Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / content / ConnectionPartRequest.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/content/ConnectionPartRequest.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/content/ConnectionPartRequest.java
new file mode 100644 (file)
index 0000000..b60e9a5
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/content/ConnectionPartRequest.java
@@ -0,0 +1,205 @@
+/*******************************************************************************\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.content;\r
+\r
+import java.util.HashSet;\r
+import java.util.concurrent.ConcurrentLinkedQueue;\r
+import java.util.concurrent.atomic.AtomicInteger;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ResourceAsyncRead;\r
+import org.simantics.db.procedure.AsyncMultiProcedure;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.diagram.synchronization.ErrorHandler;\r
+\r
+/**\r
+ * @author Antti Villberg\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ConnectionPartRequest extends ResourceAsyncRead<ConnectionPartData> {\r
+\r
+    final ErrorHandler    errorHandler;\r
+\r
+    final DiagramResource dr;\r
+\r
+    public ConnectionPartRequest(ErrorHandler errorHandler, DiagramResource dr, Resource resource) {\r
+        super(resource);\r
+        this.errorHandler = errorHandler;\r
+        this.dr = dr;\r
+    }\r
+\r
+    @Override\r
+    public void perform(AsyncReadGraph graph, final AsyncProcedure<ConnectionPartData> procedure) {\r
+\r
+        final AtomicInteger ready = new AtomicInteger(3);\r
+        final ConnectionPartData result = new ConnectionPartData();\r
+        final HashSet<EdgeResource> connectorEdges = new HashSet<EdgeResource>();\r
+        final HashSet<EdgeResource> branchEdges = new HashSet<EdgeResource>();\r
+\r
+        result.edges = connectorEdges;\r
+        result.branchPoints = new ConcurrentLinkedQueue<Resource>();\r
+\r
+        AsyncMultiProcedure<Resource> locationProcedure = new AsyncMultiProcedure<Resource>() {\r
+\r
+            @Override\r
+            public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);\r
+            }\r
+\r
+            @Override\r
+            public void execute(AsyncReadGraph graph, final Resource location) {\r
+\r
+                ready.incrementAndGet();\r
+\r
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {\r
+\r
+                    @Override\r
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                        errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);\r
+                    }\r
+\r
+                    @Override\r
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {\r
+                        synchronized (connectorEdges) {\r
+                            connectorEdges.add(new EdgeResource(location, connectedTo));\r
+                        }\r
+                    }\r
+\r
+                    @Override\r
+                    public void finished(AsyncReadGraph graph) {\r
+                        if (ready.decrementAndGet() == 0) {\r
+                            connectorEdges.addAll(branchEdges);\r
+                            procedure.execute(graph, result);\r
+                        }\r
+                    }\r
+\r
+                });\r
+\r
+            }\r
+\r
+            @Override\r
+            public void finished(AsyncReadGraph graph) {\r
+                if (ready.decrementAndGet() == 0) {\r
+                    connectorEdges.addAll(branchEdges);\r
+                    procedure.execute(graph, result);\r
+                }\r
+            }\r
+\r
+        };\r
+\r
+        AsyncMultiProcedure<Resource> locationProcedure2 = new AsyncMultiProcedure<Resource>() {\r
+\r
+            @Override\r
+            public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                errorHandler.error("forEachObject(connection, Has Branch Point) failure", throwable);\r
+            }\r
+\r
+            @Override\r
+            public void execute(AsyncReadGraph graph, final Resource location) {\r
+\r
+                ready.incrementAndGet();\r
+\r
+                result.branchPoints.add(location);\r
+\r
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {\r
+\r
+                    @Override\r
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                        errorHandler.error("forEachObject(:Branch Point, Are Connected) failure", throwable);\r
+                    }\r
+\r
+                    @Override\r
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {\r
+                        synchronized (branchEdges) {\r
+                            branchEdges.add(new EdgeResource(location, connectedTo));\r
+                        }\r
+                    }\r
+\r
+                    @Override\r
+                    public void finished(AsyncReadGraph graph) {\r
+                        if (ready.decrementAndGet() == 0) {\r
+                            connectorEdges.addAll(branchEdges);\r
+                            procedure.execute(graph, result);\r
+                        }\r
+                    }\r
+\r
+                });\r
+\r
+            }\r
+\r
+            @Override\r
+            public void finished(AsyncReadGraph graph) {\r
+                if (ready.decrementAndGet() == 0) {\r
+                    connectorEdges.addAll(branchEdges);\r
+                    procedure.execute(graph, result);\r
+                }\r
+            }\r
+\r
+        };\r
+\r
+        AsyncMultiProcedure<Resource> locationProcedure3 = new AsyncMultiProcedure<Resource>() {\r
+\r
+            @Override\r
+            public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);\r
+            }\r
+\r
+            @Override\r
+            public void execute(AsyncReadGraph graph, final Resource location) {\r
+\r
+                ready.incrementAndGet();\r
+\r
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {\r
+\r
+                    @Override\r
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                        errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);\r
+                    }\r
+\r
+                    @Override\r
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {\r
+                        synchronized (connectorEdges) {\r
+                            connectorEdges.add(new EdgeResource(connectedTo, location));\r
+                        }\r
+                    }\r
+\r
+                    @Override\r
+                    public void finished(AsyncReadGraph graph) {\r
+                        if (ready.decrementAndGet() == 0) {\r
+                            connectorEdges.addAll(branchEdges);\r
+                            procedure.execute(graph, result);\r
+                        }\r
+                    }\r
+\r
+                });\r
+\r
+            }\r
+\r
+            @Override\r
+            public void finished(AsyncReadGraph graph) {\r
+                if (ready.decrementAndGet() == 0) {\r
+                    connectorEdges.addAll(branchEdges);\r
+                    procedure.execute(graph, result);\r
+                }\r
+            }\r
+\r
+        };\r
+\r
+        graph.forEachObject(resource, dr.HasPlainConnector, locationProcedure);\r
+        graph.forEachObject(resource, dr.HasBranchPoint, locationProcedure2);\r
+        graph.forEachObject(resource, dr.HasArrowConnector, locationProcedure3);\r
+\r
+    }\r
+\r
+}\r