RestServiceLauncher.java

package cloud_project;

import java.io.IOException;
import java.net.URI;

import org.glassfish.grizzly.http.server.HttpServer;
import org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpServerFactory;
import org.glassfish.jersey.server.ResourceConfig;

public class RestServiceLauncher {
	
	public static HttpServer startServer(String baseUri) {
        // create a resource config that scans for JAX-RS resources and providers
        // in cloud_project package
        final ResourceConfig rc = new ResourceConfig().packages("cloud_project");       

        // create and start a new instance of grizzly http server
        // exposing the Jersey application at BASE_URI
        System.out.println("Trying to starting service at: " + baseUri);
        return GrizzlyHttpServerFactory.createHttpServer(URI.create(baseUri), rc);
    }
	
	public static void main(String[] args) throws IOException {
    	if(args.length != 1 && args.length !=2){
    		System.out.println("Please pass the public IP or public hostname of the local machine/VM as parameter. e.g. ec2-54-254-184-72.ap-southeast-1.compute.amazonaws.com");
    		System.out.println("You can also optionally pass a port number for the REST service. 8081 is used by default.");
    		return;
    	}
    	
    	int port = args.length == 2 ? Integer.parseInt(args[1]) : 8081;
    	String baseUri = "http://" + args[0] + ":" + port + "/cloud_project";
    	
        final HttpServer server = startServer(baseUri);
        System.out.println(String.format("Jersey app started with WADL available at "
                + "%s/application.wadl\nHit enter to stop it...", baseUri));
        System.in.read();
        server.shutdownNow();
    }

}