlog
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
137 * @throws HgInvalidRevisionException if supplied nodeid doesn't identify any revision from this revlog
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
138 * @throws HgInvalidControlFileException if access to revlog index/data entry failed
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
139 */
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
140 public final int getRevisionIndex(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
141 int revision = content.findRevisionIndex(nid);
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
142 if (revision == BAD_REVISION) {
393
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
143 // using toString() to identify revlog. HgDataFile.toString includes path, HgManifest and HgChangelog instances
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
144 // are fine with default (class name)
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
145 // Perhaps, more tailored description method would be suitable here
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
146 throw new HgInvalidRevisionException(String.format("Can't find revision %s in %s", nid.shortNotation(), this), nid, null);
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
147 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
148 return revision;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
149 }
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
150
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
151 /**
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
152 * @deprecated use {@link #getRevisionIndex(Nodeid)} instead
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
153 */
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
154 @Deprecated
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
155 public final int getLocalRevision(Nodeid nid) throws HgInvalidControlFileException, HgInvalidRevisionException {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
156 return getRevisionIndex(nid);
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
157 }
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
158
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
159
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
160 /**
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
161 * Note, {@link Nodeid#NULL} nodeid is not reported as known in any revlog.
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
162 *
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
163 * @param nodeid
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
164 * @return
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
165 * @throws HgInvalidControlFileException if access to revlog index/data entry failed
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
166 */
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
167 public final boolean isKnown(Nodeid nodeid) throws HgInvalidControlFileException {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
168 final int rn = content.findRevisionIndex(nodeid);
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 200
diff changeset
169 if (BAD_REVISION == rn) {
39
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
170 return false;
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
171 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
172 if (rn < 0 || rn >= content.revisionCount()) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
173 // Sanity check
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
174 throw new HgBadStateException(String.format("Revision index %d found for nodeid %s is not from the range [0..%d]", rn, nodeid.shortNotation(), content.revisionCount()-1));
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
175 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
176 return true;
39
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
177 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
178
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
179 /**
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
180 * Access to revision data as is (decompressed, but otherwise unprocessed, i.e. not parsed for e.g. changeset or manifest entries)
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
181 * @param nodeid
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
182 */
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
183 protected void rawContent(Nodeid nodeid, ByteChannel sink) throws HgException, IOException, CancelledException, HgInvalidRevisionException {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
184 rawContent(getRevisionIndex(nodeid), sink);
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
185 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
186
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
187 /**
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
188 * @param fileRevisionIndex - index of this file change (not a changelog revision index), non-negative. From predefined constants, only {@link HgRepository#TIP} makes sense.
354
5f9073eabf06 Propagate errors with exceptions up to a end client
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 347
diff changeset
189 * FIXME is it necessary to have IOException along with HgException here?
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
190 */
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
191 protected void rawContent(int fileRevisionIndex, ByteChannel sink) throws HgException, IOException, CancelledException, HgInvalidRevisionException {
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
192 if (sink == null) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
193 throw new IllegalArgumentException();
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
194 }
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
195 ContentPipe insp = new ContentPipe(sink, 0, repo.getContext().getLog());
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
196 insp.checkCancelled();
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
197 content.iterate(fileRevisionIndex, fileRevisionIndex, true, insp);
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
198 insp.checkFailed();
37
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
199 }
e45e75e22523 Parse changesets from bundle's changelog group. Refactor Revlog to provide access to revision's raw content
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 31
diff changeset
200
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
201 /**
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
202 * XXX perhaps, return value Nodeid[2] and boolean needNodeids is better (and higher level) API for this query?
