bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/PrintStateInstruction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.mapping.constraint.instructions;\r
  13 \r
  14 import gnu.trove.map.hash.TIntIntHashMap;\r
  15 import gnu.trove.set.hash.TIntHashSet;\r
  16 \r
  17 import org.simantics.db.ReadGraph;\r
  18 import org.simantics.db.WriteGraph;\r
  19 import org.simantics.mapping.IContextualModification;\r
  20 \r
  21 public class PrintStateInstruction implements IInstruction {\r
  22         String position;\r
  23 \r
  24         public PrintStateInstruction(String position) {\r
  25                 this.position = position;\r
  26         }\r
  27         \r
  28         private void print(ReadGraph g, Object[] bindings) {\r
  29                 System.out.print(position + ": ");\r
  30                 boolean first = true;\r
  31                 for(Object obj : bindings) {\r
  32                         if(first)\r
  33                                 first = false;\r
  34                         else\r
  35                                 System.out.print(", ");\r
  36                         System.out.print(obj);\r
  37                 }\r
  38                 System.out.println();\r
  39         }\r
  40         \r
  41         @Override\r
  42         public Object query(ReadGraph g, Object[] bindings) {\r
  43                 print(g, bindings);\r
  44                 return null;\r
  45         }\r
  46         \r
  47         @Override\r
  48         public Object next(ReadGraph g, Object[] bindings, Object continuation) {               \r
  49                 return IInstruction.FAILURE;\r
  50         }       \r
  51 \r
  52         @Override\r
  53         public IContextualModification claim(ReadGraph g, Object[] bindings) {\r
  54                 print(g, bindings);\r
  55                 return null;\r
  56         }\r
  57 \r
  58         @Override\r
  59         public IContextualModification deny(ReadGraph g, Object[] bindings) {\r
  60                 print(g, bindings);\r
  61                 return null;\r
  62         }\r
  63 \r
  64         @Override\r
  65         public void doClaim(WriteGraph g, Object[] bindings) {\r
  66                 print(g, bindings);\r
  67         }\r
  68 \r
  69         @Override\r
  70         public void doDeny(WriteGraph g, Object[] bindings) {\r
  71                 print(g, bindings);\r
  72         }\r
  73 \r
  74         @Override\r
  75         public void collectVariables(TIntHashSet reads, TIntHashSet writes) {\r
  76                 /* Because this instruction is for debugging, it doesn't affect\r
  77                    to the set of read variables. */\r
  78         }\r
  79 \r
  80         @Override\r
  81         public void mapVariables(TIntIntHashMap map) {\r
  82         }       \r
  83         \r
  84         @Override\r
  85         public void toString(StringBuilder b, int indent) {\r
  86                 \r
  87         }\r
  88         \r
  89 }\r