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Question

Set writer feature type name dynamically (no fanout)

  • February 13, 2015
  • 2 replies
  • 22 views
J
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Hi All,

 

I have a workbench that I'm calling with a WorkbenchRunner. I want to be able to set the output filename (it's a CSV writer) dynamically, based on a parameter. There will be one unchanging filename per run of the workbench.

 

 

But I do not want to use a Fanout because it caches results to RAM/disk and sorts them before writing at the very end. This is a problem because the datasets I'm processing are too large to want to do that, and as noted, there's no need as there's only one filename.

 

Is there a way to do this? Maybe with Python?

 

 

(I've already put in a request for a "features are ordered by group" option on the fanout, which would solve this problem)

 

Thanks,

Jonathan

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2 replies

takashi
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  • takashiCelebrity
  • February 13, 2015
Hi Jonathan,

 

 

You can enter the parameter (macro) name directly to CSV File Name (Feature Type Name) parameter of the writer feature type. For example, if you define a published user parameter named "DEST_FEATURE_TYPE", this setting is possible:

 

 

 

Then, you can pass a preferable feature type name (file name) to the parameter through the WorkspaceRunner for each run.

 

 

Takashi
Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?
J
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  • jonathan
  • Author
  • February 16, 2015
Hi Takashi,

 

Thanks; that did exactly what I want!

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