Mercurial > jhg

annotate cmdline/org/tmatesoft/hg/console/Incoming.java @ 461:613c883e360e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Do not walk into nested repositories at all, ignore not only .hg but whole nested repo
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 20 Jun 2012 16:51:18 +0200
parents 45dc79e545f5
children
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.console;
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18
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19 import java.util.Arrays;
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20 import java.util.Collections;
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21 import java.util.Comparator;
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22 import java.util.HashSet;
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23 import java.util.Iterator;
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24 import java.util.LinkedHashMap;
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25 import java.util.LinkedList;
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26 import java.util.List;
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27 import java.util.Map.Entry;
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29 import org.tmatesoft.hg.core.HgIncomingCommand;
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30 import org.tmatesoft.hg.core.HgRepoFacade;
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31 import org.tmatesoft.hg.core.Nodeid;
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32 import org.tmatesoft.hg.repo.HgLookup;
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33 import org.tmatesoft.hg.repo.HgRemoteRepository;
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36 /**
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37 * <em>hg incoming</em> counterpart
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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 Incoming {
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43
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44 public static void main(String[] args) throws Exception {
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45 if (Boolean.FALSE.booleanValue()) {
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46 new SequenceConstructor().test();
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47 return;
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48 }
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49 Options cmdLineOpts = Options.parse(args, Collections.<String>emptySet());
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50 HgRepoFacade hgRepo = new HgRepoFacade();
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51 if (!hgRepo.init(cmdLineOpts.findRepository())) {
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52 System.err.printf("Can't find repository in: %s\n", hgRepo.getRepository().getLocation());
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53 return;
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54 }
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55 HgRemoteRepository hgRemote = new HgLookup().detectRemote(cmdLineOpts.getSingle(""), hgRepo.getRepository());
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56 if (hgRemote.isInvalid()) {
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57 System.err.printf("Remote repository %s is not valid", hgRemote.getLocation());
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58 return;
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59 }
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60 HgIncomingCommand cmd = hgRepo.createIncomingCommand();
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61 cmd.against(hgRemote);
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62 //
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63 List<Nodeid> missing = cmd.executeLite();
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64 Collections.reverse(missing); // useful to test output, from newer to older
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65 Outgoing.dump("Nodes to fetch:", missing);
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66 System.out.printf("Total: %d\n\n", missing.size());
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67 //
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68 // Complete
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69 final ChangesetDumpHandler h = new ChangesetDumpHandler(hgRepo.getRepository());
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70 h.complete(false); // this option looks up index of parent revision, done via repo.changelog (which doesn't have any of these new revisions)
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71 // this can be fixed by tracking all nodeid->revision idx inside ChangesetDumpHandler, and refer to repo.changelog only when that mapping didn't work
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72 h.verbose(cmdLineOpts.getBoolean("-v", "--verbose"));
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73 cmd.executeFull(h);
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74 }
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75
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77 /*
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78 * This is for investigation purposes only
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79 */
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80 private static class SequenceConstructor {
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81
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82 private int[] between(int root, int head) {
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83 if (head <= (root+1)) {
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84 return new int[0];
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85 }
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86 System.out.printf("[%d, %d]\t\t", root, head);
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87 int size = 1 + (int) Math.floor(Math.log(head-root - 1) / Math.log(2));
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88 int[] rv = new int[size];
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89 for (int v = 1, i = 0; i < rv.length; i++) {
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90 rv[i] = root + v;
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91 v = v << 1;
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92 }
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93 System.out.println(Arrays.toString(rv));
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94 return rv;
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95 }
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96
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97 public void test() {
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98 int root = 0, head = 126;
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99 int[] data = between(root, head); // max number of elements to recover is 2**data.length-1, when head is exactly
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100 // 2**data.length element of the branch.
