-/*******************************************************************************\r
- * Copyright (c) 2012 Association for Decentralized Information Management in\r
- * 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.modeling.adapters;\r
-\r
-import gnu.trove.set.hash.THashSet;\r
-\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Set;\r
-\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.common.utils.OrderedSetUtils;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.layer0.adapter.Remover;\r
-import org.simantics.db.layer0.adapter.impl.AbstractRemover;\r
-import org.simantics.db.layer0.adapter.impl.EntityRemover;\r
-import org.simantics.db.layer0.util.RemoverUtil;\r
-import org.simantics.diagram.content.ConnectionUtil;\r
-import org.simantics.diagram.stubs.DiagramResource;\r
-import org.simantics.layer0.utils.binaryPredicates.OrderedSetElementsPredicate;\r
-import org.simantics.modeling.ModelingResources;\r
-import org.simantics.structural.stubs.StructuralResource2;\r
-\r
-/**\r
- * A {@link Remover} implementation for removing DIA.Element instances.\r
- * \r
- * The implementation has separate paths for STR.Connection instances and other\r
- * DIA.Element instances. For DIA.Element this remover will:\r
- * <ol>\r
- * <li>List connections/monitors the element is attached to</li>\r
- * <li>Disconnect the element from its owner diagram(s)</li>\r
- * <li>Remove the element itself with EntityRemover default logic</li>\r
- * <li>Recursively remove all related degenerate connections, i.e. connections\r
- * that only have one connector after remove the one connected to this removed\r
- * element.</li>\r
- * <li>Recursively remove monitors attached to the removed element</li>\r
- * </ol>\r
- * \r
- * <p>\r
- * For STR.Connections this remover will:\r
- * <ol>\r
- * <li>List all related data (monitors, mapped data)</li> \r
- * <li>Remove the connection itself</li>\r
- * <li>Remove the related data</li>\r
- * </ol>\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public class ElementRemover extends AbstractRemover {\r
-\r
- private static final boolean DEBUG = false;\r
-\r
- public ElementRemover(Resource element) {\r
- super(element);\r
- }\r
-\r
- @Override\r
- public void remove(WriteGraph graph) throws DatabaseException {\r
- // 0. Find all connections to the removed element\r
- StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
-\r
- if (graph.isInstanceOf(resource, STR.Connection)) {\r
- removeConnection(graph);\r
- } else {\r
- removeElement(graph);\r
- }\r
- }\r
-\r
- public void removeElement(WriteGraph graph) throws DatabaseException {\r
- if (DEBUG)\r
- System.out.println(this + " removing element");\r
-\r
- Set<Resource> connectors = null;\r
-\r
- StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
- DiagramResource DIA = DiagramResource.getInstance(graph);\r
-\r
- Collection<Resource> connectedTo = graph.getObjects(resource, STR.IsConnectedTo);\r
- for (Resource connector : connectedTo) {\r
- if (connectors == null)\r
- connectors = new THashSet<Resource>(connectedTo.size());\r
- connectors.add(connector);\r
- }\r
- Collection<Resource> monitors = graph.getObjects(resource, DIA.HasMonitorComponent_Inverse);\r
-\r
- if (DEBUG) {\r
- if (connectors != null)\r
- System.out.println(this + " found " + connectors.size() + " connectors connected to element");\r
- if (!monitors.isEmpty())\r
- System.out.println(this + " found " + monitors.size() + " monitors attached to element");\r
- }\r
-\r
- // 1. Disconnect element from diagrams\r
- for (Resource diagram : OrderedSetElementsPredicate.INSTANCE.getSubjects(graph, resource)) {\r
- OrderedSetUtils.remove(graph, diagram, resource);\r
- }\r
-\r
- // 2. Delete element itself\r
- EntityRemover.remove(graph, resource);\r
-\r
- // 3. Recursively remove all related degenerate connections\r
- // i.e. connections that only have one connector after remove the\r
