1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * Foster Wheeler Energia Oy - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.interop.test;
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14 import java.util.ArrayList;
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15 import java.util.Arrays;
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16 import java.util.Collection;
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17 import java.util.Collections;
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18 import java.util.Comparator;
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19 import java.util.HashMap;
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20 import java.util.HashSet;
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21 import java.util.List;
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22 import java.util.Map;
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23 import java.util.Set;
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24 import java.util.Stack;
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26 import org.simantics.db.ReadGraph;
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27 import org.simantics.db.Resource;
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28 import org.simantics.db.Session;
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29 import org.simantics.db.Statement;
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30 import org.simantics.db.common.request.ReadRequest;
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31 import org.simantics.db.common.utils.NameUtils;
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32 import org.simantics.db.exception.DatabaseException;
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33 import org.simantics.db.exception.DoesNotContainValueException;
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34 import org.simantics.db.exception.ManyObjectsForFunctionalRelationException;
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35 import org.simantics.db.exception.ServiceException;
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36 import org.simantics.db.exception.ValidationException;
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37 import org.simantics.layer0.Layer0;
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38 import org.simantics.utils.datastructures.BijectionMap;
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39 import org.simantics.utils.datastructures.MapList;
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40 import org.simantics.utils.datastructures.Pair;
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43 * Compares two subgraphs and reports differences.
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45 * Assumes that subgraphs (defined using traverse relations) are not cyclic.
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47 * Assumes that properties can be used to identify objects, if relation type is not enough.
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51 * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
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54 public class GraphComparator {
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56 private static final boolean DEBUG = false;
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58 private Resource r1;
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59 private Resource r2;
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60 private Set<Resource> strong = new HashSet<Resource>(); // List of relations that identify object, if subject is already identified.
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61 private List<Resource> traversed = new ArrayList<Resource>(); // list of relations that are traversed (and tested)
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62 private List<Resource> tested = new ArrayList<Resource>(); // list of relations that are tested, but not traversed
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63 private List<Resource> nonTraversed = new ArrayList<Resource>(); // list of relations that are not traversed
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64 private List<Resource> nonTested = new ArrayList<Resource>(); // list of relations that are not tested
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66 private List<Statement> changes1 = new ArrayList<Statement>();
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67 private List<Statement> changes2 = new ArrayList<Statement>();
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68 private List<Pair<Statement,Statement>> modifications = new ArrayList<Pair<Statement,Statement>>();
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69 private Set<Statement> changes1Set = new HashSet<Statement>();
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70 private Set<Statement> changes2Set = new HashSet<Statement>();
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71 private Set<Pair<Statement,Statement>> modificationsSet = new HashSet<Pair<Statement,Statement>>();
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73 private BijectionMap<Statement, Statement> comparableStatements = new BijectionMap<Statement, Statement>();
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74 private BijectionMap<Resource, Resource> comparableResources = new BijectionMap<Resource, Resource>();
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75 private Set<Resource> processedResources = new HashSet<Resource>();
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77 private ResourceComparator comparator;
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79 private Comparator<Statement> scomp = new PredicateComparator();
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80 private Comparator<Resource> rcomp = new ResComparator();
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82 // runtime attributes
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84 private ReadGraph g;
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87 public GraphComparator(Resource r1, Resource r2) {
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90 comparator = new TypeComparator();
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93 public GraphComparator(Resource r1, Resource r2, ResourceComparator comparator) {
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96 this.comparator = comparator;
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99 ArrayList<Statement> ss1 = new ArrayList<Statement>();
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100 ArrayList<Statement> ss2 = new ArrayList<Statement>();
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103 public Comparator<Resource> getResourceComparator() {
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107 public Comparator<Statement> getStatementComparator() {
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111 public Resource getR1() {
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115 public Resource getR2() {
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119 public void addTraversed(Resource rel) {
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120 traversed.add(rel);
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123 public void addTraversed(Collection<Resource> rels) {
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124 traversed.addAll(rels);
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127 public void addNonTraversed(Resource rel) {
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128 nonTraversed.add(rel);
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131 public void addNonTraversed(Collection<Resource> rels) {
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132 nonTraversed.addAll(rels);
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135 public void addTested(Resource rel) {
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139 public void addTested(Collection<Resource> rels) {
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140 tested.addAll(rels);
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143 public void addNonTested(Resource rel) {
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144 nonTested.add(rel);
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147 public void addNonTested(Collection<Resource> rels) {
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148 nonTested.addAll(rels);
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151 public void addComparableResources(Resource r1, Resource r2) {
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152 comparableResources.map(r1, r2);
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155 public void addComparableResources(BijectionMap<Resource, Resource> matching) {
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156 comparableResources.addAll(matching);
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159 public void addStrong(Resource r) {
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163 public void addStrong(Collection<Resource> rels) {
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164 strong.addAll(rels);
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168 public void test(ReadGraph g) throws DatabaseException {
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170 this.b = Layer0.getInstance(g);
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171 comparator.setComparator(this);
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173 Stack<Resource> objectsLeft = new Stack<Resource>();
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174 Stack<Resource> objectsRight = new Stack<Resource>();
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175 objectsLeft.push(r1);
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176 objectsRight.push(r2);
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178 Set<Statement> unreliableLeft = new HashSet<Statement>();
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179 Set<Statement> unreliableRight = new HashSet<Statement>();
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182 if (objectsLeft.isEmpty())
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186 // process compares objects that are identified and searches for more resources to process.
