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annotate src/org/tmatesoft/hg/repo/HgDataFile.java @ 77:c677e1593919

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Moved RevlogStream implementation into .internal
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Mon, 24 Jan 2011 05:33:47 +0100
parents 6f1b88693d48
children c25c5c348d1b
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 static org.tmatesoft.hg.repo.HgRepository.TIP;
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20
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21 import org.tmatesoft.hg.core.Nodeid;
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22 import org.tmatesoft.hg.core.Path;
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23 import org.tmatesoft.hg.internal.RevlogStream;
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27 /**
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28 * ? name:HgFileNode?
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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 HgDataFile extends Revlog {
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35 // absolute from repo root?
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36 // slashes, unix-style?
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37 // repo location agnostic, just to give info to user, not to access real storage
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38 private final Path path;
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40 /*package-local*/HgDataFile(HgRepository hgRepo, Path path, RevlogStream content) {
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41 super(hgRepo, content);
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42 this.path = path;
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43 }
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44
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45 public boolean exists() {
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46 return content != null; // XXX need better impl
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47 }
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49 // human-readable (i.e. "COPYING", not "store/data/_c_o_p_y_i_n_g.i")
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50 public Path getPath() {
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51 return path; // hgRepo.backresolve(this) -> name?
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52 }
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53
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54 public int length(Nodeid nodeid) {
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55 return content.dataLength(getLocalRevisionNumber(nodeid));
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56 }
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57
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58 public byte[] content() {
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59 return content(TIP);
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60 }
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61
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62 public void history(Changeset.Inspector inspector) {
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63 history(0, content.revisionCount() - 1, inspector);
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64 }
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65
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66 public void history(int start, int end, Changeset.Inspector inspector) {
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67 if (!exists()) {
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68 throw new IllegalStateException("Can't get history of invalid repository file node");
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69 }
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70 final int last = content.revisionCount() - 1;
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71 if (start < 0 || start > last) {
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72 throw new IllegalArgumentException();
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73 }
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74 if (end == TIP) {
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75 end = last;
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76 } else if (end < start || end > last) {
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77 throw new IllegalArgumentException();
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78 }
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79 final int[] commitRevisions = new int[end - start + 1];
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80 RevlogStream.Inspector insp = new RevlogStream.Inspector() {
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81 int count = 0;
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83 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
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84 commitRevisions[count++] = linkRevision;
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85 }
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86 };
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87 content.iterate(start, end, false, insp);
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88 getRepo().getChangelog().range(inspector, commitRevisions);
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89 }
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90 }