]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TransferableGraphRequest.java
Clean up and support internal seed resources in tg export
[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / util / TransferableGraphRequest.java
diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TransferableGraphRequest.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TransferableGraphRequest.java
deleted file mode 100644 (file)
index 6b31692..0000000
+++ /dev/null
@@ -1,748 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-package org.simantics.db.layer0.util;
-
-import gnu.trove.list.array.TIntArrayList;
-
-import java.io.ByteArrayInputStream;
-import java.io.DataOutput;
-import java.io.DataOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentSkipListSet;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.apache.commons.io.output.DeferredFileOutputStream;
-import org.simantics.databoard.Bindings;
-import org.simantics.databoard.Databoard;
-import org.simantics.databoard.binding.mutable.Variant;
-import org.simantics.databoard.serialization.Serializer;
-import org.simantics.db.AsyncReadGraph;
-import org.simantics.db.ReadGraph;
-import org.simantics.db.Resource;
-import org.simantics.db.Statement;
-import org.simantics.db.common.StandardStatement;
-import org.simantics.db.common.utils.NameUtils;
-import org.simantics.db.exception.DatabaseException;
-import org.simantics.db.exception.ValidationException;
-import org.simantics.db.layer0.adapter.Instances;
-import org.simantics.db.layer0.adapter.SubgraphAdvisor;
-import org.simantics.db.layer0.adapter.SubgraphExtent;
-import org.simantics.db.layer0.adapter.SubgraphExtent.Classifier;
-import org.simantics.db.layer0.adapter.SubgraphExtent.ExtentStatus;
-import org.simantics.db.procedure.AsyncProcedure;
-import org.simantics.db.request.AsyncRead;
-import org.simantics.db.request.Read;
-import org.simantics.db.service.CollectionSupport;
-import org.simantics.db.service.QueryControl;
-import org.simantics.db.service.QueryControl.ControlProcedure;
-import org.simantics.db.service.SerialisationSupport;
-import org.simantics.graph.representation.External;
-import org.simantics.graph.representation.Identity;
-import org.simantics.graph.representation.Root;
-import org.simantics.graph.representation.TransferableGraph1;
-import org.simantics.graph.representation.Value;
-import org.simantics.layer0.Layer0;
-import org.simantics.operation.Layer0X;
-import org.simantics.utils.datastructures.Pair;
-import org.simantics.utils.datastructures.Triple;
-
-/**
- * IsComposedOf objects are always in domain
- * Ordered set elements are always in domain
- * r is in domain if for all statements (s, IsRelatedTo, r) s is in domain
- *
- * IsWeaklyRelatedTo statements where subject is in domain are only accepted if object is in domain or has URI
- * 
- * @deprecated in favor of {@link TransferableGraphRequest2}
- */
-public class TransferableGraphRequest implements Read<TransferableGraph1> {
-
-       public static String LOG_FILE = "transferableGraph.log";
-       final static private boolean LOG = false;
-       final static private boolean DEBUG = false;
-       final static private boolean PROFILE = false;
-       
-//     final private Collection<Pair<Resource, String>> roots;
-//     private Collection<Resource> preExternals = Collections.emptyList();
-//     private Resource model;
-       
-       private TransferableGraphConfiguration configuration;
-       
-       static DataOutput log;
-
-       static {
-
-               if (LOG) {
-                       try {
-                               FileOutputStream stream = new FileOutputStream(LOG_FILE);
-                               log = new DataOutputStream(stream);
-                       } catch (FileNotFoundException e) {
-                               e.printStackTrace();
-                       }
-               }
-
-       }
-       
-       private static void log(String line) {
-               if (LOG) {
-                       try {
-                               log.writeUTF(line + "\n");
-                       } catch (IOException e) {
-                               e.printStackTrace();
-                       }
-               }
-       }
-       
-       
-       
-       public TransferableGraphRequest(Collection<Pair<Resource, String>> roots, Resource model) {
-               
-               configuration = new TransferableGraphConfiguration();
-               configuration.roots = roots;
-               configuration.model = model;
-               
-//             this.roots = roots;
-//             this.model = model;
-               
-       }
-
-       
-       public TransferableGraphRequest(Collection<Pair<Resource, String>> roots) {
-               this(roots, null);
-       }
-
-       public TransferableGraphRequest(TransferableGraphConfiguration conf) {
-               this.configuration = conf;
-       }
-
-       Layer0 l0;
-       
-       TIntArrayList inverses = new TIntArrayList();
-       int statements[];
-       int statementIndex = 0;
-       Map<Resource, Integer> ids;
-       Map<Resource, Variant> values;
