content: /*
   * Copyright (c) 2013 - 2014, Allen A. George <allen dot george at gmail dot com>
   *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in the
   *       documentation and/or other materials provided with the distribution.
   *     * Neither the name of libraft nor the
   *       names of its contributors may be used to endorse or promote products
   *       derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package io.libraft;
  
  /**
   * Thrown when a {@link Raft} instance cannot guarantee that a
   * {@code Command} was durably replicated to the Raft cluster.
   * <p/>
   * There are <strong>false negatives</strong> when this exception is
   * thrown. The {@code Command} may have been replicated durably, but before the
   * leader is notified. It is the client's responsibility to handle this.
   *
   * @see io.libraft.Command
   */
  @SuppressWarnings("unused")
  public final class ReplicationException extends RaftException {
  
      private static final long serialVersionUID = 2055604328517674654L;
  
      private Command command;
  
      private ReplicationException() {}
  
      private ReplicationException(String message) {
          super(message);
      }
  
      private ReplicationException(Throwable cause) {
          super(cause);
      }
  
      private ReplicationException(String message, Throwable cause) {
          super(message, cause);
      }
  
      /**
       * Constructor
       *
       * @param command {@code Command} that could not be replicated to the Raft cluster
       *                                (to be returned to the user)
       */
      public ReplicationException(Command command) {
          super(String.format("command:%s overwritten", command));
          this.command = command;
      }
  
      /**
       * @return actual {@code Command} that could not be replicated to the Raft cluster
       */
      public Command getCommand() {
          return command;
      }
  }
  