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From "Robert Zotter (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-2463) Using an evaluator outside the scope of an entity results in a null context
Date Fri, 08 Apr 2011 20:53:05 GMT

     [ https://issues.apache.org/jira/browse/SOLR-2463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Zotter updated SOLR-2463:
--------------------------------

    Description: 
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}

  was:
When using an Evaluator outside an entity element the Context argument is null.

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();
 }
}

<dataSource   name="..."
              type="..."
              driver="..."
              url="..."
              user="${dataimporter.functions.toLowerCase('THIS_WILL_NOT_WORK')}"
              password="..."
              batchSize="..."/>


 <entity name="..."
            dataSource="..."
            query="select * from ${dataimporter.functions.toLowerCase('THIS_WILL_WORK')}"


> 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, 3.1.1, 4.0
>            Reporter: Robert Zotter
>            Priority: Minor
>
> 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}

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