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 storm.trident.state;
  
  import java.io.UnsupportedEncodingException;
  import java.util.ArrayList;
  import java.util.List;
  import org.json.simple.JSONValue;
  
  public class JSONOpaqueSerializer implements Serializer<OpaqueValue> {
  
      @Override
      public byte[] serialize(OpaqueValue obj) {
          List toSer = new ArrayList(3);
          toSer.add(obj.currTxid);
          toSer.add(obj.curr);
          toSer.add(obj.prev);
          try {
              return JSONValue.toJSONString(toSer).getBytes("UTF-8");
          } catch (UnsupportedEncodingException e) {
              throw new RuntimeException(e);
          }
      }
  
      @Override
      public OpaqueValue deserialize(byte[] b) {
          try {
              String s = new String(b, "UTF-8");
              List deser = (List) JSONValue.parse(s);
              return new OpaqueValue((Long) deser.get(0), deser.get(1), deser.get(2));
          } catch (UnsupportedEncodingException e) {
              throw new RuntimeException(e);
          }
      }
  
  }
  