Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.graph.impl / src / org / simantics / browsing / ui / graph / impl / contributor / viewpoint / ViewpointContributorImpl.java

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/viewpoint/ViewpointContributorImpl.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/viewpoint/ViewpointContributorImpl.java
new file mode 100644 (file)
index 0000000..2595e97
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/viewpoint/ViewpointContributorImpl.java
@@ -0,0 +1,111 @@
+/*******************************************************************************\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.browsing.ui.graph.impl.contributor.viewpoint;\r
+\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.Tester;\r
+import org.simantics.browsing.ui.common.NodeContextUtil;\r
+import org.simantics.browsing.ui.content.Contributor;\r
+import org.simantics.browsing.ui.content.ViewpointContribution;\r
+import org.simantics.browsing.ui.content.ViewpointContributionFactory;\r
+import org.simantics.browsing.ui.graph.impl.contribution.ViewpointContributionImpl;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.exception.InvalidVariableException;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.operation.Layer0X;\r
+import org.simantics.utils.ReflectionUtils;\r
+\r
+abstract public class ViewpointContributorImpl<T> implements Contributor<ViewpointContributionFactory> {\r
+\r
+    abstract public Collection<?> getContribution(ReadGraph graph, T input) throws DatabaseException;\r
+\r
+    abstract public String getViewpointId();\r
+\r
+    final private Class<?> clazz;\r
+    \r
+    protected Layer0 L0;\r
+    protected Layer0X L0X;\r
+\r
+    @Override\r
+    public Tester getNodeContextTester() {\r
+        return null;\r
+    }\r
+\r
+    public ViewpointContributorImpl() {\r
+        clazz = ReflectionUtils.getSingleParameterType(getClass());\r
+    }\r
+\r
+    public ViewpointContributorImpl(Class<?> clazz) {\r
+        this.clazz = clazz;\r
+    }\r
+\r
+    @Override\r
+    public ViewpointContributionFactory getFactory() {\r
+\r
+        return new ViewpointContributionFactory() {\r
+\r
+            @Override\r
+            public String getViewpointId() {\r
+                return ViewpointContributorImpl.this.getViewpointId();\r
+            }\r
+\r
+            @Override\r
+            public ViewpointContribution create(final PrimitiveQueryUpdater updater, NodeContext context, final ViewpointContributionKey key) {\r
+\r
+                return new ViewpointContributionImpl(updater, context, key) {\r
+\r
+                    @SuppressWarnings("unchecked")\r
+                    @Override\r
+                    public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException {\r
+\r
+                        try {\r
+                            T input = (T)context.getConstant(BuiltinKeys.INPUT);\r
+                            L0 = Layer0.getInstance(graph);\r
+                            L0X = Layer0X.getInstance(graph);\r
+                            return NodeContextUtil.toContextCollectionWithInput(ViewpointContributorImpl.this, ViewpointContributorImpl.this.getContribution(graph, input));\r
+                        } catch (InvalidVariableException e) {\r
+                            return Collections.emptyList();\r
+                        }\r
+\r
+                    }\r
+\r
+                    @Override\r
+                    public Tester getNodeContextTester() {\r
+                        return ViewpointContributorImpl.this.getNodeContextTester();\r
+                    }\r
+\r
+                    @Override\r
+                    public Class<?> getInputClass() {\r
+                        return ViewpointContributorImpl.this.getInputClass();\r
+                    }\r
+\r
+                };\r
+\r
+            }\r
+\r
+        };\r
+\r
+    }\r
+\r
+    @Override\r
+    public Class<?> getInputClass() {\r
+        return clazz;\r
+    }\r
+\r
+}\r