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