content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.journal;
  
  import alluxio.exception.status.UnavailableException;
  
  import java.io.Closeable;
  import java.net.URI;
  
  /**
   * A journal for persisting journal entries.
   */
  public interface Journal extends Closeable {
    /**
     * @return the journal location
     */
    URI getLocation();
  
    /**
     * @return a journal context for appending journal entries
     * @throws UnavailableException if a context cannot be created because the journal has been
     *         closed.
     */
    JournalContext createJournalContext() throws UnavailableException;
  }
  