The implementation of broker is presented here. Working language is Java. T his project has 2 modules:

• client-module;
• message-module;

Message broker (message-module/src/);

Client (client-module/src/);

See protocol-specs for more info about client-broker communication.

In order to build you should have installed maven.

Client (client-module/);

In terminal type mvn clean package that will produce in target/ folder a jar.

Message broker (message-module/);

In terminal type mvn clean package that will produce in target/ folder a jar.

You can run the following jars:

Message broker (message-module/);

Verify if BIND_PORT(see constants below) is not already in use then cd in target folder and type java -jar message-broker.jar

Client (client-module/);

Program is running if broker is running on (localhost:BIND_PORT(see constants below)), run jar with arguments: arg0 :

• s(for subscriber)
• p(for publisher)

cd in target folder and type java -jar client-jar-with-dependecies.jar [p|s].

Constants

These constants are used in project:

• BIND_PORT = 7979 (Number of tcp port)
• HOST = "127.0.0.1" (host ip for clients)