+/*******************************************************************************\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