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.cassandra.service;
  
  import org.apache.cassandra.io.FSError;
  import org.apache.cassandra.io.sstable.CorruptSSTableException;
  
  public interface DiskErrorsHandler extends AutoCloseable
  {
      void init();
  
      void handleCorruptSSTable(CorruptSSTableException e);
  
      void handleFSError(FSError e);
  
      boolean handleCommitError(String message, Throwable t);
  
      void handleStartupFSError(Throwable t);
  
      void inspectDiskError(Throwable t);
  
      void inspectCommitLogError(Throwable t);
  
      class NoOpDiskErrorHandler implements DiskErrorsHandler
      {
          public static final DiskErrorsHandler NO_OP = new NoOpDiskErrorHandler();
  
          private NoOpDiskErrorHandler() {}
  
          @Override
          public void inspectCommitLogError(Throwable t) {}
  
          @Override
          public boolean handleCommitError(String message, Throwable t)
          {
              // tracks what DefaultDiskErrorsHandler does when commit_failure_policy = ignore
              return true;
          }
  
          @Override
          public void handleCorruptSSTable(CorruptSSTableException e) {}
  
          @Override
          public void handleFSError(FSError e) {}
  
          @Override
          public void handleStartupFSError(Throwable t) {}
  
          @Override
          public void inspectDiskError(Throwable t) {}
  
          @Override
          public void init() {}
  
          @Override
          public void close() throws Exception {}
      }
  }
  