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From "Robert Zotter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2463) Using an evaluator outside the scope of an entity results in a null context
Date Fri, 14 Sep 2012 20:05:10 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13456077#comment-13456077
] 

Robert Zotter commented on SOLR-2463:
-------------------------------------

Still an issue in 3.6.1
                
> Using an evaluator outside the scope of an entity results in a null context
> ---------------------------------------------------------------------------
>
>                 Key: SOLR-2463
>                 URL: https://issues.apache.org/jira/browse/SOLR-2463
>             Project: Solr
>          Issue Type: Bug
>          Components: contrib - DataImportHandler
>    Affects Versions: 3.1.1, 3.5, 3.6, 4.0-ALPHA, 3.6.1
>            Reporter: Robert Zotter
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 3.1.1
>
>
> When using an Evaluator outside an entity element the Context argument is null.
> {code:title=foo.LowerCaseFunctionEvaluator.java|borderStyle=solid}
> public class LowerCaseFunctionEvaluator extends Evaluator {
>  public String evaluate(String expression, Context context) {
>    List l = EvaluatorBag.parseParams(expression, context.getVariableResolver());
>    
>    if (l.size() != 1) {
>      throw new RuntimeException("'toLowerCase' must have only one parameter ");
>    }
>    return l.get(0).toString().toLowerCase();
>  }
> }
> {code}
> {code:title=data-config.xml|borderStyle=solid}
> <dataSource name="..."
>             type="..."
>             driver="..."
>             url="..."
>             user="${dataimporter.functions.toLowerCase('THIS_WILL_NOT_WORK')}"
>             password="..."/>
> {code}
> {code:title=data-config.xml|borderStyle=solid}
> <entity name="..."
>         dataSource="..."
>         query="select * from ${dataimporter.functions.toLowerCase('THIS_WILL_WORK')}"/>
> {code}
> This use case worked in 1.4

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