Mercurial > jhg
annotate src/org/tmatesoft/hg/internal/CsetParamKeeper.java @ 582:90df078d6418
Delegate cancel to original support, do not implement CancelSupport ourselves
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Mon, 22 Apr 2013 19:17:29 +0200 |
parents | 78a9e26e670d |
children | 6526d8adbc0f |
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1 /* |
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2 * Copyright (c) 2013 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@hg4j.com |
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16 */ |
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17 package org.tmatesoft.hg.internal; |
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18 |
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19 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION; |
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20 import static org.tmatesoft.hg.repo.HgRepository.TIP; |
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21 |
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22 import org.tmatesoft.hg.core.HgBadArgumentException; |
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23 import org.tmatesoft.hg.core.Nodeid; |
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24 import org.tmatesoft.hg.repo.HgInvalidRevisionException; |
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25 import org.tmatesoft.hg.repo.HgRepository; |
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26 |
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27 /** |
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28 * Common code to keep changelog revision and to perform boundary check. |
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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 CsetParamKeeper { |
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34 private final HgRepository repo; |
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35 private int changelogRevisionIndex = HgRepository.BAD_REVISION; |
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36 |
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37 public CsetParamKeeper(HgRepository hgRepo) { |
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38 repo = hgRepo; |
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39 } |
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40 |
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41 public CsetParamKeeper set(Nodeid changeset) throws HgBadArgumentException { |
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42 try { |
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43 set(repo.getChangelog().getRevisionIndex(changeset)); |
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44 } catch (HgInvalidRevisionException ex) { |
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45 throw new HgBadArgumentException("Can't find revision", ex).setRevision(changeset); |
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46 } |
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47 return this; |
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48 } |
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49 |
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50 public CsetParamKeeper set(int changelogRevIndex) throws HgBadArgumentException { |
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51 int lastCsetIndex = repo.getChangelog().getLastRevision(); |
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52 if (changelogRevIndex == HgRepository.TIP) { |
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53 changelogRevIndex = lastCsetIndex; |
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54 } |
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55 if (changelogRevIndex < 0 || changelogRevIndex > lastCsetIndex) { |
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56 throw new HgBadArgumentException(String.format("Bad revision index %d, value from [0..%d] expected", changelogRevIndex, lastCsetIndex), null).setRevisionIndex(changelogRevIndex); |
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57 } |
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58 doSet(changelogRevIndex); |
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59 return this; |
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60 } |
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61 |
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62 public void doSet(int changelogRevIndex) { |
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63 changelogRevisionIndex = changelogRevIndex; |
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64 } |
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65 |
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66 /** |
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67 * @return the value set, or {@link HgRepository#BAD_REVISION} otherwise |
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68 */ |
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69 public int get() { |
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70 return changelogRevisionIndex; |
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71 } |
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72 |
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73 /** |
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74 * @param defaultRevisionIndex value to return when no revision was set, may be {@link HgRepository#TIP} which gets translated to real index if used |
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75 * @return changelog revision index if set, or defaultRevisionIndex value otherwise |
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76 */ |
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77 public int get(int defaultRevisionIndex) { |
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78 // XXX perhaps, shall translate other predefined constants (like WORKING COPY) here, too (e.g. for HgRevertCommand) |
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79 if (changelogRevisionIndex != BAD_REVISION || changelogRevisionIndex != TIP) { |
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80 return changelogRevisionIndex; |
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81 } |
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82 if (changelogRevisionIndex == TIP || defaultRevisionIndex == TIP) { |
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83 return repo.getChangelog().getLastRevision(); |
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84 } |
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85 return defaultRevisionIndex; |
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86 } |
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87 } |