Caution

This extension was created for educational purposes and has undergone no testing. It is neither supported nor endorsed by PTC.

Thread Loop extension

This extension allows a service to be executed in its own thread on each node of a ThingWorx HA cluster. It can be useful to collect metrics or other information that are node specific at a given interval (bypass the singleton node and event processor).

Usage:

1. Import the thingworx-threadloop-extension in ThingWorx

2. Create a Thing that extends ThreadloopTemplate (or just import Demo/Things_SampleThreadloop.xml)

   1. Override the Run service with your code. The minimal implementation should be:

   /*
     Your code here.
     You can pass information to the next loop via data/result.
     data.count = 123;
   */
   result = data;

   • Input parameters:
     • platformId: name of the platform node on which the service is running
     • effectivePause: effective pause (can be useful to identify long JVM paused)
     • data: JSON returned by previous execution of the service (node local - If you want to share information between nodes, use a Thing property).
   2. Grant the Service Execute permission on Run service to System user.
   3. Adjust the execution interval using the pause setting on the Configuration page (default is 30sec).