PigProgressable object not being set in the EvalFunc 
-----------------------------------------------------

                 Key: PIG-540
                 URL: https://issues.apache.org/jira/browse/PIG-540
             Project: Pig
          Issue Type: Bug
          Components: impl
    Affects Versions: types_branch
            Reporter: Viraj Bhat
             Fix For: types_branch


The UDF RegexMatcher, reports its progress using the reporter (PigProgressable) 
object in the exec method. It seems that the reporter object is not being set 
in the EvalFunc and hence the following piece of Pig script runs into problems 
in the mapper with the following error.
{code}
register string.jar;
define getCompanyName string.RegexMatcher('www.(.*).com');
a = load '/user/viraj/myurldata.txt' as (url:chararray, count:long);
b = foreach a generate url, getCompanyName(url) as bcookie;
dump b;
{code}
=======================================================================================================================
Error that results from the above script
=======================================================================================================================
2008-11-21 02:17:00,593 [main] ERROR 
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher - Error 
message from task (map) 
task_200810152105_0170_m_000000java.lang.NullPointerException
        at string.RegexMatcher.exec(RegexMatcher.java:50)
        at string.RegexMatcher.exec(RegexMatcher.java:30)
        at 
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:179)
        at 
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:201)
        at 
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:230)
        at 
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:180)
        at 
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:170)
        at 
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:158)
        at 
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.map(PigMapOnly.java:65)
        at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
        at 
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2209)
=======================================================================================================================

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