1 files changed, 61 insertions, 0 deletions
diff --git a/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/OOTrafo.java b/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/OOTrafo.java
new file mode 100644
index 00000000000..f96ccad4765
--- /dev/null
+++ b/extraplugins/qompass/designer/org.eclipse.papyrus.qompass.designer.core/src/org/eclipse/papyrus/qompass/designer/core/extensions/OOTrafo.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2011 CEA LIST.
+ * 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:
+ *     CEA LIST - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.papyrus.qompass.designer.core.extensions;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtensionRegistry;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.papyrus.qompass.designer.core.Activator;
+import org.eclipse.papyrus.qompass.designer.core.Messages;
+
+/**
+ * Support for different OO transformation via the Eclipse extension
+ * mechanism
+ */
+public class OOTrafo {
+
+	public static final String IOO_TRANSFORMATION_ID = Activator.PLUGIN_ID + ".ooTransformation"; //$NON-NLS-1$
+
+	/**
+	 * Get an OOTransformation for a given ID (language)
+	 * 
+	 * @param iOOTrafoID
+	 *            the ID of an OO Transformation
+	 * @return
+	 */
+	public static IOOTrafo getOOTrafo(String iOOTrafoID) {
+		IExtensionRegistry reg = Platform.getExtensionRegistry();
+		IConfigurationElement[] configElements = reg.getConfigurationElementsFor(IOO_TRANSFORMATION_ID);
+		for (IConfigurationElement configElement : configElements) {
+			try {
+				final String iOOTrafoIDext = configElement.getAttribute("ooTrafoID"); //$NON-NLS-1$
+				if (iOOTrafoIDext == null) {
+					throw new RuntimeException(String.format(Messages.InstanceConfigurator_InvalidPluginExtension,
+							iOOTrafoID));
+				}
+				if (iOOTrafoIDext.endsWith("." + iOOTrafoID)) { //$NON-NLS-1$
+					// TODO: cache returned instance (avoid creating a new
+					// instance each time => more efficient, no need for static
+					// attributes)
+					final Object obj = configElement.createExecutableExtension("class"); //$NON-NLS-1$
+					if (obj instanceof IOOTrafo) {
+						return (IOOTrafo) obj;
+					}
+				}
+			} catch (CoreException exception) {
+				exception.printStackTrace();
+			}
+		}
+		return null;
+	}
+}