- // one connected to this removed element.\r
- ConnectionUtil cu = null;\r
- Set<Resource> connectionsToRemove = null;\r
- if (connectors != null) {\r
- cu = new ConnectionUtil(graph);\r
- Set<Resource> touchedConnections = new THashSet<Resource>(connectors.size());\r
- for (Resource connector : connectors) {\r
- Resource connection = ConnectionUtil.tryGetConnection(graph, connector);\r
- if (connection != null)\r
- touchedConnections.add(connection);\r
- cu.removeConnectionPart(connector);\r
- }\r
- for (Resource connection : touchedConnections) {\r
- int removedConnectors = cu.removeUnusedConnectors(connection);\r
- if (DEBUG)\r
- System.out.println(this + " PRUNED " + removedConnectors + " UNUSED CONNECTORS FROM TOUCHED CONNECTION " + connection);\r
- while (true) {\r
- int removedInteriorRouteNodes = cu.removeExtraInteriorRouteNodes(connection);\r
- if (DEBUG)\r
- System.out.println(this + " PRUNED " + removedInteriorRouteNodes + " INTERIOR ROUTE NODES FROM TOUCHED CONNECTION " + connection);\r
- if (removedInteriorRouteNodes == 0)\r
- break;\r
- }\r
- int connectorCount = cu.getConnectedConnectors(connection, null).size();\r
- if (DEBUG)\r
- System.out.println(this + " \t" + connectorCount + " CONNECTORS LEFT");\r
- if (connectorCount < 2) {\r
- if (connectionsToRemove == null)\r
- connectionsToRemove = new THashSet<Resource>(touchedConnections.size());\r
- connectionsToRemove.add(connection);\r
- }\r
- }\r
- }\r
- if (connectionsToRemove != null) {\r
- for (Resource connection : connectionsToRemove) {\r
- if (DEBUG)\r
- System.out.println(this + " REMOVING connection " + connection);\r
- RemoverUtil.remove(graph, connection);\r
- }\r
- }\r
-\r
- // 4. Recursively remove monitors attached to element\r
- if (!monitors.isEmpty())\r
- for (Resource monitor : monitors)\r
- RemoverUtil.remove(graph, monitor);\r
-\r
- }\r
-\r
- public void removeConnection(WriteGraph graph) throws DatabaseException {\r
- if (DEBUG)\r
- System.out.println(this + " removing connection element");\r
-\r
- DiagramResource DIA = DiagramResource.getInstance(graph);\r
- ModelingResources MOD = ModelingResources.getInstance(graph);\r
-\r
- // 0. Get set of related data\r
- Collection<Resource> objects = new ArrayList<Resource>();\r
- for (Resource relation : new Resource[] {\r
- DIA.HasMonitorComponent_Inverse,\r
- MOD.ElementToComponent,\r
- MOD.DiagramConnectionToConnection,\r
- MOD.DiagramConnectionToConnectionSpecial\r
- }) {\r
- for (Resource object : graph.getObjects(resource, relation)) {\r
- if (!object.equals(resource))\r
- objects.add(object);\r
- }\r
- }\r
-\r
- // 1. Remove connection itself\r
- new ConnectionUtil(graph).removeConnection(resource);\r
-\r
- // 2. Recursively remove related data\r
- if (!objects.isEmpty())\r
- for (Resource object : objects)\r
- RemoverUtil.remove(graph, object);\r
- }\r
-\r
- @Override\r
- public String toString() {\r
- return getClass().getSimpleName() + resource;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2012 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.modeling.adapters;
+
+import gnu.trove.set.hash.THashSet;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Set;
+
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.utils.OrderedSetUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.adapter.Remover;
+import org.simantics.db.layer0.adapter.impl.AbstractRemover;
+import org.simantics.db.layer0.adapter.impl.EntityRemover;
+import org.simantics.db.layer0.util.RemoverUtil;
+import org.simantics.diagram.content.ConnectionUtil;
+import org.simantics.diagram.stubs.DiagramResource;
+import org.simantics.layer0.utils.binaryPredicates.OrderedSetElementsPredicate;
+import org.simantics.modeling.ModelingResources;
+import org.simantics.structural.stubs.StructuralResource2;
+
+/**
+ * A {@link Remover} implementation for removing DIA.Element instances.
