package alluxio.underfs.hdfs;

import alluxio.underfs.SeekableUnderFileInputStream;

import org.apache.hadoop.fs.FSDataInputStream;

import java.io.IOException;

/**
 * The input stream of HDFS as under filesystem. This input stream supports seeking and can be
 * cached for reuse.
 */
public class HdfsUnderFileInputStream extends SeekableUnderFileInputStream {

  HdfsUnderFileInputStream(FSDataInputStream in) {
    super(in);
  }

  @Override
  public void seek(long position) throws IOException {
    ((FSDataInputStream) mInputStream).seek(position);
  }

  @Override
  public long getPos() {
    try {
      return ((FSDataInputStream) mInputStream).getPos();
    } catch (IOException e) {
      throw new RuntimeException("Failed to get position " + e);
    }
  }
}

@@ -1,8 +1,522 @@
+/*%0A * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0%0A * (the %22License%22). You may not use this work except in compliance with the License, which is%0A * available at www.apache.org/licenses/LICENSE-2.0%0A *%0A * This software is distributed on an %22AS IS%22 basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,%0A * either express or implied, as more fully set forth in the License.%0A *%0A * See the NOTICE file distributed with this work for information regarding copyright ownership.%0A */%0A%0A
 package 

add missing header