/*
* 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.LocalFile;
import org.apache.twill.api.ResourceSpecification;
import org.apache.twill.api.RuntimeSpecification;
import org.apache.twill.api.TwillRunnableSpecification;
import org.apache.twill.internal.DefaultRuntimeSpecification;
import java.lang.reflect.Type;
import java.util.Collection;
/**
* Gson codec for {@link RuntimeSpecification}.
*/
final class RuntimeSpecificationCodec implements JsonSerializer<RuntimeSpecification>,
JsonDeserializer<RuntimeSpecification> {
@Override
public JsonElement serialize(RuntimeSpecification src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject json = new JsonObject();
json.addProperty("name", src.getName());
json.add("runnable", context.serialize(src.getRunnableSpecification(), TwillRunnableSpecification.class));
json.add("resources", context.serialize(src.getResourceSpecification(), ResourceSpecification.class));
json.add("files", context.serialize(src.getLocalFiles(), new TypeToken<Collection<LocalFile>>() { }.getType()));
return json;
}
@Override
public RuntimeSpecification deserialize(JsonElement json, Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonObj = json.getAsJsonObject();
String name = jsonObj.get("name").getAsString();
TwillRunnableSpecification runnable = context.deserialize(jsonObj.get("runnable"),
TwillRunnableSpecification.class);
ResourceSpecification resources = context.deserialize(jsonObj.get("resources"),
ResourceSpecification.class);
Collection<LocalFile> files = context.deserialize(jsonObj.get("files"),
new TypeToken<Collection<LocalFile>>() { }.getType());
return new DefaultRuntimeSpecification(name, runnable, resources, files);
}
}