added transformation util

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/util/TransformationUtil.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2011 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.kernel.util;
+
+import java.util.List;
+
+import org.eclipse.emf.ecore.EObject;
+import org.fortiss.tooling.kernel.extension.data.ITransformationContext;
+import org.fortiss.tooling.kernel.extension.data.TransformationProviderChain;
+import org.fortiss.tooling.kernel.extension.exception.ChainTransformationFailedException;
+import org.fortiss.tooling.kernel.service.ITransformationService;
+
+/**
+ * Utility methods for the {@link ITransformationService}.
+ * 
+ * @author hoelzl
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating RED Hash:
+ */
+public final class TransformationUtil {
+	/**
+	 * Searches a transformation chain for the given model element and the
+	 * target class and returns the transformation result.
+	 */
+	@SuppressWarnings("unchecked")
+	public static <T extends Object> T createTransformedObjectFor(
+			EObject modelElement, Class<T> targetClass,
+			ITransformationContext context)
+			throws ChainTransformationFailedException {
+		List<TransformationProviderChain> chainList = ITransformationService.INSTANCE
+				.getTransformationProviderChain(modelElement.getClass(),
+						targetClass, context);
+		if (!chainList.isEmpty()) {
+			return (T) chainList.get(0).transform(modelElement, context);
+		}
+		return null;
+	}
+
+}