bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/TGRemover.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.adapter.impl;
  13
  14 import org.eclipse.core.runtime.IProgressMonitor;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.WriteGraph;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.layer0.util.ModelTransferableGraphSource;
  19 import org.simantics.db.layer0.util.ModelTransferableGraphSourceRequest;
  20 import org.simantics.db.layer0.util.TransferableGraphConfiguration2;
  21 import org.simantics.db.service.SerialisationSupport;
  22 import org.simantics.graph.db.TransferableGraphSource.TransferableGraphSourceProcedure;
  23
  24 /**
  25  * @author Tuukka Lehtonen
  26  */
  27 public class TGRemover extends AbstractRemover {
  28
  29     @SuppressWarnings("unused")
  30     private IProgressMonitor monitor;
  31
  32     public TGRemover(Resource resource) {
  33         super(resource);
  34     }
  35
  36     public TGRemover(IProgressMonitor monitor, Resource resource) {
  37         super(resource);
  38         this.monitor = monitor;
  39     }
  40
  41     @Override
  42     public void remove(final WriteGraph graph) throws DatabaseException {
  43
  44         TransferableGraphConfiguration2 conf = new TransferableGraphConfiguration2(graph, resource);
  45         conf.values = false;
  46         ModelTransferableGraphSource source = graph.syncRequest(new ModelTransferableGraphSourceRequest(conf));
  47         final SerialisationSupport ss = graph.getService(SerialisationSupport.class);
  48
  49         try {
  50                         source.forResourceStatements(graph, new TransferableGraphSourceProcedure<int[]>() {
  51
  52                                 @Override
  53                                 public void execute(int[] value) throws Exception {
  54                                         Resource s = ss.getResource(value[0]);
  55                                         Resource p = ss.getResource(value[1]);
  56                                         Resource i = null;
  57                                         if(value[2] != -1) i = ss.getResource(value[2]);
  58                                         Resource o = ss.getResource(value[3]);
  59
  60 //                                      System.err.println("s=" + s + " p=" + graph.getPossibleURI(p) + " o=" + o + " p:" + p + " i:" + i);
  61
  62                                         graph.deny(s,p,i,o);
  63                                 }
  64
  65                         });
  66
  67                         source.forValueResources(graph, new TransferableGraphSourceProcedure<int[]>() {
  68
  69                                 @Override
  70                                 public void execute(int[] value) throws Exception {
  71                                         Resource s = ss.getResource(value[0]);
  72 //                                      System.err.println("s=" + s + " p=" + graph.getPossibleURI(p) + " o=" + o + " " + i);
  73                                         graph.denyValue(s);
  74                                 }
  75
  76                         });
  77
  78                         source.closeStreams();
  79
  80                 } catch (Exception e) {
  81                         throw new DatabaseException(e);
  82                 }
  83
  84     }
  85
  86 }