/*
 * 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.geode.internal.cache.locks;

import org.apache.geode.DataSerializable;
import org.apache.geode.DataSerializer;
// import org.apache.geode.cache.Region;
import java.io.*;

import org.apache.commons.lang.StringUtils;

/**
 * Represents one transaction lock.
 *
 */
public class TXLockToken implements DataSerializable {
  private static final long serialVersionUID = 8172108573123093776L;

  private String regionFullPath;

  private Object name;

  public TXLockToken(String regionFullPath, Object name) {
    this.regionFullPath = regionFullPath;
    this.name = name;
  }

  @Override
  public int hashCode() {
    int result = 17;
    final int mult = 37;

    result = mult * result + (this.regionFullPath == null ? 0 : this.regionFullPath.hashCode());
    result = mult * result + (this.name == null ? 0 : this.name.hashCode());

    return result;
  }

  @Override
  public boolean equals(Object other) {
    if (other == this)
      return true;
    if (other == null)
      return false;
    if (!(other instanceof TXLockToken))
      return false;
    final TXLockToken that = (TXLockToken) other;

    if (!StringUtils.equals(this.regionFullPath, that.regionFullPath))
      return false;
    if (this.name != that.name && !(this.name != null && this.name.equals(that.name)))
      return false;

    return true;
  }

  @Override
  public String toString() {
    return "[TXLockToken: " + this.regionFullPath + "//" + this.name + "]";
  }

  // -------------------------------------------------------------------------
  // DataSerializable support
  // -------------------------------------------------------------------------

  public TXLockToken() {}

  public void fromData(DataInput in) throws IOException, ClassNotFoundException {
    this.regionFullPath = DataSerializer.readString(in);
    this.name = DataSerializer.readObject(in);
  }

  public void toData(DataOutput out) throws IOException {
    DataSerializer.writeString(this.regionFullPath, out);
    DataSerializer.writeObject(this.name, out);
  }

}