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 org.apache.ambari.server.controller.metrics.timeline.cache;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  import java.nio.ByteBuffer;
  
  import org.ehcache.spi.serialization.Serializer;
  import org.ehcache.spi.serialization.SerializerException;
  
  public class TimelineAppMetricCacheKeySerializer implements Serializer<TimelineAppMetricCacheKey> {
    private final ClassLoader classLoader;
    public TimelineAppMetricCacheKeySerializer(ClassLoader classLoader) {
      this.classLoader = classLoader;
    }
    @Override
    public ByteBuffer serialize(TimelineAppMetricCacheKey key) throws SerializerException {
      try {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
        objectOutputStream.writeObject(key);
        objectOutputStream.close();
        return ByteBuffer.wrap(byteArrayOutputStream.toByteArray());
      } catch (Exception e) {
        throw new SerializerException(e);
      }
    }
  
    @Override
    public TimelineAppMetricCacheKey read(ByteBuffer binary) throws ClassNotFoundException, SerializerException {
      try {
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(binary.array());
        ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
        return (TimelineAppMetricCacheKey) objectInputStream.readObject();
      } catch (IOException | ClassNotFoundException e) {
        throw new SerializerException("Error during deserialization", e);
      }
    }
  
    @Override
    public boolean equals(TimelineAppMetricCacheKey key, ByteBuffer binary) throws ClassNotFoundException, SerializerException {
      try {
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(binary.array());
        ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
        TimelineAppMetricCacheKey deserializedKey = (TimelineAppMetricCacheKey) objectInputStream.readObject();
  
        // Now compare key and deserializedKey
        if (key == deserializedKey) return true;
        if (deserializedKey == null || (key.getClass() != deserializedKey.getClass())) return false;
  
        if (!key.getMetricNames().equals(deserializedKey.getMetricNames())) return false;
        if (!key.getAppId().equals(deserializedKey.getAppId())) return false;
        return !(key.getHostNames() != null ? !key.getHostNames().equals(deserializedKey.getHostNames()) : deserializedKey.getHostNames() != null);
  
      } catch (IOException e) {
        throw new SerializerException("Error during deserialization", e);
      }
    }
  }
  