/*
* 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.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 com.google.gson.reflect.TypeToken;
import org.apache.twill.api.ResourceReport;
import org.apache.twill.api.TwillRunResources;
import org.apache.twill.internal.DefaultResourceReport;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.Map;
/**
* Codec for serializing and deserializing a {@link ResourceReport} object using json.
*/
public final class ResourceReportCodec implements JsonSerializer<ResourceReport>,
JsonDeserializer<ResourceReport> {
@Override
public JsonElement serialize(ResourceReport src, Type typeOfSrc, JsonSerializationContext context) {
JsonObject json = new JsonObject();
json.addProperty("appMasterId", src.getApplicationId());
json.add("appMasterResources", context.serialize(
src.getAppMasterResources(), new TypeToken<TwillRunResources>() { }.getType()));
json.add("runnableResources", context.serialize(
src.getResources(), new TypeToken<Map<String, Collection<TwillRunResources>>>() { }.getType()));
return json;
}
@Override
public ResourceReport deserialize(JsonElement json, Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonObj = json.getAsJsonObject();
String appMasterId = jsonObj.get("appMasterId").getAsString();
TwillRunResources masterResources = context.deserialize(
jsonObj.get("appMasterResources"), TwillRunResources.class);
Map<String, Collection<TwillRunResources>> resources = context.deserialize(
jsonObj.get("runnableResources"), new TypeToken<Map<String, Collection<TwillRunResources>>>() { }.getType());
return new DefaultResourceReport(appMasterId, masterResources, resources);
}
}