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Osma Suominen commented on JENA-1506: ------------------------------------- Great work, thanks [~code-ferret]! > Add configurable filters and tokenizers > --------------------------------------- > > Key: JENA-1506 > URL: https://issues.apache.org/jira/browse/JENA-1506 > Project: Apache Jena > Issue Type: New Feature > Components: Text > Affects Versions: Jena 3.7.0 > Reporter: Code Ferret > Assignee: Code Ferret > Priority: Major > Fix For: Jena 3.7.0 > > > In support of [Jena-1488|https://issues.apache.org/jira/browse/JENA-1488], > this issue proposes to add a feature to allow including defined filters and > tokenizers, similar to {{DefinedAnalyzer}}, for the {{ConfigurableAnalyzer}}, > allowing configurable arguments such as the {{excludeChars}}. I've looked at > {{ConfigurableAnalyzer}} and its assembler and it should be straightforward. > I would add tokenizer and filter definitions to {{TextIndexLucene}} similar > to the support for adding analyzers: > {code:java} > text:defineFilters ( > [ text:defineFilter <#foo> ; > text:filter [ > a text:GenericFilter ; > text:class "fi.finto.FoldingFilter" ; > text:params ( > [ text:paramName "excludeChars" ; > text:paramType text:TypeString ; > text:paramValue "whatevercharstoexclude" ] > ) > ] ; > ] > ) > {code} > {{GenericFilterAssembler}} and {{GenericTokenizerAssmbler}} would make use of > much of the code in {{GenericAnalyzerAssembler}}. The changes to > {{ConfigurableAnalyzer}} and {{ConfigurableAnalyzerAssembler}} are > straightforward and mostly involve retaining the resource URI rather than > extracting the localName. > Such an addition will make it easy to create new tokenizers and filters that > could be dropped in by just adding the classes onto the jena/fuseki classpath > or by referring to ones already included in Jena (via Lucene or otherwise) > and putting the appropriate assembler bits in the configuration. -- This message was sent by Atlassian JIRA (v7.6.3#76005)