Mercurial > jhg
annotate src/org/tmatesoft/hg/repo/HgChangelog.java @ 670:52af7f62e731
AIOOBE in BundleGenerator.ChunkGenerator.iterate when there are no outgoing changes on push
| author | Artem Tikhomirov <tikhomirov.artem@gmail.com> | 
|---|---|
| date | Fri, 12 Jul 2013 15:27:43 +0200 | 
| parents | fba85bc1dfb8 | 
| children | 545b1d4cc11d | 
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changeset | 1 /* | 
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changeset | 2 * Copyright (c) 2010-2013 TMate Software Ltd | 
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changeset | 3 * | 
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changeset | 4 * This program is free software; you can redistribute it and/or modify | 
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changeset | 5 * it under the terms of the GNU General Public License as published by | 
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changeset | 6 * the Free Software Foundation; version 2 of the License. | 
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changeset | 7 * | 
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changeset | 8 * This program is distributed in the hope that it will be useful, | 
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changeset | 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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changeset | 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 
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changeset | 11 * GNU General Public License for more details. | 
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changeset | 12 * | 
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changeset | 13 * For information on how to redistribute this software under | 
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changeset | 14 * the terms of a license other than GNU General Public License | 
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changeset | 15 * contact TMate Software at support@hg4j.com | 
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changeset | 16 */ | 
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changeset | 17 package org.tmatesoft.hg.repo; | 
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changeset | 18 | 
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changeset | 19 import java.io.IOException; | 
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changeset | 20 import java.util.ArrayList; | 
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changeset | 21 import java.util.Arrays; | 
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changeset | 22 import java.util.Calendar; | 
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changeset | 23 import java.util.Collections; | 
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changeset | 24 import java.util.Date; | 
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changeset | 25 import java.util.Formatter; | 
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changeset | 26 import java.util.HashMap; | 
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changeset | 27 import java.util.List; | 
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changeset | 28 import java.util.Locale; | 
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changeset | 29 import java.util.Map; | 
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changeset | 30 import java.util.TimeZone; | 
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changeset | 31 | 
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changeset | 32 import org.tmatesoft.hg.core.Nodeid; | 
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changeset | 33 import org.tmatesoft.hg.core.SessionContext; | 
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changeset | 34 import org.tmatesoft.hg.internal.Callback; | 
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changeset | 35 import org.tmatesoft.hg.internal.DataAccess; | 
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changeset | 36 import org.tmatesoft.hg.internal.EncodingHelper; | 
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changeset | 37 import org.tmatesoft.hg.internal.Internals; | 
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changeset | 38 import org.tmatesoft.hg.internal.Lifecycle; | 
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changeset | 39 import org.tmatesoft.hg.internal.LifecycleBridge; | 
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changeset | 40 import org.tmatesoft.hg.internal.Pool; | 
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changeset | 41 import org.tmatesoft.hg.internal.RevlogStream; | 
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changeset | 42 import org.tmatesoft.hg.util.Adaptable; | 
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changeset | 43 import org.tmatesoft.hg.util.CancelSupport; | 
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changeset | 44 import org.tmatesoft.hg.util.ProgressSupport; | 
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changeset | 45 | 
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changeset | 46 /** | 
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changeset | 47 * Representation of the Mercurial changelog file (list of ChangeSets) | 
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changeset | 49 * @author Artem Tikhomirov | 
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changeset | 50 * @author TMate Software Ltd. | 
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changeset | 51 */ | 
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changeset | 52 public final class HgChangelog extends Revlog { | 
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changeset | 53 | 
| 153 | 54 /* package-local */HgChangelog(HgRepository hgRepo, RevlogStream content) { | 
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changeset | 55 super(hgRepo, content, true); | 
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changeset | 56 } | 
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changeset | 57 | 
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changeset | 58 /** | 
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changeset | 59 * Iterate over whole changelog | 