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
203 *
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
204 * @param revision - revision to query parents, or {@link HgRepository#TIP}
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
205 * @param parentRevisions - int[2] to get local revision numbers of parents (e.g. {6, -1})
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
206 * @param parent1 - byte[20] or null, if parent's nodeid is not needed
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
207 * @param parent2 - byte[20] or null, if second parent's nodeid is not needed
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
208 * @throws HgInvalidRevisionException
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
209 * @throws IllegalArgumentException
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
210 */
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
211 public void parents(int revision, int[] parentRevisions, byte[] parent1, byte[] parent2) throws HgInvalidRevisionException, HgInvalidControlFileException {
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
212 if (revision != TIP && !(revision >= 0 && revision < content.revisionCount())) {
347
8da7ade36c57 Add specific IAE subclass to handle wrong (e.g. outdated after rollback) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 328
diff changeset
213 throw new HgInvalidRevisionException(revision);
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
214 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
215 if (parentRevisions == null || parentRevisions.length < 2) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
216 throw new IllegalArgumentException(String.valueOf(parentRevisions));
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
217 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
218 if (parent1 != null && parent1.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
219 throw new IllegalArgumentException(parent1.toString());
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
220 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
221 if (parent2 != null && parent2.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
222 throw new IllegalArgumentException(parent2.toString());
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
223 }
77
c677e1593919 Moved RevlogStream implementation into .internal
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
224 class ParentCollector implements RevlogStream.Inspector {
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
225 public int p1 = -1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
226 public int p2 = -1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
227 public byte[] nodeid;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
228
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
229 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
230 p1 = parent1Revision;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
231 p2 = parent2Revision;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
232 this.nodeid = new byte[20];
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
233 // nodeid arg now comes in 32 byte from (as in file format description), however upper 12 bytes are zeros.
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
234 System.arraycopy(nodeid, nodeid.length > 20 ? nodeid.length - 20 : 0, this.nodeid, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
235 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
236 };
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
237 ParentCollector pc = new ParentCollector();
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
238 content.iterate(revision, revision, false, pc);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
239 parentRevisions[0] = pc.p1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
240 parentRevisions[1] = pc.p2;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
241 if (parent1 != null) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
242 if (parentRevisions[0] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
243 Arrays.fill(parent1, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
244 } else {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
245 content.iterate(parentRevisions[0], parentRevisions[0], false, pc);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
246 System.arraycopy(pc.nodeid, 0, parent1, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
247 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
248 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
249 if (parent2 != null) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
250 if (parentRevisions[1] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
251 Arrays.fill(parent2, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
252 } else {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
253 content.iterate(parentRevisions[1], parentRevisions[1], false, pc);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
254 System.arraycopy(pc.nodeid, 0, parent2, 0, 20);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
255 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
256 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
257 }
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
258
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
259 @Experimental
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
260 public void walk(int start, int end, final Revlog.Inspector inspector) throws HgInvalidRevisionException, HgInvalidControlFileException {
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
261 int lastRev = getLastRevision();
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
262 if (start == TIP) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
263 start = lastRev;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
264 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
265 if (end == TIP) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
266 end = lastRev;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
267 }
356
91d75e1bac9f Consistent approach to deal with adaptable objects. Give adaptable precedence over instanceof to allow conditional response when classes do implement desired interface
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 355
diff changeset
268 final RevisionInspector revisionInsp = Adaptable.Factory.getAdapter(inspector, RevisionInspector.class, null);
91d75e1bac9f Consistent approach to deal with adaptable objects. Give adaptable precedence over instanceof to allow conditional response when classes do implement desired interface
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 355
diff changeset
269 final ParentInspector parentInsp = Adaptable.Factory.getAdapter(inspector, ParentInspector.class, null);
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
270 final Nodeid[] allRevisions = parentInsp == null ? null : new Nodeid[end - start + 1];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
271
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
272 content.iterate(start, end, false, new RevlogStream.Inspector() {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
273
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
274 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
275 Nodeid nid = Nodeid.fromBinary(nodeid, 0);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
276 if (revisionInsp != null) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
277 revisionInsp.next(revisionNumber, nid, linkRevision);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
278 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
279 if (parentInsp != null) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
280 Nodeid p1 = parent1Revision == -1 ? Nodeid.NULL : allRevisions[parent1Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
281 Nodeid p2 = parent2Revision == -1 ? Nodeid.NULL : allRevisions[parent2Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
282 allRevisions[revisionNumber] = nid;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
283 parentInsp.next(revisionNumber, nid, parent1Revision, parent2Revision, p1, p2);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
284 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
285 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
286 });
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
287 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
288
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
289 /**
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
290 * MARKER
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
291 */
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
292 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
293 public interface Inspector {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
294 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
295
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
296 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
297 public interface RevisionInspector extends Inspector {
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
298 void next(int revisionIndex, Nodeid revision, int linkedRevisionIndex);
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
299 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
300
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
301 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
302 public interface ParentInspector extends Inspector {
327
3f09b8c19142 Tests for Revlog.Inspectors
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 324
diff changeset
303 // XXX document whether parentX is -1 or a constant (BAD_REVISION? or dedicated?)