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187 process(objectsLeft, objectsRight, unreliableLeft, unreliableRight);
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188 // process unreliable handles cases where unidentified statements subject and object have been identified
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189 processUnreliable(unreliableLeft, unreliableRight);
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190 // process unreliable handles cases where unidentified resources have path of length one to identified resource
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191 processUnreliable(unreliableLeft, unreliableRight,objectsLeft,objectsRight);
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192 if (objectsLeft.isEmpty() && unreliableLeft.size() > 0 && unreliableRight.size() > 0) {
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193 // comparison is ending, but we have still unprocessed unidentified resources left.
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194 // These cases have longer path than one to identified objects.
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195 processUnreliableDeep(unreliableLeft, unreliableRight, objectsLeft, objectsRight);
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199 for (Statement s : unreliableLeft) {
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200 if (!comparableStatements.containsLeft(s))
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203 for (Statement s : unreliableRight) {
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204 if (!comparableStatements.containsRight(s))
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211 public void test(Session session) throws DatabaseException {
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213 comparator.setComparator(this);
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215 comparableResources.map(r1, r2);
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217 final Stack<Resource> objectsLeft = new Stack<Resource>();
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218 final Stack<Resource> objectsRight = new Stack<Resource>();
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219 objectsLeft.push(r1);
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220 objectsRight.push(r2);
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222 final Set<Statement> unreliableLeft = new HashSet<Statement>();
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223 final Set<Statement> unreliableRight = new HashSet<Statement>();
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226 if (objectsLeft.isEmpty())
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228 session.syncRequest(new ReadRequest() {
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231 public void run(ReadGraph graph) throws DatabaseException {
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233 b = Layer0.getInstance(graph);
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234 // process compares objects that are identified and searches for more resources to process.
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235 process(objectsLeft, objectsRight, unreliableLeft, unreliableRight);
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236 // process unreliable handles cases where unidentified statements subject and object have been identified
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237 processUnreliable(unreliableLeft, unreliableRight);
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238 // process unreliable handles cases where unidentified resources have path of length one to identified resource
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239 processUnreliable(unreliableLeft, unreliableRight,objectsLeft,objectsRight);
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240 if (objectsLeft.isEmpty() && unreliableLeft.size() > 0 && unreliableRight.size() > 0) {
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241 // comparison is ending, but we have still unprocessed unidentified resources left.
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242 // These cases have longer path than one to identified objects.
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243 processUnreliableDeep(unreliableLeft, unreliableRight, objectsLeft, objectsRight);
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251 for (Statement s : unreliableLeft) {
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252 if (!comparableStatements.containsLeft(s))
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255 for (Statement s : unreliableRight) {
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256 if (!comparableStatements.containsRight(s))
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263 private void process(Stack<Resource> objectsLeft, Stack<Resource> objectsRight, Set<Statement> unreliableLeft, Set<Statement> unreliableRight) throws DatabaseException {
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264 List<Statement> ss1 = new ArrayList<Statement>();
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265 List<Statement> ss2 = new ArrayList<Statement>();
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267 while (!objectsLeft.isEmpty()) {
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268 Resource r1 = objectsLeft.pop();
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269 Resource r2 = objectsRight.pop();
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274 if (processedResources.contains(r1))
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276 processedResources.add(r1);
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279 if(!comparableResources.contains(r1, r2) && (comparableResources.containsLeft(r1)||comparableResources.containsRight(r2))) {
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280 throw new DatabaseException("Comparator error: Trying to map " + r1 + " to " + r2 + " while mappings " + r1 + " to " + comparableResources.getRight(r1) + " and " + comparableResources.getLeft(r2) + " to " + r2 + " exist.");
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283 //System.out.println("test " + NameUtils.getSafeName(g, r1) + " " + NameUtils.getSafeName(g, r2));
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284 compareProps(r1, r2);
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286 for (Resource rel : tested) {
