Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.model / src / org / simantics / browsing / ui / model / nodetypes / SpecialNodeType.java

diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/nodetypes/SpecialNodeType.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/nodetypes/SpecialNodeType.java
new file mode 100644 (file)
index 0000000..9020abd
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/nodetypes/SpecialNodeType.java
@@ -0,0 +1,127 @@
+/*******************************************************************************\r
+ * Copyright (c) 2010, 2011 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.browsing.ui.model.nodetypes;\r
+\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+\r
+import org.eclipse.core.runtime.Platform;\r
+import org.osgi.framework.Bundle;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.common.NodeContextBuilder;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Statement;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.ui.selection.WorkbenchSelectionElement;\r
+import org.simantics.viewpoint.ontology.ViewpointResource;\r
+\r
+public class SpecialNodeType implements NodeType {\r
+    public Resource resource;\r
+    Class<?> contentType;\r
+    \r
+    public SpecialNodeType(Resource resource, Class<?> contentType) {\r
+        this.resource = resource;\r
+        this.contentType = contentType;\r
+    }\r
+    \r
+    public static SpecialNodeType create(ReadGraph g, Resource r) throws DatabaseException {\r
+        ViewpointResource vr = ViewpointResource.getInstance(g);\r
+        String contentTypeName = g.getPossibleRelatedValue(r, vr.HasContentType);\r
+        Class<?> contentType;\r
+        if("Resource".equals(contentTypeName))\r
+            contentType = Resource.class;\r
+        else if("Statement".equals(contentTypeName))\r
+            contentType = Statement.class;\r
+        else if("Variable".equals(contentTypeName))\r
+            contentType = Variable.class;\r
+        else {\r
+            contentType = Object.class;\r
+            if(contentTypeName != null)\r
+                try {\r
+                    String bundleId = g.getPossibleRelatedValue(r, vr.HasBundle);\r
+                    Bundle bundle = null;\r
+                    if (bundleId != null) {\r
+                        bundle = Platform.getBundle(bundleId);\r
+                        if (bundle == null)\r
+                            System.err.println("Referenced bundle '" + bundleId + "' not found in platform.");\r
+                    }\r
+                    if (bundle != null)\r
+                        contentType = bundle.loadClass(contentTypeName);\r
+                    else\r
+                        contentType = Class.forName(contentTypeName);\r
+                } catch (ClassNotFoundException e) {\r
+                    System.err.println("Unknown content type " + contentTypeName);\r
+                }\r
+            else\r
+                System.err.println("Content type is NULL.");\r
+        }\r
+        return new SpecialNodeType(r, contentType);\r
+    }\r
+\r
+    @Override\r
+    public NodeContext createNodeContext(ReadGraph graph, Object content)\r
+            throws DatabaseException {\r
+        if(contentType.isInstance(content))\r
+            return NodeContextBuilder.buildWithData(KEY_SEQUENCE,\r
+                    new Object[] {content, this}\r
+            );\r
+        else\r
+            return null;\r
+    }\r
+\r
+    @Override\r
+    public Class<?> getContentType() {\r
+        return contentType;\r
+    }\r
+\r
+    @Override\r
+    public int hashCode() {\r
+        return resource.hashCode();\r
+    }\r
+\r
+    @Override\r
+    public boolean equals(Object obj) {\r
+        if (this == obj)\r
+            return true;\r
+        if (obj == null)\r
+            return false;\r
+        if (getClass() != obj.getClass())\r
+            return false;\r
+        SpecialNodeType other = (SpecialNodeType) obj;\r
+        return resource.equals(other.resource);\r
+    }\r
+\r
+    @Override\r
+    public boolean inherits(ReadGraph graph, NodeType superType) {\r
+        // Special node type does not support inheritance\r
+        return equals(superType);\r
+    }\r
+\r
+    @Override\r
+    public Collection<NodeType> getSuper(ReadGraph g) {\r
+        return Collections.emptyList();\r
+    }\r
+    \r
+    @Override\r
+    public String toString(ReadGraph graph) throws DatabaseException {\r
+        return "(" + NameUtils.getSafeName(graph, resource) + ")";\r
+    }\r
+\r
+    @Override\r
+    public WorkbenchSelectionElement getWorkbenchSelectionElement(NodeContext context) {\r
+        return null;\r
+    }\r
+\r
+}\r