- Add and register {@link RemoveDuplicatedAnnotationsMigrationProvider} that...

- Add and register {@link RemoveDuplicatedAnnotationsMigrationProvider} that removes duplicated {@link IAnnotatedSpecification}s from a model. These have been observed for a couple of models and might indicate an internal problem.

org.fortiss.tooling.base/trunk/plugin.xml

@@ -31,13 +31,14 @@
             uri="http://www.fortiss.org/tooling/base/model/base"
             class="org.fortiss.tooling.base.model.base.BasePackage"/>
    </extension>
-   <extension
-         point="org.fortiss.tooling.kernel.migrationProvider">
-      <migrationProvider
-            migrationProvider="org.fortiss.tooling.base.migration.IDMigrationProvider">
-         <objectClass
-               objectClass="org.fortiss.tooling.kernel.extension.data.ITopLevelElement">
-         </objectClass>
+   
+   <extension point="org.fortiss.tooling.kernel.migrationProvider">
+      <migrationProvider migrationProvider="org.fortiss.tooling.base.migration.IDMigrationProvider">
+         <objectClass objectClass="org.fortiss.tooling.kernel.extension.data.ITopLevelElement"/>
       </migrationProvider>
+      <migrationProvider migrationProvider="org.fortiss.tooling.base.migration.RemoveDuplicatedAnnotationsMigrationProvider">
+         <objectClass objectClass="org.fortiss.tooling.kernel.extension.data.ITopLevelElement"/>
+      </migrationProvider>
+
    </extension>
 </plugin>

org.fortiss.tooling.base/trunk/src/org/fortiss/tooling/base/migration/RemoveDuplicatedAnnotationsMigrationProvider.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2013 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.base.migration;
+
+import static org.fortiss.tooling.kernel.utils.EcoreUtils.getChildrenWithType;
+import static org.fortiss.tooling.kernel.utils.EcoreUtils.pickInstanceOf;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.xml.type.AnyType;
+import org.fortiss.tooling.base.ToolingBaseActivator;
+import org.fortiss.tooling.base.model.element.IAnnotatedSpecification;
+import org.fortiss.tooling.base.model.element.IModelElement;
+import org.fortiss.tooling.kernel.extension.IMigrationProvider;
+import org.fortiss.tooling.kernel.extension.data.ITopLevelElement;
+import org.fortiss.tooling.kernel.utils.LoggingUtils;
+
+/**
+ * {@link RemoveDuplicatedAnnotationsMigrationProvider} that removes duplicated
+ * {@link IAnnotatedSpecification}s from a model. These have been observed for a couple of models
+ * and might indicate an internal problem.
+ * 
+ * @author barner
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating YELLOW Hash: DEC2C0FC12FAE018A4BBE90AE21CEBF1
+ */
+public class RemoveDuplicatedAnnotationsMigrationProvider implements IMigrationProvider {
+
+	/** {@inheritDoc} */
+	@Override
+	public boolean needMigration(ITopLevelElement topLevelElement,
+			Map<EObject, AnyType> unknownFeatures) {
+
+		return doInternal(topLevelElement, false);
+	}
+
+	/**
+	 * Internal helper method to implement {@link #needMigration(ITopLevelElement, Map)} and
+	 * {@link #migrate(ITopLevelElement, Map)}.
+	 * 
+	 * @param topLevelElement
+	 *            The {@link ITopLevelElement} to be analyse / migrated.
+	 * @param migrate
+	 *            Flag whether to work in migration mode
+	 * 
+	 * @return In analysis mode, whether migration is required. Don't care in migration mode.
+	 */
+	private boolean doInternal(ITopLevelElement topLevelElement, boolean migrate) {
+
+		Set<Class<? extends IAnnotatedSpecification>> observedAnnotationClasses =
+				new HashSet<Class<? extends IAnnotatedSpecification>>();
+		for(IModelElement modelElement : getChildrenWithType(topLevelElement.getRootModelElement(),
+				IModelElement.class)) {
+			observedAnnotationClasses.clear();
+
+			for(IAnnotatedSpecification annotation : pickInstanceOf(IAnnotatedSpecification.class,
+					modelElement.getSpecifications())) {
+				Class<? extends IAnnotatedSpecification> annotationClass = annotation.getClass();
+				if(observedAnnotationClasses.contains(annotationClass)) {
+					if(migrate) {
+						modelElement.getSpecifications().remove(annotation);
+					} else {
+						return true;
+					}
+				}
+				observedAnnotationClasses.add(annotation.getClass());
+			}
+		}
+
+		return false;
+	}
+
+	/** {@inheritDoc} */
+	@Override
+	public void migrate(ITopLevelElement topLevelElement, Map<EObject, AnyType> unknownFeatures) {
+
+		doInternal(topLevelElement, true);
+
+		URI uri = topLevelElement.getRootModelElement().eResource().getURI();
+		LoggingUtils.error(ToolingBaseActivator.getDefault(),
+				"Duplicate annotations have been removed from \"" + uri.lastSegment() +
+						"\". Please report this incident since it indicates an internal problem.");
+	}
+}