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287 ss1.addAll(g.getStatements(r1, rel));
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288 ss2.addAll(g.getStatements(r2, rel));
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289 ss1 = filterAsserted(r1, ss1);
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290 ss2 = filterAsserted(r2, ss2);
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291 ss1 = filterTraversed(ss1);
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292 ss2 = filterTraversed(ss2);
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293 ss1 = filterNonTested(ss1);
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294 ss2 = filterNonTested(ss2);
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296 compareStatements(ss1, ss2, null, null,null,null);
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301 for (Resource rel : traversed) {
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302 ss1.addAll(g.getStatements(r1, rel));
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303 ss2.addAll(g.getStatements(r2, rel));
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304 ss1 = filterAsserted(r1, ss1);
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305 ss2 = filterAsserted(r2, ss2);
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306 compareStatements(ss1, ss2, objectsLeft, objectsRight,unreliableLeft,unreliableRight);
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314 private void processUnreliable(Set<Statement> unreliableLeft, Set<Statement> unreliableRight) throws DatabaseException {
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315 MapList<Resource,Statement> subjectLeft = new MapList<Resource, Statement>();
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316 MapList<Resource,Statement> subjectRight = new MapList<Resource, Statement>();
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317 MapList<Resource,Statement> objectLeft = new MapList<Resource, Statement>();
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318 MapList<Resource,Statement> objectRight = new MapList<Resource, Statement>();
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320 for (Statement s : unreliableLeft) {
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321 subjectLeft.add(s.getSubject(),s);
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322 objectLeft.add(s.getObject(),s);
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324 for (Statement s : unreliableRight) {
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325 subjectRight.add(s.getSubject(),s);
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326 objectRight.add(s.getObject(),s);
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329 for (Resource left : subjectLeft.getKeys()) {
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330 if (!comparableResources.containsLeft(left))
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332 Resource right = comparableResources.getRight(left);
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333 for (Statement leftS : subjectLeft.getValues(left)) {
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334 Resource leftO = leftS.getObject();
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335 if (!comparableResources.containsLeft(leftO))
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337 if (!unreliableLeft.contains(leftS))
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339 Resource rightO = comparableResources.getRight(leftO);
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340 for (Statement rightS : subjectRight.getValues(right)) {
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341 if (!rightS.getObject().equals(rightO))
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343 if (!unreliableRight.contains(rightS))
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345 if (leftS.getPredicate().equals(rightS.getPredicate()) ||
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346 comparableResources.contains(leftS.getPredicate(), rightS.getPredicate())) {
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347 unreliableLeft.remove(leftS);
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348 unreliableRight.remove(rightS);
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349 addComparable(leftS, rightS, false);
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357 private void processUnreliable(Set<Statement> unreliableLeft, Set<Statement> unreliableRight, Stack<Resource> objectsLeft, Stack<Resource> objectsRight) throws DatabaseException {
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358 MapList<Resource,Statement> subjectLeft = new MapList<Resource, Statement>();
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359 MapList<Resource,Statement> subjectRight = new MapList<Resource, Statement>();
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360 MapList<Resource,Statement> objectLeft = new MapList<Resource, Statement>();
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361 MapList<Resource,Statement> objectRight = new MapList<Resource, Statement>();
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363 for (Statement s : unreliableLeft) {
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364 subjectLeft.add(s.getSubject(),s);
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365 objectLeft.add(s.getObject(),s);
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367 for (Statement s : unreliableRight) {
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368 subjectRight.add(s.getSubject(),s);
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369 objectRight.add(s.getObject(),s);
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372 for (Resource ol : objectLeft.getKeys()) {
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373 // all statements to the left side object
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374 List<Statement> left = objectLeft.getValues(ol);
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375 // all subjects that have statements to the left side object (ol)
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376 Set<Resource> sLeft = new HashSet<Resource>();
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377 // all matching subjects on the right side
