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/**
 * 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.datatorrent.lib.join;

import javax.annotation.Nonnull;

import org.apache.hadoop.classification.InterfaceStability;

/**
 * Time event Implementation.
 *
 * @since 3.4.0
 */
@InterfaceStability.Unstable
public class TimeEventImpl implements TimeEvent, Comparable
{
  protected Object key;
  protected long time;
  protected Object tuple;
  protected boolean match;

  @SuppressWarnings("unused")
  public TimeEventImpl()
  {
  }

  public TimeEventImpl(Object key, long time, Object tuple)
  {
    this.key = key;
    this.time = time;
    this.tuple = tuple;
    this.match = false;
  }

  @Override
  public long getTime()
  {
    return time;
  }

  @Override
  public boolean equals(Object o)
  {
    if (this == o) {
      return true;
    }
    if (!(o instanceof TimeEventImpl)) {
      return false;
    }

    TimeEventImpl that = (TimeEventImpl)o;

    return time == that.time && !(key != null ? !key.equals(that.key) : that.key != null) &&
        !(tuple != null ? !tuple.equals(that.tuple) : that.tuple != null);

  }

  @Override
  public int hashCode()
  {
    int result = key != null ? key.hashCode() : 0;
    result = 31 * result + (int)(time ^ (time >>> 32));
    return result;
  }

  @Override
  public Object getEventKey()
  {
    return key;
  }

  @Override
  public int compareTo(@Nonnull TimeEventImpl dummyEvent)
  {
    if (key.equals(dummyEvent.key)) {
      return 0;
    }
    return -1;
  }

  public Object getValue()
  {
    return tuple;
  }

  @Override
  public String toString()
  {
    return "TimeEvent{" +
      "key=" + key +
      ", time=" + time +
      ", tuple=" + tuple +
      ", match=" + match +
      '}';
  }

  public boolean isMatch()
  {
    return match;
  }

  public void setMatch(boolean match)
  {
    this.match = match;
  }
}