diff --git a/protocols/restconf/server/utils/src/main/java/org/onosproject/protocol/restconf/server/utils/parser/json/JsonToYdtListener.java b/protocols/restconf/server/utils/src/main/java/org/onosproject/protocol/restconf/server/utils/parser/json/JsonToYdtListener.java
new file mode 100644
index 0000000..4a130f7
--- /dev/null
+++ b/protocols/restconf/server/utils/src/main/java/org/onosproject/protocol/restconf/server/utils/parser/json/JsonToYdtListener.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2016-present 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.protocol.restconf.server.utils.parser.json;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.JsonNodeType;
+import org.onosproject.protocol.restconf.server.utils.exceptions.JsonParseException;
+import org.onosproject.protocol.restconf.server.utils.parser.api.JsonListener;
+import org.onosproject.yms.ydt.YdtBuilder;
+import org.onosproject.yms.ydt.YdtContext;
+import org.slf4j.Logger;
+
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import static com.fasterxml.jackson.databind.node.JsonNodeType.ARRAY;
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static org.onosproject.yms.ydt.YdtType.MULTI_INSTANCE_NODE;
+import static org.onosproject.yms.ydt.YdtType.SINGLE_INSTANCE_NODE;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Represents default implementation of codec JSON listener.
+ */
+public class JsonToYdtListener implements JsonListener {
+
+    private static final String INPUT_FIELD_NAME = "input";
+    private static final String COLON = ":";
+    private static final int INPUT_FIELD_LENGTH = 2;
+    private static final String E_UNSUP_TYPE = "Unsupported node type %s " +
+            "field name is %s fieldName";
+
+    private Logger log = getLogger(getClass());
+
+    private YdtBuilder ydtBuilder;
+    private String defaultMultiInsNodeName;
+    private YdtContext rpcModule;
+
+    /**
+     * Creates a listener for the process of a Json Object, the listener will
+     * try to transfer the JSON object to a Ydt builder.
+     *
+     * @param ydtBuilder the YDT builder to build a YDT object
+     */
+    public JsonToYdtListener(YdtBuilder ydtBuilder) {
+        this.ydtBuilder = ydtBuilder;
+    }
+
+    @Override
+    public void enterJsonNode(String fieldName, JsonNode node) {
+        if (isNullOrEmpty(fieldName)) {
+            if (!isNullOrEmpty(defaultMultiInsNodeName)) {
+                ydtBuilder.addChild(defaultMultiInsNodeName, null,
+                                    MULTI_INSTANCE_NODE);
+            }
+            return;
+        }
+        JsonNodeType nodeType = node.getNodeType();
+        switch (nodeType) {
+            case OBJECT:
+                processObjectNode(fieldName);
+                break;
+
+            case ARRAY:
+                processArrayNode(fieldName, node);
+                break;
+
+            //TODO for now, just process the following three node type
+            case STRING:
+            case NUMBER:
+            case BOOLEAN:
+                ydtBuilder.addLeaf(fieldName, null, node.asText());
+                break;
+
+            case BINARY:
+            case MISSING:
+            case NULL:
+            case POJO:
+                log.debug("Unimplemented node type {}", nodeType);
+                break;
+
+            default:
+                throw new JsonParseException(String.format(E_UNSUP_TYPE,
+                                                           nodeType, fieldName));
+        }
+    }
+
+    @Override
+    public void exitJsonNode(JsonNode jsonNode) {
+        if (jsonNode.getNodeType() == ARRAY) {
+            return;
+        }
+        ydtBuilder.traverseToParent();
+        YdtContext curNode = ydtBuilder.getCurNode();
+        //if the current node is the RPC node, then should go to the father
+        //for we have enter the RPC node and Input node at the same time
+        //and the input is the only child of RPC node.
+
+        if (curNode == null) {
+            return;
+        }
+        String name = curNode.getName();
+        if (rpcModule != null && name.equals(rpcModule.getName())) {
+            ydtBuilder.traverseToParent();
+        }
+    }
+
+    private void processObjectNode(String fieldName) {
+        String[] segments = fieldName.split(COLON);
+        Boolean isLastInput = segments.length == INPUT_FIELD_LENGTH &&
+                segments[INPUT_FIELD_LENGTH - 1].equals(INPUT_FIELD_NAME);
+        int first = 0;
+        int second = 1;
+        if (isLastInput) {
+            ydtBuilder.addChild(segments[first], null, SINGLE_INSTANCE_NODE);
+            rpcModule = ydtBuilder.getCurNode();
+            ydtBuilder.addChild(segments[second], null, SINGLE_INSTANCE_NODE);
+        } else {
+            ydtBuilder.addChild(fieldName, null, SINGLE_INSTANCE_NODE);
+        }
+    }
+
+    private void processArrayNode(String fieldName, JsonNode node) {
+        ArrayNode arrayNode = (ArrayNode) node;
+        Set<String> sets = new HashSet<>();
+        Iterator<JsonNode> elements = arrayNode.elements();
+        boolean isLeafList = true;
+        while (elements.hasNext()) {
+            JsonNode element = elements.next();
+            JsonNodeType eleType = element.getNodeType();
+
+            if (eleType == JsonNodeType.STRING ||
+                    eleType == JsonNodeType.NUMBER ||
+                    eleType == JsonNodeType.BOOLEAN) {
+                sets.add(element.asText());
+            } else {
+                isLeafList = false;
+            }
+        }
+        if (isLeafList) {
+            //leaf-list
+            ydtBuilder.addLeaf(fieldName, null, sets);
+        } else {
+            this.defaultMultiInsNodeName = fieldName;
+        }
+    }
+}