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annotate src/org/tmatesoft/hg/core/HgOutgoingCommand.java @ 655:bcbcc318f250

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Performance: reuse unzip output buffer
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 04 Jul 2013 18:36:38 +0200
parents 629a7370554c
children
rev   line source
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1 /*
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2 * Copyright (c) 2011-2013 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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19 import java.util.List;
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20 import java.util.Set;
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21 import java.util.TreeSet;
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22
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23 import org.tmatesoft.hg.internal.Internals;
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24 import org.tmatesoft.hg.internal.PhasesHelper;
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25 import org.tmatesoft.hg.internal.RepositoryComparator;
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26 import org.tmatesoft.hg.internal.RevisionSet;
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27 import org.tmatesoft.hg.repo.HgChangelog;
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28 import org.tmatesoft.hg.repo.HgParentChildMap;
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29 import org.tmatesoft.hg.repo.HgRemoteRepository;
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30 import org.tmatesoft.hg.repo.HgRepository;
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31 import org.tmatesoft.hg.repo.HgRuntimeException;
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32 import org.tmatesoft.hg.util.CancelSupport;
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33 import org.tmatesoft.hg.util.CancelledException;
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34 import org.tmatesoft.hg.util.ProgressSupport;
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36 /**
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37 * Command to find out changes made in a local repository and missing at remote repository.
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38 *
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39 * @author Artem Tikhomirov
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40 * @author TMate Software Ltd.
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41 */
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42 public class HgOutgoingCommand extends HgAbstractCommand<HgOutgoingCommand> {
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43
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44 private final HgRepository localRepo;
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45 private HgRemoteRepository remoteRepo;
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46 @SuppressWarnings("unused")
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47 private boolean includeSubrepo;
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48 private RepositoryComparator comparator;
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49 private HgParentChildMap<HgChangelog> parentHelper;
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50 private Set<String> branches;
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52 public HgOutgoingCommand(HgRepository hgRepo) {
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53 localRepo = hgRepo;
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54 }
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56 /**
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57 * @param hgRemote remoteRepository to compare against
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58 * @return <code>this</code> for convenience
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59 */
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60 public HgOutgoingCommand against(HgRemoteRepository hgRemote) {
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61 remoteRepo = hgRemote;
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62 comparator = null;
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63 return this;
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64 }
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65
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66 /**
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67 * Select specific branch to pull.
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68 * Multiple branch specification possible (changeset from any of these would be included in result).
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69 * Note, {@link #executeLite()} does not respect this setting.
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70 *
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71 * @param branch - branch name, case-sensitive, non-null.
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72 * @return <code>this</code> for convenience
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73 * @throws IllegalArgumentException when branch argument is null
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74 */
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75 public HgOutgoingCommand branch(String branch) {
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76 if (branch == null) {
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77 throw new IllegalArgumentException();
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78 }
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79 if (branches == null) {
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80 branches = new TreeSet<String>();
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81 }
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82 branches.add(branch);
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83 return this;
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84 }
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86 /**
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87 * PLACEHOLDER, NOT IMPLEMENTED YET.
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88 *
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89 * @return <code>this</code> for convenience
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90 */
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91 public HgOutgoingCommand subrepo(boolean include) {
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92 includeSubrepo = include;
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93 throw Internals.notImplemented();
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94 }
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95
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96 /**
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97 * Lightweight check for outgoing changes.
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98 * Reported changes are from any branch (limits set by {@link #branch(String)} are not taken into account.
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99 *
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100 * @return list on local nodes known to be missing at remote server
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101 * @throws HgRemoteConnectionException when failed to communicate with remote repository
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102 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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103 * @throws CancelledException if execution of the command was cancelled
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104 */
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105 public List<Nodeid> executeLite() throws HgRemoteConnectionException, HgException, CancelledException {
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106 final ProgressSupport ps = getProgressSupport(null);
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107 try {
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108 return getOutgoingRevisions(ps, getCancelSupport(null, true));
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109 } catch (HgRuntimeException ex) {
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110 throw new HgLibraryFailureException(ex);
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111 } finally {
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112 ps.done();
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113 }
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114 }
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115
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116 /**
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117 * Complete information about outgoing changes
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118 *
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119 * @param handler delegate to process changes
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120 * @throws HgCallbackTargetException propagated exception from the handler
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121 * @throws HgRemoteConnectionException when failed to communicate with remote repository
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122 * @throws HgException subclass thereof to indicate specific issue with the command arguments or repository state
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123 * @throws CancelledException if execution of the command was cancelled
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124 */
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125 public void executeFull(final HgChangesetHandler handler) throws HgCallbackTargetException, HgException, CancelledException {
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126 if (handler == null) {
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127 throw new IllegalArgumentException("Delegate can't be null");
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128 }
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129 final ProgressSupport ps = getProgressSupport(handler);
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130 final CancelSupport cs = getCancelSupport(handler, true);
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131 try {
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132 ps.start(200);
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133 ChangesetTransformer inspector = new ChangesetTransformer(localRepo, handler, getParentHelper(), new ProgressSupport.Sub(ps, 100), cs);
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134 inspector.limitBranches(branches);
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135 List<Nodeid> out = getOutgoingRevisions(new ProgressSupport.Sub(ps, 100), cs);
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136 int[] outRevIndex = new int[out.size()];
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137 int i = 0;
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138 for (Nodeid o : out) {
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139 outRevIndex[i++] = localRepo.getChangelog().getRevisionIndex(o);
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140 }
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141 localRepo.getChangelog().range(inspector, outRevIndex);
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142 inspector.checkFailure();
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143 } catch (HgRuntimeException ex) {
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144 throw new HgLibraryFailureException(ex);
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145 } finally {
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146 ps.done();
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147 }
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148 }
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149
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150 private RepositoryComparator getComparator(ProgressSupport ps, CancelSupport cs) throws HgRemoteConnectionException, CancelledException, HgRuntimeException {
192
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151 if (remoteRepo == null) {
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152 throw new IllegalArgumentException("Shall specify remote repository to compare against");
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153 }
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154 if (comparator == null) {
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155 comparator = new RepositoryComparator(getParentHelper(), remoteRepo);
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156 comparator.compare(ps, cs);
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157 }
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158 return comparator;
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159 }
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160
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161 private HgParentChildMap<HgChangelog> getParentHelper() throws HgRuntimeException {
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162 if (parentHelper == null) {
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163 parentHelper = new HgParentChildMap<HgChangelog>(localRepo.getChangelog());
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164 parentHelper.init();
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165 }
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166 return parentHelper;
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167 }
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168
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169
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170 private List<Nodeid> getOutgoingRevisions(ProgressSupport ps, CancelSupport cs) throws HgRemoteConnectionException, HgException, CancelledException {
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171 ps.start(10);
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172 final RepositoryComparator c = getComparator(new ProgressSupport.Sub(ps, 5), cs);
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173 List<Nodeid> local = c.getLocalOnlyRevisions();
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174 ps.worked(3);
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175 PhasesHelper phaseHelper = new PhasesHelper(Internals.getInstance(localRepo));
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176 if (phaseHelper.isCapableOfPhases() && phaseHelper.withSecretRoots()) {
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177 local = new RevisionSet(local).subtract(phaseHelper.allSecret()).asList();
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178 }
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179 ps.worked(2);
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180 return local;
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181 }
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182 }