/*
* Copyright © 2014 Cask Data, Inc.
*
* 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 co.cask.cdap.proto.codec;
import co.cask.cdap.api.flow.FlowSpecification;
import co.cask.cdap.api.flow.FlowletConnection;
import co.cask.cdap.api.flow.FlowletDefinition;
import co.cask.cdap.internal.flow.DefaultFlowSpecification;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;
/**
*
*/
public final class FlowSpecificationCodec extends AbstractSpecificationCodec<FlowSpecification> {
@Override
public JsonElement serialize(FlowSpecification src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject jsonObj = new JsonObject();
jsonObj.add("className", new JsonPrimitive(src.getClassName()));
jsonObj.add("name", new JsonPrimitive(src.getName()));
jsonObj.add("description", new JsonPrimitive(src.getDescription()));
jsonObj.add("flowlets", serializeMap(src.getFlowlets(), context, FlowletDefinition.class));
jsonObj.add("connections", serializeList(src.getConnections(), context, FlowletConnection.class));
return jsonObj;
}
@Override
public FlowSpecification deserialize(JsonElement json, Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonObj = json.getAsJsonObject();
String className = jsonObj.get("className").getAsString();
String name = jsonObj.get("name").getAsString();
String description = jsonObj.get("description").getAsString();
Map<String, FlowletDefinition> flowlets = deserializeMap(jsonObj.get("flowlets"), context, FlowletDefinition.class);
List<FlowletConnection> connections = deserializeList(jsonObj.get("connections"), context, FlowletConnection.class);
return new DefaultFlowSpecification(className, name, description, flowlets, connections);
}
}