bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/ModelTransferableGraphSourceRequest.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.layer0.util;
  13
  14 import java.io.BufferedOutputStream;
  15 import java.io.DataOutput;
  16 import java.io.DataOutputStream;
  17 import java.io.File;
  18 import java.io.FileNotFoundException;
  19 import java.io.FileOutputStream;
  20 import java.io.IOException;
  21 import java.lang.management.ManagementFactory;
  22 import java.lang.reflect.InvocationTargetException;
  23 import java.lang.reflect.Method;
  24 import java.util.ArrayList;
  25 import java.util.Collection;
  26 import java.util.Collections;
  27 import java.util.List;
  28 import java.util.UUID;
  29
  30 import org.apache.commons.io.output.DeferredFileOutputStream;
  31 import org.eclipse.core.runtime.IProgressMonitor;
  32 import org.eclipse.core.runtime.OperationCanceledException;
  33 import org.eclipse.core.runtime.SubMonitor;
  34 import org.simantics.databoard.Bindings;
  35 import org.simantics.databoard.Datatypes;
  36 import org.simantics.databoard.accessor.error.AccessorException;
  37 import org.simantics.databoard.binding.Binding;
  38 import org.simantics.databoard.binding.error.BindingException;
  39 import org.simantics.databoard.binding.mutable.Variant;
  40 import org.simantics.databoard.parser.repository.DataTypeSyntaxError;
  41 import org.simantics.databoard.serialization.RuntimeSerializerConstructionException;
  42 import org.simantics.databoard.type.Datatype;
  43 import org.simantics.databoard.util.binary.BinaryFile;
  44 import org.simantics.databoard.util.binary.BinaryMemory;
  45 import org.simantics.databoard.util.binary.DeferredBinaryFile;
  46 import org.simantics.databoard.util.binary.NullRandomAccessBinary;
  47 import org.simantics.databoard.util.binary.RandomAccessBinary;
  48 import org.simantics.db.DirectStatements;
  49 import org.simantics.db.ReadGraph;
  50 import org.simantics.db.RequestProcessor;
  51 import org.simantics.db.Resource;
  52 import org.simantics.db.Statement;
  53 import org.simantics.db.common.request.UniqueRead;
  54 import org.simantics.db.common.utils.NameUtils;
  55 import org.simantics.db.exception.CancelTransactionException;
  56 import org.simantics.db.exception.DatabaseException;
  57 import org.simantics.db.exception.ValidationException;
  58 import org.simantics.db.layer0.adapter.SubgraphExtent.ExtentStatus;
  59 import org.simantics.db.layer0.internal.SimanticsInternal;
  60 import org.simantics.db.service.ClusterControl;
  61 import org.simantics.db.service.ClusterControl.ClusterState;
  62 import org.simantics.db.service.ClusteringSupport;
  63 import org.simantics.db.service.CollectionSupport;
  64 import org.simantics.db.service.DirectQuerySupport;
  65 import org.simantics.db.service.SerialisationSupport;
  66 import org.simantics.graph.representation.Extensions;
  67 import org.simantics.graph.utils.TGResourceUtil;
  68 import org.simantics.graph.utils.TGResourceUtil.LongAdapter;
  69 import org.simantics.layer0.Layer0;
  70 import org.simantics.utils.threads.logger.ITask;
  71 import org.simantics.utils.threads.logger.ThreadLogger;
  72
  73 import gnu.trove.list.array.TIntArrayList;
  74 import gnu.trove.map.hash.TIntIntHashMap;
  75 import gnu.trove.map.hash.TLongObjectHashMap;
  76 import gnu.trove.procedure.TIntProcedure;
  77 import gnu.trove.procedure.TLongObjectProcedure;
  78 import gnu.trove.set.hash.TIntHashSet;
  79
  80 public class ModelTransferableGraphSourceRequest extends UniqueRead<ModelTransferableGraphSource> {
  81
  82         public static String LOG_FILE = "transferableGraph.log";
  83         final static boolean LOG = false;
  84         final static boolean PRINTDEBUG = false;
  85         final static boolean DEBUG = LOG | PRINTDEBUG;
  86         final static boolean PROFILE = false;
  87
  88         private TransferableGraphConfiguration2 configuration;
  89         private SubMonitor monitor;
  90
  91         static DataOutput log;
  92
  93         static {
  94
  95                 if (LOG) {
  96                         try {
  97                                 FileOutputStream stream = new FileOutputStream(LOG_FILE);
  98                                 log = new DataOutputStream(stream);
  99                         } catch (FileNotFoundException e) {
 100                                 e.printStackTrace();
 101                         }
 102                 }
 103
 104         }
 105
 106         static void log(String line) {
 107                 if (PRINTDEBUG) System.err.println(line);
 108                 if (LOG) {
 109                         try {
 110                                 if(line.length() > 500) line = line.substring(0, 500);
 111                                 log.writeUTF(line + "\n");
