Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.charts / src / org / simantics / charts / ui / SubscriptionDropActionFactory.java

diff --git a/bundles/org.simantics.charts/src/org/simantics/charts/ui/SubscriptionDropActionFactory.java b/bundles/org.simantics.charts/src/org/simantics/charts/ui/SubscriptionDropActionFactory.java
new file mode 100644 (file)
index 0000000..fe865cb
--- /dev/null
+++ b/bundles/org.simantics.charts/src/org/simantics/charts/ui/SubscriptionDropActionFactory.java
@@ -0,0 +1,133 @@
+/*******************************************************************************\r
+ * Copyright (c) 2014 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.charts.ui;\r
+\r
+import java.util.Collections;\r
+import java.util.HashSet;\r
+import java.util.List;\r
+import java.util.Set;\r
+\r
+import org.simantics.Simantics;\r
+import org.simantics.browsing.ui.common.ErrorLogger;\r
+import org.simantics.databoard.type.Datatype;\r
+import org.simantics.databoard.util.ObjectUtils;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.WriteRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.SelectionHints;\r
+import org.simantics.db.layer0.adapter.DropActionFactory;\r
+import org.simantics.db.layer0.request.PossibleActiveVariableFromVariable;\r
+import org.simantics.db.layer0.request.PossibleModel;\r
+import org.simantics.db.layer0.variable.RVI;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.db.layer0.variable.VariableReference;\r
+import org.simantics.db.layer0.variable.Variables;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.modeling.ModelingResources;\r
+import org.simantics.modeling.PropertyVariables;\r
+import org.simantics.modeling.PropertyVariablesImpl;\r
+import org.simantics.modeling.utils.VariableReferences;\r
+import org.simantics.utils.datastructures.Callback;\r
+import org.simantics.utils.datastructures.collections.CollectionUtils;\r
+import org.simantics.utils.ui.ISelectionUtils;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SubscriptionDropActionFactory implements DropActionFactory {\r
+\r
+    @Override\r
+    public Runnable create(ReadGraph g, Object target, Object source, int operation) throws DatabaseException {\r
+        //System.out.println("DROP: " + source + " -> " + target);\r
+\r
+        final Resource subscription = ISelectionUtils.getSinglePossibleKey(target, SelectionHints.KEY_MAIN, Resource.class);\r
+        if (subscription == null)\r
+            return null;\r
+        Resource targetModel = g.syncRequest(new PossibleModel(subscription));\r
+\r
+        if(source instanceof RVI) {\r
+\r
+               RVI rvi = (RVI)source;\r
+               List<VariableReference> refs = CollectionUtils.toList(new VariableReference(rvi, getDatatype(g, targetModel, rvi), null));\r
+               if (!refs.isEmpty())\r
+                       return addSubscriptions(g, subscription, refs, Collections.<Resource>emptySet());\r
+               \r
+        } else {\r
+        \r
+               List<PropertyVariables> vars = ISelectionUtils.getPossibleKeys(source, SelectionHints.KEY_MAIN, PropertyVariables.class);\r
+               if (!vars.isEmpty()) {\r
+                       // FIXME: this is a hack for indexed value support\r
+                       vars = PropertyVariablesImpl.resolve(g, vars);\r
+\r
+                       List<VariableReference> references = g.syncRequest(VariableReferences.toReferences(targetModel, vars));\r
+                       if (!references.isEmpty())\r
+                               return addSubscriptions(g, subscription, references, Collections.<Resource>emptySet());\r
+               } else {\r
+                       List<Resource> srcs = ISelectionUtils.getPossibleKeys(source, SelectionHints.KEY_MAIN, Resource.class);\r
+                       ModelingResources MOD = ModelingResources.getInstance(g);\r
+                       Set<Resource> movedItems = new HashSet<Resource>();\r
+                       for (Resource src : srcs) {\r
+                               if (g.isInstanceOf(src, MOD.Subscription_Item)) {\r
+                                       Resource model = g.syncRequest(new PossibleModel(src));\r
+                                       if (ObjectUtils.objectEquals(targetModel, model))\r
+                                               movedItems.add(src);\r
+                               }\r
+                       }\r
+                       if (!movedItems.isEmpty())\r
+                               return addSubscriptions(g, subscription, Collections.<VariableReference>emptyList(), movedItems);\r
+               }\r
+        \r
+        }\r
+\r
+        return null;\r
+    }\r
+\r
+    private Runnable addSubscriptions(ReadGraph graph, final Resource subscription, final List<VariableReference> references,\r
+            final Set<Resource> movedSubscriptionItems) throws DatabaseException {\r
+        final AddVariableToChartAction action = new AddVariableToChartAction(null, subscription, references);\r
+        action.init(graph);\r
+        return new Runnable() {\r
+            @Override\r
+            public void run() {\r
+                action.run();\r
+                if(!movedSubscriptionItems.isEmpty()) {\r
+                    Simantics.getSession().asyncRequest(new WriteRequest() {\r
+                        @Override\r
+                        public void perform(WriteGraph graph) throws DatabaseException {\r
+                            Layer0 L0 = Layer0.getInstance(graph);\r
+                            for (Resource item : movedSubscriptionItems) {\r
+                                graph.deny(item, L0.PartOf);\r
+                                graph.claim(subscription, L0.ConsistsOf, item);\r
+                            }\r
+                        }\r
+                    }, 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
+    }\r
+\r
+    static Datatype getDatatype(ReadGraph graph, Resource resource, RVI rvi) throws DatabaseException {\r
+        Variable configuration = Variables.getConfigurationContext(graph, resource);\r
+        Variable active = graph.syncRequest(new PossibleActiveVariableFromVariable(configuration));\r
+        Variable var = rvi.resolve(graph, active != null ? active : configuration);\r
+        return var.getDatatype(graph);\r
+    }\r
+\r
+}\r