Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.ui / src / org / simantics / ui / dnd / ResourceTransferData.java

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/dnd/ResourceTransferData.java b/bundles/org.simantics.ui/src/org/simantics/ui/dnd/ResourceTransferData.java
new file mode 100644 (file)
index 0000000..999e3c1
--- /dev/null
+++ b/bundles/org.simantics.ui/src/org/simantics/ui/dnd/ResourceTransferData.java
@@ -0,0 +1,165 @@
+/*******************************************************************************\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.ui.dnd;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.List;\r
+\r
+import org.eclipse.ui.IMemento;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.SessionReference;\r
+import org.simantics.db.common.ResourceArray;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.SerialisationSupport;\r
+import org.simantics.utils.ui.workbench.StringMemento;\r
+\r
+/**\r
+ * Transferable that contains a set of resource path references.\r
+ *\r
+ * @author Toni Kalajainen\r
+ */\r
+public class ResourceTransferData extends ArrayList<ResourceArray> {\r
+\r
+    private static final long serialVersionUID = -6980850210973439012L;\r
+    private String purpose;\r
+\r
+    public ResourceTransferData() {\r
+        super();\r
+    }\r
+\r
+    public ResourceTransferData(Collection<? extends ResourceArray> c) {\r
+        super(c);        // TODO Auto-generated constructor stub\r
+    }\r
+\r
+    public ResourceTransferData(ResourceArray...arrays) {\r
+        super();\r
+        addAll(arrays);\r
+    }\r
+\r
+    public ResourceTransferData(Session s, Collection<? extends ResourceArray> c) {\r
+        super(c);        // TODO Auto-generated constructor stub\r
+    }\r
+\r
+    public ResourceTransferData(Session s, ResourceArray...arrays) {\r
+        super();\r
+        addAll(arrays);\r
+    }\r
+\r
+    public ResourceTransferData(SessionReference s, Collection<? extends ResourceArray> c) {\r
+        super(c);        // TODO Auto-generated constructor stub\r
+    }\r
+\r
+    public ResourceTransferData(SessionReference s, ResourceArray...arrays) {\r
+        super();\r
+        addAll(arrays);\r
+    }\r
+\r
+    public ResourceTransferData(SessionReference s) {\r
+        super();\r
+    }\r
+\r
+    public ResourceTransferData(Session s) {\r
+        super();\r
+    }\r
+\r
+    public String getPurpose() {\r
+        return purpose;\r
+    }\r
+\r
+    public void setPurpose(String purpose) {\r
+        this.purpose = purpose;\r
+    }\r
+\r
+    public void addAll(ResourceArray[] array)\r
+    {\r
+        for (ResourceArray a : array)\r
+            add(a);\r
+    }\r
+\r
+    public ResourceArray[] toResourceArrayArray()\r
+    {\r
+        return toArray(ResourceArray.NONE);\r
+    }\r
+\r
+    //////////// SERIALIZATION //////////////\r
+\r
+    /** Key to resource array of memento child */\r
+    private static final String RES_KEY = "res";\r
+    /** Key to purpose string of a memento */\r
+    private static final String PURPOSE_KEY = "purpose";\r
+\r
+    public void readFromMemento(SerialisationSupport serializer, IMemento memento)\r
+    throws DatabaseException\r
+    {\r
+//        String sessionReference = memento.getString("SessionReference");\r
+\r
+        String purpose = memento.getString(PURPOSE_KEY);\r
+\r
+        List<ResourceArray> res = new ArrayList<ResourceArray>();\r
+        for (IMemento child : memento.getChildren(RES_KEY))\r
+        {\r
+            ResourceArray array = readResourceArrayFromMemento(serializer, child);\r
+            res.add(array);\r
+        }\r
+\r
+        addAll(res);\r
+//        setSessionReference(sessionReference);\r
+        setPurpose(purpose);\r
+    }\r
+\r
+    public static ResourceArray readResourceArrayFromMemento(SerialisationSupport serializer, IMemento memento)\r
+    throws DatabaseException\r
+    {\r
+        List<Resource> result = new ArrayList<Resource>();\r
+        int index = 0;\r
+        while (memento.getString(""+index)!=null) {\r
+            String randomAccessId = memento.getString(""+index);\r
+            long id = Long.parseLong(randomAccessId);\r
+            Resource r = serializer.getResource(id);\r
+            result.add(r);\r
+            index++;\r
+        }\r
+        return new ResourceArray( result );\r
+    }\r
+\r
+    public void writeToMemento(SerialisationSupport serializer, IMemento memento)\r
+    throws DatabaseException\r
+    {\r
+        int index = 0;\r
+        if (purpose != null)\r
+            writePurpose(memento);\r
+        for (ResourceArray array : this)\r
+        {\r
+            String id = ""+index++;\r
+            StringMemento child = (StringMemento) memento.createChild(RES_KEY, id);\r
+            writeResourceArrayToMemento(serializer, array, child);\r
+        }\r
+    }\r
+\r
+    private void writePurpose(IMemento memento) {\r
+        assert purpose != null;\r
+        memento.putString(PURPOSE_KEY, purpose);\r
+    }\r
+\r
+    public static void writeResourceArrayToMemento(SerialisationSupport serializer, ResourceArray array, IMemento sm)\r
+    throws DatabaseException\r
+    {\r
+        for (int i=0; i<array.resources.length; i++)\r
+        {\r
+            Resource r = array.resources[i];\r
+            String rai = "" + serializer.getRandomAccessId(r);\r
+            sm.putString(""+i, rai);\r
+        }\r
+    }\r
+}\r