 112                         } catch (IOException e) {
 113                                 e.printStackTrace();
 114                         }
 115                 }
 116         }
 117
 118     public ModelTransferableGraphSourceRequest(TransferableGraphConfiguration2 conf) {
 119         this(null, conf);
 120     }
 121
 122     public ModelTransferableGraphSourceRequest(IProgressMonitor monitor, TransferableGraphConfiguration2 conf) {
 123         this.monitor = SubMonitor.convert(monitor);
 124         this.configuration = conf;
 125     }
 126
 127         Layer0 L0;
 128
 129         int statements[];
 130         int statementIndex = 0;
 131         TIntIntHashMap ids;
 132         TIntArrayList externalParents = new TIntArrayList();
 133         ArrayList<String> externalNames = new ArrayList<String>();
 134
 135         int id = 0;
 136         int indent = 0;
 137
 138         private SerialisationSupport support;
 139
 140         private Resource getResource(int r) throws DatabaseException {
 141                 return support.getResource(r);
 142         }
 143
 144         public int getInternalId(int r) {
 145                 return ids.get(r);
 146         }
 147
 148         public boolean validateExternal(Resource ext) {
 149                 ExtentStatus status = configuration.preStatus.get(ext);
 150                 if(status != null) {
 151                         if(ExtentStatus.INTERNAL.equals(status)) return false;
 152                         else if(ExtentStatus.EXCLUDED.equals(status)) return false;
 153                 }
 154                 return true;
 155         }
 156
 157         /*
 158          *
 159          * @return -2 if r is not really external and the statement should be excluded
 160          *
 161          */
 162         public int getId(ReadGraph graph, int r) throws DatabaseException {
 163                 if(ids.containsKey(r)) {
 164                     int ret = ids.get(r);
 165                     if(ret == -1) {
 166                         for(int i=0;i<=indent;++i)
 167                             System.out.print("  ");
 168                         System.out.println("Cycle!!!"); // with " + GraphUtils.getReadableName(g, r));
 169                     }
 170                         return ret;
 171                 }
 172                 else {
 173             if(!validateExternal(getResource(r))) return -2;
 174                         Collection<Resource> parents = graph.getObjects(getResource(r), L0.PartOf);
 175                         if(parents.size() != 1) {
 176                                 throw new ValidationException("Reference to external resource "
 177                                                 + NameUtils.getSafeName(graph, getResource(r), true) + " without unique uri (" + parents.size() + " parents).");
 178                         }
 179                         for(Resource p : parents) {
 180                             ++indent;
 181                             int pid = getId(graph, support.getTransientId(p));
 182                             if(pid == -2) return -2;
 183                                 externalParents.add(pid);
 184                                 --indent;
 185                         }
 186             externalNames.add((String)graph.getRelatedValue(getResource(r), L0.HasName));
 187                         ids.put(r, id);
 188                         return id++;
 189                 }
 190         }
 191
 192         @Override
 193         public ModelTransferableGraphSource perform(ReadGraph graph) throws DatabaseException {
 194
 195                 support = graph.getService(SerialisationSupport.class);
 196
 197                 this.L0 = Layer0.getInstance(graph);
 198
 199                 long total = System.nanoTime();
 200         long startupTime = System.nanoTime();
 201         long startupTimeEnd = System.nanoTime();
 202                 long domainTime = System.nanoTime();
 203
 204                 String otherStatements = "other" + UUID.randomUUID().toString();
 205                 String valueFileName = "value" + UUID.randomUUID().toString();
 206
 207                 File base_ = SimanticsInternal.getTemporaryDirectory();
 208         File base = new File(base_, "exports");
 209         base.mkdirs();
 210
 211         File otherStatementsFile = new File(base, otherStatements);
 212         File valueFile = new File(base, valueFileName);
 213
 214 //        System.err.println("f: " + otherStatementsFile.getAbsolutePath());
 215
 216         try {
 217                 DeferredFileOutputStream otherStatementsStream = new DeferredFileOutputStream(1024*1024, otherStatementsFile);
 218
 219                 DataOutputStream otherStatementsOutput = new DataOutputStream(new BufferedOutputStream(otherStatementsStream, 1024*1024));
