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Posted to oak-issues@jackrabbit.apache.org by "Dave Hughes (Jira)" <ji...@apache.org> on 2020/07/21 01:03:00 UTC
[jira] [Commented] (OAK-9145) OakAnalyzer applies LowerCaseFilter
and WordDelimiterFilter in wrong order
[ https://issues.apache.org/jira/browse/OAK-9145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17161641#comment-17161641 ]
Dave Hughes commented on OAK-9145:
----------------------------------
A PR has been opened on the Github project:
[https://github.com/apache/jackrabbit-oak/pull/242]
> OakAnalyzer applies LowerCaseFilter and WordDelimiterFilter in wrong order
> --------------------------------------------------------------------------
>
> Key: OAK-9145
> URL: https://issues.apache.org/jira/browse/OAK-9145
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: indexing, jcr, lucene
> Environment: Discovered while performing DAM searches in Adobe Experience Manager.
> Searching for _savings_, the damAssetLucene index (which uses the default OakAnalyzer) does not find an asset named _savingsAccount.svg_.
> Upon configuring the index's analyzers (_/oak:index/damAssetLucene/analyzers_) to apply WordDelimiterFilter before LowerCaseFilter, the correct behaviour was seen.
> {noformat}
> {
> "jcr:primaryType": "nt:unstructured",
> "default": {
> "jcr:primaryType": "nt:unstructured",
> "tokenizer": {
> "jcr:primaryType": "nt:unstructured",
> "name": "Standard"
> },
> "filters": {
> "jcr:primaryType": "nt:unstructured",
> "WordDelimiter": {"jcr:primaryType": "nt:unstructured"},
> "LowerCase": {"jcr:primaryType": "nt:unstructured"}
> }
> }
> }
> {noformat}
> Reporter: Dave Hughes
> Priority: Minor
> Labels: easyfix
>
> I believe OakAnalyzer applies LowerCaseFilter and WordDelimiterFilter in the wrong order. WordDelimiterFilter is invoked with the GENERATE_WORD_PARTS flag, which splits camelCase/PascalCase into multiple terms, but since the LowerCaseFilter is applied first, the mixed-case is lost and the terms can't be split.
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