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From "Jerry Quinn (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-693) IntFieldSource incompatible with sint field type
Date Tue, 12 Aug 2008 21:13:44 GMT

    [ https://issues.apache.org/jira/browse/SOLR-693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621980#action_12621980
] 

Jerry Quinn commented on SOLR-693:
----------------------------------

I found SortableIntFieldSource but it's not publicly accessible.  It's also in org.apache.solr.schema
instead of org.apache.solr.search.function like all the other ValueSource objects.

> IntFieldSource incompatible with sint field type
> ------------------------------------------------
>
>                 Key: SOLR-693
>                 URL: https://issues.apache.org/jira/browse/SOLR-693
>             Project: Solr
>          Issue Type: Bug
>          Components: search
>    Affects Versions: 1.3
>         Environment: RHEL 5, java6, builtin jetty container
>            Reporter: Jerry Quinn
>
> I'm trying to create a custom scoring query in Solr to implement a date bias.  I have
a custom query parser that I'm using, that does nothing but wrap a BoostedQuery around the
original query, which works in general.
> I'm indexing and storing the day number in an sint field.  To implement my query, I extract
the contents using org.apache.solr.search.function.IntFieldSource.  Unfortunately, this throws
an exception when it executes:
> HTTP ERROR: 500
> For input string: "€?"
> java.lang.NumberFormatException: For input string: "€?"
> 	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:61)
> 	at java.lang.Integer.parseInt(Integer.java:460)
> 	at java.lang.Integer.parseInt(Integer.java:510)
> 	at org.apache.lucene.search.FieldCacheImpl$3.parseInt(FieldCacheImpl.java:148)
> 	at org.apache.lucene.search.FieldCacheImpl$7.createValue(FieldCacheImpl.java:262)
> 	at org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:72)
> 	at org.apache.lucene.search.FieldCacheImpl.getInts(FieldCacheImpl.java:245)
> 	at org.apache.lucene.search.FieldCacheImpl.getInts(FieldCacheImpl.java:239)
> 	at org.apache.solr.search.function.IntFieldSource.getValues(IntFieldSource.java:50)
> 	at org.apache.solr.search.function.FunctionQuery$AllScorer.<init>(FunctionQuery.java:103)
> 	at org.apache.solr.search.function.FunctionQuery$FunctionWeight.scorer(FunctionQuery.java:81)
> 	at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:132)
> 	at org.apache.lucene.search.Searcher.search(Searcher.java:126)
> 	at org.apache.lucene.search.Searcher.search(Searcher.java:105)
> 	at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:966)
> 	at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:838)
> 	at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:269)
> 	at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:160)
> 	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:175)
> 	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
> 	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1151)
> I ran into exactly the same problem when I tried to use the CustomScoreQuery and IntFieldSource
classes from Lucene.
> I've tracked the problem down to the fact that IntFieldSource expects the contents of
the field to actually be an integer as returned by FieldCache.getInts().  However, Solr converts
a sortable int using NumberUtils.int2sortablestr().
> If I change my code to create a custom FieldCache.IntParser that applies NumberUtils.SortableStr2int
before returning the value, my query works as expected.  For example:
> class MyIntParser implements FieldCache.IntParser {
>   public int parseInt(String val) { return NumberUtils.SortedStr2int(val, 0, val.length());
}
> }
> Query q = new BoostedQuery(qry, new IntFieldSource("myfield", new MyIntParser()));

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