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From "Oleg Varaksin (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-2416) Text.escapeIllegalXpathSearchChars doesn't work correct - Full text search failed
Date Tue, 01 Dec 2009 11:53:20 GMT
Text.escapeIllegalXpathSearchChars doesn't work correct - Full text search failed
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                 Key: JCR-2416
                 URL: https://issues.apache.org/jira/browse/JCR-2416
             Project: Jackrabbit Content Repository
          Issue Type: Bug
          Components: jackrabbit-jcr-commons
    Affects Versions: 1.6.0
         Environment: Don't matter
            Reporter: Oleg Varaksin
            Priority: Minor


Hello,

I use instructions from http://wiki.apache.org/jackrabbit/EncodingAndEscaping to escape values
in queries for full text search, but the method Text.escapeIllegalXpathSearchChars does something
strange replacements. If I want to search a whole phrase I surround the text with double quotes.
This is described in JCR 170 (section 6.6.5.2 jcr:contains Function) A term may be either
a single word or a phrase delimited by double quotes ("). Well. I write now a String "\"Have
much fun\"", pass it through Text.escapeIllegalXpathSearchChars and let execute then query.
An exception is thrown:

javax.jcr.RepositoryException: Exception building query: org.apache.lucene.queryParser.ParseException:
Cannot parse '"Have much fun\"': Lexical error at line 1, column 17.  Encountered: <EOF>
after : "\"Have much fun\\\""

I think, Text.escapeIllegalXpathSearchChars doesn't work correct if the whole phrase is surrounded
by \" (double quotes within String) and the sign \" is the last sign.

Query statement: //element(*, cssns:file)[jcr:contains(jcr:content, '"Have much fun"')]
Executing: QueryManager.createQuery(statement, Query.XPATH).execute();

I use as dependency Apache Lucene Core 2.4.1. As workaround I call now simple userValue.replaceAll("'",
"''"); instead of Text.escapeIllegalXpathSearchChars(userValue).replaceAll("'", "''") and
it works fine!

Best regards.
Oleg.


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