com.paulesson.elevator.elevatorcontrol.CommandProcessingThread.java Source code

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Here is the source code for com.paulesson.elevator.elevatorcontrol.CommandProcessingThread.java

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package com.paulesson.elevator.elevatorcontrol;

import com.paulesson.elevator.elevatorcontrol.model.RequestCommand;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * This thread processes commands on the command queue and send them to the
 * ElevatorCommandRouter to process asynchronously. 
 *
 * @author Paul Esson
 */
@Component
public class CommandProcessingThread extends Thread {

    ElevatorCommandRouter ecr;

    boolean running = true;

    @Autowired
    public void setElevatorCommandRouter(ElevatorCommandRouter ecr) {
        this.ecr = ecr;
    }

    @PostConstruct
    public void init() {
        this.start();
    }

    @PreDestroy
    public void destory() {
        running = false;
        this.interrupt();
    }

    @Override
    public void run() {
        RequestCommand currentCommand;
        Elevator currentElevator;
        while (running) {
            try {
                currentCommand = null;
                ecr.waitForElevatorAvailable();
                currentCommand = ecr.waitDequeueCommand();
                currentElevator = ecr.requestElevator(currentCommand);
                ecr.execute(currentCommand, currentElevator);

            } catch (InterruptedException e) {

            }
        }
    }
}