HI Richard,
Eclipse seems to crib about StringReader.PARAM_TEXT and
wants me to change the name?
Harshal
On Wed, May 8, 2013 at 5:00 PM, Richard Eckart de Castilho <
[email protected]> wrote:
> Am 08.05.2013 um 13:07 schrieb harshal patni <[email protected]>:
>
> >>> I am trying to call AnalysisEngineDescription XML
> >>> files within UIMAFIT. Here is what I do..
> >>>
> >>> CollectionReader reader =
> >>> UriCollectionReader.getCollectionReaderFromFiles(files);
> >>>
> >>> XMLInputSource in1 = new
> >> XMLInputSource("desc/analysisenginedescription.xml"
> >>> );
> >>>
> >>> AnalysisEngineDescription aeDesc2 =
> >>> UIMAFramework.getXMLParser().parseAnalysisEngineDescription(in1);
> >>>
> >>> AggregateBuilder builder = new AggregateBuilder();
> >>>
> >>> builder.add(aeDesc2);
> >>>
> >>> SimplePipeline.runPipeline(reader,
> builder.createAggregateDescription());
>
>
> > Caused by: java.lang.NullPointerException
> >
> > at org.apache.uima.annotator.WhitespaceTokenizer.process(
> > WhitespaceTokenizer.java:106)
>
> No idea what happens here. The line reads (WhitespaceTokenizer 2.3.1)
>
> char[] textContent = this.cas.getDocumentText().toCharArray();
>
>
> I have created a simple test pipeline on my system reading:
>
> CollectionReaderDescription reader =
> CollectionReaderFactory.createDescription(
> StringReader.class, StringReader.PARAM_TEXT, "This is a test
> .");
>
> AnalysisEngineDescription tokenizer = AnalysisEngineFactory
> .createAnalysisEngineDescription("WhitespaceTokenizer");
>
> AggregateBuilder builder = new AggregateBuilder();
> builder.add(tokenizer);
>
> SimplePipeline.runPipeline(reader,
> builder.createAggregateDescription());
>
> The StringReader does nothing more than create a single CAS with the text
> in PARAM_TEXT
> set as document text.
>
> This appears to run without an error.
>
> Is it possible that your reader is does not produce proper text? When I
> change StringReader
> to leave documentText = null, then I also get this exception:
>
> Caused by: java.lang.NullPointerException
> at
> org.apache.uima.annotator.WhitespaceTokenizer.process(WhitespaceTokenizer.java:106)
>
> -- Richard