 220                 DeferredBinaryFile valueOutput = new DeferredBinaryFile(valueFile, 1024*1024, 128*1024);
 221
 222                 ClusterControl cc = graph.getService(ClusterControl.class);
 223                 ClusterState clusterState = cc.getClusterState();
 224
 225                 TIntHashSet excludedShared = new TIntHashSet();
 226
 227                 ids = new TIntIntHashMap(1000, 0.75f);
 228
 229                 DomainProcessorState state = new DomainProcessorState();
 230                 state.extensions.putAll(configuration.baseExtensions);
 231                 state.ids = ids;
 232                 state.statementsOutput = otherStatementsOutput;
 233                 state.valueOutput = valueOutput;
 234                 state.valueCount = 0;
 235                 state.excludedShared = excludedShared;
 236             state.monitor = monitor;
 237             state.valueModifier = composeTGValueModifier(configuration.valueModifiers);
 238
 239                 getDomain2(graph, configuration, state, configuration.ignoreVirtualResources);
 240
 241                 id = ids.size();
 242
 243                 cc.restoreClusterState(clusterState);
 244
 245                 otherStatementsOutput.flush();
 246                 otherStatementsOutput.close();
 247
 248                 // Do not close valueOutput, just flush it and reuse it in
 249                 // ModelTransferableGraphSource for reading.
 250                 valueOutput.flush();
 251
 252                 long domainDuration = System.nanoTime() - domainTime;
 253
 254                 state.id = id;
 255             state.otherStatementsInput = toRandomAccessBinary(otherStatementsStream, 128*1024);
 256             state.valueInput = toRandomAccessBinary(valueOutput);
 257             state.statementsOutput = null;
 258             state.valueOutput = null;
 259
 260                 long totalEnd = System.nanoTime();
 261
 262                 if(PROFILE) {
 263                         System.out.println("startup in " + 1e-9*(startupTimeEnd - startupTime) + "s.");
 264                         System.out.println("domain was found in " + 1e-9*(domainDuration) + "s.");
 265                         System.out.println("total time for building subgraph was " + 1e-9*(totalEnd-total) + "s.");
 266                 }
 267
 268                 return getSource(graph, configuration, state, otherStatementsFile, valueFile);
 269
 270         } catch (DatabaseException e) {
 271                 throw e;
 272         } catch (IOException e) {
 273                 throw new DatabaseException(e.getMessage(), e);
 274         } catch (Throwable e) {
 275                 dumpHeap("crash.hprof");
 276                 throw new DatabaseException(e.getMessage(), e);
 277         }
 278
 279         }
 280
 281         protected ModelTransferableGraphSource getSource(ReadGraph graph, TransferableGraphConfiguration2 configuration, DomainProcessorState state, File otherStatementsFile, File valueFile) throws DatabaseException {
 282         return new ModelTransferableGraphSource(graph, configuration, state, otherStatementsFile, valueFile);
 283         }
 284
 285         private TGValueModifier composeTGValueModifier(Collection<TGValueModifier> configuredModifiers) {
 286                 List<TGValueModifier> valueModifiers = configuredModifiers == null ? new ArrayList<>(2) : new ArrayList<>(configuredModifiers.size() + 2);
 287                 valueModifiers.add(new ResourceTGValueModifier(support));
 288                 valueModifiers.add(RevisionTGValueModifier.INSTANCE);
 289                 return new ComposedTGValueModifier(valueModifiers.toArray(new TGValueModifier[valueModifiers.size()]));
 290         }
 291
 292     private static RandomAccessBinary toRandomAccessBinary(DeferredFileOutputStream stream, int bufferSize) throws IOException {
 293         if (stream.isInMemory())
 294             return new BinaryMemory(stream.getData());
 295         return new BinaryFile(stream.getFile(), bufferSize);
 296     }
 297
 298     private static RandomAccessBinary toRandomAccessBinary(DeferredBinaryFile file) throws IOException {
 299         RandomAccessBinary b = file.getBackend();
 300         long size = b.position();
 301         b.position(0);
 302         if (b instanceof BinaryMemory) {
 303             b.setLength(size);
 304         }
 305         return b;
 306     }
 307
 308         public static DomainOnlyProcessor getDomainOnly(RequestProcessor processor, IProgressMonitor monitor, final Resource resource) throws DatabaseException {
 309                 return getDomainOnly(processor, monitor, Collections.singletonList(resource));
 310         }
 311