-       TIntArrayList externalParents = new TIntArrayList();
-       ArrayList<String> externalNames = new ArrayList<String>(); 
-//     ConcurrentLinkedQueue<Pair<Resource, byte[]>> values = new ConcurrentLinkedQueue<Pair<Resource, byte[]>>();
-       int id = 0;
-       int internalCount;
-       
-       int indent = 0;
-
-       private Serializer variantSerializer;
-
-       private boolean validateExternal(Resource r) {
-               if(configuration.disallowedExternals != null) {
-                       System.err.println("validateExternal agains " + configuration.disallowedExternals);
-                       return !configuration.disallowedExternals.contains(r);
-               }
-               return true;
-       }
-       
-       public int getId(ReadGraph graph, Resource r, Resource predicate) throws DatabaseException {
-//         for(int i=0;i<indent;++i)
-//             System.out.print("  ");
-//         System.out.println(NameUtils.getSafeName(graph, r));
-               if(ids.containsKey(r)) {
-                   int ret = ids.get(r);
-                   if(ret == -1) {
-                       for(int i=0;i<=indent;++i)
-                           System.out.print("  ");
-                       System.out.println("Cycle!!!"); // with " + GraphUtils.getReadableName(g, r));
-                   }
-                       return ret;
-               }
-               else {
-                   //ids.put(r, -1);
-                       Collection<Resource> parents = graph.getObjects(r, l0.PartOf);                  
-                       if(parents.size() != 1) {
-                           if(parents.size() == 0) {
-                               Resource inv = graph.getPossibleObject(r, l0.InverseOf);
-                               if(inv != null) {                       
-                                   ++indent;
-                                   if(DEBUG) System.out.println("inverse " + NameUtils.getSafeName(graph, inv));
-                                   int invId = getId(graph, inv, null);
-                                   externalParents.add(invId);
-                                   --indent;
-                                   externalNames.add("@inverse");
-                                   ids.put(r, id);
-                                   return id++;
-                               }
-                           }
-//                         for(Statement stat : graph.getStatements(r, b.IsWeaklyRelatedTo))
-//                             System.out.println(NameUtils.getSafeName(graph, stat.getPredicate()) 
-//                                 + " -> " + NameUtils.getSafeName(graph, stat.getObject()));
-//                         if(predicate != null) {
-//                             if(!graph.isSubrelationOf(predicate, b.IsRelatedTo)) {
-//                                     return -2;
-//                             }
-//                         }
-                               throw new ValidationException("Reference to external resource " 
-                                               + NameUtils.getSafeName(graph, r, true) + " without unique uri (" + parents.size() + " parents).");
-                       }
-                       for(Resource p : parents) {
-//                 System.out.println("Parent " + NameUtils.getSafeName(graph, p)); 
-                           ++indent;
-                   if(!validateExternal(p)) throw new ValidationException("References to '" + graph.getURI(p) + "' are not allowed.");
-                               externalParents.add(getId(graph, p, null));
-                               --indent;
-                       }
-//          System.out.println("Request named for " + GraphUtils.getReadableName(g, r)); 
-//                     String name = graph.getPossibleRelatedValue(r, b.HasName);
-            externalNames.add((String)graph.getRelatedValue(r, l0.HasName));
-//                     if(name != null) externalNames.add(name);
-//                     else externalNames.add("@resource");
-                       ids.put(r, id);
-                       return id++;
-               }
-       }
-       
-       public void addId(ReadGraph graph, Resource r, Resource predicate) throws DatabaseException {
-               statements[statementIndex++] = getId(graph, r, predicate); 
-       }
-       
-       private void searchStatementPart(ReadGraph graph, final ConcurrentSkipListSet<Statement> statementSet, final ArrayList<Pair<Resource, Triple[]>> part, final Set<SubgraphExtent> extents) throws DatabaseException {
-
-               final SubgraphExtent.Callback callback = new SubgraphExtent.Callback() {
-
-                       @Override
-                       public void statement(Statement statement, boolean accept) {
-                               if(accept) {
-                                       statementSet.add(statement);
-                               }
-                       }
-                       
-               };
-
-               graph.syncRequest(new AsyncRead<Boolean>() {
-
-                   @Override
-                   public int threadHash() {
