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.camel.component.file.consumer.adapters;
  
  import java.io.File;
  import java.nio.ByteBuffer;
  
  import org.apache.camel.component.file.GenericFile;
  import org.apache.camel.component.file.consumer.DirectoryEntriesResumeAdapter;
  import org.apache.camel.component.file.consumer.FileOffsetResumeAdapter;
  import org.apache.camel.component.file.consumer.FileResumeAdapter;
  import org.apache.camel.resume.Cacheable;
  import org.apache.camel.resume.Deserializable;
  import org.apache.camel.resume.Offset;
  import org.apache.camel.resume.OffsetKey;
  import org.apache.camel.resume.cache.ResumeCache;
  import org.apache.camel.spi.annotations.JdkService;
  import org.apache.camel.support.resume.OffsetKeys;
  import org.apache.camel.support.resume.Offsets;
  
  @JdkService("file-adapter-factory")
  public class FileResumeAdapterDelegate
          implements FileResumeAdapter, Cacheable, Deserializable, FileOffsetResumeAdapter, DirectoryEntriesResumeAdapter {
      private final DefaultDirectoryEntriesResumeAdapter directoryEntriesResumeAdapter
              = new DefaultDirectoryEntriesResumeAdapter();
      private final DefaultFileOffsetResumeAdapter fileOffsetResumeAdapter = new DefaultFileOffsetResumeAdapter();
  
      @Override
      public void setResumePayload(GenericFile<File> genericFile) {
          fileOffsetResumeAdapter.setResumePayload(genericFile);
      }
  
      @Override
      public boolean add(OffsetKey<?> key, Offset<?> offset) {
          Object offsetObj = offset.getValue();
  
          if (offsetObj instanceof Long) {
              return fileOffsetResumeAdapter.add(key, offset);
          } else {
              return directoryEntriesResumeAdapter.add(key, offset);
          }
      }
  
      @Override
      public void setCache(ResumeCache<?> cache) {
          fileOffsetResumeAdapter.setCache(cache);
          directoryEntriesResumeAdapter.setCache(cache);
      }
  
      @Override
      public ResumeCache<?> getCache() {
          return fileOffsetResumeAdapter.getCache();
      }
  
      @Override
      public boolean deserialize(ByteBuffer keyBuffer, ByteBuffer valueBuffer) {
          Object keyObj = deserializeKey(keyBuffer);
          Object valueObj = deserializeValue(valueBuffer);
  
          if (valueObj instanceof File file) {
              directoryEntriesResumeAdapter.deserializeFileEntry((File) keyObj, file);
          }
  
          if (valueObj instanceof Long aLong) {
              fileOffsetResumeAdapter.deserializeFileOffset((File) keyObj, aLong);
          }
  
          return add(OffsetKeys.of(keyObj), Offsets.of(valueObj));
      }
  
      @Override
      public void resume() {
          fileOffsetResumeAdapter.resume();
          directoryEntriesResumeAdapter.resume();
      }
  
      @Override
      public boolean resume(File file) {
          return directoryEntriesResumeAdapter.resume(file);
      }
  }
  