[PATCH] Refactor InsertUpdate.processRow (first) - REVIEW NEEDED

[Max Hofer]

Split functionality in simpler, smaller methods. Move those methods to
InsertUpdateMeta (code smell: InsertUpdate called a lot of methods loacted in
InsertUpdateMeta class). The InsertUpdateMeta class is used to fill
InsertUpdateData.

NOTE: review needed - some logging statements were disabled since we have no
access to the logging object in InsertUpdateMeta. Is there a way to log from the
InsertUpdateMeta class?

[Max]

I'm currently working on PDI-6522 (or at least I read into the existing code).

The patch above is my first try to refactor the existing code. Since I'm new I have
some general questions.

Is such code cleaning wanted?

Who is going to review the patches? Is there a kind of mentor for project newbies to whom we
can address general questions?

Now some specific questions to the patch:
* is there a kind of documentation for the threading model used in PDI? It is kind of hard to write
multi-threading code if the big-picture for it is missing.
* Logging: the patch disabled some logging information because the InsertUpdateMeta class
has no access to the logging object of InsertUpdate. Can the "MetaData" class also log?

kinds regards,
Max

[Will Gorman]

Hi Max,

Thanks for this and the other patches as well! Please create JIRA
cases for each patch that you'd like to see incorporated into the
product, we'll make sure to review the code changes.

Will

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