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To create streams, you can drag and drop the functions Functions from the list on the left side to the right side. As you can see in in Usage Engine, these functions Functions which are available from the functions library are categorized into Collectors, Processors, and Forwarders.
- Collectors gather data from external systems or devices, with the exception of the Count function Function.
- Processors receive data from collectors or other processors and deliver data to forwarders or other processors for further handling.
- Forwarders distribute data from the stream to external systems or devices, with the exception of the No Operation function Function.
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All collectors and forwarders support ZIP files up to version 4.5 (which includes Zip64 support - archives with 4GB+ files). There is no support for encrypted (password protected) zips, or symlinks. |
The function Function icons have small arrows which indicate data flow direction, and therefore the function Function type. Collectors have an arrow on the right edge, pointing outwards. Processors have arrows on both edges indicating an incoming and outgoing flow. Forwarders have an arrow on the left edge, pointing inwards.
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Configuration and Preview
When you double-click a functionFunction, you open the window where you configure the function Function and preview data that is being collected, processed, or forwarded by the functionFunction.
All entries are autosaved. To check that your configuration is valid, click Preview to generate a preview.
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Even if you do not click Preview before you exit a configuration, your entries are saved. If you want to clear all of the entries that you have added to a configuration, you need to delete the function Function and drag the relevant function Function to the canvas again to re-configure. |
After configuring any function Function in Usage Engine, clicking Preview enables you to view input and output preview data for that functionFunction. Across all functions Functions in Usage Engine, the input and output preview data displayed depends on the function Function type. Refer to the table below for more information:
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When the preview data is generated, a maximum of 10 records are displayed. |
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Collector Functions process data according to built-in logic. The service reads data using appropriate formats, accepted by the various Functions — CSV, XLS, and XML are supported. The default table names are ordered according to the columns and rows headers. |
When you hover the cursor over the function Function icon upon opening the configuration, you can view the function tooltip with a brief description of the functionFunction. Clicking 
directs you to the relevant documentation for the functionFunction.
Function Descriptions
Take a look at the relevant section to find out more about each of these functions.
Zuora QueryFunctions.
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