bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/DomainStatementProcedure.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.util.Collection;
  15
  16 import org.simantics.db.AsyncReadGraph;
  17 import org.simantics.db.DirectStatements;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.Statement;
  20 import org.simantics.db.procedure.AsyncMultiProcedure;
  21 import org.simantics.db.procedure.AsyncProcedure;
  22 import org.simantics.db.service.DirectQuerySupport;
  23 import org.simantics.db.service.StatementSupport;
  24 import org.simantics.layer0.Layer0;
  25
  26 final public class DomainStatementProcedure implements AsyncProcedure<DirectStatements> {
  27
  28         final private DirectQuerySupport dqs;
  29         final private StatementSupport s;
  30         final private Layer0 l0;
  31         final private Collection<DirectStatements>[] results;
  32         final private Collection<Resource>[] listElements;
  33
  34         public DomainStatementProcedure(DirectQuerySupport dqs, StatementSupport s, Layer0 l0, Collection<DirectStatements>[] results, Collection<Resource>[] listElements) {
  35                 this.dqs = dqs;
  36                 this.s = s;
  37                 this.l0 = l0;
  38                 this.results = results;
  39                 this.listElements = listElements;
  40         }
  41
  42         @Override
  43         public void execute(AsyncReadGraph graph, final DirectStatements ds) {
  44
  45                 int thread = graph.thread();
  46                 results[thread].add(ds);
  47
  48                 for(final Statement stm : ds) {
  49
  50                         if (s.isList(stm)) {
  51
  52                                 graph.forIsSubrelationOf(stm.getPredicate(), l0.HasNext, new AsyncProcedure<Boolean>() {
  53
  54                                         @Override
  55                                         public void execute(AsyncReadGraph graph, Boolean result) {
  56
  57                                                 if (result) {
  58
  59                                                         graph.forOrderedSet(stm.getSubject(),new AsyncMultiProcedure<Resource>() {
  60
  61                                                                 @Override
  62                                                                 public void exception(AsyncReadGraph graph,Throwable throwable) {
  63                                                                         throwable.printStackTrace();
  64                                                                 }
  65
  66                                                                 @Override
  67                                                                 public void execute(AsyncReadGraph graph, Resource item) {
  68                                                                         listElements[graph.thread()].add(item);
  69                                                                         //dqs.forEachDirectStatement(graph, item, DomainStatementProcedure.this);
  70                                                                 }
  71
  72                                                                 @Override
  73                                                                 public void finished(AsyncReadGraph graph) {
  74                                                                 }
  75
  76                                                         });
  77
  78                                                 }
  79
  80                                         }
  81
  82                                         @Override
  83                                         public void exception(AsyncReadGraph graph,Throwable throwable) {
  84                                                 throwable.printStackTrace();
  85                                         }
  86
  87                                 });
  88
  89                         }
  90
  91                 }
  92
  93         }
  94
  95         @Override
  96         public void exception(AsyncReadGraph graph, Throwable throwable) {
  97                 throwable.printStackTrace();
  98         }
  99
 100 }