JarCastingglb-ctl
A Java client for the Galera Load Balancer control interface
Warning
All of this project was done really quickly (in less than an hour) to be used in an other project. It works OK for me, but may set your computer on fire, YMMV. Use at your own risk.
Usage
In your pom.xml:
<dependency>
<groupId>ca.pjer</groupId>
<artifactId>glb-ctl</artifactId>
<version>0.0.1</version>
</dependency>
In your code:
import ca.pjer.glbctl.GlbCtl;
import ca.pjer.glbctl.GlbCtlFactory;
import ca.pjer.glbctl.GlbNode;
import java.io.IOException;
public class Main {
public static void main(String[] args) {
// try-with-resources to open and finally close the connection
try (GlbCtl ctl = GlbCtlFactory.connect("127.0.0.1", 4444)) {
// add or update node (weight of -1 to remove, 0 to drain)
ctl.update(new GlbNode("10.0.0.1", 8080), 5);
// query node
ctl.getInfo().getRouter().entrySet().forEach(entry ->
System.out.println(entry.getKey().getHost() + ":" + entry.getKey().getPort()
+ " has a weight of " + entry.getValue().getWeight()
+ " and " + entry.getValue().getConns() + " active connections"));
// query stats
System.out.println("Stats: " + ctl.getStat());
} catch (InterruptedException e) {
// ignore
} catch (IOException e) {
e.printStackTrace();
}
}
}