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101 // In such case, total number of elements in the branch (including head and root, would be 2**data.length+1
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102 int[] finalSequence = new int[1 + (1 << data.length >>> 5)]; // div 32 - total bits to integers, +1 for possible modulus
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103 int exactNumberOfElements = -1; // exact number of meaningful bits in finalSequence
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104 LinkedHashMap<Integer, int[]> datas = new LinkedHashMap<Integer, int[]>();
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105 datas.put(root, data);
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106 int totalQueries = 1;
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107 HashSet<Integer> queried = new HashSet<Integer>();
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108 int[] checkSequence = null;
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109 while(!datas.isEmpty()) {
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110 LinkedList<int[]> toQuery = new LinkedList<int[]>();
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111 do {
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112 Iterator<Entry<Integer, int[]>> it = datas.entrySet().iterator();
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113 Entry<Integer, int[]> next = it.next();
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114 int r = next.getKey();
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115 data = next.getValue();
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116 it.remove();
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117 populate(r, head, data, finalSequence);
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118 if (checkSequence != null) {
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119 boolean match = true;
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120 // System.out.println("Try to match:");
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121 for (int i = 0; i < checkSequence.length; i++) {
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122 // System.out.println(i);
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123 // System.out.println("control:" + toBinaryString(checkSequence[i], ' '));
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124 // System.out.println("present:" + toBinaryString(finalSequence[i], ' '));
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125 if (checkSequence[i] != finalSequence[i]) {
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126 match = false;
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127 } else {
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128 match &= true;
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129 }
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130 }
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131 System.out.println(match ? "Match, on query:" + totalQueries : "Didn't match");
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132 }
176
a8df7162ec75 Extracting complete branch using remote between call to detect incoming changes is done. Arguments reorderd in remote repo to better match Hg server ideology, not my mental convenience
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133 if (data.length > 1) {
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134 /*queries for elements next to head is senseless, hence data.length check above and head-x below*/
173
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135 for (int x : data) {
176
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136 if (!queried.contains(x) && head - x > 1) {
173
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137 toQuery.add(new int[] {x, head});
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138 }
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139 }
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140 }
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141 } while (!datas.isEmpty()) ;
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142 if (!toQuery.isEmpty()) {
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143 System.out.println();
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144 totalQueries++;
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145 }
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146 Collections.sort(toQuery, new Comparator<int[]>() {
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147
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148 public int compare(int[] o1, int[] o2) {
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149 return o1[0] < o2[0] ? -1 : (o1[0] == o2[0] ? 0 : 1);
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150 }
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151 });
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152 for (int[] x : toQuery) {
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153 if (!queried.contains(x[0])) {
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154 queried.add(x[0]);
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155 data = between(x[0], x[1]);
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156 if (exactNumberOfElements == -1 && data.length == 1) {
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157 exactNumberOfElements = x[0] + 1;
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158 System.out.printf("On query %d found out exact number of missing elements: %d\n", totalQueries, exactNumberOfElements);
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159 // get a bit sequence of exactNumberOfElements, 0111..110
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160 // to 'and' it with finalSequence later
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161 int totalInts = (exactNumberOfElements + 2 /*heading and tailing zero bits*/) >>> 5;
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162 int trailingBits = (exactNumberOfElements + 2) & 0x1f;
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163 if (trailingBits != 0) {
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164 totalInts++;
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165 }
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166 checkSequence = new int[totalInts];
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167 Arrays.fill(checkSequence, 0xffffffff);
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168 checkSequence[0] &= 0x7FFFFFFF;
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169 if (trailingBits == 0) {
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170 checkSequence[totalInts-1] &= 0xFFFFFFFE;
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171 } else if (trailingBits == 1) {
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172 checkSequence[totalInts-1] = 0;
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173 } else {
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174 // trailingBits include heading and trailing zero bits
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175 int mask = 0x80000000 >> trailingBits-2; // with sign!
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176 checkSequence[totalInts - 1] &= mask;
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177 }
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178 for (int e : checkSequence) {
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179 System.out.print(toBinaryString(e, ' '));
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180 }
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181 System.out.println();
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182 }
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183 datas.put(x[0], data);
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184 }
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185 }
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186 }
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187
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188 System.out.println("Total queries:" + totalQueries);
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189 for (int x : finalSequence) {
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190 System.out.print(toBinaryString(x, ' '));
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191 }
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192 }
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193
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194 private void populate(int root, int head, int[] data, int[] finalSequence) {
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195 for (int i = 1, x = 0; root+i < head; i = i << 1, x++) {
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196 int value = data[x];
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197 int value_check = root+i;
174
b1de83ffa7f8 Build shall succeed with no precompiled classes, too
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198 if (value != value_check) {
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199 throw new IllegalStateException();
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200 }
173
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201 int wordIx = (root + i) >>> 5;
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202 int bitIx = (root + i) & 0x1f;
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203 finalSequence[wordIx] |= 1 << (31-bitIx);
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204 }
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205 }
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206
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207 private static String toBinaryString(int x, char byteSeparator) {
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208 StringBuilder sb = new StringBuilder(4*8+4);
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209 sb.append(toBinaryString((byte) (x >>> 24)));
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210 sb.append(byteSeparator);
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211 sb.append(toBinaryString((byte) ((x & 0x00ff0000) >>> 16)));
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212 sb.append(byteSeparator);
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213 sb.append(toBinaryString((byte) ((x & 0x00ff00) >>> 8)));
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214 sb.append(byteSeparator);
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215 sb.append(toBinaryString((byte) (x & 0x00ff)));
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216 sb.append(byteSeparator);
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217 return sb.toString();
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218 }
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219
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220 private static String toBinaryString(byte b) {
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221 final String nibbles = "0000000100100011010001010110011110001001101010111100110111101111";
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222 assert nibbles.length() == 16*4;
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223 int x1 = (b >>> 4) & 0x0f, x2 = b & 0x0f;
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224 x1 *= 4; x2 *= 4; // 4 characters per nibble
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225 return nibbles.substring(x1, x1+4).concat(nibbles.substring(x2, x2+4));
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226 }
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227 }
31
346b66add79d Basic lookup for incoming changes
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228 }