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.journal;
  
  import java.util.List;
  
  import accord.utils.Invariants;
  import org.apache.cassandra.io.util.File;
  
  import static accord.utils.SortedArrays.SortedArrayList.ofSorted;
  
  enum Component
  {
      DATA           ("data"),
      INDEX          ("indx"),
      METADATA       ("meta");
      //OFFSET_MAP     (".offs"),
      //INVLALIDATIONS (".invl");
  
      public static final List<Component> VALUES = ofSorted(values());
      final String extension;
  
      Component(String extension)
      {
          this.extension = extension;
      }
  
      /**
       * @return if this component for the provided descrtiptor exists on disk
       */
      boolean existsFor(Descriptor descriptor)
      {
          return descriptor.fileFor(this).exists();
      }
  
      void markCorrupted(Descriptor descriptor)
      {
          File file = descriptor.fileFor(this);
          Invariants.require(file.exists());
          file.move(file.withSuffix(".corrupted"));
      }
  }
  