Merge branch '4104' into 'master'

4104

See merge request !136

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/.ratings

 CompositionUtils.java 34c0a191bd0fb4176c94b4d61abb5c88a679d5e8 GREEN
 EMFResourceUtils.java 68e6712a52349548bf85346900b17aa65b5f0ea9 GREEN
 EcoreSerializerBase.java 0a0c2969d793d2e68094c55c8f7b0a662ef6e5d5 GREEN
-EcoreUtils.java 18416b5c214410a02eb35596fd807a1cc27d6b35 GREEN
+EcoreUtils.java 14f59a93b81dca8d75c192e4bc7c936d4eed799a GREEN
 ExtensionPointUtils.java 7ce63242b49eb9a7cd4eaadd223f5ebce1dfd75b GREEN
 HierarchicalNameComparator.java 6face1b673126701a0721af48ead2f9766c17d46 GREEN
 IdentifierUtils.java fff43dc4e84cdd89c3ece4f5d9d89aec4b0749c2 GREEN

org.fortiss.tooling.kernel/src/org/fortiss/tooling/kernel/utils/EcoreUtils.java

@@ -22,6 +22,8 @@ import static org.eclipse.emf.ecore.util.EcoreUtil.getAllContents;
 import static org.eclipse.emf.ecore.util.EcoreUtil.getRootContainer;
 import static org.eclipse.emf.ecore.util.EcoreUtil.replace;
 import static org.eclipse.emf.ecore.util.EcoreUtil.UsageCrossReferencer.find;
+import static org.fortiss.tooling.common.util.LambdaUtils.asStream;
+import static org.fortiss.tooling.common.util.LambdaUtils.isAssignableFromAny;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -268,6 +270,33 @@ public class EcoreUtils {
 		return getChildrenWith(parent, isAssignable);
 	}
 
+	/**
+	 * For the given {@code parent}, return the most nested ancestors of the given {@code type} that
+	 * does not have any ancestors of any of the given {@code admissibleSpecializations}.
+	 * 
+	 * @param parent
+	 *            the parent {@link EObject}.
+	 * @param type
+	 *            the type.
+	 * @param admissibleSpecializations
+	 *            {@link Collection} of admissible specializations of the given type.
+	 * @return a list of children.
+	 */
+	@SuppressWarnings({"rawtypes", "unchecked"})
+	public static <T extends EObject> Collection<T> getChildrenWithType(EObject parent,
+			Class<T> type, Collection<Class<? extends T>> admissibleSpecializations) {
+
+		Predicate<? super EObject> hasApplicableChildren =
+				modelElement -> asStream(modelElement.eAllContents())
+						.anyMatch(c -> isAssignableFromAny((Collection)admissibleSpecializations,
+								c.getClass()));
+
+		Stream<T> children = asStream(parent.eAllContents()).filter(type::isInstance)
+				.filter(hasApplicableChildren.negate()).map(type::cast);
+
+		return children.collect(toList());
+	}
+
 	/**
 	 * For a given {@link EObject}, recursively returns the first child that satisfies the given
 	 * {@link Predicate}.