content: // 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 com.cloud.vm;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Map.Entry;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  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 org.apache.cloudstack.framework.jobs.impl.JobSerializerHelper;
  
  public class VmWorkSerializer {
      static class StringMapTypeAdapter implements JsonDeserializer<Map> {
  
          @Override
          public Map deserialize(JsonElement src, Type srcType, JsonDeserializationContext context) throws JsonParseException {
  
              Map<String, String> obj = new HashMap<String, String>();
              JsonObject json = src.getAsJsonObject();
  
              for (Entry<String, JsonElement> entry : json.entrySet()) {
                  obj.put(entry.getKey(), entry.getValue().getAsString());
              }
  
              return obj;
          }
      }
  
      protected static Gson s_gson;
      static {
          GsonBuilder gBuilder = new GsonBuilder();
          gBuilder.setVersion(1.3);
          gBuilder.registerTypeAdapter(Map.class, new StringMapTypeAdapter());
          s_gson = gBuilder.create();
      }
  
      public static String serialize(VmWork work) {
          // TODO: there are way many generics, too tedious to get serialization work under GSON
          // use java binary serialization instead
          //
          return JobSerializerHelper.toObjectSerializedString(work);
          // return s_gson.toJson(work);
      }
  
      public static <T extends VmWork> T deserialize(Class<?> clazz, String workInJsonText) {
          // TODO: there are way many generics, too tedious to get serialization work under GSON
          // use java binary serialization instead
          //
          return (T)JobSerializerHelper.fromObjectSerializedString(workInJsonText);
          // return (T)s_gson.fromJson(workInJsonText, clazz);
      }
  }
  