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changeset | 60 * @param inspector callback to process entries | 
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changeset | 61 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em> | 
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changeset | 62 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em> | 
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changeset | 63 */ | 
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changeset | 64 public void all(final HgChangelog.Inspector inspector) throws HgRuntimeException { | 
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changeset | 65 range(0, getLastRevision(), inspector); | 
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changeset | 66 } | 
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changeset | 67 | 
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changeset | 68 /** | 
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changeset | 69 * Iterate over changelog part | 
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changeset | 70 * @param start first changelog entry to process | 
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changeset | 71 * @param end last changelog entry to process | 
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changeset | 72 * @param inspector callback to process entries | 
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changeset | 73 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog. <em>Runtime exception</em> | 
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changeset | 74 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em> | 
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changeset | 75 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em> | 
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changeset | 76 */ | 
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changeset | 77 public void range(int start, int end, final HgChangelog.Inspector inspector) throws HgRuntimeException { | 
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changeset | 78 if (inspector == null) { | 
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changeset | 79 throw new IllegalArgumentException(); | 
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changeset | 80 } | 
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changeset | 81 content.iterate(start, end, true, new RawCsetParser(getRepo(), inspector)); | 
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changeset | 82 } | 
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changeset | 83 | 
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changeset | 84 /** | 
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changeset | 85 * @see #range(int, int, Inspector) | 
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changeset | 86 * @return changeset entry objects, never <code>null</code> | 
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changeset | 87 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog. <em>Runtime exception</em> | 
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changeset | 88 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em> | 
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changeset | 89 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em> | 
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changeset | 90 */ | 
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changeset | 91 public List<RawChangeset> range(int start, int end) throws HgRuntimeException { | 
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changeset | 92 final RawCsetCollector c = new RawCsetCollector(end - start + 1); | 
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changeset | 93 range(start, end, c); | 
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changeset | 94 return c.result; | 
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changeset | 95 } | 
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changeset | 96 | 
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changeset | 97 /** | 
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changeset | 98 * Access individual revisions. Note, regardless of supplied revision order, inspector gets | 
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changeset | 99 * changesets strictly in the order they are in the changelog. | 
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changeset | 100 * @param inspector callback to get changesets | 
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changeset | 101 * @param revisions revisions to read, unrestricted ordering. | 
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changeset | 102 * @throws HgInvalidRevisionException if any supplied revision doesn't identify revision from this revlog <em>Runtime exception</em> | 
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changeset | 103 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em> | 
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changeset | 104 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em> | 
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changeset | 105 */ | 
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changeset | 106 public void range(final HgChangelog.Inspector inspector, final int... revisions) throws HgRuntimeException { | 
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changeset | 107 Arrays.sort(revisions); | 
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changeset | 108 rangeInternal(inspector, revisions); | 
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changeset | 109 } | 
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changeset | 110 | 
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changeset | 111 /** | 
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changeset | 112 * Friends-only version of {@link #range(Inspector, int...)}, when callers know array is sorted | 
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changeset | 113 */ | 
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changeset | 114 /*package-local*/ void rangeInternal(HgChangelog.Inspector inspector, int[] sortedRevisions) throws HgRuntimeException { | 
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changeset | 115 if (sortedRevisions == null || sortedRevisions.length == 0) { | 
