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From "Anders Melchiorsen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1398) PatternTokenizerFactory ignores offset corrections
Date Wed, 02 Sep 2009 08:20:32 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750325#action_12750325
] 

Anders Melchiorsen commented on SOLR-1398:
------------------------------------------

Thanks. The patch appears to work, in that analysis.jsp now gives correct results. However,
I am still not able to get highlights in my actual application, due to the below error. There
is the same problem with the WhitespaceTokenizer.

I guess that this is a separate issue, where the highlighter is also not using offset corrections.
Would you mind opening a ticket for that issue, as I am not quite sure what to put into it,
or where to put it.


SEVERE: org.apache.solr.common.SolrException: org.apache.lucene.search.highlight.InvalidTokenOffsetsException:
Token teknisk exceeds length of provided text sized 803
	at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:328)
	at org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:89)
	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:195)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1299)
	at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:241)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
	at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
	at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
	at org.mortbay.jetty.Server.handle(Server.java:285)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:821)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:513)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:208)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
	at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
	at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
Caused by: org.apache.lucene.search.highlight.InvalidTokenOffsetsException: Token teknisk
exceeds length of provided text sized 803
	at org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:254)
	at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:321)
	... 23 more



> PatternTokenizerFactory ignores offset corrections
> --------------------------------------------------
>
>                 Key: SOLR-1398
>                 URL: https://issues.apache.org/jira/browse/SOLR-1398
>             Project: Solr
>          Issue Type: Bug
>          Components: Analysis
>    Affects Versions: 1.4
>            Reporter: Anders Melchiorsen
>            Assignee: Koji Sekiguchi
>            Priority: Minor
>             Fix For: 1.4
>
>         Attachments: SOLR-1398.patch
>
>
> I have an analyzer with a MappingCharFilterFactory followed by a PatternTokenizerFactory.
This causes wrong offsets, and thus wrong highlights.
> Replacing the tokenizer with WhitespaceTokenizerFactory gives correct offsets, so I expect
the problem to be with PatternTokenizerFactory.

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