bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/TripletInstruction.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.mapping.constraint.instructions;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.WriteGraph;
  17 import org.simantics.db.common.utils.NameUtils;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.mapping.IContextualModification;
  20
  21 public class TripletInstruction extends Instruction3 {
  22
  23         public TripletInstruction(int variable0, int variable1, int variable2) {
  24                 super(variable0, variable1, variable2);
  25         }
  26
  27         @Override
  28         public IContextualModification claim(ReadGraph g, Object[] bindings) throws DatabaseException {
  29                 Resource r0 = (Resource)bindings[variable0];
  30                 Resource r1 = (Resource)bindings[variable1];
  31                 Resource r2 = (Resource)bindings[variable2];
  32 //              ITask task = ThreadLogger.getInstance().begin("g");
  33                 if(!g.hasStatement(r0, r1, r2)) {
  34 //                      task.finish();
  35                         return new IContextualModification() {
  36
  37                                 @Override
  38                                 public void perform(WriteGraph g, Object[] bindings) throws DatabaseException {
  39                                         Resource r0 = (Resource)bindings[variable0];
  40                                         Resource r1 = (Resource)bindings[variable1];
  41                                         Resource r2 = (Resource)bindings[variable2];
  42                                         if(DEBUG_MODI)
  43                         System.out.println("claim(" +
  44                                 NameUtils.getSafeName(g, r0) + ", " +
  45                                 NameUtils.getSafeName(g, r1) + ", " +
  46                                 NameUtils.getSafeName(g, r2) + ")"
  47                                 );
  48                                         if(!DISABLE_MODI)
  49                                                 g.claim(r0, r1, r2);
  50                                 }
  51
  52                         };
  53                 }
  54 //              task.finish();
  55                 return null;
  56         }
  57
  58         @Override
  59         public void doClaim(WriteGraph g, Object[] bindings) throws DatabaseException {
  60                 Resource r0 = (Resource)bindings[variable0];
  61                 Resource r1 = (Resource)bindings[variable1];
  62                 Resource r2 = (Resource)bindings[variable2];
  63                 if(DEBUG) {
  64                 System.out.println("@ claim(" +
  65                     NameUtils.getSafeName(g, r0) + ", " +
  66                     NameUtils.getSafeName(g, r1) + ", " +
  67                     NameUtils.getSafeName(g, r2) + ")");
  68                 }
  69                 if(DEBUG_MODI)
  70             System.out.println("claim(" +
  71                     NameUtils.getSafeName(g, r0) + ", " +
  72                     NameUtils.getSafeName(g, r1) + ", " +
  73                     NameUtils.getSafeName(g, r2) + ")"
  74                     );
  75 //              ITask task = ThreadLogger.getInstance().begin("g");
  76                 if(!DISABLE_MODI)
  77                         g.claim(r0, r1, r2);
  78 //              task.finish();
  79         }
  80
  81         @Override
  82         public IContextualModification deny(ReadGraph g, Object[] bindings) throws DatabaseException {
  83                 Resource r0 = (Resource)bindings[variable0];
  84                 Resource r1 = (Resource)bindings[variable1];
  85                 Resource r2 = (Resource)bindings[variable2];
  86                 if(g.hasStatement(r0, r1, r2))
  87                         return new IContextualModification() {
  88
  89                                 @Override
  90                                 public void perform(WriteGraph g, Object[] bindings) throws DatabaseException {
  91                                         Resource r0 = (Resource)bindings[variable0];
  92                                         Resource r1 = (Resource)bindings[variable1];
  93                                         Resource r2 = (Resource)bindings[variable2];
  94                                         if(DEBUG_MODI)
  95                         System.out.println("deny(" +
  96                                 NameUtils.getSafeName(g, r0) + ", " +
  97                                 NameUtils.getSafeName(g, r1) + ", " +
  98                                 NameUtils.getSafeName(g, r2) + ")"
  99                                 );
 100                                         if(!DISABLE_MODI)
 101                                                 g.denyStatement(r0, r1, r2);
 102                                 }
 103
 104                         };
 105                 return null;
 106         }
 107
 108         @Override
 109         public void doDeny(WriteGraph g, Object[] bindings) throws DatabaseException {
 110                 Resource r0 = (Resource)bindings[variable0];
 111                 Resource r1 = (Resource)bindings[variable1];
 112                 Resource r2 = (Resource)bindings[variable2];
 113                 if(DEBUG) {
 114                 System.out.println("deny(" +
 115                         NameUtils.getSafeName(g, r0) + ", " +
 116                         NameUtils.getSafeName(g, r1) + ", " +
 117                         NameUtils.getSafeName(g, r2) + ")");
 118                 }
 119                 if(DEBUG_MODI)
 120             System.out.println("deny(" +
 121                     NameUtils.getSafeName(g, r0) + ", " +
 122                     NameUtils.getSafeName(g, r1) + ", " +
 123                     NameUtils.getSafeName(g, r2) + ")"
 124                     );
 125                 if(!DISABLE_MODI)
 126                         g.denyStatement(r0, r1, r2);
 127         }
 128
 129         @Override
 130         public Object next(ReadGraph g, Object[] bindings, Object continuation) throws DatabaseException {
 131                 return IInstruction.FAILURE;
 132         }
 133
 134         @Override
 135         public Object query(ReadGraph g, Object[] bindings) throws DatabaseException {
 136                 Resource r0 = (Resource)bindings[variable0];
 137                 Resource r1 = (Resource)bindings[variable1];
 138                 Resource r2 = (Resource)bindings[variable2];
 139                 if(DEBUG) {
 140                 System.out.print("hasStatement(" +
 141                     NameUtils.getSafeName(g, r0) + ", " +
 142                     NameUtils.getSafeName(g, r1) + ", " +
 143                     NameUtils.getSafeName(g, r2) + ")");
 144                 }
 145                 if(g.hasStatement(r0, r1, r2)) {
 146                     if(DEBUG)
 147                         System.out.println(" -> true");
 148                         return null;
 149                 }
 150                 else {
 151                     if(DEBUG)
 152                         System.out.println(" -> false");
 153                         return IInstruction.FAILURE;
 154                 }
 155         }
 156
 157         @Override
 158         public void toString(StringBuilder b, int indent) {
 159                 b.append('<');
 160                 b.append(variable0);
 161                 b.append(',');
 162                 b.append(variable1);
 163                 b.append(',');
 164                 b.append(variable2);
 165                 b.append('>');
 166         }
 167 }