annotate src/org/tmatesoft/hg/repo/Revlog.java @ 336:f74e36b7344b

Do not fail with HgBadStateException when there are no merge state
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 11 Nov 2011 05:56:09 +0100
parents a674b8590362
children 8da7ade36c57
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 /*
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
2 * Copyright (c) 2010-2011 TMate Software Ltd
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;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
33 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
34 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
35 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
36 import org.tmatesoft.hg.internal.Experimental;
77
c677e1593919 Moved RevlogStream implementation into .internal
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
37 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
38 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
39 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
40 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
41 import org.tmatesoft.hg.util.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
42 import org.tmatesoft.hg.util.ProgressSupport;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
43
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
44
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 /**
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 * 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
47 *
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
48 * 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
49 * 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
50 * 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
51 *
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
52 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
53 * @author TMate Software Ltd.
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
55 abstract class Revlog {
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
57 private final HgRepository repo;
21
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
58 protected final RevlogStream content;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
60 protected Revlog(HgRepository hgRepo, RevlogStream contentStream) {
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 if (hgRepo == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
62 throw new IllegalArgumentException();
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
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 if (contentStream == null) {
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 56
diff changeset
65 throw new IllegalArgumentException();
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
67 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
68 content = contentStream;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
69 }
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
70
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
71 // invalid Revlog
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
72 protected Revlog(HgRepository hgRepo) {
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
73 repo = hgRepo;
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
74 content = null;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75 }
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 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
78 return repo;
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
135
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
81 public final int getRevisionCount() {
21
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
82 return content.revisionCount();
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 3
diff changeset
83 }
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
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 getLastRevision() {
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
86 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
87 }
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
88
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 Nodeid getRevision(int revision) {
328
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
90 // 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
91 return Nodeid.fromBinary(content.nodeid(revision), 0);
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
92 }
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
93
328
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
94 /**
a674b8590362 Move file tree history to upper API level
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 327
diff changeset
95 * 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
96 */
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
97 public final List<Nodeid> getRevisions(int... revisions) {
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
98 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
99 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
100 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
101 return rv;
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
102 }
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
103
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
104 /*package-local*/ void getRevisionsInternal(final List<Nodeid> retVal, int[] sortedRevs) {
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
105 // 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
106 // 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
107 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
108
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
109 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
110 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
111 }
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
112 });
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
113 }
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
114
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
115 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
116 * Get local revision number (index) of the specified revision.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
117 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
118 * 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
119 * Alternatively, if you need to perform multiple queries (e.g. at least 15-20), {@link RevisionMap} may come handy.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
120 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
121 * @param nid revision to look up
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
122 * @return revision index, or {@link HgRepository#BAD_REVISION} if specified revision not found.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
123 */
135
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
124 public final int getLocalRevision(Nodeid nid) {
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
125 int revision = content.findLocalRevisionNumber(nid);
80
4222b04f34ee Follow history of a file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
126 if (revision == BAD_REVISION) {
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
127 throw new IllegalArgumentException(String.format("%s doesn't represent a revision of %s", nid.toString(), this /*XXX HgDataFile.getPath might be more suitable here*/));
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
128 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
129 return revision;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
130 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
131
39
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
132 // Till now, i follow approach that NULL nodeid is never part of revlog
135
3959bffb14e9 explicit op name instead math op to get last rev number
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 115
diff changeset
133 public final boolean isKnown(Nodeid nodeid) {
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
134 final int rn = content.findLocalRevisionNumber(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
135 if (BAD_REVISION == rn) {
39
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
136 return false;
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
137 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
138 if (rn < 0 || rn >= content.revisionCount()) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
139 // Sanity check
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
140 throw new IllegalStateException();
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
141 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
142 return true;
39
4e9b66b07a28 Check changelog group starts with proper (known) base
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 37
diff changeset
143 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
144
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
145 /**
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
146 * 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
147 * @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
148 */
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
149 protected void rawContent(Nodeid nodeid, ByteChannel sink) 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
150 rawContent(getLocalRevision(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
151 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
152
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
153 /**
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
154 * @param revision - repo-local index of this file change (not a changelog revision number!)
