Hi again!
Here is my problem in more detail: in addition to indexing, I need the
multi-value field to be stored as-is. And if I pass it into the analyzer as
multiple atomic tokens, it stores only the first of them.
What do I need to do to my custom analyzer to make it store all the atomic
tokens concatenated eventually?
--
Igor
27.09.2013, 18:12, "Igor Shalyminov" <ishalymi...@yandex-team.ru>:
> Hello!
>
> I have really long document field values. Tokens of these fields are of the
> form: word|payload|position_increment. (I need to control position increments
> and payload manually.)
> I collect these compound tokens for the entire document, then join them with
> a '\t', and then pass this string to my custom analyzer.
> (For the really long field strings something breaks in the
> UnicodeUtil.UTF16toUTF8() with ArrayOutOfBoundsException).
>
> The analyzer is just the following:
>
> class AmbiguousTokenAnalyzer extends Analyzer {
> private PayloadEncoder encoder = new IntegerEncoder();
>
> @Override
> protected TokenStreamComponents createComponents(String fieldName, Reader
> reader) {
> Tokenizer source = new DelimiterTokenizer('\t',
> EngineInfo.ENGINE_VERSION, reader);
> TokenStream sink = new DelimitedPositionIncrementFilter(source, '|');
> sink = new CustomDelimitedPayloadTokenFilter(sink, '|', encoder);
> sink.addAttribute(OffsetAttribute.class);
> sink.addAttribute(CharTermAttribute.class);
> sink.addAttribute(PayloadAttribute.class);
> sink.addAttribute(PositionIncrementAttribute.class);
> return new TokenStreamComponents(source, sink);
> }
> }
>
> CustomDelimitedPayloadTokenFilter and DelimitedPositionIncrementFilter have
> 'incrementToken' method where the rightmost "|aaa" part of a token is
> processed.
>
> The field is configured as:
> attributeFieldType.setIndexed(true);
> attributeFieldType.setStored(true);
> attributeFieldType.setOmitNorms(true);
> attributeFieldType.setTokenized(true);
> attributeFieldType.setStoreTermVectorOffsets(true);
> attributeFieldType.setStoreTermVectorPositions(true);
> attributeFieldType.setStoreTermVectors(true);
> attributeFieldType.setStoreTermVectorPayloads(true);
>
> The problem is, if I pass to the analyzer the field itself (one huge string -
> via document.add(...) ), it works OK, but if I pass token after token,
> something breaks at the search stage.
> As I read somewhere, these two ways must be the same from the resulting index
> point of view. Maybe my analyzer misses something?
>
> --
> Best Regards,
> Igor Shalyminov
>
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