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annotate src/org/tmatesoft/hg/repo/Changelog.java @ 84:08754fce5778

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updated design questions
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 25 Jan 2011 22:53:28 +0100
parents c677e1593919
children
rev   line source
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1 /*
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2 * Copyright (c) 2010-2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@svnkit.com
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16 */
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17 package org.tmatesoft.hg.repo;
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19 import java.util.ArrayList;
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20 import java.util.Arrays;
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21 import java.util.List;
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23 import org.tmatesoft.hg.core.Nodeid;
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24 import org.tmatesoft.hg.internal.RevlogStream;
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27 /**
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28 * Representation of the Mercurial changelog file (list of ChangeSets)
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29 *
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30 * @author Artem Tikhomirov
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31 * @author TMate Software Ltd.
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32 */
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33 public class Changelog extends Revlog {
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35 /*package-local*/ Changelog(HgRepository hgRepo, RevlogStream content) {
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36 super(hgRepo, content);
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37 }
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39 public void all(final Changeset.Inspector inspector) {
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40 range(0, content.revisionCount() - 1, inspector);
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41 }
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42
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43 public void range(int start, int end, final Changeset.Inspector inspector) {
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44 RevlogStream.Inspector i = new RevlogStream.Inspector() {
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45
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46 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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47 Changeset cset = Changeset.parse(data, 0, data.length);
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48 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
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49 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
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50 }
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51 };
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52 content.iterate(start, end, true, i);
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53 }
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54
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55 public List<Changeset> range(int start, int end) {
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56 final ArrayList<Changeset> rv = new ArrayList<Changeset>(end - start + 1);
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57 RevlogStream.Inspector i = new RevlogStream.Inspector() {
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59 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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60 Changeset cset = Changeset.parse(data, 0, data.length);
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61 rv.add(cset);
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62 }
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63 };
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64 content.iterate(start, end, true, i);
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65 return rv;
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66 }
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68 public void range(final Changeset.Inspector inspector, final int... revisions) {
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69 if (revisions == null || revisions.length == 0) {
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70 return;
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71 }
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72 RevlogStream.Inspector i = new RevlogStream.Inspector() {
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74 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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75 if (Arrays.binarySearch(revisions, revisionNumber) >= 0) {
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76 Changeset cset = Changeset.parse(data, 0, data.length);
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77 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
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78 }
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79 }
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80 };
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81 Arrays.sort(revisions);
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82 content.iterate(revisions[0], revisions[revisions.length - 1], true, i);
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83 }
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84 }