Remove redundant meter id when create a meter entry in REST API

Change-Id: Iec38ea9a612878a2a6f2766c154c8ed8a8b31ef2
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java b/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
index 7c19202..99030ca 100644
--- a/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
+++ b/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
@@ -55,6 +55,7 @@
 import org.onosproject.net.intent.PointToPointIntent;
 import org.onosproject.net.meter.Band;
 import org.onosproject.net.meter.Meter;
+import org.onosproject.net.meter.MeterRequest;
 import org.onosproject.net.statistic.Load;
 import org.onosproject.net.topology.Topology;
 import org.onosproject.net.topology.TopologyCluster;
@@ -107,6 +108,7 @@
         registerCodec(Driver.class, new DriverCodec());
         registerCodec(GroupBucket.class, new GroupBucketCodec());
         registerCodec(Load.class, new LoadCodec());
+        registerCodec(MeterRequest.class, new MeterRequestCodec());
         registerCodec(Meter.class, new MeterCodec());
         registerCodec(Band.class, new MeterBandCodec());
         registerCodec(TableStatisticsEntry.class, new TableStatisticsEntryCodec());
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/MeterCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/MeterCodec.java
index 468d237..a7879e5 100644
--- a/core/common/src/main/java/org/onosproject/codec/impl/MeterCodec.java
+++ b/core/common/src/main/java/org/onosproject/codec/impl/MeterCodec.java
@@ -15,26 +15,15 @@
  */
 package org.onosproject.codec.impl;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.onosproject.codec.CodecContext;
 import org.onosproject.codec.JsonCodec;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.CoreService;
-import org.onosproject.net.DeviceId;
 import org.onosproject.net.meter.Band;
-import org.onosproject.net.meter.DefaultMeter;
 import org.onosproject.net.meter.Meter;
-import org.onosproject.net.meter.MeterId;
 import org.slf4j.Logger;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.stream.IntStream;
-
 import static com.google.common.base.Preconditions.checkNotNull;
-import static org.onlab.util.Tools.nullIsIllegal;
 import static org.slf4j.LoggerFactory.getLogger;
 
 
@@ -57,7 +46,6 @@
     private static final String UNIT = "unit";
     private static final String BANDS = "bands";
     public static final String REST_APP_ID = "org.onosproject.rest";
-    private static final String MISSING_MEMBER_MESSAGE = " member is required in Meter";
 