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378 Set<Resource> sRight = new HashSet<Resource>();
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379 for (Statement s : left) {
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380 sLeft.add(s.getSubject());
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381 sRight.add(comparableResources.getRight(s.getSubject()));
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384 // check if object left can be reliably identified by available statements
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385 // if there are any objects on the left side with similar statements, object left cannot be mapped.
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386 boolean hasSimilar = false;
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387 MapList<Resource, Statement> comparableOLeft = new MapList<Resource, Statement>();
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388 for (Resource sl : sLeft) {
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389 for (Statement s : subjectLeft.getValues(sl)) {
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390 if (!s.getObject().equals(ol)) {
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391 comparableOLeft.add(s.getObject(),s);
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396 for (Resource similarOl : comparableOLeft.getKeys()) {
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397 List<Statement> similarLeft = comparableOLeft.getValues(similarOl);
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398 if (similarLeft.size() == left.size()) {
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399 boolean useL[] = new boolean[left.size()];
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400 boolean useSL[] = new boolean[left.size()];
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401 for (int i = 0; i < left.size(); i++) {
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405 for (int i = 0; i < left.size(); i++) {
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406 for (int j = 0; j < left.size(); j++) {
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409 Resource pl = left.get(i).getPredicate();
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410 Resource psl = similarLeft.get(j).getPredicate();
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411 if (pl.equals(psl)) {
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418 boolean diff = false;
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419 for (int i = 0; i < left.size(); i++) {
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420 if (!useL[i] || !useSL[i]) {
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435 // all objects that subjects on the right side point to. Object left has its matching resource among these, if it has matching resource
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436 MapList<Resource,Statement> possibleOR = new MapList<Resource, Statement>();
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437 for (Resource sr : sRight) {
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438 for (Statement s : subjectRight.getValues(sr))
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439 possibleOR.add(s.getObject(),s);
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442 // filter possible right side objects to those that have same amount of statements as the left side object
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443 for (Resource or : possibleOR.getKeys().toArray(new Resource[possibleOR.getKeys().size()])) {
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444 List<Statement> right = possibleOR.getValues(or);
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445 if (right.size() != left.size())
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446 possibleOR.remove(or);
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450 // check for matching statements (comparable subjects, matching predicates)
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451 MapList<Resource,Statement> matchingOR = new MapList<Resource, Statement>(); // list of objects that have matching statements
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452 Map<Resource,Pair<int[], int[]>> matchingStatements = new HashMap<Resource, Pair<int[], int[]>>(); // matching statements
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453 for (Resource or : possibleOR.getKeys()) {
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454 List<Statement> right = possibleOR.getValues(or);
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455 int iLeft[] = new int[left.size()];
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456 int iRight[] = new int[right.size()];
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458 for (int i = 0; i < left.size(); i++) {
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463 for (int l = 0; l < left.size(); l++) {
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464 Statement ls = left.get(l);
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465 for (int r = 0; r < right.size(); r++) {
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466 if (iRight[r] >= 0)
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468 Statement rs = right.get(r);
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469 if (!comparableResources.contains(ls.getSubject(), rs.getSubject()))
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471 if (rcomp.compare(ls.getPredicate(),rs.getPredicate()) == 0) {
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479 boolean success = true;
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480 for (int i = 0; i < left.size(); i++) {
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481 if (iLeft[i] < 0) {
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485 if (iRight[i] < 0) {
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492 for (Statement s : right)
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493 matchingOR.add(or,s);
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494 matchingStatements.put(or, new Pair<int[], int[]>(iLeft, iRight));
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497 // if there is only one matching right side object, we have found a match
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498 if (matchingOR.getKeySize() == 1) {
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499 Resource or = matchingOR.getKeys().iterator().next();
