[ONOS-3114] Vtn codec registrator added

Change-Id: I500e8a9c5f67603cb287d8deab33cddf2e93cbaa

+/*
+ * Copyright 2014-2015 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.vtnweb.web;
+
+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.onosproject.codec.CodecService;
+import org.onosproject.vtnrsc.FlowClassifier;
+import org.onosproject.vtnrsc.PortChain;
+import org.onosproject.vtnrsc.PortPair;
+import org.onosproject.vtnrsc.PortPairGroup;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Implementation of the JSON codec brokering service for VTN app.
+ */
+@Component(immediate = true)
+public class VtnCodecRegistrator {
+
+    private static Logger log = LoggerFactory.getLogger(VtnCodecRegistrator.class);
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CodecService codecService;
+
+    @Activate
+    public void activate() {
+        codecService.registerCodec(PortPair.class, new PortPairCodec());
+        codecService.registerCodec(PortPairGroup.class, new PortPairGroupCodec());
+        codecService.registerCodec(FlowClassifier.class, new FlowClassifierCodec());
+        codecService.registerCodec(PortChain.class, new PortChainCodec());
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        log.info("Stopped");
+    }
+}

@@ -15,15 +15,10 @@
  */
 package org.onosproject.vtnweb.web;
 
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
 import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.CodecService;
 import org.onosproject.codec.JsonCodec;
-import org.onosproject.vtnrsc.FlowClassifier;
-import org.onosproject.vtnrsc.PortChain;
-import org.onosproject.vtnrsc.PortPair;
-import org.onosproject.vtnrsc.PortPairGroup;
+import org.onosproject.codec.impl.CodecManager;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 
@@ -33,17 +28,16 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 public class SfcCodecContext implements CodecContext {
 
     private final ObjectMapper mapper = new ObjectMapper();
-    private final Map<Class<?>, JsonCodec> codecs = new ConcurrentHashMap<>();
+    private final CodecManager codecManager = new CodecManager();
+    private final VtnCodecRegistrator manager = new VtnCodecRegistrator();
 
     /**
      * Constructs a new mock codec context.
      */
     public SfcCodecContext() {
-        codecs.clear();
-        registerCodec(PortPair.class, new PortPairCodec());
-        registerCodec(PortChain.class, new PortChainCodec());
-        registerCodec(PortPairGroup.class, new PortPairGroupCodec());
-        registerCodec(FlowClassifier.class, new FlowClassifierCodec());
+        codecManager.activate();
+        manager.codecService = codecManager;
+        manager.activate();
     }
 
     @Override
@@ -58,20 +52,17 @@ public class SfcCodecContext implements CodecContext {
         return null;
     }
 
+    @Override
+    public <T> JsonCodec<T> codec(Class<T> entityClass) {
+        return codecManager.getCodec(entityClass);
+    }
+
     /**
-     * Registers the specified JSON codec for the given entity class.
+     * Get the codec manager.
      *
-     * @param entityClass entity class
-     * @param codec       JSON codec
-     * @param <T>         entity type
+     * @return instance of codec manager
      */
-    public <T> void registerCodec(Class<T> entityClass, JsonCodec<T> codec) {
-        codecs.putIfAbsent(entityClass, codec);
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    public <T> JsonCodec<T> codec(Class<T> entityClass) {
-        return codecs.get(entityClass);
+    public CodecService codecManager() {
+        return codecManager;
     }
 }