[ONOS-6170] Implement codec for MappingValue with unit test
Change-Id: Id343fb26245756283b23e315d85499fc08853929
diff --git a/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/codec/MappingValueCodec.java b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/codec/MappingValueCodec.java
new file mode 100644
index 0000000..a354a8a
--- /dev/null
+++ b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/codec/MappingValueCodec.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2017-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.mapping.web.codec;
+
+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.mapping.DefaultMappingValue;
+import org.onosproject.mapping.MappingTreatment;
+import org.onosproject.mapping.MappingValue;
+import org.onosproject.mapping.actions.MappingAction;
+
+import java.util.stream.IntStream;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Mapping value codec.
+ */
+public final class MappingValueCodec extends JsonCodec<MappingValue> {
+
+ protected static final String ACTION = "action";
+ protected static final String TREATMENTS = "treatments";
+
+ @Override
+ public ObjectNode encode(MappingValue value, CodecContext context) {
+ checkNotNull(value, "Mapping value cannot be null");
+
+ final ObjectNode result = context.mapper().createObjectNode();
+ final ArrayNode jsonTreatments = result.putArray(TREATMENTS);
+
+ final JsonCodec<MappingTreatment> treatmentCodec =
+ context.codec(MappingTreatment.class);
+
+ final JsonCodec<MappingAction> actionCodec =
+ context.codec(MappingAction.class);
+
+ for (final MappingTreatment treatment : value.treatments()) {
+ jsonTreatments.add(treatmentCodec.encode(treatment, context));
+ }
+
+ result.set(ACTION, actionCodec.encode(value.action(), context));
+
+ return result;
+ }
+
+ @Override
+ public MappingValue decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ final JsonCodec<MappingTreatment> treatmentCodec =
+ context.codec(MappingTreatment.class);
+
+ JsonNode treatmentJson = json.get(TREATMENTS);
+ MappingValue.Builder builder = DefaultMappingValue.builder();
+
+ if (treatmentJson != null) {
+ IntStream.range(0, treatmentJson.size())
+ .forEach(i -> builder.add(
+ treatmentCodec.decode(get(treatmentJson, i),
+ context)));
+ }
+
+ ObjectNode actionJson = get(json, ACTION);
+ if (actionJson != null) {
+ final JsonCodec<MappingAction> actionCodec =
+ context.codec(MappingAction.class);
+ builder.withAction(actionCodec.decode(actionJson, context));
+ }
+
+ return builder.build();
+ }
+}