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500 List<Statement> right = matchingOR.getValues(or);
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501 Pair<int[], int[]> indices = matchingStatements.get(or);
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503 objectsLeft.add(ol);
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504 objectsRight.add(or);
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505 addComparable(ol, or, false);
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506 for (int l = 0; l < left.size(); l++) {
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507 int r = indices.first[l];
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508 Statement sl = left.get(l);
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509 Statement sr = right.get(r);
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510 addComparable(sl, sr, true);
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511 unreliableLeft.remove(sl);
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512 unreliableRight.remove(sr);
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522 private void processUnreliableDeep(Set<Statement> unreliableLeft, Set<Statement> unreliableRight, Stack<Resource> objectsLeft, Stack<Resource> objectsRight) throws DatabaseException {
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523 MapList<Resource,Statement> subjectLeft = new MapList<Resource, Statement>();
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524 MapList<Resource,Statement> subjectRight = new MapList<Resource, Statement>();
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525 MapList<Resource,Statement> objectLeft = new MapList<Resource, Statement>();
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526 MapList<Resource,Statement> objectRight = new MapList<Resource, Statement>();
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528 for (Statement s : unreliableLeft) {
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529 subjectLeft.add(s.getSubject(),s);
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530 objectLeft.add(s.getObject(),s);
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532 for (Statement s : unreliableRight) {
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533 subjectRight.add(s.getSubject(),s);
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534 objectRight.add(s.getObject(),s);
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536 for (Resource ol : objectLeft.getKeys()) {
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537 Set<Path> pathsLeft = new HashSet<Path>();
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538 for (Resource rel : traversed) {
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539 pathsLeft.addAll(Path.create(g.getStatements(ol, rel)));
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543 if (pathsLeft.size() == 0)
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545 Collection<Path> endPaths = new ArrayList<Path>(1);
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546 for (Path p : pathsLeft) {
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547 if (comparableResources.containsLeft(p.getEnd())) {
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551 if (endPaths.size() > 0) {
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553 pathsLeft.addAll(endPaths);
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557 if (pathsLeft.size() > 0) {
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558 Resource sl = objectLeft.getValues(ol).get(0).getSubject();
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559 Resource sr = comparableResources.getRight(sl);
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560 Collection<Resource> possibleOR = new ArrayList<Resource>();
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561 for (Statement s : subjectRight.getValues(sr)) {
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562 possibleOR.add(s.getObject());
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564 Map<Resource,Set<Path>> matchingPaths = new HashMap<Resource, Set<Path>>();
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565 for (Resource or : possibleOR) {
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566 Set<Path> possiblePathsRight = new HashSet<Path>();
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567 for (Path leftPath : pathsLeft) {
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568 possiblePathsRight.addAll(findComparableRight(leftPath, or));
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570 if (hasMatchingPaths(pathsLeft, possiblePathsRight)) {
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571 matchingPaths.put(or, possiblePathsRight);
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574 if (matchingPaths.size() > 0) {
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575 if (matchingPaths.size() == 1) {
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576 Resource or = matchingPaths.keySet().iterator().next();
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578 objectsLeft.add(ol);
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579 objectsRight.add(or);
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580 addComparable(ol, or, false);
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581 Collection<Statement> statementsLeft = objectLeft.getValues(ol);
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582 Collection<Statement> statementsRight = objectRight.getValues(or);
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583 unreliableLeft.removeAll(statementsLeft);
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584 unreliableRight.removeAll(statementsRight);
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585 BijectionMap<Path,Path> map = getMatchingPaths(pathsLeft, matchingPaths.get(or));
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586 for (Path left : map.getLeftSet()) {
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587 Path right = map.getRight(left);
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588 for (int i = 0; i < left.getLength(); i++) {
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589 addComparable(left.getStatements().get(i),right.getStatements().get(i),false);
