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https://issues.apache.org/jira/browse/PIG-1612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Laukik Chitnis updated PIG-1612:
--------------------------------
Attachment: PIG-1612-2.patch
> error reporting: PigException needs to have a way to indicate that its
> message is appropriate for user
> ------------------------------------------------------------------------------------------------------
>
> Key: PIG-1612
> URL: https://issues.apache.org/jira/browse/PIG-1612
> Project: Pig
> Issue Type: Improvement
> Reporter: Thejas M Nair
> Assignee: Laukik Chitnis
> Fix For: 0.9.0
>
> Attachments: PIG-1612-2.patch
>
>
> The error message printed to the user by pig is the message from the
> exception that is the 'root cause' from the chain of getCause() of exception
> that has been thrown. But often the 'root cause' exception does not have
> enough context that would make for a better error message. It should be
> possible for a PigException to indicate to the code that determines the error
> message that its getMessage() string should be used instead of that of the
> 'cause' exception.
> The following code in LogUtils.java is used to determine the exception that
> is the 'root cause' -
> {code}
> public static PigException getPigException(Throwable top) {
> Throwable current = top;
> Throwable pigException = top;
> while (current != null && current.getCause() != null){
> current = current.getCause();
> if((current instanceof PigException) &&
> (((PigException)current).getErrorCode() != 0)) {
> pigException = current;
> }
> }
> return (pigException instanceof PigException?
> (PigException)pigException : null);
>
> }
> {code}
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