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.bookkeeper.bookie.storage;
  
  import io.netty.buffer.ByteBuf;
  import java.io.IOException;
  
  /**
   * Scan entries in a entry log file.
   */
  public interface EntryLogScanner {
      /**
       * Tests whether or not the entries belongs to the specified ledger
       * should be processed.
       *
       * @param ledgerId
       *          Ledger ID.
       * @return true if and only the entries of the ledger should be scanned.
       */
      boolean accept(long ledgerId);
  
      /**
       * Process an entry.
       *
       * @param ledgerId
       *          Ledger ID.
       * @param offset
       *          File offset of this entry.
       * @param entry
       *          Entry ByteBuf
       * @throws IOException
       */
      void process(long ledgerId, long offset, ByteBuf entry) throws IOException;
  }
  