 312         public static DomainOnlyProcessor getDomainOnly(RequestProcessor processor, final IProgressMonitor monitor, final Collection<Resource> resources) throws DatabaseException {
 313
 314                 return processor.syncRequest(new UniqueRead<DomainOnlyProcessor>() {
 315
 316                         @Override
 317                         public DomainOnlyProcessor perform(ReadGraph graph) throws DatabaseException {
 318
 319                                 try {
 320
 321                                         TransferableGraphConfiguration2 conf = TransferableGraphConfiguration2.createWithResources(graph, resources, Collections.<Resource>emptyList());
 322
 323                                         DomainProcessorState state = new DomainProcessorState();
 324                                         state.extensions.putAll(conf.baseExtensions);
 325                                         state.ids = new TIntIntHashMap(1000, 0.75f);
 326                                         state.statementsOutput = new DataOutputStream(new NullOutputStream());
 327                                         state.valueOutput = new NullRandomAccessBinary();
 328                                         state.valueCount = 0;
 329                                         state.excludedShared = new TIntHashSet();
 330                                         state.monitor = SubMonitor.convert(monitor);
 331
 332                                         return getDomainOnly(graph, conf, state, conf.ignoreVirtualResources);
 333
 334                                 } catch (OperationCanceledException e) {
 335
 336                                         return null;
 337
 338                                 }
 339
 340                         }
 341
 342                 });
 343
 344         }
 345
 346     public static class DomainOnlyProcessor extends DomainProcessor3 {
 347
 348         final Resource instanceOf;
 349         final public List<Resource> internals;
 350         final public List<Resource> internalTypes;
 351
 352         private int counter = 0;
 353
 354                 public DomainOnlyProcessor(ReadGraph graph, TransferableGraphConfiguration2 conf, DomainProcessorState state, boolean ignoreVirtual) throws DatabaseException {
 355                         super(graph, conf, state, ignoreVirtual);
 356                         CollectionSupport cs = graph.getService(CollectionSupport.class);
 357                         internals = cs.createList();
 358                         internalTypes = cs.createList();
 359                         instanceOf = Layer0.getInstance(graph).InstanceOf;
 360                 }
 361
 362                 @Override
 363                 final public void addToStream(Resource predicate, Resource object) throws DatabaseException {
 364                 }
 365
 366                 @Override
 367                 public void flushStatementStream(int sId, DomainProcessorState state) throws IOException {
 368                 }
 369
 370                 @Override
 371                 public void processValue(ReadGraph graph, Resource subject, int sId, DomainProcessorState state) throws DatabaseException, IOException {
 372                 }
 373
 374                 @Override
 375                 public void processInternal(ReadGraph graph, Resource subject, DirectStatements stms, DomainProcessorState state) throws DatabaseException, IOException {
 376
 377                         if((counter++ & 1023) == 0)
 378                                 if(state.monitor != null)
 379                                         if(state.monitor.isCanceled())
 380                                                 throw new CancelTransactionException();
 381
 382                         super.processInternal(graph, subject, stms, state);
 383
 384                         internals.add(subject);
 385
 386                         Resource singleType = null;
 387                         for(Statement s : stms) {
 388                                 if(instanceOf.equals(s.getPredicate())) {
 389                                         if(singleType != null) {
 390                                                 internalTypes.add(null);
 391                                                 return;
 392                                         } else {
 393                                                 singleType = s.getObject();
 394                                         }
 395                                 }
 396                         }
 397
 398                         internalTypes.add(singleType);
 399
 400                 }
 401
 402
 403     }
 404
 405         public static DomainOnlyProcessor getDomainOnly(final ReadGraph graph , final TransferableGraphConfiguration2 conf, DomainProcessorState state, boolean ignoreVirtual) throws DatabaseException {
 406