-                       return hashCode();
-                   }
-                       
-                       @Override
-                       public void perform(AsyncReadGraph graph, AsyncProcedure<Boolean> procedure) {
-
-                               QueryControl control = graph.getService(QueryControl.class);
-
-                               int slice = (int)(part.size() / control.getAmountOfQueryThreads()) + 1;
-
-                               final Pair[] rootArray = (Pair[])part.toArray(new Pair[part.size()]);
-                               for(int i=0;i<control.getAmountOfQueryThreads();i++) {
-
-                                       final int start = i * slice;
-                                       final int end = Math.min(start + slice, rootArray.length);
-
-                                       control.schedule(graph, i, new ControlProcedure() {
-
-                                               @Override
-                                               public void execute(AsyncReadGraph graph) {
-
-                                                       for(int index = start;index < end;index++) {
-
-                                                               final Pair<Resource, Triple[]> r = (Pair<Resource, Triple[]>)rootArray[index];
-
-                                                               final AtomicInteger position = new AtomicInteger(0);
-                                                               final SubgraphExtent.Classifier[] classifiers = new SubgraphExtent.Classifier[extents.size()];
-
-                                                               for(SubgraphExtent extent : extents) {
-
-                                                                       extent.accept(graph, r.first, new AsyncProcedure<Classifier>() {
-
-                                                                               public void execute(AsyncReadGraph graph, Classifier c) {
-
-                                                                                       int current = position.incrementAndGet();
-                                                                                       classifiers[current-1] = c;
-
-                                                                                       if(current == extents.size()) {
-
-                                                                                               for(Triple statement : r.second) {
-                                                                                                       if(!r.first.isPersistent()) continue;
-                                                                                                       for(Classifier classifier : classifiers) {
-                                                                                                               classifier.classify(graph, new StandardStatement(r.first, (Resource)statement.first, (Resource)statement.second), (ExtentStatus)statement.third, callback);
-                                                                                                       }
-                                                                                               }
-                                                                                               
-//                                                                                             graph.forEachDirectStatement(r, new AsyncMultiProcedure<Statement>() {
-//
-//                                                                                                     @Override
-//                                                                                                     public void exception(AsyncReadGraph graph, Throwable throwable) {
-//                                                                                                             throwable.printStackTrace();
-//                                                                                                     }
-//
-//                                                                                                     @Override
-//                                                                                                     public void execute(AsyncReadGraph graph, Statement statement) {
-//                                                                                                     }
-//
-//                                                                                                     @Override
-//                                                                                                     public void finished(AsyncReadGraph graph) {
-//                                                                                                     }
-//
-//                                                                                             });
-
-                                                                                       }
-
-                                                                               }
-
-                                                                               public void exception(AsyncReadGraph graph, Throwable throwable) {