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
304 void next(int revisionIndex, Nodeid revision, int parent1, int parent2, Nodeid nidParent1, Nodeid nidParent2);
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
305 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
306
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
307 /*
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
308 * XXX think over if it's better to do either:
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
309 * pw = getChangelog().new ParentWalker(); pw.init() and pass pw instance around as needed
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
310 * or
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
311 * add Revlog#getParentWalker(), static class, make cons() and #init package-local, and keep SoftReference to allow walker reuse.
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
312 *
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
313 * and yes, walker is not a proper name
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
314 */
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
315 public final class ParentWalker implements ParentInspector {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
316
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
317
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
318 private Nodeid[] sequential; // natural repository order, childrenOf rely on ordering
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
319 private Nodeid[] sorted; // for binary search
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
320 private int[] sorted2natural;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
321 private Nodeid[] firstParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
322 private Nodeid[] secondParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
323
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
324 // Nodeid instances shall be shared between all arrays
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
325
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
326 public ParentWalker() {
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
327 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
328
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
329 public HgRepository getRepo() {
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
330 return Revlog.this.getRepo();
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
331 }
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
332
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
333 public void next(int revisionNumber, Nodeid revision, int parent1Revision, int parent2Revision, Nodeid nidParent1, Nodeid nidParent2) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
334 if (parent1Revision >= revisionNumber || parent2Revision >= revisionNumber) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
335 throw new IllegalStateException(); // sanity, revisions are sequential
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
336 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
337 int ix = revisionNumber;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
338 sequential[ix] = sorted[ix] = revision;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
339 if (parent1Revision != -1) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
340 firstParent[ix] = sequential[parent1Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
341 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
342 if (parent2Revision != -1) { // revlog of DataAccess.java has p2 set when p1 is -1
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
343 secondParent[ix] = sequential[parent2Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
344 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
345 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
346
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
347 public void init() throws HgInvalidControlFileException {
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
348 final int revisionCount = Revlog.this.getRevisionCount();
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
349 firstParent = new Nodeid[revisionCount];
393
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
350 // TODO [post 1.0] Branches/merges are less frequent, and most of secondParent would be -1/null, hence
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
351 // IntMap might be better alternative here, but need to carefully analyze (test) whether this brings
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
352 // real improvement (IntMap has 2n capacity, and element lookup is log(n) instead of array's constant)
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
353 secondParent = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
354 //
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
355 sequential = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
356 sorted = new Nodeid[revisionCount];
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
357 Revlog.this.walk(0, TIP, this);
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
358 Arrays.sort(sorted);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
359 sorted2natural = new int[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
360 for (int i = 0; i < revisionCount; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
361 Nodeid n = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
362 int x = Arrays.binarySearch(sorted, n);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
363 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
364 sorted2natural[x] = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
365 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
366 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
367
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
368 private void assertSortedIndex(int x) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
369 if (x < 0) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
370 throw new HgBadStateException();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
371 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
372 }
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
373
393
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
374 /**
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
375 * Tells whether supplied revision is from the walker's associated revlog.
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
376 * Note, {@link Nodeid#NULL}, although implicitly present as parent of a first revision, is not recognized as known.