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changeset | 116 return; | 
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changeset | 117 } | 
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changeset | 118 if (inspector == null) { | 
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changeset | 119 throw new IllegalArgumentException(); | 
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changeset | 120 } | 
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changeset | 121 content.iterate(sortedRevisions, true, new RawCsetParser(getRepo(), inspector)); | 
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changeset | 122 } | 
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changeset | 123 | 
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changeset | 124 /** | 
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changeset | 125 * Get changeset entry object | 
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changeset | 126 * @throws HgInvalidRevisionException if supplied nodeid doesn't identify any revision from this revlog. <em>Runtime exception</em> | 
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changeset | 127 * @throws HgInvalidControlFileException if failed to access revlog index/data entry. <em>Runtime exception</em> | 
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changeset | 128 * @throws HgRuntimeException subclass thereof to indicate other issues with the library. <em>Runtime exception</em> | 
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changeset | 129 */ | 
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changeset | 130 public RawChangeset changeset(Nodeid nid) throws HgRuntimeException { | 
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changeset | 131 int x = getRevisionIndex(nid); | 
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changeset | 132 return range(x, x).get(0); | 
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changeset | 133 } | 
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changeset | 134 | 
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changeset | 135 @Callback | 
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changeset | 136 public interface Inspector { | 
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changeset | 137 /** | 
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changeset | 138 * Access next changeset | 
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changeset | 139 * TODO describe what revisionNumber is when Inspector is used with HgBundle (BAD_REVISION or bundle's local order?) | 
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changeset | 140 * | 
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changeset | 141 * @param revisionIndex index of revision being inspected, local to the inspected object | 
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changeset | 142 * @param nodeid revision being inspected | 
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changeset | 143 * @param cset changeset raw data | 
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changeset | 144 */ | 
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changeset | 145 void next(int revisionIndex, Nodeid nodeid, RawChangeset cset) throws HgRuntimeException; | 
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changeset | 146 } | 
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changeset | 147 | 
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changeset | 148 /** | 
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changeset | 149 * Entry in the Changelog | 
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changeset | 150 */ | 
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changeset | 151 public static final class RawChangeset implements Cloneable /* for those that would like to keep a copy */{ | 
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changeset | 152 // would be nice to get it immutable, but then we can't reuse instances | 
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changeset | 153 private/* final */Nodeid manifest; | 
| 153 | 154 private String user; | 
| 155 private String comment; | |
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changeset | 156 private String[] files; // shall not be modified (#clone() does shallow copy) | 
| 153 | 157 private Date time; | 
| 158 private int timezone; | |
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changeset | 159 // http://mercurial.selenic.com/wiki/PruningDeadBranches - Closing changesets can be identified by close=1 in the changeset's extra field. | 
| 153 | 160 private Map<String, String> extras; | 
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changeset | 161 | 
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changeset | 162 private RawChangeset() { | 
| 153 | 163 } | 
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changeset | 164 | 
| 153 | 165 public Nodeid manifest() { | 
| 166 return manifest; | |
| 167 } | |
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changeset | 168 | 
| 153 | 169 public String user() { | 
| 170 return user; | |
| 171 } | |
| 172 | |
| 173 public String comment() { | |
| 174 return comment; | |
| 175 } | |
| 176 | |
| 177 public List<String> files() { | |
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changeset | 178 return Arrays.asList(files); | 
| 153 | 179 } | 
| 180 | |
| 181 public Date date() { | |
| 182 return time; | |
| 183 } | |
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changeset | 184 | 
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changeset | 185 /** | 
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changeset | 186 * @return time zone value, as is, positive for Western Hemisphere. | 
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changeset | 187 */ | 
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changeset | 188 public int timezone() { | 
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changeset | 189 return timezone; | 
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changeset | 190 } | 
| 153 | 191 | 
| 192 public String dateString() { | |
| 193 // XXX keep once formatted? Perhaps, there's faster way to set up calendar/time zone? | |
