Adding code in order to register the default codec with YMS in restconf client.

Change-Id: Id7fd2af7b1a4b4ae58aca9e75084c223045c6953

protocols/restconf/client/ctl/BUCK

@@ -11,6 +11,8 @@ COMPILE_DEPS = [
     '//lib:javax.inject',
     '//protocols/restconf/client/api:onos-protocols-restconf-client-api',
     '//protocols/rest/api:onos-protocols-rest-api',
+    '//apps/yms/api:onos-apps-yms-api',
+    '//protocols/restconf/server/utils:onos-protocols-restconf-server-utils',
 ]
 
 osgi_jar_with_tests (

protocols/restconf/client/ctl/pom.xml

@@ -67,6 +67,17 @@
             <version>${project.version}</version>
             <type>bundle</type>
         </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-restconf-server-utils</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
+            <artifactId>onos-app-yms-api</artifactId>
+            <version>${project.version}</version>
+            <type>bundle</type>
+        </dependency>
   </dependencies>
 
     <build>

protocols/restconf/client/ctl/src/main/java/org/onosproject/protocol/restconf/ctl/JsonYdtCodec.java

@@ -0,0 +1,123 @@
+/*
+ * 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.protocol.restconf.ctl;
+
+import static org.onosproject.yms.ydt.YdtContextOperationType.NONE;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.io.IOUtils;
+import org.onosproject.protocol.restconf.server.utils.parser.json.ParserUtils;
+import org.onosproject.yms.ych.YangCompositeEncoding;
+import org.onosproject.yms.ych.YangDataTreeCodec;
+import org.onosproject.yms.ydt.YdtBuilder;
+import org.onosproject.yms.ydt.YmsOperationType;
+import org.onosproject.yms.ymsm.YmsService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+
+/**
+ * JSON/YDT Codec implementation.
+ */
+public class JsonYdtCodec implements YangDataTreeCodec {
+    private static final String RESTCONF_ROOT = "restconf/data";
+
+    protected final YmsService ymsService;
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    public JsonYdtCodec(YmsService service) {
+        ymsService = service;
+    }
+
+    @Override
+    public String encodeYdtToProtocolFormat(YdtBuilder builder,
+                                            YmsOperationType protocolOperation) {
+        String json = ParserUtils.convertYdtToJson(builder.getRootNode().getName(),
+                                                   builder.getRootNode(),
+                                                   ymsService.getYdtWalker())
+                                 .textValue();
+        return json;
+     }
+
+    @Override
+    public YangCompositeEncoding encodeYdtToCompositeProtocolFormat(YdtBuilder builder,
+                                                                    YmsOperationType protocolOperation) {
+        // Mainly for POST/PUT operation.
+        // YdtBuilder/YdtContext has YdtContextType NONE for URI,
+        // YdtContextType CREATE/MERGE/REPLACE for Resource data.
+
+        // TODO: Implement this method in Release Ibis for TE Tunnel.
+
+        return null;
+    }
+
+    @Override
+    public YdtBuilder decodeProtocolDataToYdt(String protocolData,
+                                              Object schemaRegistryForYdt,
+                                              YmsOperationType opType) {
+        // Get a new builder
+        YdtBuilder builder = ymsService.getYdtBuilder(RESTCONF_ROOT,
+                                                      null,
+                                                      opType,
+                                                      schemaRegistryForYdt);
+        ParserUtils.convertJsonToYdt(getObjectNode(protocolData), builder);
+        return builder;
+    }
+
+    @Override
+    public YdtBuilder decodeCompositeProtocolDataToYdt(YangCompositeEncoding protocolData,
+                                                       Object schemaRegistryForYdt,
+                                                       YmsOperationType opType) {
+        // opType should be QUERY_REPLY
+        // Get a new builder
+        YdtBuilder builder = ymsService.getYdtBuilder(RESTCONF_ROOT,
+                                                      null,
+                                                      opType,
+                                                      schemaRegistryForYdt);
+        // Convert the URI to ydtBuilder
+
+        // YdtContextOperationType should be NONE for URI in QUERY_RESPONSE.
+        ParserUtils.convertUriToYdt(protocolData.getResourceIdentifier(), builder, NONE);
+        // Set default operation type for the payload node, is this for resource data?
+        // NULL/EMPTY for Resource data
+        builder.setDefaultEditOperationType(null);
+
+        // Convert the payload json body to ydt
+        ParserUtils.convertJsonToYdt(getObjectNode(protocolData.getResourceInformation()), builder);
+        return builder;
+    }
+
+    // Returns an ObjectNode from s JSON string.
+    private ObjectNode getObjectNode(String json) {
+        InputStream stream = IOUtils.toInputStream(json);
+
+        ObjectNode rootNode;
+        ObjectMapper mapper = new ObjectMapper();
+        try {
+            rootNode = (ObjectNode) mapper.readTree(stream);
+        } catch (IOException e) {
+            log.error("Can't read stream as a JSON ObjectNode: {}", e);
+            return null;
+        }
+        return rootNode;
+    }
+}

protocols/restconf/client/ctl/src/main/java/org/onosproject/protocol/restconf/ctl/RestConfSBControllerImpl.java

@@ -28,6 +28,8 @@ import javax.ws.rs.core.Response;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
 import org.glassfish.jersey.client.ChunkedInput;
 import org.onlab.packet.IpAddress;
@@ -36,6 +38,8 @@ import org.onosproject.protocol.http.ctl.HttpSBControllerImpl;
 import org.onosproject.protocol.rest.RestSBDevice;
 import org.onosproject.protocol.restconf.RestConfNotificationEventListener;
 import org.onosproject.protocol.restconf.RestConfSBController;
+import org.onosproject.yms.ych.YangProtocolEncodingFormat;
+import org.onosproject.yms.ymsm.YmsService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -62,11 +66,19 @@ public class RestConfSBControllerImpl extends HttpSBControllerImpl
                                             restconfNotificationListenerMap = new ConcurrentHashMap<>();
     private Map<DeviceId, GetChunksRunnable> runnableTable = new ConcurrentHashMap<>();
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected YmsService ymsService;
+
     ExecutorService executor = Executors.newCachedThreadPool();
 
     @Activate
     public void activate() {
         log.info("RESTCONF SBI Started");
+        if (ymsService != null) {
+            ymsService
+                    .registerDefaultCodec(new JsonYdtCodec(ymsService),
+                                          YangProtocolEncodingFormat.JSON_ENCODING);
+        }
     }
 
     @Deactivate