-/*******************************************************************************\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.diagram.symbolcontribution;\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.ResourceRead;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.procedure.Listener;\r
-import org.simantics.db.request.Read;\r
-import org.simantics.diagram.query.DiagramRequests;\r
-import org.simantics.diagram.symbollibrary.ISymbolGroup;\r
-import org.simantics.diagram.symbollibrary.ISymbolItem;\r
-import org.simantics.diagram.synchronization.graph.BasicResources;\r
-import org.simantics.g2d.element.ElementClass;\r
-import org.simantics.g2d.element.handler.StaticSymbol;\r
-import org.simantics.ui.SimanticsUI;\r
-import org.simantics.utils.datastructures.cache.ProvisionException;\r
-import org.simantics.utils.datastructures.hints.IHintObservable;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class ElementSymbolItem extends SymbolItem {\r
-\r
- public ElementSymbolItem(Resource item, String name, ISymbolGroup group) {\r
- super(\r
- AdaptableTriple.make(\r
- item,\r
- // Prevents infinite recursion which will happen\r
- // if SymbolGroup is used as group ID.\r
- group instanceof IIdentifiedObject ? ((IIdentifiedObject) group).getId() : group,\r
- // Name is in the identification so that name\r
- // changes refresh the symbol library\r
- name),\r
- name,\r
- group);\r
- }\r
-\r
- public ElementSymbolItem(Resource item, String name, String description, ISymbolGroup group) {\r
- super(\r
- AdaptableTriple.make(\r
- item,\r
- // Prevents infinite recursion which will happen\r
- // if SymbolGroup is used as group ID.\r
- group instanceof IIdentifiedObject ? ((IIdentifiedObject) group).getId() : group,\r
- // Name is in the identification so that name\r
- // changes refresh the symbol library\r
- name),\r
- name,\r
- description,\r
- group);\r
- }\r
-\r
- @Override\r
- public ElementClass getElementClass(IHintObservable hints) {\r
- Resource item = adapt(Resource.class);\r
- RequestProcessor sgrp = SimanticsUI.peekSession();\r
- if (sgrp == null)\r
- throw new ProvisionException("No RequestProcessor available for querying an ElementClass for resource " + item);\r
- try {\r
- Listener<ElementClass> listener = hints.getHint(ISymbolItem.KEY_ELEMENT_CLASS_LISTENER);\r
- ElementClass ec = listener == null\r
- ? sgrp.syncRequest(createRequest(item, hints))\r
- : sgrp.syncRequest(createRequest(item, hints), listener);\r
- if (ec == null)\r
- throw new ProvisionException("ElementClass query failed, returned null");\r
- if (!ec.containsClass(StaticSymbol.class))\r
- throw new ProvisionException("ElementClass " + ec + " does not provide a StaticSymbol handler");\r
- return ec;\r
- } catch (DatabaseException e) {\r
- throw new ProvisionException(e);\r
- }\r
- }\r
-\r
- private Read<ElementClass> createRequest(Resource item, final IHintObservable hints) {\r
- return new ResourceRead<ElementClass>(item) {\r
- @Override\r
- public ElementClass perform(ReadGraph graph) throws DatabaseException {\r
- BasicResources.getInstance(graph);\r
- return graph.syncRequest( DiagramRequests.getElementClass(resource, hints) );\r
- }\r
- };\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.diagram.symbolcontribution;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RequestProcessor;
+import org.simantics.db.Resource;
+import org.simantics.db.common.request.ResourceRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.procedure.Listener;
+import org.simantics.db.request.Read;
+import org.simantics.diagram.query.DiagramRequests;
+import org.simantics.diagram.symbollibrary.ISymbolGroup;
+import org.simantics.diagram.symbollibrary.ISymbolItem;
+import org.simantics.diagram.synchronization.graph.BasicResources;
+import org.simantics.g2d.element.ElementClass;
+import org.simantics.g2d.element.handler.StaticSymbol;
+import org.simantics.ui.SimanticsUI;
+import org.simantics.utils.datastructures.cache.ProvisionException;
+import org.simantics.utils.datastructures.hints.IHintObservable;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class ElementSymbolItem extends SymbolItem {
+
+ public ElementSymbolItem(Resource item, String name, ISymbolGroup group) {
+ super(
+ AdaptableTriple.make(
+ item,
+ // Prevents infinite recursion which will happen
+ // if SymbolGroup is used as group ID.
+ group instanceof IIdentifiedObject ? ((IIdentifiedObject) group).getId() : group,
+ // Name is in the identification so that name
+ // changes refresh the symbol library
+ name),
+ name,
+ group);
+ }
+
+ public ElementSymbolItem(Resource item, String name, String description, ISymbolGroup group) {
+ super(
+ AdaptableTriple.make(
+ item,
+ // Prevents infinite recursion which will happen
+ // if SymbolGroup is used as group ID.
+ group instanceof IIdentifiedObject ? ((IIdentifiedObject) group).getId() : group,
+ // Name is in the identification so that name
+ // changes refresh the symbol library
+ name),
+ name,
+ description,
+ group);
+ }
+
+ @Override
+ public ElementClass getElementClass(IHintObservable hints) {
+ Resource item = adapt(Resource.class);
+ RequestProcessor sgrp = SimanticsUI.peekSession();
+ if (sgrp == null)
+ throw new ProvisionException("No RequestProcessor available for querying an ElementClass for resource " + item);
+ try {
+ Listener<ElementClass> listener = hints.getHint(ISymbolItem.KEY_ELEMENT_CLASS_LISTENER);
+ ElementClass ec = listener == null
+ ? sgrp.syncRequest(createRequest(item, hints))
+ : sgrp.syncRequest(createRequest(item, hints), listener);
+ if (ec == null)
+ throw new ProvisionException("ElementClass query failed, returned null");
+ if (!ec.containsClass(StaticSymbol.class))
+ throw new ProvisionException("ElementClass " + ec + " does not provide a StaticSymbol handler");
+ return ec;
+ } catch (DatabaseException e) {
+ throw new ProvisionException(e);
+ }
+ }
+
+ private Read<ElementClass> createRequest(Resource item, final IHintObservable hints) {
+ return new ResourceRead<ElementClass>(item) {
+ @Override
+ public ElementClass perform(ReadGraph graph) throws DatabaseException {
+ BasicResources.getInstance(graph);
+ return graph.syncRequest( DiagramRequests.getElementClass(resource, hints) );
+ }
+ };
+ }
+
+}
Code Review / simantics / platform.git / blobdiff