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From Sébastien Nussbaumer (JIRA) <j...@apache.org>
Subject [jira] [Created] (TIKA-2874) Parsing of 4 mb excel file generates 163 mb worth of words
Date Wed, 15 May 2019 07:22:00 GMT
Sébastien Nussbaumer created TIKA-2874:

             Summary: Parsing of 4 mb excel file generates 163 mb worth of words
                 Key: TIKA-2874
                 URL: https://issues.apache.org/jira/browse/TIKA-2874
             Project: Tika
          Issue Type: Bug
          Components: parser
    Affects Versions: 1.20
            Reporter: Sébastien Nussbaumer
         Attachments: tika-config.xml

When I parse the attached 4 mb excel file, I get 163 mb worth of words. When checking out
the words I see that some cells are repeated *many hundred thousand* of times.

I tried passing the words through the uniq linux command line utility and got a file with
a much more reasonnable 16 kb file.

This is the code I use : 

TikaConfig config = new TikaConfig(new ClassPathResource("tika-config.xml").getURL());
Detector detector = config.getDetector();
Parser autoDetectParser = new AutoDetectParser(config);
Tika tika = new Tika(detector, autoDetectParser);
try (LanguageWriter languageWriter = new LanguageWriter(LanguageDetector.getDefaultLanguageDetector().loadModels());
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(output, StandardCharsets.UTF_8);
        CompositeWriter compositeWriter = new CompositeWriter(outputStreamWriter, languageWriter))

    WriteOutContentHandler handler = new WriteOutContentHandler(compositeWriter, indexedChars);
    ParseContext context = new ParseContext();
    context.set(Parser.class, tika.getParser());
    tika.getParser().parse(input, new BodyContentHandler(handler), new Metadata(), context);

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