1 files changed, 93 insertions, 0 deletions
diff --git a/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/SerializerHelper.java b/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/SerializerHelper.java
new file mode 100644
index 00000000..4e6d2944
--- /dev/null
+++ b/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/SerializerHelper.java
@@ -0,0 +1,93 @@
+/*-
+ * ============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 java.util.Map;
+
+/**
+ * Abstraction of an entity which helps the data format serializers to obtain
+ * schema context details and to build properties from data.
+ *
+ * @param <T> type of schema node
+ */
+public abstract class SerializerHelper<T> {
+
+    private T rootSchema;
+    private String rootURI;
+
+    protected SerializerHelper(T t, String uri) {
+        rootSchema = t;
+    }
+
+    /**
+     * Returns root schema context node.
+     *
+     * @return root schema context node
+     */
+    protected abstract T getRootContext();
+
+    /**
+     * Returns current schema context node.
+     *
+     * @return current schema context node
+     */
+    protected abstract T getCurContext();
+
+    /**
+     * Returns child schema context node.
+     *
+     * @return child schema context node
+     */
+    protected abstract T getChildContext(T t, String name, String namespace);
+
+    /**
+     * Returns type of node
+     * @param t node
+     * @return node type
+     */
+    protected abstract NodeType getNodeType(T t);
+
+    /**
+     * Adds a node to current tree.
+     *
+     * @param name name of node
+     * @param namespace namespace of node, it can be either module name or
+     * namespace, null indicates parent namespace
+     * @param value value of node, in case it's leaf/leaf-list node
+     * @param valNamespace value namespace for identityref, could be module
+     * name or namespace
+     * @param type type of node if known like in case of JSON
+     */
+    protected abstract void addNode(String name, String namespace, String value,
+        String valNamespace, NodeType type);
+
+    /**
+     * Exits the node, in case if it's leaf node add to properties map.
+     */
+    protected abstract void exitNode();
+
+    /**
+     * Returns the properties built corresponding to data.
+     *
+     * @return properties map
+     */
+    protected abstract Map<String, String> getProperties();
+}