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.

  /** 
   * Add rename record to edit log
   * TODO: use String parameters until just before writing to disk
   */
  void logRename(String src, String dst, long timestamp) {
    DeprecatedUTF8 info[] = new DeprecatedUTF8[] { 
      new DeprecatedUTF8(src),
      new DeprecatedUTF8(dst),
      FSEditLog.toLogLong(timestamp)};
    logEdit(Ops.OP_RENAME_OLD, new ArrayWritable(DeprecatedUTF8.class, info));
  }

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  /** 
   * Add rename record to edit log
   */
  void logRename(String src, String dst, long timestamp, Options.Rename... options) {
    DeprecatedUTF8 info[] = new DeprecatedUTF8[] { 
      new DeprecatedUTF8(src),
      new DeprecatedUTF8(dst),
      FSEditLog.toLogLong(timestamp)};
    logEdit(Ops.OP_RENAME, new ArrayWritable(DeprecatedUTF8.class, info),
        toBytesWritable(options));
  }

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  /** 
   * Add set replication record to edit log
   */
  void logSetReplication(String src, short replication) {
    logEdit(Ops.OP_SET_REPLICATION, 
            new DeprecatedUTF8(src), 
            FSEditLog.toLogReplication(replication));
  }

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   * 
   * @param src the string representation of the path to a directory
   * @param quota the directory size limit
   */
  void logSetQuota(String src, long nsQuota, long dsQuota) {
    logEdit(Ops.OP_SET_QUOTA, new DeprecatedUTF8(src), 
            new LongWritable(nsQuota), new LongWritable(dsQuota));
  }

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            new LongWritable(nsQuota), new LongWritable(dsQuota));
  }


  /**  Add set permissions record to edit log */
  void logSetPermissions(String src, FsPermission permissions) {
    logEdit(Ops.OP_SET_PERMISSIONS, new DeprecatedUTF8(src), permissions);
  }

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    logEdit(Ops.OP_SET_PERMISSIONS, new DeprecatedUTF8(src), permissions);
  }


  /**  Add set owner record to edit log */
  void logSetOwner(String src, String username, String groupname) {
    DeprecatedUTF8 u = new DeprecatedUTF8(username == null? "": username);
    DeprecatedUTF8 g = new DeprecatedUTF8(groupname == null? "": groupname);
    logEdit(Ops.OP_SET_OWNER, new DeprecatedUTF8(src), u, g);
  }

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  /**
   * concat(trg,src..) log
   */
  void logConcat(String trg, String [] srcs, long timestamp) {
    int size = 1 + srcs.length + 1; // trg, srcs, timestamp
    DeprecatedUTF8 info[] = new DeprecatedUTF8[size];
    int idx = 0;
    info[idx++] = new DeprecatedUTF8(trg);
    for(int i=0; i<srcs.length; i++) {
      info[idx++] = new DeprecatedUTF8(srcs[i]);
    }
    info[idx] = FSEditLog.toLogLong(timestamp);
    logEdit(Ops.OP_CONCAT_DELETE, new ArrayWritable(DeprecatedUTF8.class, info));
  }

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  /** 
   * Add delete file record to edit log
   */
  void logDelete(String src, long timestamp) {
    DeprecatedUTF8 info[] = new DeprecatedUTF8[] { 
      new DeprecatedUTF8(src),
      FSEditLog.toLogLong(timestamp)};
    logEdit(Ops.OP_DELETE, new ArrayWritable(DeprecatedUTF8.class, info));
  }

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  /** 
   * Add access time record to edit log
   */
  void logTimes(String src, long mtime, long atime) {
    DeprecatedUTF8 info[] = new DeprecatedUTF8[] { 
      new DeprecatedUTF8(src),
      FSEditLog.toLogLong(mtime),
      FSEditLog.toLogLong(atime)};
    logEdit(Ops.OP_TIMES, new ArrayWritable(DeprecatedUTF8.class, info));
  }

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  /** 
   * Add a create symlink record.
   */
  void logSymlink(String path, String value, long mtime, 
                  long atime, INodeSymlink node) {
    DeprecatedUTF8 info[] = new DeprecatedUTF8[] { 
      new DeprecatedUTF8(path),
      new DeprecatedUTF8(value),
      FSEditLog.toLogLong(mtime),
      FSEditLog.toLogLong(atime)};
    logEdit(Ops.OP_SYMLINK, 
            new ArrayWritable(DeprecatedUTF8.class, info),
            node.getPermissionStatus());

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Related Classes of org.apache.hadoop.hdfs.DeprecatedUTF8

org.apache.hadoop.hdfs.server.namenode.FSEditLog

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$AddCloseOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$ConcatDeleteOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$DeleteOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$MkdirOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$ReassignLeaseOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$RenameOldOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$RenameOp

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$SetOwnerOp

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