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600 private boolean hasMatchingPaths(Set<Path> leftPaths, Set<Path> rightPaths) {
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601 if (leftPaths.size() != rightPaths.size())
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603 BijectionMap<Path,Path> map = getMatchingPaths(leftPaths, rightPaths);
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604 return map.size() == leftPaths.size();
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608 private BijectionMap<Path,Path> getMatchingPaths(Set<Path> leftPaths, Set<Path> rightPaths) {
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609 BijectionMap<Path,Path> map = new BijectionMap<Path, Path>();
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610 for (Path leftPath : leftPaths) {
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611 for (Path rightPath : rightPaths) {
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612 if (map.containsRight(rightPath))
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614 if (leftPath.getLength() != rightPath.getLength())
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616 if (comparableResources.contains(leftPath.getEnd(), rightPath.getEnd())) {
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617 map.map(leftPath, rightPath);
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625 private void expand(Set<Path> paths) throws ManyObjectsForFunctionalRelationException, ServiceException {
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626 Set<Path> stepPathsLeft = new HashSet<Path>();
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627 if (paths.size() == 0)
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629 int length = paths.iterator().next().getLength() + 1;
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630 for (Path p : paths) {
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631 for (Resource rel : traversed) {
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632 stepPathsLeft.addAll(Path.expand(p,g.getStatements(p.getEnd(), rel)));
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636 for (Path p : stepPathsLeft) {
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637 if (p.getLength() == length)
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642 private Collection<Path> findComparableRight(Path leftPath, Resource beginRight) throws ManyObjectsForFunctionalRelationException, ServiceException {
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643 Set<Path> rightPaths = new HashSet<Path>();
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644 rightPaths.addAll(Path.create(g.getStatements(beginRight, getRight(leftPath.getStatements().get(0).getPredicate()))));
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645 for (int i = 1; i < leftPath.getLength(); i++) {
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646 if (rightPaths.size() == 0)
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648 Set<Path> stepPaths = new HashSet<Path>();
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649 for (Path p : rightPaths) {
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650 stepPaths.addAll(Path.expand(p, g.getStatements(p.getEnd(), getRight(leftPath.getStatements().get(i).getPredicate()))));
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652 rightPaths.clear();
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653 for (Path p : stepPaths)
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654 if (p.getLength() == i+1)
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661 private Resource getRight(Resource r) {
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662 if (comparableResources.containsLeft(r))
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663 return comparableResources.getRight(r);
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669 public BijectionMap<Statement, Statement> getComparableStatements() {
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670 return comparableStatements;
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673 public GraphChanges getChanges() {
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674 return new GraphChanges(r1,r2,changes1,changes2,modifications,comparableResources);
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677 private void addComparable(Statement left, Statement right, boolean process) throws DatabaseException {
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678 addComparable(left.getObject(), right.getObject(), process);
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679 comparableStatements.map(left, right);
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680 comparableResources.map(left.getObject(), right.getObject());
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683 private void addComparable(Resource left, Resource right, boolean process) throws DatabaseException {
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684 if(!comparableResources.contains(r1, r2)) {
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685 if (comparableResources.containsLeft(r1)||comparableResources.containsRight(r2)) {
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686 throw new DatabaseException("Comparator error: Trying to map " + r1 + " to " + r2 + " while mappings " + r1 + " to " + comparableResources.getRight(r1) + " and " + comparableResources.getLeft(r2) + " to " + r2 + " exist.");
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688 comparableResources.map(left, right);
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694 public List<Statement> filterAsserted(Resource r, Collection<Statement> in) throws ServiceException {
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695 List<Statement> out = new ArrayList<Statement>();
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696 for (Statement s : in) {
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697 if (!s.isAsserted(r))
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704 private String printStatement(ReadGraph graph, Statement s) throws ValidationException, ServiceException {
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705 return NameUtils.getSafeName(graph, s.getSubject()) + " " + NameUtils.getSafeName(graph, s.getPredicate()) + " " + NameUtils.getSafeName(graph, s.getObject());
\r
708 private List<Statement> filterTraversed(List<Statement> in) throws ServiceException {
