Package org.apache.mahout.common.iterator

Examples of org.apache.mahout.common.iterator.FileLineIterator.peek()

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        averageDiffs.clear();
        allRecommendableItemIDs.clear();
       
        FileLineIterator iterator = new FileLineIterator(dataFile, false);
        String firstLine = iterator.peek();
        while (firstLine.isEmpty() || firstLine.charAt(0) == COMMENT_CHAR) {
          iterator.next();
          firstLine = iterator.peek();
        }
        long averageCount = 0L;
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        FileLineIterator iterator = new FileLineIterator(dataFile, false);
        String firstLine = iterator.peek();
        while (firstLine.isEmpty() || firstLine.charAt(0) == COMMENT_CHAR) {
          iterator.next();
          firstLine = iterator.peek();
        }
        long averageCount = 0L;
        while (iterator.hasNext()) {
          averageCount = processLine(iterator.next(), averageCount);
        }
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    this.lastModified = dataFile.lastModified();
    this.lastUpdateFileModified = readLastUpdateFileModified();

    FileLineIterator iterator = new FileLineIterator(dataFile, false);
    String firstLine = iterator.peek();
    while (firstLine.isEmpty() || firstLine.charAt(0) == COMMENT_CHAR) {
      iterator.next();
      firstLine = iterator.peek();
    }
    Closeables.closeQuietly(iterator);
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    FileLineIterator iterator = new FileLineIterator(dataFile, false);
    String firstLine = iterator.peek();
    while (firstLine.isEmpty() || firstLine.charAt(0) == COMMENT_CHAR) {
      iterator.next();
      firstLine = iterator.peek();
    }
    Closeables.closeQuietly(iterator);

    delimiter = determineDelimiter(firstLine);
    delimiterPattern = Splitter.on(delimiter);
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