/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.twill.internal.json;
import com.google.common.reflect.TypeToken;
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.api.TwillRunnableSpecification;
import org.apache.twill.internal.DefaultTwillRunnableSpecification;
import java.lang.reflect.Type;
import java.util.Map;
/**
* Gson codec for {@link TwillRunnableSpecification}.
*/
final class TwillRunnableSpecificationCodec implements JsonSerializer<TwillRunnableSpecification>,
JsonDeserializer<TwillRunnableSpecification> {
@Override
public JsonElement serialize(TwillRunnableSpecification src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject json = new JsonObject();
json.addProperty("classname", src.getClassName());
json.addProperty("name", src.getName());
json.add("arguments", context.serialize(src.getConfigs(), new TypeToken<Map<String, String>>() { }.getType()));
return json;
}
@Override
public TwillRunnableSpecification 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();
Map<String, String> arguments = context.deserialize(jsonObj.get("arguments"),
new TypeToken<Map<String, String>>() { }.getType());
return new DefaultTwillRunnableSpecification(className, name, arguments);
}
}