-                                                                                       throwable.printStackTrace();
-                                                                               }
-
-                                                                       }, callback);
-
-                                                               }
-
-                                                       }
-
-                                               }
-
-                                       });
-
-                               }
-
-                               procedure.execute(graph, false);
-
-                       }
-
-                       @Override
-                       public int getFlags() {
-                               return 0;
-                       }
-
-               });
-
-       }
-
-       class StatementSetBuilder {
-
-               private int SLICE = 100000;
-               
-               final private CollectionSupport cs;
-               final private LinkedList<Collection<Statement>> sets = new LinkedList<Collection<Statement>>();
-
-               private Collection<Statement> current;
-               
-               StatementSetBuilder(CollectionSupport cs) {
-                       this.cs = cs;
-                       current = cs.createStatementList();
-               }
-               
-               LinkedList<Collection<Statement>> get() {
-                       sets.add(current);
-                       return sets;
-               }
-               
-               void add(Statement stm) {
-                       current.add(stm);
-                       if(current.size() == SLICE) {
-                               sets.add(current);
-                               current = cs.createStatementList();
-                       }
-               }
-
-               int size() {
-                       int result = 0;
-                       for(Collection<Statement> c : sets) result += c.size();
-                       return result;
-               }
-               
-               
-               void addAll(Collection<Statement> ss) {
-                       for(Statement s : ss) add(s);
-               }
-               
-       }
-       
-       private void searchStatements(ReadGraph graph, ObjectInputStream composedInput, ObjectInputStream statementInput, ObjectInputStream valueInput, final Set<SubgraphExtent> extents) throws DatabaseException, IOException {
-
-               CollectionSupport cs = graph.getService(CollectionSupport.class);
-               
-               ConcurrentSkipListSet<Statement> statementSet = new ConcurrentSkipListSet<Statement>();
-
-               StatementSetBuilder builder = new StatementSetBuilder(cs);
-
-               SerialisationSupport support = graph.getService(SerialisationSupport.class);
-
-               while(composedInput.available() > 0) {
-
-                       int s = composedInput.readInt();
-                       Resource subject = support.getResource(s);
-
-                       int size = composedInput.readInt();
-                       for(int i=0;i<size;i++) {
-                               int p = composedInput.readInt();
-                               int o = composedInput.readInt();
-                               StandardStatement stm = new StandardStatement(subject, support.getResource(p), support.getResource(o));
-//                             if(DEBUG) System.out.println("composed " + NameUtils.toString(graph, stm));
-                               builder.add(stm);
-                       }
-                       
-               }
-
-               while(statementInput.available() > 0) {
-
-                       ArrayList<Pair<Resource, Triple[]>> stms = new ArrayList<Pair<Resource, Triple[]>>(); 
-
-                       int counter = 0;
-                       
-                       while(statementInput.available() > 0 && counter++ < 1000) {
-                       
-                               int s = statementInput.readInt();
-                               Resource subject = support.getResource(s);
-                               int size = statementInput.readInt();
-                               Triple[] list = new Triple[size];
-                               stms.add(Pair.make(subject, list));
-                               for(int i=0;i<size;i++) {
-                                       int p = statementInput.readInt();
-                                       int o = statementInput.readInt();
-                                       if(DEBUG) {
-                                               System.out.println("otherInput " + NameUtils.toString(graph, new StandardStatement(support.getResource(s), support.getResource(p), support.getResource(o))));
-                                       }
-                                       list[i] = new Triple<Resource, Resource, ExtentStatus>(support.getResource(p), support.getResource(o), ExtentStatus.EXTERNAL);
-                               }
-                       }
-                       