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
377 * @param nid revision to check, not <code>null</code>
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
378 * @return <code>true</code> if revision matches any revision in this revlog
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
379 */
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
380 public boolean knownNode(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
381 return Arrays.binarySearch(sorted, nid) >= 0;
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
382 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
383
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
384 /**
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
385 * null if none. only known nodes (as per #knownNode) are accepted as arguments
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
386 */
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
387 public Nodeid firstParent(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
388 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
389 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
390 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
391 return firstParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
392 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
393
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
394 // never null, Nodeid.NULL if none known
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
395 public Nodeid safeFirstParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
396 Nodeid rv = firstParent(nid);
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
397 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
398 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
399
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
400 public Nodeid secondParent(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
401 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
402 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
403 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
404 return secondParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
405 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
406
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
407 public Nodeid safeSecondParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
408 Nodeid rv = secondParent(nid);
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
409 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
410 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
411
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
412 public boolean appendParentsOf(Nodeid nid, Collection<Nodeid> c) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
413 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
414 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
415 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
416 Nodeid p1 = firstParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
417 boolean modified = false;
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
418 if (p1 != null) {
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
419 modified = c.add(p1);
191
b777502a06f5 Do not assume second parent can be set only when first one is set, again
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 183
diff changeset
420 }
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
421 Nodeid p2 = secondParent[i];
191
b777502a06f5 Do not assume second parent can be set only when first one is set, again
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 183
diff changeset
422 if (p2 != null) {
b777502a06f5 Do not assume second parent can be set only when first one is set, again
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 183
diff changeset
423 modified = c.add(p2) || modified;
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
424 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
425 return modified;
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
426 }
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
427
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
428 // XXX alternative (and perhaps more reliable) approach would be to make a copy of allNodes and remove
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
429 // nodes, their parents and so on.
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
430
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
431 // @return ordered collection of all children rooted at supplied nodes. Nodes shall not be descendants of each other!
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
432 // Nodeids shall belong to this revlog
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
433 public List<Nodeid> childrenOf(List<Nodeid> roots) {
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
434 HashSet<Nodeid> parents = new HashSet<Nodeid>();
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
435 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
436 int earliestRevision = Integer.MAX_VALUE;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
437 assert sequential.length == firstParent.length && firstParent.length == secondParent.length;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
438 // first, find earliest index of roots in question, as there's no sense
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
439 // to check children among nodes prior to branch's root node
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
440 for (Nodeid r : roots) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
441 int x = Arrays.binarySearch(sorted, r);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
442 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
443 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
444 if (i < earliestRevision) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
445 earliestRevision = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
446 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
447 parents.add(sequential[i]); // add canonical instance in hope equals() is bit faster when can do a ==
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
448 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
449 for (int i = earliestRevision + 1; i < sequential.length; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
450 if (parents.contains(firstParent[i]) || parents.contains(secondParent[i])) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
451 parents.add(sequential[i]); // to find next child
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
452 result.add(sequential[i]);
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
453 }
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
454 }
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
455 return result;
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
456 }
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
457
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
458 /**
308
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
459 * @return revisions that have supplied revision as their immediate parent
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
460 */
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
461 public List<Nodeid> directChildren(Nodeid nid) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
462 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
463 int x = Arrays.binarySearch(sorted, nid);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
464 assertSortedIndex(x);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
465 nid = sorted[x]; // canonical instance
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
466 int start = sorted2natural[x];
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
467 for (int i = start + 1; i < sequential.length; i++) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
468 if (nid == firstParent[i] || nid == secondParent[i]) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
469 result.add(sequential[i]);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
470 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
471 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
472 return result;
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
473 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
474
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
475 /**
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
476 * @param nid possibly parent node, shall be {@link #knownNode(Nodeid) known} in this revlog.
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
477 * @return <code>true</code> if there's any node in this revlog that has specified node as one of its parents.
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
478 */
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
479 public boolean hasChildren(Nodeid nid) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
480 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
481 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
482 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
483 assert firstParent.length == secondParent.length; // just in case later I implement sparse array for secondParent
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
484 assert firstParent.length == sequential.length;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
485 // to use == instead of equals, take the same Nodeid instance we used to fill all the arrays.
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
486 final Nodeid canonicalNode = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
487 i++; // no need to check node itself. child nodes may appear in sequential only after revision in question
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
488 for (; i < sequential.length; i++) {
393
728708de3597 Resolve FIXMEs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
489 // TODO [post 1.0] likely, not very effective.
