| /* |
| * 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); |
| } |
| } |