Mercurial > jhg

annotate src/org/tmatesoft/hg/core/HgCatCommand.java @ 699:a483b2b68a2e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Provisional APIs and respective implementation for http, https and ssh remote repositories
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 08 Aug 2013 19:18:50 +0200
parents b286222158be
children
rev   line source
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
565
78a9e26e670d Refactor common code to initialize changelog revision for a command into standalone class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 427
diff changeset
2 * Copyright (c) 2011-2013 TMate Software Ltd
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
130
7567f4a42fe5 Correct contact address
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 121
diff changeset
15 * contact TMate Software at support@hg4j.com
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.core;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
19 import static org.tmatesoft.hg.repo.HgInternals.wrongRevisionIndex;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import static org.tmatesoft.hg.repo.HgRepository.TIP;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
322
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
23 import java.io.IOException;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
24 import java.nio.ByteBuffer;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25
683
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
26 import org.tmatesoft.hg.internal.CsetParamKeeper;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 import org.tmatesoft.hg.repo.HgDataFile;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 import org.tmatesoft.hg.repo.HgRepository;
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
29 import org.tmatesoft.hg.repo.HgRuntimeException;
322
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
30 import org.tmatesoft.hg.util.Adaptable;
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 107
diff changeset
31 import org.tmatesoft.hg.util.ByteChannel;
322
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
32 import org.tmatesoft.hg.util.CancelSupport;
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
33 import org.tmatesoft.hg.util.CancelledException;
690
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
34 import org.tmatesoft.hg.util.Outcome;
133
4a948ec83980 core.Path to util.Path as it's not Hg repo dependant
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 131
diff changeset
35 import org.tmatesoft.hg.util.Path;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 /**
131
aa1629f36482 Renamed .core classes to start with Hg prefix
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 130
diff changeset
38 * Command to obtain content of a file, 'hg cat' counterpart.
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 *
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 * @author Artem Tikhomirov
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 * @author TMate Software Ltd.
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 */
215
41a778e3fd31 Issue 5: Facilities for progress and cancellation. More specific exceptions. Exceptions from callbacks as RuntimeException
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
43 public class HgCatCommand extends HgAbstractCommand<HgCatCommand> {
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 private final HgRepository repo;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 private Path file;
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
47 private int revisionIndex = TIP;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 private Nodeid revision;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
49 private Nodeid cset;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50
131
aa1629f36482 Renamed .core classes to start with Hg prefix
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 130
diff changeset
51 public HgCatCommand(HgRepository hgRepo) {
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 repo = hgRepo;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
55 /**
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
56 * File to read, required parameter
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
57 * @param fname path to a repository file, can't be <code>null</code>
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
58 * @return <code>this</code> for convenience
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
59 * @throws IllegalArgumentException if supplied fname is null or points to directory
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
60 */
131
aa1629f36482 Renamed .core classes to start with Hg prefix
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 130
diff changeset
61 public HgCatCommand file(Path fname) {
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
62 if (fname == null || fname.isDirectory()) {
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
63 throw new IllegalArgumentException(String.valueOf(fname));
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
64 }
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 file = fname;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 return this;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
69 /**
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
70 * Select specific revision of the file to cat with revision local index. Note, revision numbering is of particular file, not that of
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
71 * repository (i.e. revision 0 means initial content of the file, irrespective of changeset revision at the time of commit)
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
72 *
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
73 * Invocation of this method clears revision set with {@link #revision(Nodeid)} or {@link #revision(int)} earlier.
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
74 *
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
75 * @param fileRevisionIndex - revision local index, non-negative, or one of predefined constants. Note, use of {@link HgRepository#BAD_REVISION},
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
76 * although possible, makes little sense (command would fail if executed).
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
77 * @return <code>this</code> for convenience
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
78 */
683
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
79 public HgCatCommand revision(int fileRevisionIndex) { // TODO [2.0 API break] shall throw HgBadArgumentException, like other commands do
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
80 if (wrongRevisionIndex(fileRevisionIndex)) {
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
81 throw new IllegalArgumentException(String.valueOf(fileRevisionIndex));
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
82 }
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
83 revisionIndex = fileRevisionIndex;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84 revision = null;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
85 cset = null;
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86 return this;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
87 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
88
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
89 /**
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
90 * Select file revision to read. Note, this revision is file revision (i.e. the one from manifest), not the changeset revision.