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
490 // May want to optimize it with another (Tree|Hash)Set, created on demand on first use,
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
491 // however, need to be careful with memory usage
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
492 if (firstParent[i] == canonicalNode || secondParent[i] == canonicalNode) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
493 return true;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
494 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
495 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
496 return false;
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
497 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
498 }
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
499
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
500 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
501 * Effective int to Nodeid and vice versa translation. It's advised to use this class instead of
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
502 * multiple {@link Revlog#getRevisionIndex(Nodeid)} calls.
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
503 *
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
504 * {@link Revlog#getRevisionIndex(Nodeid)} with straightforward lookup approach performs O(n/2)
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
505 * {@link RevisionMap#revisionIndex(Nodeid)} is log(n), plus initialization is O(n) (just once).
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
506 */
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
507 public final class RevisionMap implements RevisionInspector {
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
508 /*
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
509 * in fact, initialization is much slower as it instantiates Nodeids, while #getRevisionIndex
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
510 * compares directly against byte buffer. Measuring cpython with 70k+ gives 3 times difference (47 vs 171)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
511 * for complete changelog iteration.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
512 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
513
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
514 /*
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
515 * XXX 3 * (x * 4) bytes. Can I do better?
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
516 * It seems, yes. Don't need to keep sorted, always can emulate it with indirect access to sequential through sorted2natural.
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
517 * i.e. instead sorted[mid].compareTo(toFind), do sequential[sorted2natural[mid]].compareTo(toFind)
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
518 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
519 private Nodeid[] sequential; // natural repository order, childrenOf rely on ordering
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
520 private Nodeid[] sorted; // for binary search
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
521 private int[] sorted2natural;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
522
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
523 public RevisionMap() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
524 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
525
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
526 public HgRepository getRepo() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
527 return Revlog.this.getRepo();
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
528 }
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
529
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
530 public void next(int revisionIndex, Nodeid revision, int linkedRevision) {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
531 sequential[revisionIndex] = sorted[revisionIndex] = revision;
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
532 }
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
533
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
534 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
535 * @return <code>this</code> for convenience.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
536 */
366
189dc6dc1c3e Use exceptions to expose errors reading mercurial data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
537 public RevisionMap init(/*XXX Pool<Nodeid> to reuse nodeids, if possible. */) throws HgInvalidControlFileException{
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
538 // XXX HgRepository.register((RepoChangeListener) this); // listen to changes in repo, re-init if needed?
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
539 final int revisionCount = Revlog.this.getRevisionCount();
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
540 sequential = new Nodeid[revisionCount];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
541 sorted = new Nodeid[revisionCount];
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
542 Revlog.this.walk(0, TIP, this);
307
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
543 // next is alternative to Arrays.sort(sorted), and build sorted2natural looking up each element of sequential in sorted.
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
544 // the way sorted2natural was build is O(n*log n).
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
545 final ArrayHelper ah = new ArrayHelper();
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
546 ah.sort(sorted);
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
547 // note, values in ArrayHelper#getReversed are 1-based indexes, not 0-based
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
548 sorted2natural = ah.getReverse();
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
549 return this;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
550 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
551
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
552 public Nodeid revision(int revisionIndex) {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
553 return sequential[revisionIndex];
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
554 }
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
555 public int revisionIndex(Nodeid revision) {
274
9fb50c04f03c Use Nodeid.isNull check instead of NULL.equals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 243
diff changeset
556 if (revision == null || revision.isNull()) {
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
557 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
558 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
559 int x = Arrays.binarySearch(sorted, revision);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
560 if (x < 0) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
561 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
562 }
307
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
563 return sorted2natural[x]-1;
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
564 }
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
565 /**
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
566 * @deprecated use {@link #revisionIndex(Nodeid)} instead
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
567 */
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
568 @Deprecated
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
569 public int localRevision(Nodeid revision) {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
570 return revisionIndex(revision);
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 366
diff changeset
571 }
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
572 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
573
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
574 protected abstract static class ErrorHandlingInspector implements RevlogStream.Inspector, CancelSupport {
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
575 private Exception failure;
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
576 private CancelSupport cancelSupport;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
577
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
578 protected void setCancelSupport(CancelSupport cs) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
579 assert cancelSupport == null; // no reason to set it twice
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
580 cancelSupport = cs;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
581 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
582
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
583 protected void recordFailure(Exception ex) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
584 assert failure == null;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
