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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed 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. See accompanying
 * LICENSE file.
 */
package com.gemstone.gemfire.internal.concurrent;

import java.io.Serializable;

/**
 * These methods are the same as on the jdk 1.6
 * java.lang.management.LockInfo
 * @author dsmith
 * @deprecated use LockInfo
 */
public class LI implements Serializable {
  
  private static final long serialVersionUID = -6014738350371493969L;
  
  public final String className;
  public final int identityHashCode;
  private StackTraceElement lockedStackFrame;
  
  public LI(String className, int identityHashCode) {
    this.className = className;
    this.identityHashCode = identityHashCode;
  }
  
  public LI(String className, int identityHashCode,
      StackTraceElement lockedStackFrame) {
    this.lockedStackFrame = lockedStackFrame;
    this.className = className;
    this.identityHashCode = identityHashCode;
  }

  public String getClassName() {
    return className;
  }

  public int getIdentityHashCode() {
    return identityHashCode;
  }
  
  //This comes from monitor info. It will null if the lock is 
  //not a monitor.
  public StackTraceElement getLockedStackFrame() {
    return lockedStackFrame;
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((className == null) ? 0 : className.hashCode());
    result = prime * result + identityHashCode;
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (!(obj instanceof LI))
      return false;
    LI other = (LI) obj;
    if (className == null) {
      if (other.className != null)
        return false;
    } else if (!className.equals(other.className))
      return false;
    if (identityHashCode != other.identityHashCode)
      return false;
    return true;
  }

  @Override
  public String toString() {
    return className + '@' + Integer.toHexString(identityHashCode);
  }
}