+/*******************************************************************************\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.modeling.ui.modelBrowser2.model;\r
+\r
+import java.util.List;\r
+\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.simantics.browsing.ui.common.node.IDeletable;\r
+import org.simantics.browsing.ui.common.node.IDropTargetNode;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.variable.VariableReference;\r
+import org.simantics.modeling.PropertyVariables;\r
+import org.simantics.modeling.subscription.AddSubscriptionItems;\r
+import org.simantics.modeling.utils.VariableReferences;\r
+import org.simantics.structural.ui.modelBrowser.nodes.AbstractNode;\r
+import org.simantics.ui.SimanticsUI;\r
+import org.simantics.utils.datastructures.Callback;\r
+import org.simantics.utils.ui.ErrorLogger;\r
+import org.simantics.utils.ui.ISelectionUtils;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SubscriptionNode extends AbstractNode implements IDeletable, IDropTargetNode {\r
+\r
+ public SubscriptionNode(Resource resource) {\r
+ super(resource);\r
+ }\r
+\r
+ @Override\r
+ public void drop(Object data) {\r
+ if (!(data instanceof ISelection))\r
+ return;\r
+ final List<PropertyVariables> vars = ISelectionUtils.filterSelection((ISelection) data, PropertyVariables.class);\r
+ if (!vars.isEmpty()) {\r
+ List<VariableReference> references;\r
+ try {\r
+ references = SimanticsUI.getSession().syncRequest(VariableReferences.toReferences(vars));\r
+ addSubscriptions(references);\r
+ } catch (DatabaseException e) {\r
+ ErrorLogger.defaultLogError(e);\r
+ }\r
+ } else {\r
+ final List<VariableReference> references = ISelectionUtils.filterSelection((ISelection) data, VariableReference.class);\r
+ if (!references.isEmpty()) {\r
+ addSubscriptions(references);\r
+ }\r
+ }\r
+ }\r
+\r
+ private void addSubscriptions(List<VariableReference> references) {\r
+ SimanticsUI.getSession().asyncRequest(new AddSubscriptionItems(resource, references), new Callback<DatabaseException>() {\r
+ @Override\r
+ public void run(DatabaseException e) {\r
+ if (e != null)\r
+ ErrorLogger.defaultLogError(e);\r
+ }\r
+ });\r
+ }\r
+\r
+}\r