/*
* 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.common.zookeeper.coordination;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import org.apache.twill.discovery.Discoverable;
import java.lang.reflect.Type;
import java.net.InetSocketAddress;
/**
* A Gson codec for {@link Discoverable}.
*
* NOTE: This class may move to different package when needed.
*/
public class DiscoverableCodec implements JsonSerializer<Discoverable>, JsonDeserializer<Discoverable> {
@Override
public JsonElement serialize(Discoverable src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject jsonObj = new JsonObject();
jsonObj.addProperty("service", src.getName());
jsonObj.addProperty("hostname", src.getSocketAddress().getHostName());
jsonObj.addProperty("port", src.getSocketAddress().getPort());
return jsonObj;
}
@Override
public Discoverable deserialize(JsonElement json, Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonObj = json.getAsJsonObject();
final String service = jsonObj.get("service").getAsString();
String hostname = jsonObj.get("hostname").getAsString();
int port = jsonObj.get("port").getAsInt();
final InetSocketAddress address = new InetSocketAddress(hostname, port);
return new Discoverable() {
@Override
public String getName() {
return service;
}
@Override
public InetSocketAddress getSocketAddress() {
return address;
}
};
}
}