content: /*
   * 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.distributedlog.api;
  
  import java.io.Closeable;
  import java.io.IOException;
  import org.apache.bookkeeper.common.annotation.InterfaceAudience.LimitedPrivate;
  import org.apache.bookkeeper.common.annotation.InterfaceStability.Evolving;
  import org.apache.distributedlog.io.AsyncCloseable;
  
  /**
   * Provide a metadata accessor to access customized metadata associated with logs.
   *
   * @deprecated this class is here for legacy reason. It is not recommended to use this class for storing customized
   *             metadata.
   */
  @LimitedPrivate
  @Evolving
  public interface MetadataAccessor extends Closeable, AsyncCloseable {
      /**
       * Get the name of the stream managed by this log manager.
       * @return streamName
       */
      String getStreamName();
  
      void createOrUpdateMetadata(byte[] metadata) throws IOException;
  
      void deleteMetadata() throws IOException;
  
      byte[] getMetadata() throws IOException;
  
      /**
       * Close the distributed log metadata, freeing any resources it may hold.
       */
      void close() throws IOException;
  
  }
  