-                       searchStatementPart(graph, statementSet, stms, extents);
-                       
-               }
-
-               if(DEBUG) {
-                       for(Statement stm : statementSet)
-                               System.out.println("other " + NameUtils.toString(graph, stm));
-               }
-               
-               builder.addAll(statementSet);
-               
-               if(DEBUG) System.out.println("total " + statementSet.size() + " statements found.");
-
-               statementSet = null;
-               
-               LinkedList<Collection<Statement>> statementSets = builder.get();
-               
-               Map<Resource, Resource> inverses = cs.createMap(Resource.class);
-               Set<Resource> predicateSet = cs.createSet();
-               for(Collection<Statement> set : statementSets)
-                       for(Statement s : set) {
-                               Resource predicate = s.getPredicate();
-                               if(predicateSet.add(predicate)) {
-                                       Resource inverse = graph.getPossibleInverse(predicate);
-                                       inverses.put(predicate, inverse);
-                               }
-                       }
-
-               predicateSet = null;
-               
-               statements = new int[4 * builder.size()];
-               
-        while(!statementSets.isEmpty()) {
-               Collection<Statement> set = statementSets.pop();
-                       for(Statement s : set) {
-                               Resource subject = s.getSubject();
-                               Resource predicate = s.getPredicate();
-                               Resource object = s.getObject();
-                               int subjectId = ids.get(subject);
-                               int objectId = getId(graph, object, predicate);
-                               // The statement can be denied still
-                               if(objectId != -2) {
-                                       statements[statementIndex++] = subjectId;
-                                       addId(graph, predicate, null);
-                                       Resource inverse = inverses.get(predicate);
-                                       if(inverse != null) {
-                                               if(LOG) log("[STM] " + subject.getResourceId() + ", " + predicate.getResourceId() + ", " + inverse.getResourceId() + ", " + object.getResourceId());
-                                               addId(graph, inverse, null);
-                                       } else {
-                                               if(LOG) log("[STM] " + subject.getResourceId() + ", " + predicate.getResourceId() + ", -1, " + object.getResourceId());
-                                               statements[statementIndex++] = -1;
-                                       }
-                                       statements[statementIndex++] = objectId;
-                                       
-                                       
-                                       
-                               } else {
-                                       System.out.println("denied");
-                               }
-                       }
-               }
-               
-               inverses = null;
-               
-               while(valueInput.available() > 0) {
-
-                       int s = valueInput.readInt();
-                       Resource subject = support.getResource(s);
-                       int valueSize = valueInput.readInt();
-                       byte[] value = new byte[valueSize];
-                       valueInput.readFully(value);
-                       Variant variant = (Variant) variantSerializer.deserialize(value);
-                       values.put(subject, variant);
-                       
-               }
-               
-       }
-       
-       public void setExternals(Collection<Resource> rs) {
-               configuration.externals = rs;
-       }
-       
-       @Override
-       public TransferableGraph1 perform(ReadGraph graph) throws DatabaseException {
-
-               this.variantSerializer = graph.getService(Databoard.class).getSerializerUnchecked(Bindings.VARIANT);
-
-               this.l0 = Layer0.getInstance(graph);
-               Layer0X L0X = Layer0X.getInstance(graph);
-               
-               long total = System.nanoTime();
-
-       long startupTime = System.nanoTime();
-
-       CollectionSupport cs = graph.getService(CollectionSupport.class);
-       
-       ids = cs.createMap(Integer.class);
-       values = cs.createMap(byte[].class);
-       
-               ArrayList<Resource> rootResources = new ArrayList<Resource>();
-               for(Pair<Resource, String> p : configuration.roots) rootResources.add(p.first);
-
-//             if(model == null) {
-//                     SimulationResource SIMU = SimulationResource.getInstance(graph);
-//                     for(Resource root : rootResources) {
-//                             if(graph.isInstanceOf(root, SIMU.Model)) {