| 194 StringBuilder sb = new StringBuilder(30); | |
| 195 Formatter f = new Formatter(sb, Locale.US); | |
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changeset | 196 TimeZone tz = TimeZone.getTimeZone(TimeZone.getAvailableIDs(timezone * 1000)[0]); | 
| 153 | 197 // apparently timezone field records number of seconds time differs from UTC, | 
| 198 // i.e. value to substract from time to get UTC time. Calendar seems to add | |
| 199 // timezone offset to UTC, instead, hence sign change. | |
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changeset | 200 // tz.setRawOffset(timezone * -1000); | 
| 153 | 201 Calendar c = Calendar.getInstance(tz, Locale.US); | 
| 202 c.setTime(time); | |
| 203 f.format("%ta %<tb %<td %<tH:%<tM:%<tS %<tY %<tz", c); | |
| 204 return sb.toString(); | |
| 205 } | |
| 206 | |
| 207 public Map<String, String> extras() { | |
| 208 return extras; | |
| 209 } | |
| 210 | |
| 211 public String branch() { | |
| 212 return extras.get("branch"); | |
| 213 } | |
| 214 | |
| 215 @Override | |
| 216 public String toString() { | |
| 217 StringBuilder sb = new StringBuilder(); | |
| 218 sb.append("Changeset {"); | |
| 219 sb.append("User: ").append(user).append(", "); | |
| 220 sb.append("Comment: ").append(comment).append(", "); | |
| 221 sb.append("Manifest: ").append(manifest).append(", "); | |
| 222 sb.append("Date: ").append(time).append(", "); | |
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changeset | 223 sb.append("Files: ").append(files.length); | 
| 153 | 224 for (String s : files) { | 
| 225 sb.append(", ").append(s); | |
| 226 } | |
| 227 if (extras != null) { | |
| 228 sb.append(", Extra: ").append(extras); | |
| 229 } | |
| 230 sb.append("}"); | |
| 231 return sb.toString(); | |
| 232 } | |
| 233 | |
| 234 @Override | |
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changeset | 235 public RawChangeset clone() { | 
| 153 | 236 try { | 
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changeset | 237 return (RawChangeset) super.clone(); | 
| 153 | 238 } catch (CloneNotSupportedException ex) { | 
| 239 throw new InternalError(ex.toString()); | |
| 240 } | |
| 241 } | |
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changeset | 242 } | 
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changeset | 243 | 
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changeset | 244 /** | 
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changeset | 245 * @see mercurial/changelog.py:read() | 
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changeset | 246 * | 
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changeset | 247 * <pre> | 
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changeset | 248 * format used: | 
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changeset | 249 * nodeid\n : manifest node in ascii | 
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changeset | 250 * user\n : user, no \n or \r allowed | 
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changeset | 251 * time tz extra\n : date (time is int or float, timezone is int) | 
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changeset | 252 * : extra is metadatas, encoded and separated by '\0' | 
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changeset | 253 * : older versions ignore it | 
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changeset | 254 * files\n\n : files modified by the cset, no \n or \r allowed | 
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changeset | 255 * (.*) : comment (free text, ideally utf-8) | 
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changeset | 256 * | 
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changeset | 257 * changelog v0 doesn't use extra | 
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changeset | 258 * </pre> | 
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changeset | 259 */ | 
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changeset | 260 /*package-local*/static final class ChangesetParser { | 
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changeset | 261 private final EncodingHelper encHelper; | 
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changeset | 262 // it's likely user names get repeated again and again throughout repository. | 
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changeset | 263 private final Pool<String> usersPool; | 
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changeset | 264 private final Pool<String> filesPool; | 
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changeset | 265 private final boolean reuseChangesetInstance; | 
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changeset | 266 private RawChangeset target; | 
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changeset | 267 | 
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changeset | 268 public ChangesetParser(SessionContext.Source sessionContex, boolean shallReuseCsetInstance) { | 
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changeset | 269 encHelper = Internals.buildFileNameEncodingHelper(sessionContex); | 
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changeset | 270 usersPool = new Pool<String>(); | 
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changeset | 271 filesPool = new Pool<String>(); | 
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changeset | 272 reuseChangesetInstance = shallReuseCsetInstance; | 
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changeset | 273 if (shallReuseCsetInstance) { | 
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changeset | 274 target = new RawChangeset(); | 
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changeset | 275 } | 
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changeset | 276 } | 
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changeset | 277 | 
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changeset | 278 public void dispose() { | 
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changeset | 279 usersPool.clear(); | 
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changeset | 280 filesPool.clear(); | 
| 153 | 281 } | 
| 282 | |
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changeset | 283 public RawChangeset parse(DataAccess da) throws IOException, HgInvalidDataFormatException { | 
