Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / util / TGRepresentation.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TGRepresentation.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TGRepresentation.java
new file mode 100644 (file)
index 0000000..9e8012c
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/TGRepresentation.java
@@ -0,0 +1,78 @@
+package org.simantics.db.layer0.util;\r
+\r
+import java.util.Arrays;\r
+import java.util.Map;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.UniqueRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.util.SimanticsClipboard.Representation;\r
+import org.simantics.graph.db.TransferableGraphs;\r
+import org.simantics.graph.representation.TransferableGraph1;\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+\r
+public class TGRepresentation implements Representation {\r
+\r
+       protected boolean ignoreVirtualResources = false;\r
+       protected Resource[] resources;\r
+       private TransferableGraph1 value = null;\r
+       private TransferableGraphConfiguration2 configuration;\r
+       \r
+       public TGRepresentation(Resource ... resources) {\r
+               this.resources = resources;\r
+       }\r
+\r
+       public TGRepresentation(boolean ignoreVirtualResources, Resource ... resources) {\r
+               this.ignoreVirtualResources = ignoreVirtualResources;\r
+               this.resources = resources;\r
+       }\r
+\r
+       public TGRepresentation(TransferableGraphConfiguration2 configuration) {\r
+               this.configuration = configuration;\r
+       }\r
+\r
+       public TGRepresentation(TransferableGraph1 value) {\r
+               this.value = value;\r
+       }\r
+\r
+       @Override\r
+       public Key getKey() {\r
+               return SimanticsKeys.KEY_TRANSFERABLE_GRAPH;\r
+       }\r
+       \r
+       public TransferableGraph1 compute(ReadGraph graph, Map<String,Object> hints) throws DatabaseException {\r
+               \r
+               if(configuration == null) {\r
+                       configuration = new TransferableGraphConfiguration2(graph, Arrays.asList(resources), ignoreVirtualResources, false);\r
+                       configuration.exclusionFunction = TGRepresentationUtils.computeExclusionFunction(graph, resources, hints);\r
+               }\r
+               \r
+               ModelTransferableGraphSource source = graph.syncRequest(new ModelTransferableGraphSourceRequest(configuration));\r
+               return TransferableGraphs.create(graph, source);\r
+               \r
+       }\r
+       \r
+       @SuppressWarnings("unchecked")\r
+       @Override\r
+       public <T> T getValue(RequestProcessor processor, Map<String,Object> hints) throws DatabaseException {\r
+               \r
+               if(value == null) {\r
+\r
+                       value = processor.syncRequest(new UniqueRead<TransferableGraph1>() {\r
+\r
+                               @Override\r
+                               public TransferableGraph1 perform(ReadGraph graph) throws DatabaseException {\r
+                                       return compute(graph, hints);\r
+                               }\r
+\r
+                       });\r
+\r
+               }\r
+               \r
+               return (T)value;\r
+               \r
+       }\r
+       \r
+}
\ No newline at end of file