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From "Jens Zastrow (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2899) Custom DIH Functions in Delta-Query have null Context
Date Tue, 15 Nov 2011 13:51:52 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2899?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150491#comment-13150491
] 

Jens Zastrow commented on SOLR-2899:
------------------------------------

As a workaround we defined an NOP SqlEntityProcessor.

package org.apache.solr.handler.dataimport;

public class ContextPropagationSQLEntityProcessor extends SqlEntityProcessor {
  @Override
  public void init(Context context) {
    super.init(context);
    if (Context.CURRENT_CONTEXT.get() == null) {
      Context.CURRENT_CONTEXT.set(context);
    }
  }
}
                
> Custom DIH Functions in Delta-Query have null Context
> -----------------------------------------------------
>
>                 Key: SOLR-2899
>                 URL: https://issues.apache.org/jira/browse/SOLR-2899
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 3.4
>            Reporter: Jens Zastrow
>            Priority: Blocker
>              Labels: custom, dih, functions
>
> We must use a custom fucntion in the deltaQuery, but the passed in Context is always
null, preventing any variable resolution.
> In full-import mode behavior is correct.
> Looking into the sources showed that the Conext is used from a thread-local Context.CURRENT_CONTEXT.get(),

> wich is never set by (Context.CURRENT_CONTEXT.set()) for the Context created in DocBuilder.java:871

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