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changeset | 284 byte[] data = da.byteArray(); | 
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changeset | 285 if (!reuseChangesetInstance) { | 
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changeset | 286 target = new RawChangeset(); | 
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changeset | 287 } | 
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changeset | 288 init(data, 0, data.length); | 
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changeset | 289 return target; | 
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changeset | 290 } | 
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changeset | 291 | 
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changeset | 292 private void init(byte[] data, int offset, int length) throws HgInvalidDataFormatException { | 
| 153 | 293 final int bufferEndIndex = offset + length; | 
| 294 final byte lineBreak = (byte) '\n'; | |
| 295 int breakIndex1 = indexOf(data, lineBreak, offset, bufferEndIndex); | |
| 296 if (breakIndex1 == -1) { | |
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changeset | 297 throw new HgInvalidDataFormatException("Bad Changeset data"); | 
| 153 | 298 } | 
| 299 Nodeid _nodeid = Nodeid.fromAscii(data, 0, breakIndex1); | |
| 300 int breakIndex2 = indexOf(data, lineBreak, breakIndex1 + 1, bufferEndIndex); | |
| 301 if (breakIndex2 == -1) { | |
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changeset | 302 throw new HgInvalidDataFormatException("Bad Changeset data"); | 
| 153 | 303 } | 
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changeset | 304 String _user; | 
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changeset | 305 _user = encHelper.userFromChangeset(data, breakIndex1 + 1, breakIndex2 - breakIndex1 - 1); | 
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changeset | 306 _user = usersPool.unify(_user); | 
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changeset | 307 | 
| 153 | 308 int breakIndex3 = indexOf(data, lineBreak, breakIndex2 + 1, bufferEndIndex); | 
| 309 if (breakIndex3 == -1) { | |
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changeset | 310 throw new HgInvalidDataFormatException("Bad Changeset data"); | 
| 153 | 311 } | 
| 312 String _timeString = new String(data, breakIndex2 + 1, breakIndex3 - breakIndex2 - 1); | |
| 313 int space1 = _timeString.indexOf(' '); | |
| 314 if (space1 == -1) { | |
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changeset | 315 throw new HgInvalidDataFormatException(String.format("Bad Changeset data: %s in [%d..%d]", "time string", breakIndex2+1, breakIndex3)); | 
| 153 | 316 } | 
| 317 int space2 = _timeString.indexOf(' ', space1 + 1); | |
| 318 if (space2 == -1) { | |
| 319 space2 = _timeString.length(); | |
| 320 } | |
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changeset | 321 long unixTime = Long.parseLong(_timeString.substring(0, space1)); | 
| 153 | 322 int _timezone = Integer.parseInt(_timeString.substring(space1 + 1, space2)); | 
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changeset | 323 // unixTime is local time, and timezone records difference of the local time to UTC. | 
| 153 | 324 Date _time = new Date(unixTime * 1000); | 
| 325 String _extras = space2 < _timeString.length() ? _timeString.substring(space2 + 1) : null; | |
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changeset | 326 Map<String, String> _extrasMap = parseExtras(_extras); | 
| 153 | 327 // | 
| 328 int lastStart = breakIndex3 + 1; | |
| 329 int breakIndex4 = indexOf(data, lineBreak, lastStart, bufferEndIndex); | |
| 330 ArrayList<String> _files = null; | |
| 331 if (breakIndex4 > lastStart) { | |
| 332 // if breakIndex4 == lastStart, we already found \n\n and hence there are no files (e.g. merge revision) | |
| 333 _files = new ArrayList<String>(5); | |
| 334 while (breakIndex4 != -1 && breakIndex4 + 1 < bufferEndIndex) { | |
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changeset | 335 String fname = encHelper.fileFromChangeset(data, lastStart, breakIndex4 - lastStart); | 
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changeset | 336 _files.add(filesPool.unify(fname)); | 
| 153 | 337 lastStart = breakIndex4 + 1; | 
| 338 if (data[breakIndex4 + 1] == lineBreak) { | |
| 339 // found \n\n | |
| 340 break; | |
| 341 } else { | |
| 342 breakIndex4 = indexOf(data, lineBreak, lastStart, bufferEndIndex); | |
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changeset | 343 } | 
| 153 | 344 } | 
| 345 if (breakIndex4 == -1 || breakIndex4 >= bufferEndIndex) { | |
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changeset | 346 throw new HgInvalidDataFormatException("Bad Changeset data"); | 
| 153 | 347 } | 
| 348 } else { | |
| 349 breakIndex4--; | |
| 350 } | |
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changeset | 351 String _comment = encHelper.commentFromChangeset(data, breakIndex4 + 2, bufferEndIndex - breakIndex4 - 2); | 
| 153 | 352 // change this instance at once, don't leave it partially changes in case of error | 
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changeset | 353 target.manifest = _nodeid; | 
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changeset | 354 target.user = _user; | 
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changeset | 355 target.time = _time; | 
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changeset | 356 target.timezone = _timezone; | 
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changeset | 357 target.files = _files == null ? new String[0] : _files.toArray(new String[_files.size()]); | 
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changeset | 358 target.comment = _comment; | 
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changeset | 359 target.extras = _extrasMap; | 
| 153 | 360 } | 
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changeset | 361 | 
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changeset | 362 private Map<String, String> parseExtras(String _extras) { | 
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changeset | 363 final String extras_branch_key = "branch"; | 
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changeset | 364 _extras = _extras == null ? null : _extras.trim(); | 
