-/*******************************************************************************\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.adapter;\r
-\r
-import org.simantics.db.AsyncReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.common.primitiverequest.Adapter;\r
-import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;\r
-import org.simantics.db.procedure.AsyncProcedure;\r
-import org.simantics.db.procedure.Listener;\r
-import org.simantics.diagram.synchronization.ErrorHandler;\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.diagram.IDiagram;\r
-import org.simantics.g2d.element.ElementClass;\r
-import org.simantics.g2d.element.IElement;\r
-\r
-/**\r
- * @author Antti Villberg\r
- */\r
-public class NodeRequest extends BaseRequest2<Resource, IElement> {\r
-\r
- final IDiagram diagram;\r
- final Listener<IElement> loadListener;\r
-\r
- public NodeRequest(ICanvasContext canvas, IDiagram diagram, Resource resource, Listener<IElement> loadListener) {\r
- super(canvas, resource);\r
- this.diagram = diagram;\r
- this.loadListener = loadListener;\r
- }\r
-\r
- @Override\r
- public void perform(AsyncReadGraph graph, final AsyncProcedure<IElement> procedure) {\r
- // Keep this code from crashing the whole DB client by unexpected\r
- // throwing of NPE's somewhere in the following code that leads to\r
- // procedure not getting called properly.\r
- if (diagram == null) {\r
- procedure.exception(graph, new NullPointerException("null diagram specified for resource " + data));\r
- return;\r
- }\r
-\r
-// System.out.println("NodeRequest2 " + data);\r
-// graph.asyncRequest(new SafeName(data), new Procedure<String>() {\r
-// @Override\r
-// public void exception(Throwable t) {\r
-// }\r
-// @Override\r
-// public void execute(String result) {\r
-// System.out.println("NodeRequest2 " + result);\r
-// }\r
-// });\r
-\r
- final ErrorHandler eh = ElementFactoryUtil.getErrorHandler(diagram);\r
-\r
- graph.forHasStatement(data, new AsyncProcedure<Boolean>() {\r
-\r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable throwable) {\r
- eh.error("NodeRequest.forHasStatement failed", throwable);\r
- procedure.execute(graph, null);\r
- }\r
-\r
- @Override\r
- public void execute(AsyncReadGraph graph, Boolean result) {\r
-\r
- if(!result) {\r
- procedure.execute(graph, null);\r
- return;\r
- }\r
-\r
- graph.asyncRequest(new Adapter<ElementFactory>(data, ElementFactory.class), new TransientCacheAsyncListener<ElementFactory>() {\r
-\r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable throwable) {\r
- eh.error("NodeRequest.asyncRequest(Adapter<ElementFactory>) failed", throwable);\r
- procedure.execute(graph, null);\r
- }\r
-\r
- @Override\r
- public void execute(AsyncReadGraph graph, final ElementFactory factory) {\r
-\r
-// graph.asyncRequest(new ResourceToURI(data), new Procedure<String>() {\r
-// @Override\r
-// public void exception(Throwable t) {\r
-// }\r
-// @Override\r
-// public void execute(String result) {\r
-// System.out.println("NodeRequest2 factory for " + result + " -> " + factory);\r
-// }\r
-// });\r
-\r
- graph.asyncRequest(new GetElementClassRequest(factory, data, canvas, diagram), new TransientCacheAsyncListener<ElementClass>() {\r
-\r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable throwable) {\r
- throwable.printStackTrace();\r
- procedure.execute(graph, null);\r
- }\r
-\r
- @Override\r
- public void execute(AsyncReadGraph graph, final ElementClass clazz) {\r
-\r
- graph.asyncRequest(new SpawnRequest(canvas, clazz, data), new TransientCacheAsyncListener<IElement>() {\r
-\r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable throwable) {\r
- throwable.printStackTrace();\r
- procedure.execute(graph, null);\r
- }\r
-\r
- @Override\r
- public void execute(AsyncReadGraph graph, IElement element) {\r
- procedure.execute(graph, element);\r
-\r
- if (loadListener != null) {\r
- //System.out.println("LoadRequest[" + (loadCounter++) + "] for " + data + ": " + element);\r
- graph.asyncRequest(new LoadRequest(canvas, diagram, factory, clazz, data), loadListener);\r
- } else {\r
- //System.out.println("Spawn[" + (spawnCounter++) + "] for " + data + ": " + element);\r
- factory.load(graph, canvas, diagram, data, element, new AsyncProcedure<IElement>() {\r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable throwable) {\r
- // TODO: proper logging\r
- throwable.printStackTrace();\r
- }\r
- @Override\r
- public void execute(AsyncReadGraph graph, IElement result) {\r
- // Loading complete, don't care.\r
- }\r
- });\r
- }\r
- }\r
-\r
- });\r
-\r
- }\r
-\r
- });\r
-\r
-// graph.asyncRequest(new SafeName(data), new Procedure<String>() {\r
-// @Override\r
-// public void exception(Throwable t) {\r
-// }\r
-// @Override\r
-// public void execute(String result) {\r
-// System.out.println("NodeRequest2 factory " + result + " " + factory.getClass().getName());\r
-// }\r
-// });\r
-\r
- }\r
-\r
- });\r
-\r
- }\r
-\r
- });\r
-\r
- }\r
-\r
- static int loadCounter = 0;\r
- static int spawnCounter = 0;\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.adapter;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.primitiverequest.Adapter;
+import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.db.procedure.Listener;
+import org.simantics.diagram.synchronization.ErrorHandler;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.element.ElementClass;
+import org.simantics.g2d.element.IElement;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * @author Antti Villberg
+ */
+public class NodeRequest extends BaseRequest2<Resource, IElement> {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(NodeRequest.class);
+
+ final IDiagram diagram;
+ final Listener<IElement> loadListener;
+
+ public NodeRequest(ICanvasContext canvas, IDiagram diagram, Resource resource, Listener<IElement> loadListener) {
+ super(canvas, resource);
+ this.diagram = diagram;
+ this.loadListener = loadListener;
+ }
+
+ @Override
+ public void perform(AsyncReadGraph graph, final AsyncProcedure<IElement> procedure) {
+ // Keep this code from crashing the whole DB client by unexpected
+ // throwing of NPE's somewhere in the following code that leads to
+ // procedure not getting called properly.