     @Override
     public ObjectNode encode(Meter meter, CodecContext context) {
@@ -88,79 +76,4 @@
         result.set(BANDS, bands);
         return result;
     }
-
-    @Override
-    public Meter decode(ObjectNode json, CodecContext context) {
-        if (json == null || !json.isObject()) {
-            return null;
-        }
-
-        final JsonCodec<Band> meterBandCodec = context.codec(Band.class);
-        CoreService coreService = context.getService(CoreService.class);
-
-        // parse meter id
-        int meterIdInt = nullIsIllegal(json.get(ID), ID + MISSING_MEMBER_MESSAGE).asInt();
-        MeterId meterId = MeterId.meterId(meterIdInt);
-
-        // parse device id
-        DeviceId deviceId = DeviceId.deviceId(nullIsIllegal(json.get(DEVICE_ID),
-                DEVICE_ID + MISSING_MEMBER_MESSAGE).asText());
-
-        // application id
-        ApplicationId appId = coreService.registerApplication(REST_APP_ID);
-
-        // parse burst
-        boolean burst = false;
-        JsonNode burstJson = json.get("burst");
-        if (burstJson != null) {
-            burst = burstJson.asBoolean();
-        }
-
-        // parse unit type
-        String unit = nullIsIllegal(json.get(UNIT), UNIT + MISSING_MEMBER_MESSAGE).asText();
-        Meter.Unit meterUnit;
-
-        switch (unit) {
-            case "KB_PER_SEC":
-                meterUnit = Meter.Unit.KB_PER_SEC;
-                break;
-            case "PKTS_PER_SEC":
-                meterUnit = Meter.Unit.PKTS_PER_SEC;
-                break;
-            default:
-                log.warn("The requested unit {} is not defined for meter.", unit);
-                return null;
-        }
-
-        // parse meter bands
-        List<Band> bandList = new ArrayList<>();
-        JsonNode bandsJson = json.get(BANDS);
-        checkNotNull(bandsJson);
-        if (bandsJson != null) {
-            IntStream.range(0, bandsJson.size()).forEach(i -> {
-                ObjectNode bandJson = get(bandsJson, i);
-                bandList.add(meterBandCodec.decode(bandJson, context));
-            });
-        }
-
-        Meter meter;
-        if (burst) {
-            meter = DefaultMeter.builder()
-                    .withId(meterId)
-                    .fromApp(appId)
-                    .forDevice(deviceId)
-                    .withUnit(meterUnit)
-                    .withBands(bandList)
-                    .burst().build();
-        } else {
-            meter = DefaultMeter.builder()
-                    .withId(meterId)
-                    .fromApp(appId)
-                    .forDevice(deviceId)
-                    .withUnit(meterUnit)
-                    .withBands(bandList).build();
-        }
-
-        return meter;
-    }
 }
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/MeterRequestCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/MeterRequestCodec.java
new file mode 100644
index 0000000..1517acb
--- /dev/null
+++ b/core/common/src/main/java/org/onosproject/codec/impl/MeterRequestCodec.java
@@ -0,0 +1,120 @@
+/*
+ * 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.codec.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.meter.Band;
+import org.onosproject.net.meter.DefaultMeterRequest;
+import org.onosproject.net.meter.Meter;
+import org.onosproject.net.meter.MeterRequest;
+import org.slf4j.Logger;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.IntStream;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * MeterRequest JSON codec.
+ */
+public final class MeterRequestCodec extends JsonCodec<MeterRequest> {
+    private final Logger log = getLogger(getClass());
+
+    // JSON field names
+    private static final String DEVICE_ID = "deviceId";
+    private static final String UNIT = "unit";
+    private static final String BANDS = "bands";
+    public static final String REST_APP_ID = "org.onosproject.rest";
+    private static final String MISSING_MEMBER_MESSAGE = " member is required in MeterRequest";
+
+    @Override
+    public MeterRequest decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        final JsonCodec<Band> meterBandCodec = context.codec(Band.class);
+        CoreService coreService = context.getService(CoreService.class);
+
+        // parse device id
+        DeviceId deviceId = DeviceId.deviceId(nullIsIllegal(json.get(DEVICE_ID),
+                DEVICE_ID + MISSING_MEMBER_MESSAGE).asText());
+
+        // application id
+        ApplicationId appId = coreService.registerApplication(REST_APP_ID);
+
+        // parse burst
+        boolean burst = false;
+        JsonNode burstJson = json.get("burst");
+        if (burstJson != null) {
+            burst = burstJson.asBoolean();
+        }
+
+        // parse unit type
+        String unit = nullIsIllegal(json.get(UNIT), UNIT + MISSING_MEMBER_MESSAGE).asText();
+        Meter.Unit meterUnit;
+
+        switch (unit) {
+            case "KB_PER_SEC":
+                meterUnit = Meter.Unit.KB_PER_SEC;
+                break;
+            case "PKTS_PER_SEC":
+                meterUnit = Meter.Unit.PKTS_PER_SEC;
+                break;
+            default:
+                log.warn("The requested unit {} is not defined for meter.", unit);
+                return null;
+        }
+
+        // parse meter bands
+        List<Band> bandList = new ArrayList<>();
+        JsonNode bandsJson = json.get(BANDS);
+        checkNotNull(bandsJson);
+        if (bandsJson != null) {
+            IntStream.range(0, bandsJson.size()).forEach(i -> {
+                ObjectNode bandJson = get(bandsJson, i);
+                bandList.add(meterBandCodec.decode(bandJson, context));
+            });
+        }
+
+        MeterRequest meterRequest;
+        if (burst) {
+            meterRequest = DefaultMeterRequest.builder()
+                    .fromApp(appId)
+                    .forDevice(deviceId)
+                    .withUnit(meterUnit)
+                    .withBands(bandList)
+                    .burst().add();
+        } else {
+            meterRequest = DefaultMeterRequest.builder()
+                    .fromApp(appId)
+                    .forDevice(deviceId)
+                    .withUnit(meterUnit)
+                    .withBands(bandList).add();
+        }
+
+        return meterRequest;
+    }
+}