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changeset | 365 if (_extras == null || _extras.length() == 0) { | 
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changeset | 366 return Collections.singletonMap(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME); | 
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changeset | 367 } | 
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changeset | 368 Map<String, String> _extrasMap = new HashMap<String, String>(); | 
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changeset | 369 int lastIndex = 0; | 
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changeset | 370 do { | 
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changeset | 371 String pair; | 
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changeset | 372 int sp = _extras.indexOf('\0', lastIndex); | 
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changeset | 373 if (sp == -1) { | 
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changeset | 374 sp = _extras.length(); | 
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changeset | 375 } | 
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changeset | 376 if (sp > lastIndex) { | 
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changeset | 377 pair = _extras.substring(lastIndex, sp); | 
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changeset | 378 pair = decode(pair); | 
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changeset | 379 int eq = pair.indexOf(':'); | 
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changeset | 380 _extrasMap.put(pair.substring(0, eq), pair.substring(eq + 1)); | 
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changeset | 381 lastIndex = sp + 1; | 
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changeset | 382 } | 
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changeset | 383 } while (lastIndex < _extras.length()); | 
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changeset | 384 if (!_extrasMap.containsKey(extras_branch_key)) { | 
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changeset | 385 _extrasMap.put(extras_branch_key, HgRepository.DEFAULT_BRANCH_NAME); | 
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changeset | 386 } | 
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changeset | 387 return Collections.unmodifiableMap(_extrasMap); | 
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changeset | 388 } | 
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changeset | 389 | 
| 153 | 390 private static int indexOf(byte[] src, byte what, int startOffset, int endIndex) { | 
| 391 for (int i = startOffset; i < endIndex; i++) { | |
| 392 if (src[i] == what) { | |
| 393 return i; | |
| 394 } | |
| 395 } | |
| 396 return -1; | |
| 397 } | |
| 363 
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changeset | 398 | 
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changeset | 399 private static String decode(String s) { | 
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changeset | 400 if (s != null && s.indexOf('\\') != -1) { | 
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changeset | 401 // TestAuxUtilities#testChangelogExtrasDecode | 
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changeset | 402 return s.replace("\\\\", "\\").replace("\\n", "\n").replace("\\r", "\r").replace("\\0", "\00"); | 
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changeset | 403 } | 
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changeset | 404 return s; | 
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changeset | 405 } | 
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changeset | 406 } | 
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changeset | 407 | 
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changeset | 408 private static class RawCsetCollector implements Inspector { | 
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changeset | 409 final ArrayList<RawChangeset> result; | 
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changeset | 410 | 
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changeset | 411 public RawCsetCollector(int count) { | 
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changeset | 412 result = new ArrayList<RawChangeset>(count > 0 ? count : 5); | 
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changeset | 413 } | 
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changeset | 414 | 
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changeset | 415 public void next(int revisionNumber, Nodeid nodeid, RawChangeset cset) { | 
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changeset | 416 result.add(cset.clone()); | 
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changeset | 417 } | 
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changeset | 418 } | 
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changeset | 419 | 
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changeset | 420 private static final class RawCsetParser implements RevlogStream.Inspector, Adaptable, Lifecycle { | 
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changeset | 421 | 
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changeset | 422 private final Inspector inspector; | 
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changeset | 423 private final ChangesetParser csetBuilder; | 
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changeset | 424 // non-null when inspector uses high-level lifecycle entities (progress and/or cancel supports) | 
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changeset | 425 private final LifecycleBridge lifecycleStub; | 
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changeset | 426 // non-null when inspector relies on low-level lifecycle and is responsible | 
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changeset | 427 // to proceed any possible high-level entities himself. | 
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changeset | 428 private final Lifecycle inspectorLifecycle; | 
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changeset | 429 | 
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changeset | 430 public RawCsetParser(SessionContext.Source sessionContext, HgChangelog.Inspector delegate) { | 