+ *
+ * The implementation has separate paths for STR.Connection instances and other
+ * DIA.Element instances. For DIA.Element this remover will:
+ * <ol>
+ * <li>List connections/monitors the element is attached to</li>
+ * <li>Disconnect the element from its owner diagram(s)</li>
+ * <li>Remove the element itself with EntityRemover default logic</li>
+ * <li>Recursively remove all related degenerate connections, i.e. connections
+ * that only have one connector after remove the one connected to this removed
+ * element.</li>
+ * <li>Recursively remove monitors attached to the removed element</li>
+ * </ol>
+ *
+ * <p>
+ * For STR.Connections this remover will:
+ * <ol>
+ * <li>List all related data (monitors, mapped data)</li>
+ * <li>Remove the connection itself</li>
+ * <li>Remove the related data</li>
+ * </ol>
+ *
+ * @author Tuukka Lehtonen
+ */
+public class ElementRemover extends AbstractRemover {
+
+ private static final boolean DEBUG = false;
+
+ public ElementRemover(Resource element) {
+ super(element);
+ }
+
+ @Override
+ public void remove(WriteGraph graph) throws DatabaseException {
+ // 0. Find all connections to the removed element
+ StructuralResource2 STR = StructuralResource2.getInstance(graph);
+
+ if (graph.isInstanceOf(resource, STR.Connection)) {
+ removeConnection(graph);
+ } else {
+ removeElement(graph);
+ }
+ }
+
+ public void removeElement(WriteGraph graph) throws DatabaseException {
+ if (DEBUG)
+ System.out.println(this + " removing element");
+
+ Set<Resource> connectors = null;
+
+ StructuralResource2 STR = StructuralResource2.getInstance(graph);
+ DiagramResource DIA = DiagramResource.getInstance(graph);
+
+ Collection<Resource> connectedTo = graph.getObjects(resource, STR.IsConnectedTo);
+ for (Resource connector : connectedTo) {
+ if (connectors == null)
+ connectors = new THashSet<Resource>(connectedTo.size());
+ connectors.add(connector);
+ }
+ Collection<Resource> monitors = graph.getObjects(resource, DIA.HasMonitorComponent_Inverse);
+
+ if (DEBUG) {
+ if (connectors != null)
+ System.out.println(this + " found " + connectors.size() + " connectors connected to element");
+ if (!monitors.isEmpty())
+ System.out.println(this + " found " + monitors.size() + " monitors attached to element");
+ }
+
+ // 1. Disconnect element from diagrams
+ for (Resource diagram : OrderedSetElementsPredicate.INSTANCE.getSubjects(graph, resource)) {
+ OrderedSetUtils.remove(graph, diagram, resource);
+ }
+
+ // 2. Delete element itself
+ EntityRemover.remove(graph, resource);
+
+ // 3. Recursively remove all related degenerate connections
+ // i.e. connections that only have one connector after remove the
+ // one connected to this removed element.
+ ConnectionUtil cu = null;
+ Set<Resource> connectionsToRemove = null;
+ if (connectors != null) {
+ cu = new ConnectionUtil(graph);
+ Set<Resource> touchedConnections = new THashSet<Resource>(connectors.size());
+ for (Resource connector : connectors) {
+ Resource connection = ConnectionUtil.tryGetConnection(graph, connector);
+ if (connection != null)
+ touchedConnections.add(connection);
+ cu.removeConnectionPart(connector);
+ }
+ for (Resource connection : touchedConnections) {
+ int removedConnectors = cu.removeUnusedConnectors(connection);
+ if (DEBUG)
+ System.out.println(this + " PRUNED " + removedConnectors + " UNUSED CONNECTORS FROM TOUCHED CONNECTION " + connection);
+ while (true) {
+ int removedInteriorRouteNodes = cu.removeExtraInteriorRouteNodes(connection);
+ if (DEBUG)
+ System.out.println(this + " PRUNED " + removedInteriorRouteNodes + " INTERIOR ROUTE NODES FROM TOUCHED CONNECTION " + connection);
+ if (removedInteriorRouteNodes == 0)
+ break;
+ }
+ int connectorCount = cu.getConnectedConnectors(connection, null).size();
+ if (DEBUG)
+ System.out.println(this + " \t" + connectorCount + " CONNECTORS LEFT");
+ if (connectorCount < 2) {
+ if (connectionsToRemove == null)
+ connectionsToRemove = new THashSet<Resource>(touchedConnections.size());
+ connectionsToRemove.add(connection);
+ }
+ }
+ }
+ if (connectionsToRemove != null) {
+ for (Resource connection : connectionsToRemove) {
+ if (DEBUG)
+ System.out.println(this + " REMOVING connection " + connection);
+ RemoverUtil.remove(graph, connection);
+ }
+ }
+
+ // 4. Recursively remove monitors attached to element
+ if (!monitors.isEmpty())
+ for (Resource monitor : monitors)
+ RemoverUtil.remove(graph, monitor);
+
+ }
+
+ public void removeConnection(WriteGraph graph) throws DatabaseException {
+ if (DEBUG)
+ System.out.println(this + " removing connection element");
+
+ DiagramResource DIA = DiagramResource.getInstance(graph);
+ ModelingResources MOD = ModelingResources.getInstance(graph);
+
+ // 0. Get set of related data
+ Collection<Resource> objects = new ArrayList<Resource>();
+ for (Resource relation : new Resource[] {
+ DIA.HasMonitorComponent_Inverse,
+ MOD.ElementToComponent,
+ MOD.DiagramConnectionToConnection,
+ MOD.DiagramConnectionToConnectionSpecial
+ }) {
+ for (Resource object : graph.getObjects(resource, relation)) {
+ if (!object.equals(resource))
+ objects.add(object);
+ }
+ }
+
+ // 1. Remove connection itself
+ new ConnectionUtil(graph).removeConnection(resource);
+
+ // 2. Recursively remove related data
+ if (!objects.isEmpty())
+ for (Resource object : objects)
+ RemoverUtil.remove(graph, object);
+ }
+
+ @Override
+ public String toString() {
+ return getClass().getSimpleName() + resource;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff