Examples of org.apache.hadoop.hdfs.DeprecatedUTF8

org.apache.hadoop.hdfs.DeprecatedUTF8
A simple wrapper around {@link org.apache.hadoop.io.UTF8}. This class should be used only when it is absolutely necessary to use {@link org.apache.hadoop.io.UTF8}. The only difference is that using this class does not require "@SuppressWarning" annotation to avoid javac warning. Instead the deprecation is implied in the class name. This should be treated as package private class to HDFS.

      return (T)this;
    }


    @Override 
    void writeFields(DataOutputStream out) throws IOException {
      DeprecatedUTF8 nameReplicationPair[] = new DeprecatedUTF8[] { 
        new DeprecatedUTF8(path), 
        toLogReplication(replication),
        toLogLong(mtime),
        toLogLong(atime),
        toLogLong(blockSize)};
      new ArrayWritable(DeprecatedUTF8.class, nameReplicationPair).write(out);
      new ArrayWritable(Block.class, blocks).write(out);
      permissions.write(out);


      if (this.opCode == OP_ADD) {
        new DeprecatedUTF8(clientName).write(out);
        new DeprecatedUTF8(clientMachine).write(out);
      }
    }

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    @Override
    public 
    void writeFields(DataOutputStream out) throws IOException {
      FSImageSerialization.writeString(trg, out);
            
      DeprecatedUTF8 info[] = new DeprecatedUTF8[srcs.length];
      int idx = 0;
      for(int i=0; i<srcs.length; i++) {
        info[idx++] = new DeprecatedUTF8(srcs[i]);
      }
      new ArrayWritable(DeprecatedUTF8.class, info).write(out);


      FSImageSerialization.writeLong(timestamp, out);
    }

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  // This should be reverted to package private once the ImageLoader
  // code is moved into this package. This method should not be called
  // by other code.
  @SuppressWarnings("deprecation")
  public static String readString(DataInputStream in) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.readFields(in);
    return ustr.toStringChecked();
  }

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    return s.isEmpty()? null: s;
  }


  @SuppressWarnings("deprecation")
  static void writeString(String str, DataOutputStream out) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.set(str);
    ustr.write(out);
  }

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  }
  
  // Same comments apply for this method as for readString()
  @SuppressWarnings("deprecation")
  public static byte[] readBytes(DataInputStream in) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.readFields(in);
    int len = ustr.getLength();
    byte[] bytes = new byte[len];
    System.arraycopy(ustr.getBytes(), 0, bytes, 0, len);
    return bytes;
  }

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   * @throws IOException
   */
  @SuppressWarnings("deprecation")
  public static byte[][] readPathComponents(DataInputStream in)
      throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    
    ustr.readFields(in);
    return DFSUtil.bytes2byteArray(ustr.getBytes(),
      ustr.getLength(), (byte) Path.SEPARATOR_CHAR);
  }

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    @Override
    public void writeFields(DataOutputStream out) throws IOException {
      FSImageSerialization.writeString(trg, out);
            
      DeprecatedUTF8 info[] = new DeprecatedUTF8[srcs.length];
      int idx = 0;
      for(int i=0; i<srcs.length; i++) {
        info[idx++] = new DeprecatedUTF8(srcs[i]);
      }
      new ArrayWritable(DeprecatedUTF8.class, info).write(out);


      FSImageSerialization.writeLong(timestamp, out);

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  // This should be reverted to package private once the ImageLoader
  // code is moved into this package. This method should not be called
  // by other code.
  @SuppressWarnings("deprecation")
  public static String readString(DataInputStream in) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.readFields(in);
    return ustr.toString();
  }

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    return s.isEmpty()? null: s;
  }


  @SuppressWarnings("deprecation")
  static void writeString(String str, DataOutputStream out) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.set(str);
    ustr.write(out);
  }

View Full Code Here




  // Same comments apply for this method as for readString()
  @SuppressWarnings("deprecation")
  public static byte[] readBytes(DataInputStream in) throws IOException {
    DeprecatedUTF8 ustr = TL_DATA.get().U_STR;
    ustr.readFields(in);
    int len = ustr.getLength();
    byte[] bytes = new byte[len];
    System.arraycopy(ustr.getBytes(), 0, bytes, 0, len);
    return bytes;
  }

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