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
155 */
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
156 protected void rawContent(int revision, ByteChannel sink) 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
157 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
158 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
159 }
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
160 ContentPipe insp = new ContentPipe(sink, 0);
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
161 insp.checkCancelled();
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
162 content.iterate(revision, revision, 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
163 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
164 }
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
165
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
166 /**
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
167 * 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
168 *
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
169 * @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
170 * @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
171 * @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
172 * @param parent2 - byte[20] or null, if second parent's nodeid is not needed
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
173 * @return
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
174 */
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
175 public void parents(int revision, int[] parentRevisions, byte[] parent1, byte[] parent2) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
176 if (revision != TIP && !(revision >= 0 && revision < content.revisionCount())) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
177 throw new IllegalArgumentException(String.valueOf(revision));
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
178 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
179 if (parentRevisions == null || parentRevisions.length < 2) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
180 throw new IllegalArgumentException(String.valueOf(parentRevisions));
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
181 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
182 if (parent1 != null && parent1.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
183 throw new IllegalArgumentException(parent1.toString());
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
184 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
185 if (parent2 != null && parent2.length < 20) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
186 throw new IllegalArgumentException(parent2.toString());
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
187 }
77
c677e1593919 Moved RevlogStream implementation into .internal
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
188 class ParentCollector implements RevlogStream.Inspector {
56
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
189 public int p1 = -1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
190 public int p2 = -1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
191 public byte[] nodeid;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
192
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
193 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
194 p1 = parent1Revision;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
195 p2 = parent2Revision;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
196 this.nodeid = new byte[20];
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
197 // 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
198 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
199 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
200 };
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
201 ParentCollector pc = new ParentCollector();
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
202 content.iterate(revision, revision, false, pc);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
203 parentRevisions[0] = pc.p1;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
204 parentRevisions[1] = pc.p2;
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
205 if (parent1 != null) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
206 if (parentRevisions[0] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
207 Arrays.fill(parent1, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
208 } else {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
209 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
210 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
211 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
212 }
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
213 if (parent2 != null) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
214 if (parentRevisions[1] == -1) {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
215 Arrays.fill(parent2, 0, 20, (byte) 0);
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
216 } else {
576d6e8a09f6 Analog of 'hg status --change' command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 49
diff changeset
217 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
218 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
219 }
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 }
317
09628675bcee Rework file history build approach to match rest of the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 308
diff changeset
222
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
223 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
224 public void walk(int start, int end, final Revlog.Inspector inspector) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
225 int lastRev = getLastRevision();
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
226 if (start == TIP) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
227 start = lastRev;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
228 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
229 if (end == TIP) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
230 end = lastRev;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
231 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
232 final RevisionInspector revisionInsp = getAdapter(inspector, RevisionInspector.class);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
233 final ParentInspector parentInsp = getAdapter(inspector, ParentInspector.class);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
234 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
235
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
236 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
237
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
238 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
239 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
240 if (revisionInsp != null) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
241 revisionInsp.next(revisionNumber, nid, linkRevision);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
242 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
243 if (parentInsp != null) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
244 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
245 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
246 allRevisions[revisionNumber] = nid;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
247 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
248 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
249 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
250 });
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
251 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
252 private static <T> T getAdapter(Object o, Class<T> adapterClass) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
253 if (adapterClass.isInstance(o)) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
254 return adapterClass.cast(o);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
255 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
256 if (o instanceof Adaptable) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
257 return ((Adaptable) o).getAdapter(adapterClass);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
258 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
259 return null;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
260 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
261
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
262 /**
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
263 * MARKER
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 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
266 public interface Inspector {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
267 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
268
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
269 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
270 public interface RevisionInspector extends Inspector {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
271 void next(int localRevision, Nodeid revision, int linkedRevision);
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
272 }
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 @Experimental
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
275 public interface ParentInspector extends Inspector {
327
3f09b8c19142 Tests for Revlog.Inspectors
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 324
diff changeset
276 // XXX document whether parentX is -1 or a constant (BAD_REVISION? or dedicated?)
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
277 void next(int localRevision, Nodeid revision, int parent1, int parent2, Nodeid nidParent1, Nodeid nidParent2);
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
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
280 /*
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
281 * 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
282 * 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
283 * or
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
284 * 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
285 *
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
286 * 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
287 */
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
288 public final class ParentWalker implements ParentInspector {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
289
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
290
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
291 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
292 private Nodeid[] sorted; // for binary search
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
293 private int[] sorted2natural;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
294 private Nodeid[] firstParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
295 private Nodeid[] secondParent;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
296
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
297 // 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
298
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
299 public ParentWalker() {
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
300 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
301
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
302 public HgRepository getRepo() {
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
303 return Revlog.this.getRepo();
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
304 }
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
305
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
306 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
307 if (parent1Revision >= revisionNumber || parent2Revision >= revisionNumber) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
308 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
309 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
310 int ix = revisionNumber;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
311 sequential[ix] = sorted[ix] = revision;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
312 if (parent1Revision != -1) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
313 firstParent[ix] = sequential[parent1Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
314 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
315 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
316 secondParent[ix] = sequential[parent2Revision];
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
317 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
318 }
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
319
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
320 public void init() {
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
321 final int revisionCount = Revlog.this.getRevisionCount();
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
322 firstParent = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
323 // although branches/merges are less frequent, and most of secondParent would be -1/null, some sort of
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
324 // SparseOrderedList might be handy, provided its inner structures do not overweight simplicity of an array
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
325 // FIXME IntMap is right candidate?
