1 files changed, 44 insertions, 0 deletions
diff --git a/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlWalker.java b/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlWalker.java
new file mode 100644
index 000000000..3835faa7e
--- /dev/null
+++ b/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlWalker.java
@@ -0,0 +1,44 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CCSDK
+ * ================================================================================
+ * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.sli.plugins.yangserializers.dfserializer;
+
+import org.dom4j.Element;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+
+/**
+ * Abstraction of an entity which provides interface for XML walk. This
+ * interface serves as a common tool for anyone who needs to parse the XML
+ * node with depth-first algorithm.
+ */
+public interface XmlWalker {
+
+    /**
+     * Walks the XML data tree. Protocols implement XML listener service and
+     * walks the XML tree with input as implemented object. XML walker
+     * provides call back to the implemented methods.
+     *
+     * @param listener   XML listener implemented by the protocol
+     * @param xmlElement root element of the XML data tree
+     * @throws SvcLogicException when walking the XML node fails
+     */
+    void walk(XmlListener listener, Element xmlElement) throws
+            SvcLogicException;
+}