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annotate src/org/tmatesoft/hg/core/HgException.java @ 338:3cfa4d908fc9

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Add options to control DataAccessProvider, allow to turn off use of file memory mapping in particular to solve potential sharing violation (os file handle gets released on MappedByteByffer being GC'd, not on FileChannel.close())
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 15 Nov 2011 04:47:03 +0100
parents 678e326fd27c
children 2fadf8695f8a
rev   line source
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1 /*
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2 * Copyright (c) 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@hg4j.com
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16 */
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17 package org.tmatesoft.hg.core;
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18
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19 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION;
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20
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21 import org.tmatesoft.hg.repo.HgRepository;
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22 import org.tmatesoft.hg.util.Path;
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23
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24 /**
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25 * Root class for all hg4j exceptions.
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26 *
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27 * @author Artem Tikhomirov
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28 * @author TMate Software Ltd.
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29 */
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30 @SuppressWarnings("serial")
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31 public class HgException extends Exception {
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32
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33 protected int revNumber = BAD_REVISION;
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34 protected Nodeid revision;
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35 protected Path filename;
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36
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37 public HgException(String reason) {
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38 super(reason);
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39 }
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40
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41 public HgException(String reason, Throwable cause) {
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42 super(reason, cause);
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43 }
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44
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45 public HgException(Throwable cause) {
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46 super(cause);
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47 }
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48
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49 /**
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50 * @return not {@link HgRepository#BAD_REVISION} only when local revision number was supplied at the construction time
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51 */
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52 public int getRevisionNumber() {
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53 return revNumber;
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54 }
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55
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56 public HgException setRevisionNumber(int rev) {
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57 revNumber = rev;
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58 return this;
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59 }
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60
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61 /**
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62 * @return non-null only when revision was supplied at construction time
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63 */
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64 public Nodeid getRevision() {
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65 return revision;
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66 }
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67
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68 public HgException setRevision(Nodeid r) {
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69 revision = r;
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70 return this;
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71 }
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72
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73 /**
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74 * @return non-null only if file name was set at construction time
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75 */
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76 public Path getFileName() {
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77 return filename;
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78 }
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79
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80 public HgException setFileName(Path name) {
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81 filename = name;
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82 return this;
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83 }
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84
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85 protected void appendDetails(StringBuilder sb) {
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86 if (filename != null) {
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87 sb.append("file:'");
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88 sb.append(filename);
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89 sb.append('\'');
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90 sb.append(';');
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91 sb.append(' ');
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92 }
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93 sb.append("rev:");
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94 if (revNumber != BAD_REVISION) {
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95 sb.append(revNumber);
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96 if (revision != null) {
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97 sb.append(':');
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98 }
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99 }
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100 if (revision != null) {
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101 sb.append(revision.shortNotation());
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102 }
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103 }
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104
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105 @Override
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106 public String toString() {
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107 StringBuilder sb = new StringBuilder(super.toString());
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108 sb.append(' ');
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109 sb.append('(');
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110 appendDetails(sb);
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111 sb.append(')');
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112 return sb.toString();
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113 }
148
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114 // /* XXX CONSIDER capability to pass extra information about errors */
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115 // public static class Status {
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116 // public Status(String message, Throwable cause, int errorCode, Object extraData) {
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117 // }
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118 // }
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119 }