Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/ClipboardUtils.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/ClipboardUtils.java
new file mode 100644 (file)
index 0000000..ca78dd8
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/ClipboardUtils.java
@@ -0,0 +1,166 @@
+/*******************************************************************************\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.db.layer0.util;\r
+\r
+import java.io.File;\r
+import java.io.IOException;\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.Map;\r
+import java.util.Set;\r
+\r
+import org.simantics.databoard.adapter.AdaptException;\r
+import org.simantics.databoard.container.DataContainer;\r
+import org.simantics.databoard.container.DataContainers;\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.ResourceRead;\r
+import org.simantics.db.common.utils.Logger;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.adapter.PasteHandler;\r
+import org.simantics.db.layer0.internal.SimanticsInternal;\r
+import org.simantics.db.layer0.util.SimanticsClipboard.Representation;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.graph.representation.TransferableGraph1;\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+\r
+public class ClipboardUtils {\r
+       \r
+       public static String HINT_TARGET_RESOURCE = "HINT_TARGET_RESOURCE";\r
+\r
+       public static <T> T accept(Set<Representation> set, Key key) throws DatabaseException {\r
+               return accept(set, key, Collections.emptyMap());\r
+       }\r
+\r
+       public static <T> T accept(Set<Representation> set, Key key, Map<String,Object> hints) throws DatabaseException {\r
+               for(Representation r : set) if(r.getKey().equals(key)) return r.getValue(SimanticsInternal.getSession(), hints);\r
+               return null;\r
+       }\r
+       \r
+       public static <T> T accept(RequestProcessor processor, Set<Representation> set, Key key) throws DatabaseException {\r
+               return accept(processor, set, key, Collections.emptyMap());\r
+       }\r
+\r
+       public static <T> T accept(RequestProcessor processor, Set<Representation> set, Key key, Map<String,Object> hints) throws DatabaseException {\r
+               for(Representation r : set) if(r.getKey().equals(key)) return r.getValue(processor, hints);\r
+               return null;\r
+       }\r
+\r
+       public static <T> T accept(ReadGraph graph, Set<Representation> set, Key key) throws DatabaseException {\r
+               return accept(graph, set, key, Collections.<String, Object>emptyMap());\r
+       }\r
+\r
+       public static <T> T accept(ReadGraph graph, Set<Representation> set, Key key, Map<String,Object> hints) throws DatabaseException {\r
+               for(Representation r : set) if(r.getKey().equals(key)) return r.getValue(graph, hints);\r
+               return null;\r
+       }\r
+       \r
+       public static <T> T acceptPossible(ReadGraph graph, Key key) throws DatabaseException {\r
+               return acceptPossible(graph, key, Collections.emptyMap());\r
+       }\r
+\r
+       public static <T> T acceptPossible(ReadGraph graph, Key key, Map<String,Object> hints) throws DatabaseException {\r
+           Collection<T> results = accept(graph, key, hints);\r
+           if(results.size() == 1) return results.iterator().next();\r
+           else return null;\r
+       }\r
+\r
+    @SuppressWarnings("unchecked")\r
+    public static <T> Collection<T> accept(ReadGraph graph, Key key, Map<String,Object> hints) throws DatabaseException {\r
+        ArrayList<T> result = new ArrayList<T>();\r
+        for(Set<Representation> rs : SimanticsInternal.getClipboard().getContents()) {\r
+            for(Representation r : rs) {\r
+                if(r.getKey().equals(key)) {\r
+                    result.add((T)r.getValue(graph, hints));\r
+                    continue;\r
+                }\r
+            }\r
+        }\r
+        return result;\r
+    }\r
+\r
+       public static SimanticsClipboard fileClipboard(String fileName) throws IOException {\r
+               \r
+               DataContainer container = DataContainers.readFile(new File(fileName));\r
+               \r
+               try {\r
+                       Representation tgRep = new TGRepresentation((TransferableGraph1)container.content.getValue(TransferableGraph1.BINDING));\r
+                       Representation dcRep = new DataContainerRepresentation(container);\r
+                       return SimanticsClipboardImpl.make(dcRep, tgRep);\r
+               } catch (AdaptException e) {\r
+                       Logger.defaultLogError(e);\r
+                       return SimanticsClipboardImpl.EMPTY;\r
+               }\r
+               \r
+               \r
+       }\r
+       \r
+       public static Representation createTransferableGraph(Resource ... resources) {\r
+               return new TGRepresentation(resources);\r
+       }\r
+\r
+       public static Representation createTransferableGraph(TransferableGraphConfiguration2 configuration) {\r
+               return new TGRepresentation(configuration);\r
+       }\r
+\r
+       public static Representation createTransferableGraph(boolean ignoreVirtualResources, Resource ... resources) {\r
+               return new TGRepresentation(ignoreVirtualResources, resources);\r
+       }\r
+\r
+       public static Representation createVariable(String uri) {\r
+               return new VariableRepresentation(uri);\r
+       }\r
+\r
+       public static Representation createVariable(RequestProcessor processor, final Variable var) {\r
+               \r
+               try {\r
+                       \r
+                       return new VariableRepresentation(processor.syncRequest(new Read<String>() {\r
+\r
+                               @Override\r
+                               public String perform(ReadGraph graph) throws DatabaseException {\r
+                                       return var.getURI(graph);\r
+                               }\r
+                               \r
+                       }));\r
+                       \r
+               } catch (DatabaseException e) {\r
+                       Logger.defaultLogError(e);\r
+               }\r
+               \r
+               return null;\r
+               \r
+       }\r
+\r
+    public static Representation createCopyResources(final Collection<Resource> resources) {\r
+        return new ResourceCopyRepresentation(resources);\r
+    }\r
+\r
+    public static Representation createCutResources(final Collection<Resource> resources) {\r
+        return new ResourceCutRepresentation(resources);\r
+    }\r
+    \r
+    public static PasteHandler pasteHandler(Resource resource) throws DatabaseException {\r
+       return SimanticsInternal.sync(new ResourceRead<PasteHandler>(resource) {\r
+\r
+                       @Override\r
+                       public PasteHandler perform(ReadGraph graph) throws DatabaseException {\r
+                               return graph.adapt(resource, PasteHandler.class);\r
+                       }\r
+               \r
+       });\r
+    }\r
+\r
+}\r