+ if (diagram == null) {
+ procedure.exception(graph, new NullPointerException("null diagram specified for resource " + data));
+ return;
+ }
+
+// System.out.println("NodeRequest2 " + data);
+// graph.asyncRequest(new SafeName(data), new Procedure<String>() {
+// @Override
+// public void exception(Throwable t) {
+// }
+// @Override
+// public void execute(String result) {
+// System.out.println("NodeRequest2 " + result);
+// }
+// });
+
+ final ErrorHandler eh = ElementFactoryUtil.getErrorHandler(diagram);
+
+ graph.forHasStatement(data, new AsyncProcedure<Boolean>() {
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable throwable) {
+ eh.error("NodeRequest.forHasStatement failed", throwable);
+ procedure.execute(graph, null);
+ }
+
+ @Override
+ public void execute(AsyncReadGraph graph, Boolean result) {
+
+ if(!result) {
+ procedure.execute(graph, null);
+ return;
+ }
+
+ graph.asyncRequest(new Adapter<ElementFactory>(data, ElementFactory.class), new TransientCacheAsyncListener<ElementFactory>() {
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable throwable) {
+ eh.error("NodeRequest.asyncRequest(Adapter<ElementFactory>) failed", throwable);
+ procedure.execute(graph, null);
+ }
+
+ @Override
+ public void execute(AsyncReadGraph graph, final ElementFactory factory) {
+
+// graph.asyncRequest(new ResourceToURI(data), new Procedure<String>() {
+// @Override
+// public void exception(Throwable t) {
+// }
+// @Override
+// public void execute(String result) {
+// System.out.println("NodeRequest2 factory for " + result + " -> " + factory);
+// }
+// });
+
+ graph.asyncRequest(new GetElementClassRequest(factory, data, canvas, diagram), new TransientCacheAsyncListener<ElementClass>() {
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable throwable) {
+ LOGGER.error("Unexpected error in GetElementClassRequest", throwable);
+ procedure.execute(graph, null);
+ }
+
+ @Override
+ public void execute(AsyncReadGraph graph, final ElementClass clazz) {
+
+ graph.asyncRequest(new SpawnRequest(canvas, clazz, data), new TransientCacheAsyncListener<IElement>() {
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable throwable) {
+ LOGGER.error("Unexpected error in SpawnRequest", throwable);
+ procedure.execute(graph, null);
+ }
+
+ @Override
+ public void execute(AsyncReadGraph graph, IElement element) {
+ procedure.execute(graph, element);
+
+ if (loadListener != null) {
+ //System.out.println("LoadRequest[" + (loadCounter++) + "] for " + data + ": " + element);
+ graph.asyncRequest(new LoadRequest(canvas, diagram, factory, clazz, data), loadListener);
+ } else {
+ //System.out.println("Spawn[" + (spawnCounter++) + "] for " + data + ": " + element);
+ factory.load(graph, canvas, diagram, data, element, new AsyncProcedure<IElement>() {
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable throwable) {
+ LOGGER.error("Unexpected error in ElementFactory.load (factory=" + factory + ")", throwable);
+ }
+ @Override
+ public void execute(AsyncReadGraph graph, IElement result) {
+ // Loading complete, don't care.
+ }
+ });
+ }
+ }
+
+ });
+
+ }
+
+ });
+
+// graph.asyncRequest(new SafeName(data), new Procedure<String>() {
+// @Override
+// public void exception(Throwable t) {
+// }
+// @Override
+// public void execute(String result) {
+// System.out.println("NodeRequest2 factory " + result + " " + factory.getClass().getName());
+// }
+// });
+
+ }
+
+ });
+
+ }
+
+ });
+
+ }
+
+ static int loadCounter = 0;
+ static int spawnCounter = 0;
+
+}
Code Review / simantics / platform.git / blobdiff