Package org.apache.hadoop.mapred.LineRecordReader

Examples of org.apache.hadoop.mapred.LineRecordReader.LineReader.readLine()

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        Text row = new Text();
        lineReader = new LineReader((InputStream)in, hconf);

        while(true) {
          row.clear();
          long bytes = lineReader.readLine(row);
          if(bytes <= 0) {
            break;
          }
          proc.processLine(row);
        }
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      for (Path indexFinalPath : paths) {
        FSDataInputStream ifile = fs.open(indexFinalPath);
        LineReader lr = new LineReader(ifile, conf);
        try {
          Text line = new Text();
          while (lr.readLine(line) > 0) {
            if (++lineCounter > maxEntriesToLoad) {
              throw new HiveException("Number of compact index entries loaded during the query exceeded the maximum of " + maxEntriesToLoad
                  + " set in " + HiveConf.ConfVars.HIVE_INDEX_COMPACT_QUERY_MAX_ENTRIES.varname);
            }
            add(line);
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        Text key = new Text();
        Text val = new Text();
        Text line = new Text();
        lineReader = new LineReader((InputStream)clientIn_, job_);
        // 3/4 Tool to Hadoop
        while (lineReader.readLine(line) > 0) {
          answer = line.getBytes();
          splitKeyVal(answer, line.getLength(), key, val);
          output.collect(key, val);
          line.clear();
          numRecWritten_++;
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    public void run() {
      Text line = new Text();
      LineReader lineReader = null;
      try {
        lineReader = new LineReader((InputStream)clientErr_, job_);
        while (lineReader.readLine(line) > 0) {
          String lineStr = line.toString();
          if (matchesReporter(lineStr)) {
            if (matchesCounter(lineStr)) {
              incrCounter(lineStr);
            } else if (matchesStatus(lineStr)) {
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        Text row = new Text();
        lineReader = new LineReader((InputStream)in, hconf);

        while(true) {
          row.clear();
          long bytes = lineReader.readLine(row);
          if(bytes <= 0) {
            break;
          }
          proc.processLine(row);
        }
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  }
 
  public void testUTF8() throws Exception {
    LineReader in = makeStream("abcd\u20acbdcd\u20ac");
    Text line = new Text();
    in.readLine(line);
    assertEquals("readLine changed utf8 characters",
                 "abcd\u20acbdcd\u20ac", line.toString());
    in = makeStream("abc\u200axyz");
    in.readLine(line);
    assertEquals("split on fake newline", "abc\u200axyz", line.toString());
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    Text line = new Text();
    in.readLine(line);
    assertEquals("readLine changed utf8 characters",
                 "abcd\u20acbdcd\u20ac", line.toString());
    in = makeStream("abc\u200axyz");
    in.readLine(line);
    assertEquals("split on fake newline", "abc\u200axyz", line.toString());
  }

  public void testNewLines() throws Exception {
    LineReader in = makeStream("a\nbb\n\nccc\rdddd\r\neeeee");
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  }

  public void testNewLines() throws Exception {
    LineReader in = makeStream("a\nbb\n\nccc\rdddd\r\neeeee");
    Text out = new Text();
    in.readLine(out);
    assertEquals("line1 length", 1, out.getLength());
    in.readLine(out);
    assertEquals("line2 length", 2, out.getLength());
    in.readLine(out);
    assertEquals("line3 length", 0, out.getLength());
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  public void testNewLines() throws Exception {
    LineReader in = makeStream("a\nbb\n\nccc\rdddd\r\neeeee");
    Text out = new Text();
    in.readLine(out);
    assertEquals("line1 length", 1, out.getLength());
    in.readLine(out);
    assertEquals("line2 length", 2, out.getLength());
    in.readLine(out);
    assertEquals("line3 length", 0, out.getLength());
    in.readLine(out);
    assertEquals("line4 length", 3, out.getLength());
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    Text out = new Text();
    in.readLine(out);
    assertEquals("line1 length", 1, out.getLength());
    in.readLine(out);
    assertEquals("line2 length", 2, out.getLength());
    in.readLine(out);
    assertEquals("line3 length", 0, out.getLength());
    in.readLine(out);
    assertEquals("line4 length", 3, out.getLength());
    in.readLine(out);
    assertEquals("line5 length", 4, out.getLength());
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