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
91 *
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
92 * Invocation of this method clears revision set with {@link #revision(int)} or {@link #revision(Nodeid)} earlier.
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
93 *
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
94 * @param nodeid - unique file revision identifier, Note, use of <code>null</code> or {@link Nodeid#NULL} is senseless
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
95 * @return <code>this</code> for convenience
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
96 */
131
aa1629f36482 Renamed .core classes to start with Hg prefix
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 130
diff changeset
97 public HgCatCommand revision(Nodeid nodeid) {
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
98 if (nodeid != null && nodeid.isNull()) {
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
99 nodeid = null;
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
100 }
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
101 revision = nodeid;
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
102 revisionIndex = BAD_REVISION;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
103 cset = null;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
104 return this;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
105 }
248
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
106
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
107 /**
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
108 * Parameterize the command from file revision object.
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
109 *
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
110 * @param fileRev file revision to cat
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
111 * @return <code>this</code> for convenience
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
112 */
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
113 public HgCatCommand revision(HgFileRevision fileRev) {
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
114 return file(fileRev.getPath()).revision(fileRev.getRevision());
3fbfce107f94 Issue 8: Means to find out information about given file at specific changeset. Inner ManifestRevisionInspector got promoted to ManifestRevision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 237
diff changeset
115 }
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
116
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
117 /**
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
118 * Select whatever revision of the file that was actual at the time of the specified changeset. Unlike {@link #revision(int)} or {@link #revision(Nodeid)}, this method
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
119 * operates in terms of repository global revisions (aka changesets).
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
120 *
368
8107b95f4280 Update Javadoc with 'revision index'
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 367
diff changeset
121 * Invocation of this method clears selection of a file revision with its index.
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
122 *
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
123 * @param nodeid changeset revision
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
124 * @return <code>this</code> for convenience
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
125 */
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
126 public HgCatCommand changeset(Nodeid nodeid) {
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
127 revisionIndex = BAD_REVISION;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
128 revision = null;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
129 cset = nodeid;
565
78a9e26e670d Refactor common code to initialize changelog revision for a command into standalone class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 427
diff changeset
130 // TODO [2.0 API break] shall use CsetParamKeeper instead, but Exception thrown would break the API
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
131 return this;
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
132 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
133
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
134 /**
683
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
135 * Select file by changeset
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
136 * @see #changeset(Nodeid)
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
137 * @param revisionIndex index of changelog revision
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
138 * @return <code>this</code> for convenience
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
139 * @throws HgBadArgumentException if failed to find supplied changeset revision
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
140 */
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
141 public HgCatCommand changeset(int revisionIndex) throws HgBadArgumentException {
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
142 int ri = new CsetParamKeeper(repo).set(revisionIndex).get();
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
143 return changeset(repo.getChangelog().getRevision(ri));
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
144 }
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
145
98ff1fb49abe Update commands to use changeset Nodeid and int in uniform way, clients of core.* classes shall not go back and forth from int to Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 565
diff changeset
146 /**
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
147 * Runs the command with current set of parameters and pipes data to provided sink.
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
148 *
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
149 * @param sink output channel to write data to.
