001/*
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019package org.apache.hadoop.hbase.util;
020
021import org.apache.yetus.audience.InterfaceAudience;
022
023 /**
024   * This implementation is not smart and just treats nonce group and nonce as random bits.
025   */
026  // TODO: we could use pure byte arrays, but then we wouldn't be able to use hash map.
027@InterfaceAudience.Private
028public class NonceKey {
029  private long group;
030  private long nonce;
031
032  public NonceKey(long group, long nonce) {
033    this.group = group;
034    this.nonce = nonce;
035  }
036
037  @Override
038  public boolean equals(Object obj) {
039    if (obj == null || !(obj instanceof NonceKey)) {
040      return false;
041    }
042    NonceKey nk = ((NonceKey)obj);
043    return this.nonce == nk.nonce && this.group == nk.group;
044  }
045
046  @Override
047  public int hashCode() {
048    return (int)((group >> 32) ^ group ^ (nonce >> 32) ^ nonce);
049  }
050
051  @Override
052  public String toString() {
053    return "[" + group + ":" + nonce + "]";
054  }
055
056  public long getNonceGroup() {
057    return group;
058  }
059
060  public long getNonce() {
061    return nonce;
062  }
063}