content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.examples;
  
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.fs.FSDataInputStream;
  import org.apache.hadoop.fs.FSDataOutputStream;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.fs.Path;
  
  /**
   * Example program to use Alluxio Hadoop Compatible API to read and write files.
   *
   */
  public class AlluxioHDFS
  {
    /**
     * Entry point for the {@link AlluxioHDFS} program.
     *
     * @param args command-line arguments
     */
    public static void main(String[] args) throws
        java.io.IOException
    {
      final int bufSize = alluxio.Constants.KB * 4;
      System.out.println("Starting write");
  
      Configuration conf = new Configuration();
      conf.set("fs.alluxio.impl", "alluxio.hadoop.FileSystem");
      conf.set("fs.AbstractFileSystem.alluxio.impl", "alluxio.hadoop.AlluxioFileSystem");
      conf.set("fs.defaultFS", "alluxio://localhost:19998");
  
      FileSystem fs = FileSystem.get(conf);
  
      String filename = "/AlluxioHDFS.txt";
  
      FSDataOutputStream out = fs.create(new Path(filename));
      byte[] buffout = new byte[bufSize];
      for (int i = 0; i < bufSize; i++) {
        buffout[i] = (byte) ('a' + i % 26);
      }
      out.write(buffout);
      out.close();
  
      FSDataInputStream in = fs.open(new Path(filename));
      byte[] buffin = new byte[bufSize];
      in.read(buffin);
      in.close();
      System.out.println("Got: " + (new String(buffin)));
      System.out.println("End write");
    }
  }
  