396
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 368
diff changeset
150 *
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 368
diff changeset
151 * @throws HgBadArgumentException if no target file node found
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
152 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
153 * @throws CancelledException if execution of the command was cancelled
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
154 * @throws IllegalArgumentException when command arguments are incomplete or wrong
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
155 */
396
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 368
diff changeset
156 public void execute(ByteChannel sink) throws HgException, CancelledException {
0ae53c32ecef Straighten out exceptions thrown when file access failed - three is too much
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 368
diff changeset
157 // XXX perhaps, IAE together with HgBadArgumentException is not the best idea
367
2fadf8695f8a Use 'revision index' instead of the vague 'local revision number' concept in the API
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 356
diff changeset
158 if (revisionIndex == BAD_REVISION && revision == null && cset == null) {
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
159 throw new IllegalArgumentException("File revision, corresponing local number, or a changset nodeid shall be specified");
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
160 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
161 if (file == null) {
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
162 throw new IllegalArgumentException("Name of the file is missing");
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
163 }
115
c0cc2535462c Introduced channels to pipeline (and easily filter) data streams
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 107
diff changeset
164 if (sink == null) {
148
1a7a9a20e1f9 Exceptions, javadoc. Initial cancel and progress support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 133
diff changeset
165 throw new IllegalArgumentException("Need an output channel");
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
166 }
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
167 try {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
168 HgDataFile dataFile = repo.getFileNode(file);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
169 if (!dataFile.exists()) {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
170 // TODO may benefit from repo.getStoragePath to print revlog location in addition to human-friendly file path
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
171 throw new HgPathNotFoundException(String.format("File %s not found in the repository", file), file);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
172 }
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
173 int revToExtract;
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
174 if (cset != null) {
690
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
175 // TODO HgChangesetFileSneaker is handy, but bit too much here, shall extract follow rename code into separate utility
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
176 HgChangesetFileSneaker fsneaker = new HgChangesetFileSneaker(repo);
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
177 fsneaker.changeset(cset).followRenames(true);
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
178 Outcome o = fsneaker.check(file);
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
179 if (!o.isOk()) {
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
180 if (o.getException() instanceof HgRuntimeException) {
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
181 throw new HgLibraryFailureException(o.getMessage(), (HgRuntimeException) o.getException());
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
182 }
690
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
183 throw new HgBadArgumentException(o.getMessage(), o.getException()).setFileName(file).setRevision(cset);
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
184 }
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
185 if (!fsneaker.exists()) {
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
186 throw new HgPathNotFoundException(o.getMessage(), file).setRevision(cset);
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
187 }
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
188 Nodeid toExtract = fsneaker.revision();
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
189 if (fsneaker.hasAnotherName()) {
b286222158be Fix file.isCopy() use for status and cat commands
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 683
diff changeset
190 dataFile = repo.getFileNode(fsneaker.filename());
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
191 }
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
192 revToExtract = dataFile.getRevisionIndex(toExtract);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
193 } else if (revision != null) {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
194 revToExtract = dataFile.getRevisionIndex(revision);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
195 } else {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
196 revToExtract = revisionIndex;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 215
diff changeset
197 }
427
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
198 ByteChannel sinkWrap;
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
199 if (getCancelSupport(null, false) == null) {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
200 // no command-specific cancel helper, no need for extra proxy
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
201 // sink itself still may supply CS
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
202 sinkWrap = sink;
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
203 } else {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
204 // try CS from sink, if any. at least there is CS from command
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
205 CancelSupport cancelHelper = getCancelSupport(sink, true);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
206 cancelHelper.checkCancelled();
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
207 sinkWrap = new ByteChannelProxy(sink, cancelHelper);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
208 }
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
209 dataFile.contentWithFilters(revToExtract, sinkWrap);
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
210 } catch (HgRuntimeException ex) {
31a89587eb04 FIXMEs: consistent names, throws for commands and their handlers. Use of checked exceptions in hi-level api
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
211 throw new HgLibraryFailureException(ex);
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
212 }
322
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
213 }
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
214
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
215 private static class ByteChannelProxy implements ByteChannel, Adaptable {
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
216 private final ByteChannel delegate;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
217 private final CancelSupport cancelHelper;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
218
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
219 public ByteChannelProxy(ByteChannel _delegate, CancelSupport cs) {
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
220 assert _delegate != null;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
221 delegate = _delegate;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
222 cancelHelper = cs;
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
223 }
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
224 public int write(ByteBuffer buffer) throws IOException, CancelledException {
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
225 return delegate.write(buffer);
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
226 }
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
227
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
228 public <T> T getAdapter(Class<T> adapterClass) {
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
229 if (CancelSupport.class == adapterClass) {
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
230 return adapterClass.cast(cancelHelper);
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
231 }
356
91d75e1bac9f Consistent approach to deal with adaptable objects. Give adaptable precedence over instanceof to allow conditional response when classes do implement desired interface
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 354
diff changeset
232 return Adaptable.Factory.getAdapter(delegate, adapterClass, null);
322
d68dcb3b5f49 Propagate command's CancelSupport to low-level API. CancelSupport from context got priority over one from command
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 248
diff changeset
233 }
107
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
234 }
7ec89d637f50 CatCommand
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
235 }