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 backtype.storm.serialization;
  
  import backtype.storm.Config;
  import com.esotericsoftware.kryo.Kryo;
  import com.esotericsoftware.kryo.Serializer;
  import org.objenesis.strategy.StdInstantiatorStrategy;
  
  import java.util.Map;
  
  public class DefaultKryoFactory implements IKryoFactory {
  
      public static class KryoSerializableDefault extends Kryo {
          boolean _override = false;
  
          public void overrideDefault(boolean value) {
              _override = value;
          }
  
          @Override
          public Serializer getDefaultSerializer(Class type) {
              if (_override) {
                  return new SerializableSerializer();
              } else {
                  return super.getDefaultSerializer(type);
              }
          }
      }
  
      @Override
      public Kryo getKryo(Map conf) {
          KryoSerializableDefault k = new KryoSerializableDefault();
          k.setRegistrationRequired(Boolean.valueOf(conf.get(Config.TOPOLOGY_KRYO_REGISTER_REQUIRED).toString()));
          k.setInstantiatorStrategy(new Kryo.DefaultInstantiatorStrategy(new StdInstantiatorStrategy()));
          k.setReferences(false);
          return k;
      }
  
      @Override
      public void preRegister(Kryo k, Map conf) {
      }
  
      public void postRegister(Kryo k, Map conf) {
          ((KryoSerializableDefault) k).overrideDefault(
                  Boolean.valueOf(conf.get(Config.TOPOLOGY_FALL_BACK_ON_JAVA_SERIALIZATION).toString()));
      }
  
      @Override
      public void postDecorate(Kryo k, Map conf) {
      }
  }
  