 407                 final DomainOnlyProcessor processor = new DomainOnlyProcessor(graph, conf, state, ignoreVirtual);
 408                 getDomain2(graph, state, processor);
 409                 return processor;
 410
 411         }
 412
 413     public static DomainProcessor3 getDomain2(final ReadGraph graph , final TransferableGraphConfiguration2 conf, DomainProcessorState state, boolean ignoreVirtual) throws DatabaseException {
 414
 415                 ITask task = ThreadLogger.getInstance().begin("getDomain2");
 416
 417                 final DomainProcessor3 processor = new DomainProcessor3(graph, conf, state, ignoreVirtual);
 418
 419                 getDomain2(graph, state, processor);
 420
 421                 final SerialisationSupport support = graph.getService(SerialisationSupport.class);
 422                 final ClusteringSupport cls = graph.getService(ClusteringSupport.class);
 423                 final Resource indexRoot = processor.conf.indexRoot;
 424
 425                 if (state.monitor.isCanceled())
 426                         throw new CancelTransactionException();
 427
 428                 TLongObjectHashMap<TIntArrayList> clusterMap = new TLongObjectHashMap<TIntArrayList>();
 429                 for(Resource r : processor.status.keySet()) {
 430                         ExtentStatus status = processor.status.get(r);
 431                         int transientId = support.getTransientId(r);
 432                         if(ExtentStatus.INTERNAL == status) {
 433                                 long cluster = cls.getCluster(r);
 434                                 TIntArrayList list = clusterMap.get(cluster);
 435                                 if(list == null) {
 436                                         list = new TIntArrayList();
 437                                         clusterMap.put(cluster, list);
 438                                 }
 439                                 list.add(transientId);
 440                         } else if(ExtentStatus.EXTERNAL == status) {
 441                                 state.externals.add(transientId);
 442                         } else if(ExtentStatus.PENDING == status) {
 443                                 String uri = graph.getPossibleURI(r);
 444                                 if(uri != null) {
 445                                         // All internal resources with uri have been discovered already => this must then be external
 446                                         //state.externals.add(transientId);
 447                                         // Pending resources are found through weak links - if they are still pending at this stage do not add an external
 448                                         processor.status.put(r, ExtentStatus.EXTERNAL);
 449                                 }
 450                                 else {
 451                                         state.pending.add(transientId);
 452                                         System.err.println("Pending status in export: " + NameUtils.getSafeName(graph, r, true) + " (" + graph.getPossibleURI(r) + ")");
 453                                 }
 454                         }
 455                 }
 456
 457                 // Now that we know the status of the resources lets process weak statements
 458                 for(Statement stm : processor.unresolvedWeakLinks) {
 459                         ExtentStatus status = processor.status.get(stm.getObject());
 460                         if(ExtentStatus.INTERNAL == status) {
 461                                 // Weak links between internals are exported
 462                                 int transientId = support.getTransientId(stm.getSubject());
 463                                 processor.addToStream(stm.getPredicate(), stm.getObject());
 464                                 try {
 465                                         processor.flushStatementStream(transientId, state);
 466                                 } catch (IOException e) {
 467                                         throw new DatabaseException(e);
 468                                 }
 469                         }
 470                 }
 471
 472                 if (state.monitor.isCanceled())
 473                         throw new CancelTransactionException();
 474
 475                 final TIntArrayList clustering = new TIntArrayList();
 476                 clusterMap.forEachEntry(new TLongObjectProcedure<TIntArrayList>() {
 477
 478                         @Override
 479                         public boolean execute(long cluster, TIntArrayList b) {
 480                                 clustering.add(b.size());
 481                                 b.forEach(new TIntProcedure() {
 482
 483                                         @Override