\r
709 return filter(traversed, in);
\r
712 private List<Statement> filterNonTested(List<Statement> in) throws ServiceException {
\r
713 return filter(nonTested, in);
\r
716 private List<Statement> filter(Collection<Resource> toFilter, List<Statement> in) throws ServiceException {
\r
717 if (toFilter.size() == 0)
\r
719 List<Statement> out = new ArrayList<Statement>();
\r
720 for (Statement s : in) {
\r
721 boolean usable = true;
\r
722 for (Resource r : toFilter) {
\r
723 if (g.isSubrelationOf(s.getPredicate(),r)) {
\r
737 private void addDeletion(Statement s) {
\r
738 if (!changes1Set.contains(s)) {
\r
739 changes1Set.add(s);
\r
744 private void addAddition(Statement s) {
\r
745 if (!changes2Set.contains(s)) {
\r
746 changes2Set.add(s);
\r
751 private void addModification(Statement s1, Statement s2) {
\r
752 Pair<Statement, Statement> mod = new Pair<Statement, Statement>(s1,s2);
\r
753 if (!modificationsSet.contains(mod)) {
\r
754 modificationsSet.add(mod);
\r
755 modifications.add(mod);
\r
759 public void sortStatement(List<Statement> list1, List<Statement> list2) {
\r
760 sortStatement(list1, list2, scomp);
\r
763 public void sortStatement(List<Statement> list1, List<Statement> list2, Comparator<Statement> scomp) {
\r
764 Collections.sort(list1,scomp);
\r
765 Collections.sort(list2,scomp);
\r
767 List<Statement> sorted1 = new ArrayList<Statement>(list1.size());
\r
768 List<Statement> sorted2 = new ArrayList<Statement>(list2.size());
\r
769 sorted1.addAll(list1);
\r
770 sorted2.addAll(list2);
\r
774 for (int i = 0; i < list1.size(); ) {
\r
775 Statement s1 = list1.get(i);
\r
776 int same1 = sameRel(list1, i);
\r
777 for (int j = 0; j < list2.size(); j++) {
\r
778 Statement s2 = list2.get(j);
\r
779 if (scomp.compare(s1, s2) == 0) {
\r
780 int same2 = sameRel(list2, j);
\r
781 copy(sorted1,ss1,list1,i,same1);
\r
783 copy(sorted2,ss2,list2,j,same2);
\r
790 if (ss1 < sorted1.size()) {
\r
791 for (Statement s : list1) {
\r
792 if (!sorted1.contains(s)) {
\r
793 sorted1.set(ss1,s);
\r
798 if (ss2 < sorted2.size()) {
\r
799 for (Statement s : list2) {
\r
800 if (!sorted2.contains(s)) {
\r
801 sorted2.set(ss2,s);
\r
809 list1.addAll(sorted1);
\r
810 list2.addAll(sorted2);
\r
813 public <T> void copy(List<T> to, int toIndex, List<T> from, int fromIndex, int amount) {
\r
814 for (int i = 0; i < amount; i++) {
\r
815 to.set(toIndex + i, from.get(fromIndex+ i));
\r
819 public void sortResource(List<Resource> list1, List<Resource> list2) {
\r
820 Collections.sort(list1,rcomp);
\r
822 for (int i = 0; i < list1.size(); i++) {
\r
823 Resource s1 = list1.get(i);
\r
824 for (int j = js; j < list2.size(); j++) {
\r
825 Resource s2 = list2.get(j);
\r
826 if (rcomp.compare(s1, s2) == 0) {
\r
827 Resource t = list2.get(js);
\r
837 private void compareStatements(List<Statement> ss1, List<Statement> ss2, Stack<Resource> objectsLeft, Stack<Resource> objectsRight, Collection<Statement> unreliableLeft, Collection<Statement> unreliableRight) throws DatabaseException {
\r
838 sortStatement(ss1, ss2);
\r
844 if (i1 >= ss1.size()) {
\r
845 if (i2 >= ss2.size()) {
\r
848 while (i2 < ss2.size()) {
\r
849 if (DEBUG) System.out.println("Compare Statements diff2 " + printStatement(g,ss2.get(i2)));
\r
851 addAddition(ss2.get(i2));
\r
856 } else if (i2 >= ss2.size()) {
\r
857 while (i1 < ss1.size()) {
\r
858 if (DEBUG) System.out.println("Compare Statements diff1 " + printStatement(g,ss1.get(i1)));
\r
859 addDeletion(ss1.get(i1));
\r
864 int same1 = sameRel(ss1, i1);
\r
865 int same2 = sameRel(ss2, i2);
\r
866 int c = rcomp.compare(ss1.get(i1).getPredicate(),ss2.get(i2).getPredicate());
\r
868 compareStatements(ss1, i1, same1, ss2, i2, same2,objectsLeft,objectsRight,unreliableLeft,unreliableRight);
\r
871 } else if (c < 0) {
\r
872 for (int i = 0; i < same1; i++) {
\r
873 if (DEBUG) System.out.println("Compare Statements diff1 " + printStatement(g,ss1.get(i+i1)));
\r
874 addDeletion(ss1.get(i+i1));
\r
878 for (int i = 0; i < same2; i++) {
\r
879 if (DEBUG) System.out.println("Compare Statements diff2 " + printStatement(g,ss2.get(i+i2)));
\r
880 addAddition(ss2.get(i+i2));
\r
890 private int sameRel(List<Statement> statements, int off) {
\r
891 if (statements.size() <= off)
\r
894 long id = statements.get(off).getPredicate().getResourceId();
\r
895 for (int i = off+1; i <statements.size(); i++) {
\r
896 if (statements.get(i).getPredicate().getResourceId() == id)
\r
905 private int compareObject(Resource o1, Resource o2) throws DatabaseException {
\r
908 if (comparableResources.contains(o1, o2))
\r
910 if (comparableResources.containsLeft(o1))
\r
911 return Integer.MAX_VALUE;
\r
912 if (comparableResources.containsRight(o2))
\r
913 return Integer.MAX_VALUE;
\r
914 return comparator.compare(g, o1, o2);
\r
917 private void compareStatements(List<Statement> ss1, int off1, int len1, List<Statement> ss2, int off2, int len2, Collection<Resource> objectsLeft, Collection<Resource> objectsRight, Collection<Statement> unreliableLeft, Collection<Statement> unreliableRight) throws DatabaseException {
\r
918 boolean[] used1 = new boolean[len1];
\r
919 for (int i = 0; i < used1.length; i++) {
\r
923 boolean[] used2 = new boolean[len2];
\r
924 for (int i = 0; i < used2.length; i++) {
\r
928 // left, right, difference
\r
929 List<List<Integer>> differences = new ArrayList<List<Integer>>();
\r
930 for (int i1 = off1; i1 < off1 + len1; i1++) {
\r
931 Statement s1 = ss1.get(i1);
\r
932 List<Integer> diff = new ArrayList<Integer>();
\r
933 for (int i2 = off2; i2 < off2 + len2; i2++) {
\r
934 Statement s2 = ss2.get(i2);
\r
935 int d = compareObject(s1.getObject(), s2.getObject());
\r
937 for (Resource t : strong) {
\r
938 if (s1.getPredicate().equals(t) || g.isSubrelationOf(s1.getPredicate(), t)) {
\r
946 differences.add(diff);
\r
948 // difference, left
\r
949 MapList<Integer, Integer> priorities = new MapList<Integer, Integer>();
\r
950 for (int i = 0; i < differences.size(); i++) {
\r
951 List<Integer> list = differences.get(i);
\r
952 for (int j = 0; j < list.size(); j++) {
\r
953 priorities.add(list.get(j), i);
\r
957 Integer[] pris = priorities.getKeys(new Integer[]{});
\r
960 for (Integer pri : pris) {
\r
961 if (pri == Integer.MAX_VALUE) {
\r
963 } else if (pri == 0) {
\r
966 List<Integer> i1s = priorities.getValues(pri);
\r
967 for (Integer i1 : i1s) {
\r
970 List<Integer> i2diff = differences.get(i1);
\r
