Mercurial > jhg

annotate src/com/tmate/hgkit/ll/Changelog.java @ 51:9429c7bd1920 wrap-data-access

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Try DataAccess to reach revision data instead of plain byte arrays
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Sun, 16 Jan 2011 01:20:26 +0100
parents e34f90b9ded1
children
rev   line source
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1 /*
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2 * Copyright (c) 2010, 2011 Artem Tikhomirov
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3 */
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4 package com.tmate.hgkit.ll;
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5
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6 import java.util.ArrayList;
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7 import java.util.Arrays;
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8 import java.util.List;
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10 import com.tmate.hgkit.fs.DataAccess;
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11
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12 /**
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13 * Representation of the Mercurial changelog file (list of ChangeSets)
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14 * @author artem
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15 */
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16 public class Changelog extends Revlog {
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18 /*package-local*/ Changelog(HgRepository hgRepo, RevlogStream content) {
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19 super(hgRepo, content);
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20 }
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22 public void all(final Changeset.Inspector inspector) {
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23 range(0, content.revisionCount() - 1, inspector);
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24 }
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25
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26 public void range(int start, int end, final Changeset.Inspector inspector) {
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27 Revlog.Inspector i = new Revlog.Inspector() {
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29 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
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30 byte[] data = da.byteArray();
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31 Changeset cset = Changeset.parse(data, 0, data.length);
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32 // XXX there's no guarantee for Changeset.Callback that distinct instance comes each time, consider instance reuse
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33 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
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34 }
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35 };
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36 content.iterate(start, end, true, i);
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37 }
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38
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39 public List<Changeset> range(int start, int end) {
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40 final ArrayList<Changeset> rv = new ArrayList<Changeset>(end - start + 1);
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41 Revlog.Inspector i = new Revlog.Inspector() {
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43 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
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44 byte[] data = da.byteArray();
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45 Changeset cset = Changeset.parse(data, 0, data.length);
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46 rv.add(cset);
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47 }
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48 };
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49 content.iterate(start, end, true, i);
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50 return rv;
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51 }
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53 public void range(final Changeset.Inspector inspector, final int... revisions) {
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54 if (revisions == null || revisions.length == 0) {
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55 return;
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56 }
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57 Revlog.Inspector i = new Revlog.Inspector() {
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59 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
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60 if (Arrays.binarySearch(revisions, revisionNumber) >= 0) {
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61 byte[] data = da.byteArray();
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62 Changeset cset = Changeset.parse(data, 0, data.length);
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63 inspector.next(revisionNumber, Nodeid.fromBinary(nodeid, 0), cset);
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64 }
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65 }
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66 };
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67 Arrays.sort(revisions);
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68 content.iterate(revisions[0], revisions[revisions.length - 1], true, i);
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69 }
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70 }