Build and run Thingsboard

Follow these guides:

• https://thingsboard.io/docs/user-guide/contribution/how-to-contribute/
• https://thingsboard.io/docs/user-guide/install/building-from-source/

In short:

• Clone (Thingsboard)[https://github.com/thingsboard/thingsboard]
• Install Java 11
• Install PostgreSQL
• Initialize dev DB
  • Note: When on Windows, use application/target/windows/install_dev_db.bat.
• Build jar: mvn clean install -DskipTests
• Start TB: java -jar application/target/thingsboard-${VERSION}-boot.jar
• Sign in: http://localhost:8080 / Username: tenant@thingsboard.org / PW: tenant

Configure TB for device attribute inefficiency

Inefficiency being tested: ./rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/util/EntitiesRelatedDeviceIdAsyncLoader.java:42

1. Add relation to device

• http://localhost:8080/devices
• Select device Thermostat T1
• Open relations tab and click "plus"
• Select entity type = "Device" and entity = "Test Device A1"
• Click "Add"
  • Final attributes tab should look like the following:

2. Add attributes node to thermostat rule chain

• http://localhost:8080/ruleChains
• Select Thermostat rule chain
• Select "Open rule chain"
• Drag a "related device attributes" node into the graph
• Fill in any name (e.g. Inefficiency Test)
  • No other fields need to be changed
• Click add
• Attach node to output of "Save Timeseries" node (on the Post telemetry branch)
• Select "Success" for link label
  • Final chain should look like the following:
• Click orange check in bottom right to save chain

Configure script

• Change TB host and port, iteration count, and delay if needed in .env
  • Iterations/delay also be passed as command-line arguments
• Install dependencies via npm i

Run script

• node ./index.js: Will repeatedly post telemetry to the Thermostat T1 device, causing the rule chain to look up information about the related device (Test Device A1).