1 files changed, 108 insertions, 0 deletions
diff --git a/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/emf/facet/efacet/ui/internal/view/QueryResultDisplayersRegistry.java b/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/emf/facet/efacet/ui/internal/view/QueryResultDisplayersRegistry.java
new file mode 100644
index 00000000000..d76f115bf47
--- /dev/null
+++ b/plugins/facet/org.eclipse.papyrus.emf.facet.efacet.ui/src/org/eclipse/emf/facet/efacet/ui/internal/view/QueryResultDisplayersRegistry.java
@@ -0,0 +1,108 @@
+/*******************************************************************************
+ * Copyright (c) 2008, 2010, 2012 Mia-Software.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Nicolas Bros (Mia-Software) - initial API and implementation
+ *    Gregoire Dupe (Mia-Software) - Bug 364325 - [Restructuring] The user must be able to navigate into a model using the Facet.
+ *******************************************************************************/
+
+package org.eclipse.emf.facet.efacet.ui.internal.view;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.emf.facet.efacet.ui.IETypedElementResultDisplayer;
+import org.eclipse.emf.facet.efacet.ui.internal.Activator;
+import org.eclipse.emf.facet.util.core.Logger;
+import org.eclipse.emf.facet.util.core.internal.exported.AbstractRegistry;
+import org.eclipse.osgi.util.NLS;
+
+/**
+ * The singleton registry of {@link IETypedElementResultDisplayer}s, which initializes
+ * the registry by reading extensions when first accessed.
+ */
+//Copied from org.eclipse.emf.facet.infra.query.ui.views.queryExecution.internal.QueryResultDisplayersRegistry
+public class QueryResultDisplayersRegistry extends AbstractRegistry {
+
+	private static final String EXTENSION_POINT_NAME = "eTypedElementResultDisplay"; //$NON-NLS-1$
+	private static final String ELEMENT_QUERY_RESULT_DISPLAYER = "displayer"; //$NON-NLS-1$
+	private static final String ATTRIBUTE_CLASS = "class"; //$NON-NLS-1$
+
+	private static QueryResultDisplayersRegistry instance = null;
+
+	private final List<IETypedElementResultDisplayer> queryResultDisplayers;
+
+	public QueryResultDisplayersRegistry() {
+		this.queryResultDisplayers = new ArrayList<IETypedElementResultDisplayer>();
+		initialize();
+	}
+
+	public static QueryResultDisplayersRegistry getInstance() {
+		if (QueryResultDisplayersRegistry.instance == null) {
+			QueryResultDisplayersRegistry.instance = new QueryResultDisplayersRegistry();
+		}
+		return QueryResultDisplayersRegistry.instance;
+	}
+
+	public List<IETypedElementResultDisplayer> getQueryResultDisplayers() {
+		return this.queryResultDisplayers;
+	}
+
+	public IETypedElementResultDisplayer getQueryResultDisplayer(final String name) {
+		for (IETypedElementResultDisplayer namedQueryResultDisplayer : this.queryResultDisplayers) {
+			if (name.equals(namedQueryResultDisplayer.getName())) {
+				return namedQueryResultDisplayer;
+			}
+		}
+		return null;
+	}
+
+	@Override
+	protected String getExtensionPointName() {
+		return QueryResultDisplayersRegistry.EXTENSION_POINT_NAME;
+	}
+
+	@Override
+	protected String getExtensionPointNamespace() {
+		return Activator.getDefault().getBundle().getSymbolicName();
+	}
+
+	@Override
+	protected void handleRootElement(final IConfigurationElement configurationElement) {
+		final String name = configurationElement.getName();
+		if (name.equalsIgnoreCase(QueryResultDisplayersRegistry.ELEMENT_QUERY_RESULT_DISPLAYER)) {
+			readQueryResultDisplayer(configurationElement);
+		} else {
+			logUnknownElement(configurationElement);
+		}
+	}
+
+	private void readQueryResultDisplayer(final IConfigurationElement configurationElement) {
+		Object queryResultDisplayerObject = null;
+		try {
+			queryResultDisplayerObject = configurationElement
+					.createExecutableExtension(QueryResultDisplayersRegistry.ATTRIBUTE_CLASS);
+		} catch (final CoreException e) {
+			Logger.logError(e, Activator.getDefault());
+		}
+		if (queryResultDisplayerObject == null) {
+			logMissingAttribute(configurationElement, QueryResultDisplayersRegistry.ATTRIBUTE_CLASS);
+			return;
+		}
+
+		if (queryResultDisplayerObject instanceof IETypedElementResultDisplayer) {
+			IETypedElementResultDisplayer queryResultDisplayer = (IETypedElementResultDisplayer) queryResultDisplayerObject;
+			this.queryResultDisplayers.add(queryResultDisplayer);
+		} else {
+			logError(configurationElement, NLS.bind("The given class is not a {0}.", //$NON-NLS-1$
+					IETypedElementResultDisplayer.class.getSimpleName()));
+		}
+
+	}
+}