-//                                     model = root;
-//                                     break;
-//                             }
-//                             model = graph.syncRequest(new TypedParent(root, SIMU.Model));
-//                             if(model != null) break;
-//                     }
-//             }
-
-               Map<Resource, ExtentStatus> preStatus = new HashMap<Resource, ExtentStatus>();
-               
-               for(Resource root : rootResources) {
-                       Resource name = graph.getPossibleObject(root, l0.HasName);
-                       if(name != null) {
-                               preStatus.put(name, ExtentStatus.EXCLUDED);
-                       }
-               }
-               
-               for(Resource r : configuration.externals) preStatus.put(r, ExtentStatus.EXTERNAL); 
-
-               Set<SubgraphExtent> extents = configuration.extents;
-               if(extents == null) {
-                       
-                       Instances extentInstances = graph.adapt(L0X.SubgraphExtent, Instances.class);
-                       Collection<Resource> extentResources = extentInstances.find(graph, configuration.model);
-                       extents = new HashSet<SubgraphExtent>();
-                       for(Resource r : extentResources) {
-                               extents.add(graph.getPossibleAdapter(r, SubgraphExtent.class));
-                       }
-
-                       if(DEBUG) {
-                               System.out.println("Extents " + extents.size());
-                               for(Resource extent : extentResources) System.out.println("-" + NameUtils.getSafeName(graph, extent));
-                       }
-                       
-               }
-               
-               Set<SubgraphAdvisor> advisors = configuration.advisors;
-               if(advisors == null) {
-
-                       Instances advisorInstances = graph.adapt(L0X.SubgraphAdvisor, Instances.class);
-                       Collection<Resource> advisorResources = advisorInstances.find(graph, configuration.model);
-                       advisors = new HashSet<SubgraphAdvisor>();
-                       for(Resource r : advisorResources) {
-                               advisors.add(graph.getPossibleAdapter(r, SubgraphAdvisor.class));
-                       }
-
-                       if(DEBUG) {
-                               System.out.println("Advisors " + advisors.size());
-                               for(Resource advisor : advisorResources) System.out.println("-" + NameUtils.getSafeName(graph, advisor));
-                       }
-                       
-               }
-
-       long startupTimeEnd = System.nanoTime();
-
-               long domainTime = System.nanoTime();
-               
-               String composedStatements = "composed" + UUID.randomUUID().toString();
-               String otherStatements = "other" + UUID.randomUUID().toString();
-               String valueFileName = "value" + UUID.randomUUID().toString();
-               
-        File composedStatementsFile = new File(composedStatements);
-        File otherStatementsFile = new File(otherStatements);
-        File valueFile = new File(valueFileName);
-        
-        if(DEBUG)
-               System.out.println("getDomain writes " + composedStatementsFile.getAbsolutePath());
-
-        try {
-        
-               DeferredFileOutputStream composedStatementsStream = new DeferredFileOutputStream(5 * 1024*1024, composedStatementsFile);
-               DeferredFileOutputStream otherStatementsStream = new DeferredFileOutputStream(1024*1024, otherStatementsFile);
-               DeferredFileOutputStream valueStream = new DeferredFileOutputStream(1024*1024, valueFile);
-               
-               ObjectOutputStream composedStatementsOutput = new ObjectOutputStream(composedStatementsStream);
-               ObjectOutputStream otherStatementsOutput = new ObjectOutputStream(otherStatementsStream);
-               ObjectOutputStream valueOutput = new ObjectOutputStream(valueStream);
-
-               Subgraphs.getDomain(graph, ids, rootResources, preStatus, advisors, composedStatementsOutput, otherStatementsOutput, valueOutput);
-               id = ids.size();
-
-               composedStatementsOutput.flush();
-               otherStatementsOutput.flush();
-               valueOutput.flush();
-               composedStatementsStream.close();
-               otherStatementsStream.close();
-               valueStream.close();
-               
-               long domainTimeEnd = System.nanoTime();
-
-               long fileTime = System.nanoTime();
-
-               internalCount = id;
-
-               ids.put(graph.getRootLibrary(), id++);
-               externalNames.add("http:/");
-               externalParents.add(-1);
-
-//             if(model == null) return null;
-
-               InputStream composedStatementsInputStream = null;
-               InputStream otherStatementsInputStream = null;
-               InputStream valueInputStream = null;
-               