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
326 secondParent = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
327 //
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
328 sequential = new Nodeid[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
329 sorted = new Nodeid[revisionCount];
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
330 Revlog.this.walk(0, TIP, this);
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
331 Arrays.sort(sorted);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
332 sorted2natural = new int[revisionCount];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
333 for (int i = 0; i < revisionCount; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
334 Nodeid n = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
335 int x = Arrays.binarySearch(sorted, n);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
336 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
337 sorted2natural[x] = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
338 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
339 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
340
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
341 private void assertSortedIndex(int x) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
342 if (x < 0) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
343 throw new HgBadStateException();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
344 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
345 }
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
346
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
347 // FIXME need to decide whether Nodeid(00 * 20) is always known or not
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
348 // right now Nodeid.NULL is not recognized as known if passed to this method,
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
349 // caller is supposed to make explicit check
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
350 public boolean knownNode(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
351 return Arrays.binarySearch(sorted, nid) >= 0;
31
346b66add79d Basic lookup for incoming changes
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 29
diff changeset
352 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
353
200
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 * 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
356 */
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
357 public Nodeid firstParent(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
358 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
359 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
360 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
361 return firstParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
362 }
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
363
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
364 // 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
365 public Nodeid safeFirstParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
366 Nodeid rv = firstParent(nid);
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
367 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
368 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
369
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
370 public Nodeid secondParent(Nodeid nid) {
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
371 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
372 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
373 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
374 return secondParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
375 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
376
49
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
377 public Nodeid safeSecondParent(Nodeid nid) {
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
378 Nodeid rv = secondParent(nid);
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
379 return rv == null ? Nodeid.NULL : rv;
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
380 }
26e3eeaa3962 branch and user filtering for log operation
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 39
diff changeset
381
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
382 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
383 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
384 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
385 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
386 Nodeid p1 = firstParent[i];
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
387 boolean modified = false;
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
388 if (p1 != null) {
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
389 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
390 }
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
391 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
392 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
393 modified = c.add(p2) || modified;
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
394 }
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
395 return modified;
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
396 }
171
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
397
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
398 // 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
399 // 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
400
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
401 // @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
402 // Nodeids shall belong to this revlog
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
403 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
404 HashSet<Nodeid> parents = new HashSet<Nodeid>();
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
405 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
406 int earliestRevision = Integer.MAX_VALUE;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
407 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
408 // 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
409 // 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
410 for (Nodeid r : roots) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
411 int x = Arrays.binarySearch(sorted, r);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
412 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
413 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
414 if (i < earliestRevision) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
415 earliestRevision = i;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
416 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
417 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
418 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
419 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
420 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
421 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
422 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
423 }
2c3e96674e2a Towards outgoing changes - initial detection logic, get connected with remote repo stub
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
424 }
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
425 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
426 }
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
427
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
428 /**
308
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
429 * @return revisions that have supplied revision as their immediate parent
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
430 */
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
431 public List<Nodeid> directChildren(Nodeid nid) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
432 LinkedList<Nodeid> result = new LinkedList<Nodeid>();
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
433 int x = Arrays.binarySearch(sorted, nid);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
434 assertSortedIndex(x);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
435 nid = sorted[x]; // canonical instance
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
436 int start = sorted2natural[x];
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
437 for (int i = start + 1; i < sequential.length; i++) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
438 if (nid == firstParent[i] || nid == secondParent[i]) {
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
439 result.add(sequential[i]);
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
440 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
441 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
442 return result;
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
443 }
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
444
3f40262153a4 Recognize closed branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 307
diff changeset
445 /**
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
446 * @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
447 * @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
448 */
200
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
449 public boolean hasChildren(Nodeid nid) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
450 int x = Arrays.binarySearch(sorted, nid);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
451 assertSortedIndex(x);
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
452 int i = sorted2natural[x];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
453 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
454 assert firstParent.length == sequential.length;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
455 // 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
456 final Nodeid canonicalNode = sequential[i];
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
457 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
458 for (; i < sequential.length; i++) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
459 // FIXME likely, not very effective.
