[STANBOL-678] SolrYard needs to quote search terms like "OR" "AND" "NOT"

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: entityhub-0.11.0
• Component/s: Entityhub
• Assignee: Rupert Westenthaler
• Reporter: Rupert Westenthaler
• Created: 09/Jul/12 13:54
• Updated: 17/Jul/13 15:14
• Resolved: 09/Jul/12 15:18

Description

Queries for keywords used by Solr do create exceptions like

Caused by: org.apache.lucene.queryParser.ParseException: Cannot parse '(((@de/skos\:prefLabel/:MVVM)) OR ((@/skos\:prefLabel/:MVVM)) OR ((@de/skos\:prefLabel/:OR)) OR ((@/skos\:prefLabel/:OR)))': Encountered " <OR> "OR "" at line 1, column 88.
Was expecting one of:
   "(" ...
   "*" ...
   <QUOTED> ...
   <TERM> ...
   <PREFIXTERM> ...
   <WILDTERM> ...
   "[" ...
   "{" ...
   <NUMBER> ...
   
at org.apache.lucene.queryParser.QueryParser.parse(QueryParser.java:211)
at org.apache.solr.search.LuceneQParser.parse(LuceneQParserPlugin.java:80)
[...]

Even that I can not find in the documentation that one needs to quote queries like

field:OR
field:AND
.. possible other ..

quoting those

field:"OR"

solves those.

As there is no disadvantage in quoting all field values that do not contain wildcards the best solution seams to be to quote them all.

NOTE: that the SolrYard already treats queries and tokens that use wildcard chars differently.