-               if(composedStatementsStream.isInMemory()) {
-                       composedStatementsInputStream = new ByteArrayInputStream(composedStatementsStream.getData());
-               } else {
-                       composedStatementsInputStream = new FileInputStream(composedStatementsFile);
-               }
-               
-               if(otherStatementsStream.isInMemory()) {
-                       otherStatementsInputStream = new ByteArrayInputStream(otherStatementsStream.getData());
-               } else {
-                       otherStatementsInputStream = new FileInputStream(otherStatementsFile);
-               }
-
-               if(valueStream.isInMemory()) {
-                       valueInputStream = new ByteArrayInputStream(valueStream.getData());
-               } else {
-                       valueInputStream = new FileInputStream(valueFile);
-               }
-
-               composedStatementsStream = null;
-               otherStatementsStream = null;
-               valueStream = null;
-               
-               ObjectInputStream composedStatementsInput = new ObjectInputStream(composedStatementsInputStream);
-               ObjectInputStream otherStatementsInput = new ObjectInputStream(otherStatementsInputStream);
-               ObjectInputStream valueInput = new ObjectInputStream(valueInputStream);
-
-               long fileTimeEnd = System.nanoTime();
-
-               long statementTime = System.nanoTime();
-               searchStatements(graph, composedStatementsInput, otherStatementsInput, valueInput, extents);
-               long statementTimeEnd = System.nanoTime();
-
-               //              domainParts = null;
-
-               long buildTime = System.nanoTime();
-
-               int resourceCount = ids.size();
-
-               Identity[] identityArray;
-               { // Identities
-                       ArrayList<Identity> identities = new ArrayList<Identity>();
-
-                       for(Pair<Resource, String> r : configuration.roots) {
-                               Resource type = graph.getPossibleType(r.first, l0.Entity);
-                               if(type == null) type = l0.Entity;
-                               identities.add(new Identity(
-                                               ids.get(r.first),
-                                               new Root(r.second, graph.getURI(type))
-                               ));
-                       }
-
-                       int internalsPlusExternals = ids.size();                
-                       for(int i = internalCount; i < internalsPlusExternals ; i++) {
-                               int parent = externalParents.get(i - internalCount);
-                               String name = externalNames.get(i - internalCount);
-                               identities.add(new Identity(
-                                               i, 
-                                               new External(parent, name)
-                               ));
-                       }
-                       identityArray = identities.toArray(new Identity[identities.size()]);
-               }            
-
-               Value[] valueArray = new Value[values.size()];
-               { // Values
-                       int index = 0;
-                       for(Map.Entry<Resource, Variant> entry : values.entrySet()) {
-                               if(LOG) log("[VALUE] " + entry.getKey().getResourceId());
-                               int r = getId(graph, entry.getKey(), null);
-                               valueArray[index++] = new Value(r, entry.getValue());
-                       }
-               }
-               ids = null;
-               values = null;
-
-               long buildTimeEnd = System.nanoTime();
-
-               TransferableGraph1 result = 
-                   new TransferableGraph1(resourceCount, 
-                           identityArray, 
-                           statements, 
-                           valueArray);
-
-               if(DEBUG) {
-                       System.out.println("transferable graph content: " + result);
-               }
-
-               long totalEnd = System.nanoTime();
-
-               if(PROFILE) {   
-                       System.out.println("startup in " + 1e-9*(startupTimeEnd - startupTime) + "s.");
-                       System.out.println("domain was found in " + 1e-9*(domainTimeEnd - domainTime) + "s.");
-                       System.out.println("files were written in " + 1e-9*(fileTimeEnd - fileTime) + "s.");
-                       System.out.println("statements were found in " + 1e-9*(statementTimeEnd - statementTime) + "s.");
-                       System.out.println("tg was built in " + 1e-9*(buildTimeEnd - buildTime) + "s.");
-                       System.out.println("total time for building subgraph was " + 1e-9*(totalEnd-total) + "s.");
-               }               
-
-               return result;
-        } catch (IOException e) {
-               e.printStackTrace();
-        }
-               
-        return null;
-               
-       }
-       
-}