Solr and internationalization

[Stéphane Campinas <st...@deri.org>]

Hi,

I am working on a plugin for Solr, and in this project, a 
QueryNodeException [1] is thrown in the case of an error while parsing 
the query.
However, I receive the following exception in such a case:

    HTTP Status 500 - Can't find bundle for base name
    org.apache.lucene.queryParser.core.messages.QueryParserMessages,
    locale en_IE java.util.MissingResourceException: Can't find bundle
    for base name
    org.apache.lucene.queryParser.core.messages.QueryParserMessages,
    locale en_IE at
    java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1427)
    .....

It seems that this is because my solr app cannot find a ressource bundle 
while writing the exception message. Lucene supports 
internationalization in query's exception messages thanks to the NLS [2] 
class.
It should search for terms in the default property file 
*org/apache/lucene/queryParser/core/messages/QueryParserMessages.properties*, 
which is set in [1], in the case of the property file in the current 
locale missing, in my case "en_IE".
Creating the file with the current local, i.e., 
org/apache/lucene/queryParser/core/messages/QueryParserMessages*_en_IE*.properties, 
and putting it into a jar placed in the lib folder of my solr app 
changed nothing.
Would you know why the default property file is not seen ? What would be 
the required steps to add internationalization support in Solr ? Or, at 
least, to remove the "bundle" exception ?

Regards,

[1] 
http://lucene.apache.org/java/3_1_0/api/contrib-queryparser/org/apache/lucene/queryParser/core/QueryNodeException.html
[2] 
http://lucene.apache.org/java/3_1_0/api/core/org/apache/lucene/messages/NLS.html
-- 
Campinas Stéphane

Re: Solr and internationalization

[Chris Hostetter <ho...@fucit.org>]

: It seems that this is because my solr app cannot find a ressource bundle while
: writing the exception message. Lucene supports internationalization in query's
: exception messages thanks to the NLS [2] class.
	...
: Creating the file with the current local, i.e.,
: org/apache/lucene/queryParser/core/messages/QueryParserMessages*_en_IE*.properties,
: and putting it into a jar placed in the lib folder of my solr app changed
: nothing.

I suspect this is a classloader problem -- i haven't looked at the code 
for the QueryParser you're using, but more then likely it's asking *it's* 
classloader to find the file, and if thta's not the same classloader as 
where the properties file is located, there may be problems.

where are you putting the contrib-queryparser jar in your setup? where are 
you putting the properties file? where are you putting your custom solr 
plugin that uses the contrib-queryparser code?


-Hoss