Mercurial > hg4j

annotate src/org/tmatesoft/hg/core/HgAnnotateCommand.java @ 709:497e697636fc

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Report merged lines as changed block if possible, not as a sequence of added/deleted blocks. To facilitate access to merge parent lines AddBlock got mergeLineAt() method that reports index of the line in the second parent (if any), while insertedAt() has been changed to report index in the first parent always
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 21 Aug 2013 16:23:27 +0200
parents 7839ff0bfd78
children
rev   line source
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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.core;
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18
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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.internal.Callback;
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22 import org.tmatesoft.hg.internal.CsetParamKeeper;
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23 import org.tmatesoft.hg.internal.diff.ForwardAnnotateInspector;
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24 import org.tmatesoft.hg.repo.HgDataFile;
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25 import org.tmatesoft.hg.repo.HgRepository;
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26 import org.tmatesoft.hg.repo.HgRuntimeException;
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27 import org.tmatesoft.hg.util.CancelSupport;
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28 import org.tmatesoft.hg.util.CancelledException;
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29 import org.tmatesoft.hg.util.Path;
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30 import org.tmatesoft.hg.util.ProgressSupport;
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31
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32 /**
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33 * 'hg annotate' counterpart, report origin revision and file line-by-line
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34 *
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35 * @since 1.1
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36 * @author Artem Tikhomirov
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37 * @author TMate Software Ltd.
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38 */
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39 public class HgAnnotateCommand extends HgAbstractCommand<HgAnnotateCommand> {
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40
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41 private final HgRepository repo;
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42 private final CsetParamKeeper annotateRevision;
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43 private Path file;
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44 private boolean followRename;
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45
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46 public HgAnnotateCommand(HgRepository hgRepo) {
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47 repo = hgRepo;
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48 annotateRevision = new CsetParamKeeper(repo);
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49 annotateRevision.doSet(TIP);
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50 }
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51
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52 public HgAnnotateCommand changeset(Nodeid nodeid) throws HgBadArgumentException {
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53 annotateRevision.set(nodeid);
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54 return this;
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55 }
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56
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57 public HgAnnotateCommand changeset(int changelogRevIndex) throws HgBadArgumentException {
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58 annotateRevision.set(changelogRevIndex);
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59 return this;
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60 }
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61
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62 /**
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63 * Select file to annotate, origin of renamed/copied file would be followed, too.
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64 *
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65 * @param filePath path relative to repository root
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66 * @return <code>this</code> for convenience
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67 */
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68 public HgAnnotateCommand file(Path filePath) {
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69 return file(filePath, true);
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70 }
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71
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72 /**
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73 * Select file to annotate.
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74 *
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75 * @param filePath path relative to repository root
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76 * @param followCopyRename true to follow copies/renames.
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77 * @return <code>this</code> for convenience
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78 */
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79 public HgAnnotateCommand file(Path filePath, boolean followCopyRename) {
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80 file = filePath;
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81 followRename = followCopyRename;
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82 return this;
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83 }
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84
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85
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86 /**
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87 * Select file to annotate,
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88 * @param fileNode repository file to annotate
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89 * @param followCopyRename true to follow copies/renames.
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90 * @return <code>this</code> for convenience
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91 */
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92 public HgAnnotateCommand file(HgDataFile fileNode, boolean followCopyRename) {
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93 return file(fileNode.getPath(), followCopyRename);
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94 }
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95
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96 // TODO [post-1.1] set encoding and provide String line content from LineInfo
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97 // TODO FWIW: diff algorithms: http://bramcohen.livejournal.com/73318.html
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98
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99 /**
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100 * Annotate selected file
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101 *
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102 * @param inspector
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103 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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104 * @throws HgCallbackTargetException
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105 * @throws CancelledException if execution of the command was cancelled
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106 */
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107 public void execute(Inspector inspector) throws HgException, HgCallbackTargetException, CancelledException {
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108 if (inspector == null) {
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109 throw new IllegalArgumentException();
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110 }
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111 if (file == null) {
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112 throw new HgBadArgumentException("Command needs file argument", null);
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113 }
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114 final ProgressSupport progress = getProgressSupport(inspector);
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115 final CancelSupport cancellation = getCancelSupport(inspector, true);
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116 cancellation.checkCancelled();
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117 progress.start(200);
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118 try {
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119 HgDataFile df = repo.getFileNode(file);
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120 if (!df.exists()) {
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121 return;
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122 }
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123 final int changesetStart = followRename ? 0 : df.getChangesetRevisionIndex(0);
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124 final int annotateRevIndex = annotateRevision.get(TIP);
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125 HgDiffCommand cmd = new HgDiffCommand(repo).file(df);
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126 cmd.range(changesetStart, annotateRevIndex);
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127 cmd.set(cancellation);
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128 cmd.set(new ProgressSupport.Sub(progress, 100));
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129 //
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130 // ReverseAnnotateInspector ai = new ReverseAnnotateInspector();
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131 ForwardAnnotateInspector ai = new ForwardAnnotateInspector();
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132 cmd.order(ai.iterateDirection());
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133 //
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134 cmd.executeAnnotate(ai);
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135 cancellation.checkCancelled();
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136 final int lastCsetWithFileChange;
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137 Nodeid fileRev = repo.getManifest().getFileRevision(annotateRevIndex, df.getPath());
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138 if (fileRev != null) {
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139 lastCsetWithFileChange = df.getChangesetRevisionIndex(df.getRevisionIndex(fileRev));
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140 } else {
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141 lastCsetWithFileChange = annotateRevIndex;
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142 }
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143 ai.report(lastCsetWithFileChange, inspector, new ProgressSupport.Sub(progress, 100), cancellation);
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144 } catch (HgRuntimeException ex) {
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145 throw new HgLibraryFailureException(ex);
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146 }
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147 progress.done();
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148 }
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149
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150 /**
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151 * Callback to receive annotated lines
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152 */
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153 @Callback
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154 public interface Inspector {
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155 // start(FileDescriptor) throws HgCallbackTargetException;
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156 void next(LineInfo lineInfo) throws HgCallbackTargetException;
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157 // end(FileDescriptor) throws HgCallbackTargetException;
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158 }
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159
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160 /**
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161 * Describes a line reported through {@link Inspector#next(LineInfo)}
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162 *
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163 * Clients shall not implement this interface
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164 */
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165 public interface LineInfo {
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166 /**
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167 * @return 1-based index of the line in the annotated revision
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168 */
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169 int getLineNumber();
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170
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171 /**
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172 * @return 1-based line number at the first appearance, at changeset {@link #getChangesetIndex()}
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173 */
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174 int getOriginLineNumber();
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175 /**
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176 * @return changeset revision this line was introduced at
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177 */
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178 int getChangesetIndex();
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179
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180 /**
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181 * @return line content
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182 */
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183 byte[] getContent();
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184 }
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185 }