CutActor.java

package org.softlang.company.actors;

import java.util.List;

import org.softlang.company.messages.CutMessage;
import org.softlang.company.messages.DepartmentsMessage;
import org.softlang.company.messages.EmployeeMessage;
import org.softlang.company.messages.EndMessage;
import org.softlang.company.model.Department;
import org.softlang.company.model.Employee;

import akka.actor.ActorRef;
import akka.actor.Props;
import akka.actor.UntypedActor;

public class CutActor extends UntypedActor {
	private ActorRef back = null;

	@Override
	public void onReceive(Object message) throws Exception {
		ActorRef child = null;
		if (message instanceof CutMessage) { // decide what to do depending on
												// the message
			back = this.getSender();
			child = this.context().actorOf(
					Props.create(DepartmentsActor.class), "cut"); // create new
																	// child
			List<Department> ds = ((CutMessage) message).getCompany()
					.getDepartments();
			child.tell(new DepartmentsMessage(ds), getSelf()); // send message
																// asynchronously
																// to actor
		} else if (message instanceof EndMessage) {
			back.tell(message, this.getSelf());
		} else if (message instanceof EmployeeMessage) { // get employees
			cutSalaries(((EmployeeMessage) message).getEmployees());
		} else
			unhandled(message);
	}

	/**
	 * cut all salaries from es
	 * 
	 * @param es
	 */
	private void cutSalaries(List<Employee> es) {
		for (Employee e : es)
			e.setSalary(e.getSalary() / 2);

	}
}