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https://issues.apache.org/jira/browse/SOLR-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13497207#comment-13497207
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Dominik Siebel commented on SOLR-2141:
--------------------------------------
Hi guys,
I think I might have found the root of evil:
SOLR-3262 (removing "threads" from DIH). Problem is that in nested entites the
used VariableResolverImpl differs from the one used by the EvaluatorBag (since
everytime the getVariableResolver method is called a new one gets created) in
the functions namespace (since that one get's initialized in the DocBuilder
constructor).
Anyway: I removed the private functionsNamespace cache property from the
docBuilder and moved the call EvaluatorBag.getFunctionsNamespace() into
DocBuilder.getVariableResolver(). That fixes all of my problems.
[~vkirilchuk], [~sandeep2852] please find attached patch and let me know if
this fixes your errors, too.
> NullPointerException when using escapeSql function
> --------------------------------------------------
>
> Key: SOLR-2141
> URL: https://issues.apache.org/jira/browse/SOLR-2141
> Project: Solr
> Issue Type: Bug
> Components: contrib - DataImportHandler
> Affects Versions: 1.4.1
> Environment: openjdk 1.6.0 b12
> Reporter: Edward Rudd
> Assignee: Koji Sekiguchi
> Attachments: dih-config.xml, dih-file.xml, SOLR-2141.b341f5b.patch,
> SOLR-2141-sample.patch, SOLR-2141-test.patch
>
>
> I have two entities defined, nested in each other..
> <entity name="article" query="select category, subcategory from articles">
> <entity name="other" query="select other from othertable where
> category='${dataimporter.functions.escapeSql(article.category)}'
> AND
> subcategory='${dataimporter.functions.escapeSql(article.subcategory)}'">
> </entity>
> </entity>
> Now, when I run that it bombs on any article where subcategory = '' (it's a
> NOT NULL column so empty string is there) If i do where subcategory!='' in
> the article query it works fine (aside from not pulling in all of the
> articles).
> org.apache.solr.handler.dataimport.DataImportHandlerException:
> java.lang.NullPointerException
> at
> org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:424)
> at
> org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:383)
> at
> org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:242)
> at
> org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:180)
> at
> org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:331)
> at
> org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:389)
> at
> org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:370)
> Caused by: java.lang.NullPointerException
> at
> org.apache.solr.handler.dataimport.EvaluatorBag$1.evaluate(EvaluatorBag.java:75)
> at
> org.apache.solr.handler.dataimport.EvaluatorBag$5.get(EvaluatorBag.java:216)
> at
> org.apache.solr.handler.dataimport.EvaluatorBag$5.get(EvaluatorBag.java:204)
> at
> org.apache.solr.handler.dataimport.VariableResolverImpl.resolve(VariableResolverImpl.java:107)
> at
> org.apache.solr.handler.dataimport.TemplateString.fillTokens(TemplateString.java:81)
> at
> org.apache.solr.handler.dataimport.TemplateString.replaceTokens(TemplateString.java:75)
> at
> org.apache.solr.handler.dataimport.VariableResolverImpl.replaceTokens(VariableResolverImpl.java:87)
> at
> org.apache.solr.handler.dataimport.SqlEntityProcessor.nextRow(SqlEntityProcessor.java:71)
> at
> org.apache.solr.handler.dataimport.EntityProcessorWrapper.nextRow(EntityProcessorWrapper.java:237)
> at
> org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:357)
> ... 6 more
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