 484                                         public boolean execute(int rId) {
 485                                                 processor.ids.put(rId, processor.id++);
 486                                                 return true;
 487                                         }
 488
 489                                 });
 490                                 return true;
 491                         }
 492
 493                 });
 494
 495                 if (state.monitor.isCanceled())
 496                         throw new CancelTransactionException();
 497
 498                 final TIntArrayList clusterSets = new TIntArrayList();
 499                 clusterMap.forEachEntry(new TLongObjectProcedure<TIntArrayList>() {
 500
 501                         @Override
 502                         public boolean execute(long cluster, TIntArrayList b) {
 503                                 try {
 504                                         Resource clusterSet = cls.getClusterSetOfCluster(cluster);
 505                                         if(clusterSet != null) {
 506                                                 int transientId = support.getTransientId(clusterSet);
 507                                                 if(processor.ids.containsKey(transientId)) {
 508                                                         clusterSets.add(processor.ids.get(transientId));
 509                                                         return true;
 510                                                 } else {
 511                                                         if(graph.getRootLibrary().equals(clusterSet)) {
 512                                                                 clusterSets.add(Extensions.ROOT_LIBRARY_CLUSTER_SET);
 513                                                                 return true;
 514                                                         } else if (clusterSet.equals(indexRoot)) {
 515                                                                 clusterSets.add(Extensions.INDEX_ROOT_CLUSTER_SET);
 516                                                                 return true;
 517                                                         }
 518                                                 }
 519                                         }
 520                                 } catch (DatabaseException e) {
 521                                 }
 522                                 clusterSets.add(Extensions.NO_CLUSTER_SET);
 523                                 return true;
 524
 525                         }
 526
 527                 });
 528
 529                 state.extensions.put(Extensions.CLUSTERING, new Variant(Bindings.INT_ARRAY, clustering.toArray()));
 530                 state.extensions.put(Extensions.CLUSTER_SETS, new Variant(Bindings.INT_ARRAY, clusterSets.toArray()));
 531
 532                 long total = processor.startupTime + processor.expandTime
 533                                 + processor.classifyPredicateTime
 534                                 + processor.processFringeTime + processor.extentSeedTime
 535                                 + processor.fullResolveTime + processor.fastResolveTime +
 536                                 + processor.parentResolveTime + processor.otherStatementTime;
 537
 538                 if (PROFILE) {
 539                         System.out.println("startup took " + 1e-9 * processor.startupTime + "s.");
 540                         System.out.println("expand took " + 1e-9 * processor.expandTime + "s.");
 541                         System.out.println("classifyPredicates took " + 1e-9 * processor.classifyPredicateTime + "s.");
 542                         System.out.println("processFringe took " + 1e-9 * processor.processFringeTime + "s.");
 543                         System.out.println("extentSeeding took " + 1e-9 * processor.extentSeedTime + "s.");
 544                         System.out.println("fullResolve took " + 1e-9 * processor.fullResolveTime + "s.");
 545                         System.out.println("fastResolve took " + 1e-9 * processor.fastResolveTime + "s.");
 546                         System.out.println("parentResolve took " + 1e-9 * processor.parentResolveTime + "s.");
 547                         System.out.println("otherStatements took " + 1e-9 * processor.otherStatementTime + "s.");
 548                         System.out.println("value output took " + 1e-9 * processor.valueOutputTime + "s.");
 549                         System.out.println("statement output took " + 1e-9 * processor.statementOutputTime + "s.");
 550                         System.out.println("total " + 1e-9 * total + "s.");
 551                 }
 552
 553                 task.finish();
 554
 555                 return processor;
