Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.mapping / src / org / simantics / mapping / constraint / instructions / UnaryPredicateInstruction.java

diff --git a/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/UnaryPredicateInstruction.java b/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/UnaryPredicateInstruction.java
new file mode 100644 (file)
index 0000000..66ca945
--- /dev/null
+++ b/bundles/org.simantics.mapping/src/org/simantics/mapping/constraint/instructions/UnaryPredicateInstruction.java
@@ -0,0 +1,130 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.mapping.constraint.instructions;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.utils.predicates.IUnaryPredicate;\r
+import org.simantics.layer0.utils.predicates.Type;\r
+import org.simantics.mapping.IContextualModification;\r
+\r
+public class UnaryPredicateInstruction extends Instruction1 {\r
+       \r
+       IUnaryPredicate predicate;\r
+\r
+       public UnaryPredicateInstruction(int variable0, IUnaryPredicate predicate) {\r
+               super(variable0);\r
+               this.predicate = predicate;\r
+       }\r
+       \r
+       @Override\r
+       public Object query(ReadGraph g, Object[] bindings) throws DatabaseException {\r
+//             ITask task = ThreadLogger.getInstance().begin("g");\r
+               if(predicate.has(g, (Resource)bindings[variable0])) {\r
+//                     task.finish();\r
+                       return null;\r
+               }\r
+               else {\r
+//                     task.finish();\r
+                       return IInstruction.FAILURE;\r
+               }\r
+       }\r
+       \r
+       @Override\r
+       public Object next(ReadGraph g, Object[] bindings, Object continuation) {\r
+               return IInstruction.FAILURE;\r
+       }\r
+       \r
+       @Override\r
+       public IContextualModification claim(ReadGraph g, Object[] bindings) throws DatabaseException {\r
+               Resource r = (Resource)bindings[variable0];\r
+//             ITask task = ThreadLogger.getInstance().begin("g");\r
+               if(!predicate.has(g, r)) {\r
+//                     task.finish();          \r
+                       return new IContextualModification() {\r
+\r
+                               @Override\r
+                               public void perform(WriteGraph g, Object[] bindings) throws DatabaseException {\r
+//                                     ITask task = ThreadLogger.getInstance().begin("g");\r
+                               if(DEBUG_MODI)\r
+                                   System.out.println("claim(" + predicate + ", " + \r
+                                           NameUtils.getSafeName(g, (Resource)bindings[variable0]));\r
+                               if(!DISABLE_MODI)\r
+                                       predicate.add(g, (Resource)bindings[variable0]);\r
+//                                     task.finish();\r
+                               }\r
+                       \r
+                       };\r
+               }\r
+//             task.finish();\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public void doClaim(WriteGraph g, Object[] bindings) throws DatabaseException {\r
+               Resource r0 = (Resource)bindings[variable0];\r
+//             ITask task = ThreadLogger.getInstance().begin("g");\r
+               if(DEBUG) {\r
+               String predicateName = predicate.toString();\r
+               if(predicate instanceof Type)\r
+                   predicateName = ":: " + NameUtils.getSafeName(g, ((Type)predicate).getType());\r
+               System.out.println("@ claimUnary(" + NameUtils.getSafeName(g, r0) + ", " + predicateName + ")");\r
+               }\r
+        if(DEBUG_MODI)\r
+            System.out.println("claim(" + predicate + ", " + \r
+                    NameUtils.getSafeName(g, (Resource)bindings[variable0]));\r
+        if(!DISABLE_MODI)\r
+               predicate.add(g, r0);\r
+//             task.finish();\r
+       }\r
+       \r
+       @Override\r
+       public IContextualModification deny(ReadGraph g, Object[] bindings) throws DatabaseException {\r
+               Resource r = (Resource)bindings[variable0];\r
+               if(predicate.has(g, r))\r
+                       return new IContextualModification() {\r
+\r
+                               @Override\r
+                               public void perform(WriteGraph g, Object[] bindings) throws DatabaseException {\r
+                                   if(DEBUG_MODI)\r
+                                       System.out.println("deny(" + predicate + ", " + \r
+                                               NameUtils.getSafeName(g, (Resource)bindings[variable0]));\r
+                                   if(!DISABLE_MODI)\r
+                                       predicate.remove(g, (Resource)bindings[variable0]);\r
+                               }\r
+                       \r
+                       };\r
+               return null;\r
+       }\r
+       \r
+       @Override\r
+       public void doDeny(WriteGraph g, Object[] bindings) throws DatabaseException {\r
+               Resource r0 = (Resource)bindings[variable0];\r
+               if(predicate.has(g, r0)) {\r
+            if(DEBUG_MODI)\r
+                System.out.println("deny(" + predicate + ", " + \r
+                        NameUtils.getSafeName(g, (Resource)bindings[variable0]));\r
+            if(!DISABLE_MODI)\r
+               predicate.remove(g, r0);\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void toString(StringBuilder b, int indent) {\r
+               b.append('(');\r
+               b.append(variable0);\r
+               b.append(')');\r
+       }\r
+}\r