585 failure = ex;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
586 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
587
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
588 public void checkFailed() throws HgException, IOException, CancelledException {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
589 if (failure == null) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
590 return;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
591 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
592 if (failure instanceof IOException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
593 throw (IOException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
594 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
595 if (failure instanceof CancelledException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
596 throw (CancelledException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
597 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
598 if (failure instanceof HgException) {
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
599 throw (HgException) failure;
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
600 }
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
601 throw new HgBadStateException(failure);
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
602 }
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
603
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
604 public void checkCancelled() throws CancelledException {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
605 if (cancelSupport != null) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
606 cancelSupport.checkCancelled();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
607 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
608 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
609 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
610
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
611 protected static class ContentPipe extends ErrorHandlingInspector implements RevlogStream.Inspector, CancelSupport {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
612 private final ByteChannel sink;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
613 private final int offset;
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
614 private final LogFacility logFacility;
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
615
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
616 /**
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
617 * @param _sink - cannot be <code>null</code>
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
618 * @param seekOffset - when positive, orders to pipe bytes to the sink starting from specified offset, not from the first byte available in DataAccess
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
619 * @param log optional facility to put warnings/debug messages into, may be null.
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
620 */
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
621 public ContentPipe(ByteChannel _sink, int seekOffset, LogFacility log) {
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
622 assert _sink != null;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
623 sink = _sink;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
624 setCancelSupport(CancelSupport.Factory.get(_sink));
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
625 offset = seekOffset;
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
626 logFacility = log;
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
627 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
628
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
629 protected void prepare(int revisionNumber, DataAccess da) throws HgException, IOException {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
630 if (offset > 0) { // save few useless reset/rewind operations
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
631 da.seek(offset);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
632 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
633 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
634
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
635 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
636 try {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
637 prepare(revisionNumber, da); // XXX perhaps, prepare shall return DA (sliced, if needed)
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
638 final ProgressSupport progressSupport = ProgressSupport.Factory.get(sink);
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
639 ByteBuffer buf = ByteBuffer.allocate(actualLen > 8192 ? 8192 : actualLen);
356
91d75e1bac9f Consistent approach to deal with adaptable objects. Give adaptable precedence over instanceof to allow conditional response when classes do implement desired interface
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 355
diff changeset
640 Preview p = Adaptable.Factory.getAdapter(sink, Preview.class, null);
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
641 if (p != null) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
642 progressSupport.start(2 * da.length());
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
643 while (!da.isEmpty()) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
644 checkCancelled();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
645 da.readBytes(buf);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
646 p.preview(buf);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
647 buf.clear();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
648 }
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
649 da.reset();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
650 prepare(revisionNumber, da);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
651 progressSupport.worked(da.length());
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
652 buf.clear();
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
653 } else {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
654 progressSupport.start(da.length());
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
655 }
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
656 while (!da.isEmpty()) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
657 checkCancelled();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
658 da.readBytes(buf);
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
659 buf.flip(); // post: position == 0
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
660 // XXX I may not rely on returned number of bytes but track change in buf position instead.
355
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
661
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
662 int consumed = sink.write(buf);
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
663 if ((consumed == 0 || consumed != buf.position()) && logFacility != null) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
664 logFacility.warn(getClass(), "Bad data sink when reading revision %d. Reported %d bytes consumed, byt actually read %d", revisionNumber, consumed, buf.position());
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
665 }
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
666 if (buf.position() == 0) {
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
667 throw new HgBadStateException("Bad sink implementation (consumes no bytes) results in endless loop");
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
668 }
f2c11fe7f3e9 Newline filter shall respect whole stream when deciding whether to process line terminators, hence added stream preview functionality
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
669 buf.compact(); // ensure (a) there's space for new (b) data starts at 0
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
670 progressSupport.worked(consumed);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
671 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
672 progressSupport.done(); // XXX shall specify whether #done() is invoked always or only if completed successfully.
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
673 } catch (IOException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
674 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
675 } catch (CancelledException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
676 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
677 } catch (HgException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
678 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
679 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
680 }
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 135
diff changeset
681 }
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
682 }