971 for (int i2 = 0; i2 < i2diff.size(); i2++) {
\r
972 if (i2diff.get(i2) == pri) {
\r
977 Statement s1 = ss1.get(i1+off1);
\r
978 Statement s2 = ss2.get(i2+off2);
\r
980 if (objectsLeft != null) {
\r
981 objectsLeft.add(s1.getObject());
\r
982 objectsRight.add(s2.getObject());
\r
984 addComparable(s1, s2, true);
\r
992 for (Integer pri : pris) {
\r
995 Set<Statement> s1s = new HashSet<Statement>();
\r
996 Set<Statement> s2s = new HashSet<Statement>();
\r
997 Set<Integer> s1i = new HashSet<Integer>();
\r
998 Set<Integer> s2i = new HashSet<Integer>();
\r
999 List<Integer> i1s = priorities.getValues(pri);
\r
1000 for (Integer i1 : i1s) {
\r
1003 List<Integer> i2diff = differences.get(i1);
\r
1004 for (int i2 = 0; i2 < i2diff.size(); i2++) {
\r
1005 if (i2diff.get(i2) == pri) {
\r
1008 Statement s1 = ss1.get(i1+off1);
\r
1009 Statement s2 = ss2.get(i2+off2);
\r
1017 if (unreliableLeft != null) {
\r
1018 unreliableLeft.addAll(s1s);
\r
1019 unreliableRight.addAll(s2s);
\r
1021 for (Integer i : s1i)
\r
1023 for (Integer i : s2i)
\r
1027 for (int i1 = off1; i1 < off1 + len1; i1++) {
\r
1028 if (!used1[i1-off1]) {
\r
1029 if (DEBUG) System.out.println("Compare Object diff1 " + printStatement(g,ss1.get(i1)));
\r
1030 addDeletion(ss1.get(i1));
\r
1033 for (int i2 = off2; i2 < off2 + len2; i2++) {
\r
1034 if (!used2[i2-off2]) {
\r
1035 if (DEBUG) System.out.println("Compare Object diff2 " + printStatement(g,ss2.get(i2)));
\r
1036 addAddition(ss2.get(i2));
\r
1044 * compares properties, assumes functional relations
\r
1047 * @throws ServiceException
\r
1048 * @throws DoesNotContainValueException
\r
1049 * @throws ValidationException
\r
1051 private void compareProps(Resource r1, Resource r2) throws DatabaseException {
\r
1052 if (DEBUG) System.out.println("compareProps " + r1 + " " + NameUtils.getSafeName(g, r1) + " " + r2 + " " + NameUtils.getSafeName(g, r2));
\r
1053 ArrayList<Statement> ss1 = new ArrayList<Statement>();
\r
1054 ArrayList<Statement> ss2 = new ArrayList<Statement>();
\r
1055 ss1.addAll(g.getStatements(r1, b.HasProperty));
\r
1056 ss2.addAll(g.getStatements(r2, b.HasProperty));
\r
1057 sortStatement(ss1, ss2);
\r
1063 if (i1 >= ss1.size()) {
\r
1064 if (i2 >= ss2.size())
\r
1067 while (i2 < ss2.size()) {
\r
1068 if (DEBUG) System.out.println("Compare Prop diff2 " + printStatement(g,ss2.get(i2)));
\r
1069 addAddition(ss2.get(i2));
\r
1074 } else if (i2 >= ss2.size()) {
\r
1075 while (i1 < ss1.size()) {
\r
1076 if (DEBUG) System.out.println("Compare Prop diff1 " + printStatement(g,ss1.get(i1)));
\r
1077 addDeletion(ss1.get(i1));
\r
1082 Statement s1 = ss1.get(i1);
\r
1083 Statement s2 = ss2.get(i2);
\r
1084 if (s1.isAsserted(r1) && s2.isAsserted(r2)) {
\r
1089 int c = scomp.compare(s1, s2);
\r
1092 boolean b1 = g.hasValue(s1.getObject());
\r
1093 boolean b2 = g.hasValue(s2.getObject());
\r
1096 Object v1 = g.getValue(s1.getObject());
\r
1097 Object v2 = g.getValue(s2.getObject());
\r
1098 boolean eq = compareValue(v1, v2);
\r
1100 addModification(s1, s2);
\r
1101 addComparable(s1, s2, false);
\r
1104 if (!s1.getObject().equals(s1.getSubject()) && !s2.getObject().equals(s2.getSubject()))
\r
1105 compareProps(s1.getObject(), s2.getObject());
\r
1108 addModification(s1, s2);
\r
1109 addComparable(s1, s2, false);
\r
1116 if (DEBUG) System.out.println("Compare Prop diff1s " + printStatement(g,s1));
\r
1123 if (DEBUG) System.out.println("Compare Prop diff2s " + printStatement(g,s2));
\r
1137 public static boolean compareValue(Object v1, Object v2) {
\r
1138 if (v1 instanceof Object[] && v2 instanceof Object[])
\r
1139 return Arrays.deepEquals((Object[])v1, (Object[])v2);
\r
1140 else if (v1 instanceof int[] && v2 instanceof int[])
\r
1141 return Arrays.equals((int[])v1, (int[])v2);
\r
1142 else if (v1 instanceof float[] && v2 instanceof float[])
\r
1143 return Arrays.equals((float[])v1, (float[])v2);
\r
1144 else if (v1 instanceof double[] && v2 instanceof double[])
\r
1145 return Arrays.equals((double[])v1, (double[])v2);
\r
1146 else if (v1 instanceof long[] && v2 instanceof long[])
\r
1147 return Arrays.equals((long[])v1, (long[])v2);
\r
1148 else if (v1 instanceof byte[] && v2 instanceof byte[])
\r
1149 return Arrays.equals((byte[])v1, (byte[])v2);
\r
1150 else if (v1 instanceof boolean[] && v2 instanceof boolean[])
\r
1151 return Arrays.equals((boolean[])v1, (boolean[])v2);
\r
1153 return v1.equals(v2);
\r
1157 public class PredicateComparator implements Comparator<Statement> {
\r
1159 public int compare(Statement o1, Statement o2) {
\r
1160 if (comparableResources.contains(o1.getPredicate(), o2.getPredicate()))
\r
1162 if (o1.getPredicate().getResourceId() < o2.getPredicate().getResourceId())
\r
1164 if (o1.getPredicate().getResourceId() > o2.getPredicate().getResourceId())
\r
1170 public class SubjectComparator implements Comparator<Statement> {
\r
1172 public int compare(Statement o1, Statement o2) {
\r
1173 if (comparableResources.contains(o1.getSubject(), o2.getSubject()))
\r
1175 if (o1.getSubject().getResourceId() < o2.getSubject().getResourceId())
\r
1177 if (o1.getSubject().getResourceId() > o2.getSubject().getResourceId())
\r
1183 public class ObjectComparator implements Comparator<Statement> {
\r
1185 public int compare(Statement o1, Statement o2) {
\r
1186 if (comparableResources.contains(o1.getObject(), o2.getObject()))
\r
1188 if (o1.getObject().getResourceId() < o2.getObject().getResourceId())
\r
1190 if (o1.getObject().getResourceId() > o2.getObject().getResourceId())
\r
1196 public static class FullStatementComparator implements Comparator<Statement> {
\r
1198 public int compare(Statement o1, Statement o2) {
\r
1199 if (o1.getSubject().getResourceId() < o2.getSubject().getResourceId())
\r
1201 if (o1.getSubject().getResourceId() > o2.getSubject().getResourceId())
\r
1203 if (o1.getPredicate().getResourceId() < o2.getPredicate().getResourceId())
\r
1205 if (o1.getPredicate().getResourceId() > o2.getPredicate().getResourceId())
\r
1207 if (o1.getObject().getResourceId() < o2.getObject().getResourceId())
\r
1209 if (o1.getObject().getResourceId() > o2.getObject().getResourceId())
\r
1215 public class ResComparator implements Comparator<Resource> {
\r
1217 public int compare(Resource o1, Resource o2) {
\r
1218 if (comparableResources.contains(o1, o2))
\r
1220 if (o1.getResourceId() < o2.getResourceId())
\r
1222 if (o1.getResourceId() > o2.getResourceId())
\r