 556
 557         }
 558
 559         public static DomainProcessor3 getDomain2(final ReadGraph graph , DomainProcessorState state, final DomainProcessor3 processor) throws DatabaseException {
 560                 processor.process(graph, state);
 561                 return processor;
 562         }
 563
 564         static class Expansion3 extends UniqueRead<Collection<DirectStatements>> {
 565
 566                 final private Collection<Resource> roots;
 567                 final boolean ignoreVirtual;
 568
 569                 public Expansion3(Collection<Resource> roots, boolean ignoreVirtual) {
 570                         this.roots = roots;
 571                         this.ignoreVirtual = ignoreVirtual;
 572                 }
 573
 574                 @Override
 575                 public Collection<DirectStatements> perform(ReadGraph graph) {
 576
 577                         ArrayList<DirectStatements> result = new ArrayList<DirectStatements>();
 578
 579                         final DirectQuerySupport dqs = graph.getService(DirectQuerySupport.class);
 580
 581                         final DomainStatementProcedure3 proc = new DomainStatementProcedure3(result);
 582
 583                         if (ignoreVirtual) {
 584                                 for(Resource r : roots) {
 585                                         dqs.forEachDirectPersistentStatement(graph, r, proc);
 586                                 }
 587                         } else {
 588                                 for(Resource r : roots) {
 589                                         dqs.forEachDirectStatement(graph, r, proc);
 590                                 }
 591                         }
 592
 593                         return result;
 594
 595                 }
 596
 597         }
 598         private static void dumpHeap(String path) {
 599
 600         try {
 601             Object bean = getBean();
 602             if (bean == null)
 603                 return;
 604
 605             Method m = bean.getClass().getMethod("dumpHeap", String.class, boolean.class);
 606             m.invoke(bean, path, true);
 607
 608         } catch (IllegalArgumentException e) {
 609         } catch (IllegalAccessException e) {
 610         } catch (SecurityException e) {
 611         } catch (NoSuchMethodException e) {
 612         } catch (InvocationTargetException e) {
 613                 } finally {
 614         }
 615
 616         }
 617
 618     private static Object getBean() {
 619         Class<?> beanClass = getBeanClass();
 620         if (beanClass == null)
 621             return null;
 622         try {
 623             Object bean = ManagementFactory.newPlatformMXBeanProxy(
 624                     ManagementFactory.getPlatformMBeanServer(),
 625                     "com.sun.management:type=HotSpotDiagnostic",
 626                     beanClass);
 627             return bean;
 628         } catch (IOException e) {
 629             return null;
 630         }
 631     }
 632
 633     private static Class<?> getBeanClass() {
 634         try {
 635             Class<?> clazz = Class.forName("com.sun.management.HotSpotDiagnosticMXBean");
 636             return clazz;
 637         } catch (ClassNotFoundException e) {
 638             return null;
 639         }
 640     }
 641
 642     public static void main(String[] args) {
 643
 644         try {
 645
 646                         Datatype dt = Datatypes.translate("{ parts : ( | ResourceRVIPart { role : |CHILD|PROPERTY, resource : Long(unit=\"resource\") } | StringRVIPart { role : |CHILD|PROPERTY, string : String } ) [] }");
 647                         Binding b = Bindings.getBinding(dt);
 648                         Object value = b.createDefault();
 649                         Variant variant = new Variant(b, value);
 650                         TGResourceUtil util = new TGResourceUtil();
 651                         LongAdapter la = new LongAdapter() {
 652                                 @Override
 653                                 public long adapt(long in) {
 654                                         return in;
 655                                 }
 656                         };
 657                         util.adaptValue( variant.getBinding(), variant.getValue(), la );
 658
 659                 } catch (DataTypeSyntaxError e) {
 660                         e.printStackTrace();
 661                 } catch (BindingException e) {
 662                         e.printStackTrace();
 663                 } catch (RuntimeSerializerConstructionException e) {
 664                         e.printStackTrace();
 665                 } catch (AccessorException e) {
 666                         e.printStackTrace();
 667                 }
 668
 669         }
 670
 671
 672 }