X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fcontent%2FConnectionPartRequest.java;fp=bundles%2Forg.simantics.diagram%2Fsrc%2Forg%2Fsimantics%2Fdiagram%2Fcontent%2FConnectionPartRequest.java;h=b60e9a561ee712f02b2b6d7e356a03c35c5c2a98;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

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
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index 000000000..b60e9a561
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/content/ConnectionPartRequest.java
@@ -0,0 +1,205 @@
+/*******************************************************************************
+ * 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.content;
+
+import java.util.HashSet;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.request.ResourceAsyncRead;
+import org.simantics.db.procedure.AsyncMultiProcedure;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.diagram.synchronization.ErrorHandler;
+
+/**
+ * @author Antti Villberg
+ * @author Tuukka Lehtonen
+ */
+public class ConnectionPartRequest extends ResourceAsyncRead<ConnectionPartData> {
+
+    final ErrorHandler    errorHandler;
+
+    final DiagramResource dr;
+
+    public ConnectionPartRequest(ErrorHandler errorHandler, DiagramResource dr, Resource resource) {
+        super(resource);
+        this.errorHandler = errorHandler;
+        this.dr = dr;
+    }
+
+    @Override
+    public void perform(AsyncReadGraph graph, final AsyncProcedure<ConnectionPartData> procedure) {
+
+        final AtomicInteger ready = new AtomicInteger(3);
+        final ConnectionPartData result = new ConnectionPartData();
+        final HashSet<EdgeResource> connectorEdges = new HashSet<EdgeResource>();
+        final HashSet<EdgeResource> branchEdges = new HashSet<EdgeResource>();
+
+        result.edges = connectorEdges;
+        result.branchPoints = new ConcurrentLinkedQueue<Resource>();
+
+        AsyncMultiProcedure<Resource> locationProcedure = new AsyncMultiProcedure<Resource>() {
+
+            @Override
+            public void exception(AsyncReadGraph graph, Throwable throwable) {
+                errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);
+            }
+
+            @Override
+            public void execute(AsyncReadGraph graph, final Resource location) {
+
+                ready.incrementAndGet();
+
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
+
+                    @Override
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {
+                        errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);
+                    }
+
+                    @Override
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {
+                        synchronized (connectorEdges) {
+                            connectorEdges.add(new EdgeResource(location, connectedTo));
+                        }
+                    }
+
+                    @Override
+                    public void finished(AsyncReadGraph graph) {
+                        if (ready.decrementAndGet() == 0) {
+                            connectorEdges.addAll(branchEdges);
+                            procedure.execute(graph, result);
+                        }
+                    }
+
+                });
+
+            }
+
+            @Override
+            public void finished(AsyncReadGraph graph) {
+                if (ready.decrementAndGet() == 0) {
+                    connectorEdges.addAll(branchEdges);
+                    procedure.execute(graph, result);
+                }
+            }
+
+        };
+
+        AsyncMultiProcedure<Resource> locationProcedure2 = new AsyncMultiProcedure<Resource>() {
+
+            @Override
+            public void exception(AsyncReadGraph graph, Throwable throwable) {
+                errorHandler.error("forEachObject(connection, Has Branch Point) failure", throwable);
+            }
+
+            @Override
+            public void execute(AsyncReadGraph graph, final Resource location) {
+
+                ready.incrementAndGet();
+
+                result.branchPoints.add(location);
+
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
+
+                    @Override
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {
+                        errorHandler.error("forEachObject(:Branch Point, Are Connected) failure", throwable);
+                    }
+
+                    @Override
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {
+                        synchronized (branchEdges) {
+                            branchEdges.add(new EdgeResource(location, connectedTo));
+                        }
+                    }
+
+                    @Override
+                    public void finished(AsyncReadGraph graph) {
+                        if (ready.decrementAndGet() == 0) {
+                            connectorEdges.addAll(branchEdges);
+                            procedure.execute(graph, result);
+                        }
+                    }
+
+                });
+
+            }
+
+            @Override
+            public void finished(AsyncReadGraph graph) {
+                if (ready.decrementAndGet() == 0) {
+                    connectorEdges.addAll(branchEdges);
+                    procedure.execute(graph, result);
+                }
+            }
+
+        };
+
+        AsyncMultiProcedure<Resource> locationProcedure3 = new AsyncMultiProcedure<Resource>() {
+
+            @Override
+            public void exception(AsyncReadGraph graph, Throwable throwable) {
+                errorHandler.error("forEachObject(connection, Has I/O) failure", throwable);
+            }
+
+            @Override
+            public void execute(AsyncReadGraph graph, final Resource location) {
+
+                ready.incrementAndGet();
+
+                graph.forEachObject(location, dr.AreConnected, new AsyncMultiProcedure<Resource>() {
+
+                    @Override
+                    public void exception(AsyncReadGraph graph, Throwable throwable) {
+                        errorHandler.error("forEachObject(:I/O Connector, Are Connected) failure", throwable);
+                    }
+
+                    @Override
+                    public void execute(AsyncReadGraph graph, Resource connectedTo) {
+                        synchronized (connectorEdges) {
+                            connectorEdges.add(new EdgeResource(connectedTo, location));
+                        }
+                    }
+
+                    @Override
+                    public void finished(AsyncReadGraph graph) {
+                        if (ready.decrementAndGet() == 0) {
+                            connectorEdges.addAll(branchEdges);
+                            procedure.execute(graph, result);
+                        }
+                    }
+
+                });
+
+            }
+
+            @Override
+            public void finished(AsyncReadGraph graph) {
+                if (ready.decrementAndGet() == 0) {
+                    connectorEdges.addAll(branchEdges);
+                    procedure.execute(graph, result);
+                }
+            }
+
+        };
+
+        graph.forEachObject(resource, dr.HasPlainConnector, locationProcedure);
+        graph.forEachObject(resource, dr.HasBranchPoint, locationProcedure2);
+        graph.forEachObject(resource, dr.HasArrowConnector, locationProcedure3);
+
+    }
+
+}