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changeset | 431 assert delegate != null; | 
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changeset | 432 inspector = delegate; | 
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changeset | 433 csetBuilder = new ChangesetParser(sessionContext, true); | 
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changeset | 434 inspectorLifecycle = Adaptable.Factory.getAdapter(delegate, Lifecycle.class, null); | 
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changeset | 435 if (inspectorLifecycle == null) { | 
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changeset | 436 ProgressSupport ph = Adaptable.Factory.getAdapter(delegate, ProgressSupport.class, null); | 
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changeset | 437 CancelSupport cs = Adaptable.Factory.getAdapter(delegate, CancelSupport.class, null); | 
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changeset | 438 if (cs != null || ph != null) { | 
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changeset | 439 lifecycleStub = new LifecycleBridge(ph, cs); | 
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changeset | 440 } else { | 
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changeset | 441 lifecycleStub = null; | 
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changeset | 442 } | 
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changeset | 443 } else { | 
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changeset | 444 lifecycleStub = null; | 
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changeset | 445 } | 
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changeset | 446 } | 
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changeset | 447 | 
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changeset | 448 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) throws HgRuntimeException { | 
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changeset | 449 try { | 
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changeset | 450 RawChangeset cset = csetBuilder.parse(da); | 
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changeset | 451 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse | 
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changeset | 452 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset); | 
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changeset | 453 if (lifecycleStub != null) { | 
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changeset | 454 lifecycleStub.nextStep(); | 
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changeset | 455 } | 
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changeset | 456 } catch (HgInvalidDataFormatException ex) { | 
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changeset | 457 throw ex.setRevisionIndex(revisionNumber); | 
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changeset | 458 } catch (IOException ex) { | 
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changeset | 459 // XXX need better exception, perhaps smth like HgChangelogException (extends HgInvalidControlFileException) | 
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changeset | 460 throw new HgInvalidControlFileException("Failed reading changelog", ex, null).setRevisionIndex(revisionNumber); | 
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changeset | 461 } | 
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changeset | 462 } | 
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changeset | 463 | 
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changeset | 464 public <T> T getAdapter(Class<T> adapterClass) { | 
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changeset | 465 if (adapterClass == Lifecycle.class) { | 
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changeset | 466 return adapterClass.cast(this); | 
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changeset | 467 } | 
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changeset | 468 // XXX what if caller takes Progress/Cancel (which we update through lifecycleStub, too) | 
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changeset | 469 return Adaptable.Factory.getAdapter(inspector, adapterClass, null); | 
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changeset | 470 } | 
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changeset | 471 | 
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changeset | 472 public void start(int count, Callback callback, Object token) { | 
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changeset | 473 if (inspectorLifecycle != null) { | 
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changeset | 474 inspectorLifecycle.start(count, callback, token); | 
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changeset | 475 } else if (lifecycleStub != null) { | 
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changeset | 476 lifecycleStub.start(count, callback, token); | 
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changeset | 477 } | 
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changeset | 478 } | 
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changeset | 479 | 
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changeset | 480 public void finish(Object token) { | 
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changeset | 481 if (inspectorLifecycle != null) { | 
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changeset | 482 inspectorLifecycle.finish(token); | 
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changeset | 483 } else if (lifecycleStub != null) { | 
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changeset | 484 lifecycleStub.finish(token); | 
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changeset | 485 } | 
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changeset | 486 csetBuilder.dispose(); | 
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changeset | 487 } | 
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changeset | 488 | 
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changeset | 489 } | 
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changeset | 490 } | 
