badlog

A data logging system for FRC Robots. Pairs with badlogvis, a visualization tool.

Setup

Manual

Place badlog.jar (found on GitHub release page) into a lib folder with json-simple-1.1.1.jar.

Gradle

Add

repositories {
    maven { url "https://jitpack.io" }
}

dependencies {
    compile "com.github.dominikWin:badlog:v0.1.1"
}

to the build.gradle file.

Example

public class Main {
	public static void main(String[] args) {
	
		// Init
		BadLog log = BadLog.init("test.bag");
		{
			BadLog.createValue("Example Value", System.getProperty("os.version"));
			
			BadLog.createTopic("Example Topic", "Bytes", () -> (double) Runtime.getRuntime().freeMemory());
			
			BadLog.createTopic("Topic with attributes", BadLog.UNITLESS, () -> 3.2, "attr1", "attr2");
			
			BadLog.createTopicSubscriber("Subscribed topic", "s", DataInferMode.DEFAULT);
		}
		log.finishInitialization();
		
		// Execution
		
		for (int i = 0; i < 10; i++) {
			
			// Publish to subscribed topic
			BadLog.publish("Subscribed topic", (double) System.nanoTime());
			
			
			log.updateTopics();
			log.log();
		}
	}
}

Whitepaper

Link