YANG construct collision detection framework added
Change-Id: I1458f9e3192641f3f90c444798c31a64536ffa5d
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java
new file mode 100644
index 0000000..8d94dfe
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.onosproject.yangutils.datamodel.utils;
+
+import org.onosproject.yangutils.datamodel.CollisionDetector;
+import org.onosproject.yangutils.datamodel.YangLeaf;
+import org.onosproject.yangutils.datamodel.YangLeafList;
+import org.onosproject.yangutils.datamodel.YangLeavesHolder;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+import org.onosproject.yangutils.utils.YangConstructType;
+
+/**
+ * Utilities for data model tree.
+ */
+public final class DataModelUtils {
+
+ /**
+ * Creates a new data model tree utility.
+ */
+ private DataModelUtils() {
+ }
+
+ /**
+ * Detects the colliding identifier name in a given YANG node and its child.
+ *
+ * @param identifierName name for which collision detection is to be
+ * checked.
+ * @param dataType type of YANG node asking for detecting collision.
+ * @param node instance of calling node.
+ * @throws DataModelException a violation of data model rules.
+ */
+ public static void detectCollidingChildUtil(String identifierName, YangConstructType dataType, YangNode node)
+ throws DataModelException {
+ if (((YangLeavesHolder) node).getListOfLeaf() != null) {
+ for (YangLeaf leaf : ((YangLeavesHolder) node).getListOfLeaf()) {
+ if (leaf.getLeafName().equals(identifierName)) {
+ throw new DataModelException("YANG file error: Duplicate input identifier detected, same as leaf \""
+ + leaf.getLeafName() + "\"");
+ }
+ }
+ }
+ if (((YangLeavesHolder) node).getListOfLeafList() != null) {
+ for (YangLeafList leafList : ((YangLeavesHolder) node).getListOfLeafList()) {
+ if (leafList.getLeafName().equals(identifierName)) {
+ throw new DataModelException("YANG file error: Duplicate input identifier detected, same as leaf " +
+ "list \"" + leafList.getLeafName() + "\"");
+ }
+ }
+ }
+ node = node.getChild();
+ while ((node != null)) {
+ if (node instanceof CollisionDetector) {
+ ((CollisionDetector) node).detectSelfCollision(identifierName, dataType);
+ }
+ node = node.getNextSibling();
+ }
+ }
+}