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 org.apache.camel.component.file.consumer.FileResumeAdapter;
  import org.apache.camel.resume.Cacheable;
  import org.apache.camel.resume.Offset;
  import org.apache.camel.resume.OffsetKey;
  import org.apache.camel.resume.cache.ResumeCache;
  
  /**
   * Base shared class for the file resume adapters
   */
  abstract class AbstractFileResumeAdapter implements FileResumeAdapter, Cacheable {
      protected ResumeCache<File> cache;
  
      protected AbstractFileResumeAdapter() {
      }
  
      @SuppressWarnings("unchecked")
      @Override
      public final void setCache(ResumeCache<?> cache) {
          this.cache = (ResumeCache<File>) cache;
      }
  
      @Override
      public final ResumeCache<?> getCache() {
          return cache;
      }
  
      @Override
      public final boolean add(OffsetKey<?> key, Offset<?> offset) {
          return add(key.getValue(), offset.getValue());
      }
  
      protected abstract boolean add(Object key, Object offset);
  }
  