Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.model / src / org / simantics / browsing / ui / model / modifiers / L0StringModifier.java

diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/L0StringModifier.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/L0StringModifier.java
new file mode 100644 (file)
index 0000000..23c19b8
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/modifiers/L0StringModifier.java
@@ -0,0 +1,97 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 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.browsing.ui.model.modifiers;\r
+\r
+import org.simantics.browsing.ui.common.ErrorLogger;\r
+import org.simantics.browsing.ui.content.Labeler.Modifier;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Statement;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.primitiverequest.PossibleAdapter;\r
+import org.simantics.db.common.request.WriteRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.adapter.StringModifier;\r
+import org.simantics.db.layer0.util.Layer0Utils;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class L0StringModifier implements Modifier {\r
+\r
+       private final RequestProcessor processor;\r
+       private final Resource         subject;\r
+       private final Resource         propertyRelation;\r
+       private final Resource         literal;\r
+\r
+       public L0StringModifier(RequestProcessor processor, Resource subject, Resource propertyRelation, Resource literal) {\r
+               this.processor = processor;\r
+               this.subject = subject;\r
+               this.propertyRelation = propertyRelation;\r
+               this.literal = literal;\r
+       }\r
+\r
+       @Override\r
+       public String getValue() {\r
+               try {\r
+                       return processor.syncRequest(new PossibleAdapter<String>(literal, String.class));\r
+               } catch (DatabaseException e) {\r
+                       ErrorLogger.defaultLogError(e);\r
+                       return null;\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public String isValid(final String label) {\r
+               try {\r
+                       return processor.syncRequest(new Read<String>() {\r
+                               @Override\r
+                               public String perform(ReadGraph graph) throws DatabaseException {\r
+                                       StringModifier modifier = graph.adapt(literal, StringModifier.class);\r
+                                       return modifier.isValid(label);\r
+                               }\r
+                       });\r
+               } catch (DatabaseException e) {\r
+                       ErrorLogger.defaultLogError(e);\r
+                       return e.getMessage();\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void modify(final String label) {\r
+               try {\r
+                       processor.syncRequest(new WriteRequest() {\r
+                               @Override\r
+                               public void perform(WriteGraph graph) throws DatabaseException {\r
+                                       Layer0Utils.addCommentMetadata(graph, "Modify string");\r
+                       graph.markUndoPoint();\r
+                                       Statement stm = graph.getPossibleStatement(subject, propertyRelation);\r
+                                       if (stm.isAsserted(subject)) {\r
+                                               Layer0 L0 = Layer0.getInstance(graph);\r
+                                               Resource newLiteral = graph.newResource();\r
+                                               for (Resource iof : graph.getObjects(literal, L0.InstanceOf))\r
+                                                       graph.claim(newLiteral, L0.InstanceOf, null, iof);\r
+                                               graph.claim(subject, propertyRelation, newLiteral);\r
+                                               StringModifier modifier = graph.adapt(newLiteral, StringModifier.class);\r
+                                               modifier.modify(graph, label);\r
+                                       } else {\r
+                                               StringModifier modifier = graph.adapt(literal, StringModifier.class);\r
+                                               modifier.modify(graph, label);\r
+                                       }\r
+                               }\r
+                       });\r
+               } catch (DatabaseException e) {\r
+                       ErrorLogger.defaultLogError(e);\r
+               }\r
+       }\r
+\r
+}\r