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   /*
    *  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.mina.core.file;
  
  import java.io.File;
  import java.io.IOException;
  import java.nio.channels.FileChannel;
  
  /**
   * TODO Add documentation
   * 
   * 
   * @author The Apache MINA Project (dev@mina.apache.org)
   * @version $Rev$, $Date$
   */
  public class FilenameFileRegion extends DefaultFileRegion {
  
      private final File file;
  
      public FilenameFileRegion(File file, FileChannel channel) throws IOException {
          this(file, channel, 0, file.length());
      }
  
      public FilenameFileRegion(File file, FileChannel channel, long position, long remainingBytes) {
          super(channel, position, remainingBytes);
  
          if (file == null) {
              throw new IllegalArgumentException("file can not be null");
          }
          
          this.file = file;
      }
  
      public String getFilename() {
          return file.getAbsolutePath();
      }
  }