/*
 * 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;

/**
 * This is the abstract superclass of exceptions that are thrown to indicate incorrect usage of
 * GemFire.
 *
 * Since these exceptions are unchecked, this class really <em>ought</em> to be called
 * <code>GemFireRuntimeException</code>; however, the current name is retained for compatibility's
 * sake.
 * 
 * @see org.apache.geode.GemFireCheckedException
 * @see org.apache.geode.cache.CacheRuntimeException
 */
// Implementation note: This class is abstract so that we are forced
// to have more specific exception types. We want to avoid using
// GemFireException to describe an arbitrary error condition (think
// GsError).
public abstract class GemFireException extends RuntimeException {
  public static final long serialVersionUID = -6972360779789402295L;

  /** The cause of this <code>GemFireException</code> */
  // private Throwable cause;

  ////////////////////// Constructors //////////////////////

  /**
   * Creates a new <code>GemFireException</code> with no detailed message.
   */
  public GemFireException() {
    super();
  }

  /**
   * Creates a new <code>GemFireException</code> with the given detail message.
   */
  public GemFireException(String message) {
    super(message);
  }

  /**
   * Creates a new <code>GemFireException</code> with the given detail message and cause.
   */
  public GemFireException(String message, Throwable cause) {
    super(message, cause);
    // this.cause = cause;
  }

  /**
   * Creates a new <code>GemFireException</code> with the given cause and no detail message
   */
  public GemFireException(Throwable cause) {
    super(cause);
    // this.cause = cause;
  }

  //////////////////// Instance Methods ////////////////////

  /**
   * Returns the cause of this <code>GemFireException</code> or <code>null</code> if the cause is
   * nonexistent or unknown.
   */
  // public Throwable getCause() {
  // return this.cause;
  // }

  /**
   * Returns the root cause of this <code>GemFireException</code> or <code>null</code> if the cause
   * is nonexistent or unknown.
   */
  public Throwable getRootCause() {
    if (this.getCause() == null) {
      return null;
    }
    Throwable root = this.getCause();
    while (root.getCause() != null) {
      root = root.getCause();
    }
    return root;
  }

  // public void printStackTrace() {
  // super.printStackTrace();
  // if (this.cause != null) {
  // System.err.println("Caused by:");
  // this.cause.printStackTrace();
  // }
  // }

  // public void printStackTrace(java.io.PrintWriter pw) {
  // super.printStackTrace(pw);
  //
  // if (this.cause != null) {
  // pw.println("Caused by:");
  // this.cause.printStackTrace(pw);
  // }
  // }
  //
  // public String getMessage() {
  // if (this.cause != null) {
  // String ourMsg = super.getMessage();
  // if (ourMsg == null || ourMsg.length() == 0) {
  // //ourMsg = super.toString(); //causes inifinite recursion
  // ourMsg = "";
  // }
  // StringBuffer sb = new StringBuffer(ourMsg);
  // sb.append(" Caused by: ");
  // String causeMsg = this.cause.getMessage();
  // if (causeMsg == null || causeMsg.length() == 0) {
  // causeMsg = this.cause.toString();
  // }
  // sb.append(causeMsg);
  // return sb.toString();
  // } else {
  // return super.getMessage();
  // }
  // }

  /**
   * Represent the receiver as well as the cause
   */
  // public String toString() {
  // String result = super.toString();
  // if (cause != null) {
  // result = result + ", caused by " + cause.toString();
  // }
  // return result;
  // }

}