REST/CLI Implementations and Fix for remote url data

Change-Id: I0daeebdd40864179c6b923bed3da0c38f259829e
diff --git a/app/src/main/java/org/opencord/sadis/impl/SadisManager.java b/app/src/main/java/org/opencord/sadis/impl/SadisManager.java
index 1297235..f8e4de8 100644
--- a/app/src/main/java/org/opencord/sadis/impl/SadisManager.java
+++ b/app/src/main/java/org/opencord/sadis/impl/SadisManager.java
@@ -31,6 +31,8 @@
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.codec.CodecService;
+import org.opencord.sadis.SubscriberAndDeviceInformation;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -57,6 +59,9 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected NetworkConfigRegistry cfgService;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected CodecService codecService;
+
     @SuppressWarnings("rawtypes")
     private final Set<ConfigFactory> factories = ImmutableSet
             .of(new ConfigFactory<ApplicationId, SadisConfig>(APP_SUBJECT_FACTORY, SadisConfig.class, "sadis") {
@@ -73,6 +78,7 @@
     protected void activate() {
 
         this.appId = this.coreService.registerApplication(SADIS_APP);
+        codecService.registerCodec(SubscriberAndDeviceInformation.class, new SubscriberAndDeviceInformationCodec());
         this.cfgService.addListener(this.cfgListener);
         this.factories.forEach(this.cfgService::registerConfigFactory);
         this.updateConfig();
diff --git a/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationAdapter.java b/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationAdapter.java
index 8842490..fbd77aa 100644
--- a/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationAdapter.java
+++ b/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationAdapter.java
@@ -26,9 +26,12 @@
 import org.opencord.sadis.SubscriberAndDeviceInformationService;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
 import com.google.common.collect.Maps;
+import org.onlab.packet.VlanId;
+import org.onlab.packet.Ip4Address;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -42,6 +45,7 @@
     private static final long DEFAULT_TTL = 0;
 
     private String url;
+    private ObjectMapper mapper;
     private Cache<String, SubscriberAndDeviceInformation> cache;
     private int maxiumCacheSize = DEFAULT_MAXIMUM_CACHE_SIZE;
     private long cacheEntryTtl = DEFAULT_TTL;
@@ -51,6 +55,14 @@
     public SubscriberAndDeviceInformationAdapter() {
         cache = CacheBuilder.newBuilder().maximumSize(maxiumCacheSize)
                 .expireAfterAccess(cacheEntryTtl, TimeUnit.SECONDS).build();
+        mapper = new ObjectMapper();
+        SimpleModule module = new SimpleModule();
+        SadisConfig config = new SadisConfig();
+        SadisConfig.VlanIdDeserializer vlanID = config.new VlanIdDeserializer();
+        SadisConfig.Ip4AddressDeserializer ip4Address = config.new Ip4AddressDeserializer();
+        module.addDeserializer(VlanId.class, vlanID);
+        module.addDeserializer(Ip4Address.class, ip4Address);
+        mapper.registerModule(module);
     }
 
     /**
@@ -114,6 +126,37 @@
      * (non-Javadoc)
      *
      * @see
+     * org.opencord.sadis.SubscriberAndDeviceInformationService#invalidateId()
+     */
+    @Override
+    public void invalidateId(String id) {
+        cache.invalidate(id);
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see
+     * org.opencord.sadis.SubscriberAndDeviceInformationService#getfromCache(java.lang.
+     * String)
+     */
+     @Override
+     public SubscriberAndDeviceInformation getfromCache(String id) {
+         Cache<String, SubscriberAndDeviceInformation> local;
+         synchronized (this) {
+           local = cache;
+         }
+         SubscriberAndDeviceInformation info = local.getIfPresent(id);
+         if (info != null) {
+            return info;
+         }
+         return null;
+     }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see
      * org.opencord.sadis.SubscriberAndDeviceInformationService#get(java.lang.
      * String)
      */
@@ -134,7 +177,7 @@
          * from there, else check for it in the locally configured data
          */
         if (this.url == null) {
-            info = localCfgData.get(id);
+            info = (localCfgData == null) ? null : localCfgData.get(id);
 
             if (info != null) {
                 local.put(id, info);
@@ -150,13 +193,12 @@
             buf.append(id);
 
             try (InputStream io = new URL(buf.toString()).openStream()) {
-                ObjectMapper mapper = new ObjectMapper();
                 info = mapper.readValue(io, SubscriberAndDeviceInformation.class);
                 local.put(id, info);
                 return info;
             } catch (IOException e) {
                 // TODO Auto-generated catch block
-                e.printStackTrace();
+                log.warn("Exception while reading remote data " + e.getMessage());
             }
         }
         log.error("Data not found for id {}", id);
diff --git a/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationCodec.java b/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationCodec.java
new file mode 100644
index 0000000..18b63ac
--- /dev/null
+++ b/app/src/main/java/org/opencord/sadis/impl/SubscriberAndDeviceInformationCodec.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * 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.opencord.sadis.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.opencord.sadis.SubscriberAndDeviceInformation;
+
+public  class SubscriberAndDeviceInformationCodec extends JsonCodec<SubscriberAndDeviceInformation> {
+      @Override
+      public ObjectNode encode(SubscriberAndDeviceInformation entry, CodecContext context) {
+          final ObjectNode result = context.mapper().createObjectNode()
+                                    .put("id", entry.id())
+                                    .put("cTag", (entry.cTag() == null) ? "" : entry.cTag().toString())
+                                    .put("sTag", (entry.sTag() == null) ? "" : entry.sTag().toString())
+                                    .put("nasPortId", entry.nasPortId())
+                                    .put("port", entry.port())
+                                    .put("slot", entry.slot())
+                                    .put("hardwareIdentifier", (entry.hardwareIdentifier() == null) ? "" :
+                                          entry.hardwareIdentifier().toString())
+                                    .put("ipAddress", (entry.ipAddress() == null) ? "" : entry.ipAddress().toString())
+                                    .put("nasId", entry.nasId());
+          return result;
+      }
+}