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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