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Heimdall

Heimdall is supposed to be a lightweight and easy to use pub sub communication framework you can build your infrastructure on.

Installation / Usage

  • Install Maven
  • Clone this repo
  • Install: mvn clean install

Maven dependencies

Client:

<dependency>
  <groupId>de.d3adspace</groupId>
  <artifactId>heimdall-client</artifactId>
  <version>1.0.0-SNAPSHOT</version>
</dependency>

Server:

<dependency>
  <groupId>de.d3adspace</groupId>
  <artifactId>heimdall-server</artifactId>
  <version>1.0.0-SNAPSHOT</version>
</dependency>

Commons:

<dependency>
  <groupId>de.d3adspace</groupId>
  <artifactId>heimdall-commons</artifactId>
  <version>1.0.0-SNAPSHOT</version>
</dependency>

Example

Server:

package de.d3adspace.heimdall.client;

import de.d3adspace.heimdall.server.HeimdallServer;
import de.d3adspace.heimdall.server.HeimdallServerFactory;
import de.d3adspace.heimdall.server.config.HeimdallServerConfig;
import de.d3adspace.heimdall.server.config.HeimdallServerConfigBuilder;

public class HeimdallServerExample {

	public static void main(String[] args) {
		HeimdallServerConfig config = new HeimdallServerConfigBuilder()
			.setServerHost("localhost")
			.setServerPort(1337)
			.createHeimdallServerConfig();

		HeimdallServer heimdallServer = HeimdallServerFactory.createHeimdallServer(config);
		heimdallServer.start();
	}
}

Client:

package de.d3adspace.heimdall.client;

import de.d3adspace.heimdall.client.HeimdallClient;
import de.d3adspace.heimdall.client.HeimdallClientFactory;
import de.d3adspace.heimdall.client.annotation.Channel;
import de.d3adspace.heimdall.client.config.HeimdallClientConfig;
import de.d3adspace.heimdall.client.config.HeimdallClientConfigBuilder;
import de.d3adspace.heimdall.client.handler.PacketHandler;
import org.json.JSONObject;

public class HeimdallClientExample {

	public static void main(String[] args) {
		HeimdallClientConfig config = new HeimdallClientConfigBuilder()
			.setServerHost("localhost")
			.setServerPort(1337)
			.createHeimdallClientConfig();

		HeimdallClient client = HeimdallClientFactory.createHeimdallClient(config);
    client.connect();

		PacketHandler packetHandler = new PacketHandlerExample();
		client.subscribe(packetHandler);

		client.publish("cluster", new JSONObject().put("Hello", "World!"));

		client.unsubscribe(packetHandler);

		client.disconnect();
	}
}
package de.d3adspace.heimdall.client;

import de.d3adspace.heimdall.client.annotation.Channel;
import de.d3adspace.heimdall.client.handler.PacketHandler;
import org.json.JSONObject;

@Channel("cluster")
public class PacketHandlerExample implements PacketHandler {

	public void handlePacket(JSONObject jsonObject) {
		System.out.println("Message in cluster: " + jsonObject);
	}
}