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
460 // 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
461 // 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
462 if (firstParent[i] == canonicalNode || secondParent[i] == canonicalNode) {
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
463 return true;
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
464 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
465 }
114c9fe7b643 Performance optimization: reduce memory ParentWalker hogs
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 197
diff changeset
466 return false;
192
e5407b5a586a Incoming and Outgoing commands are alive
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 191
diff changeset
467 }
29
6cce719bbb62 Collector for nodes and their parents
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 24
diff changeset
468 }
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
469
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
470 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
471 * Effective int to Nodeid and vice versa translation. It's advised to use this class instead of
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
472 * multiple {@link Revlog#getLocalRevision(Nodeid)} calls.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
473 *
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
474 * getLocalRevision(Nodeid) with straightforward lookup approach performs O(n/2)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
475 * #localRevision() is log(n), plus initialization is O(n)
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
476 */
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
477 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
478 /*
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
479 * in fact, initialization is much slower as it instantiates Nodeids, while #getLocalRevision
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
480 * 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
481 * for complete changelog iteration.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
482 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
483
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
484 /*
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
485 * 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
486 * 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
487 * 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
488 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
489 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
490 private Nodeid[] sorted; // for binary search
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
491 private int[] sorted2natural;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
492
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
493 public RevisionMap() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
494 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
495
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
496 public HgRepository getRepo() {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
497 return Revlog.this.getRepo();
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
498 }
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
499
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
500 public void next(int localRevision, Nodeid revision, int linkedRevision) {
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
501 sequential[localRevision] = sorted[localRevision] = revision;
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
502 }
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
503
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
504 /**
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
505 * @return <code>this</code> for convenience.
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
506 */
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
507 public RevisionMap init(/*XXX Pool<Nodeid> to reuse nodeids, if possible. */) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
508 // 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
509 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
510 sequential = new Nodeid[revisionCount];
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
511 sorted = new Nodeid[revisionCount];
324
283b294d1079 Explore alternatives to access file-changelog combined history
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 317
diff changeset
512 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
513 // 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
514 // 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
515 final ArrayHelper ah = new ArrayHelper();
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
516 ah.sort(sorted);
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
517 // 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
518 sorted2natural = ah.getReverse();
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
519 return this;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
520 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
521
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
522 public Nodeid revision(int localRevision) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
523 return sequential[localRevision];
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 public int localRevision(Nodeid revision) {
274
9fb50c04f03c Use Nodeid.isNull check instead of NULL.equals
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 243
diff changeset
526 if (revision == null || revision.isNull()) {
243
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
527 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
528 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
529 int x = Arrays.binarySearch(sorted, revision);
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
530 if (x < 0) {
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
531 return BAD_REVISION;
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
532 }
307
2f2ab5c27f41 Collect sort reverse indexes along with array sorting
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 277
diff changeset
533 return sorted2natural[x]-1;
243
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 }
0e01f9182e16 External cache Nodeid<->int added, Revlog.RevisionMap
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
536
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
537 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
538 private Exception failure;
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
539 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
540
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
541 protected void setCancelSupport(CancelSupport cs) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
542 assert cancelSupport == null; // no reason to set it twice
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
543 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
544 }
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
545
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
546 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
547 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
548 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
549 }
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
550
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
551 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
552 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
553 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
554 }
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
555 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
556 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
557 }
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
558 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
559 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
560 }
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
561 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
562 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
563 }
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
564 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
565 }
277
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
566
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
567 public void checkCancelled() throws CancelledException {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
568 if (cancelSupport != null) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
569 cancelSupport.checkCancelled();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
570 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
571 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
572 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
573
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
574 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
575 private final ByteChannel sink;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
576 private final int offset;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
577
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
578 /**
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
579 * @param _sink - cannot be <code>null</code>
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
580 * @param seekOffset - when positive, orders to pipe bytes to the sink starting from specified offset, not from the first byte available in DataAccess
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
581 */
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
582 public ContentPipe(ByteChannel _sink, int seekOffset) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
583 assert _sink != null;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
584 sink = _sink;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
585 setCancelSupport(CancelSupport.Factory.get(_sink));
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
586 offset = seekOffset;
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
587 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
588
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
589 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
590 if (offset > 0) { // save few useless reset/rewind operations
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
591 da.seek(offset);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
592 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
593 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
594
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
595 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
596 try {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
597 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
598 final ProgressSupport progressSupport = ProgressSupport.Factory.get(sink);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
599 ByteBuffer buf = ByteBuffer.allocate(512);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
600 progressSupport.start(da.length());
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
601 while (!da.isEmpty()) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
602 checkCancelled();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
603 da.readBytes(buf);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
604 buf.flip();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
605 // XXX I may not rely on returned number of bytes but track change in buf position instead.
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
606 int consumed = sink.write(buf);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
607 // FIXME in fact, bad sink implementation (that consumes no bytes) would result in endless loop. Need to account for this
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
608 buf.compact();
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
609 progressSupport.worked(consumed);
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 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
612 } catch (IOException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
613 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
614 } catch (CancelledException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
615 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
616 } catch (HgException ex) {
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
617 recordFailure(ex);
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
618 }
74e7493a042a Favor delegation over generalization
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 274
diff changeset
619 }
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
620 }
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
621 }