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OnJava8-Examples/innerclasses/GreenhouseControls.java at master · CSapprenticeWT/OnJava8-Examples · GitHub

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// innerclasses/GreenhouseControls.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// This produces a specific application of the

// control system, all in a single class. Inner

// classes allow you to encapsulate different

// functionality for each type of event.

import innerclasses.controller.*;

public class GreenhouseControls extends Controller {

private boolean light = false;

public class LightOn extends Event {

public LightOn(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here to

// physically turn on the light.

light = true;

}

@Override public String toString() {

return "Light is on";

}

}

public class LightOff extends Event {

public LightOff(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here to

// physically turn off the light.

light = false;

}

@Override public String toString() {

return "Light is off";

}

}

private boolean water = false;

public class WaterOn extends Event {

public WaterOn(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here.

water = true;

}

@Override public String toString() {

return "Greenhouse water is on";

}

}

public class WaterOff extends Event {

public WaterOff(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here.

water = false;

}

@Override public String toString() {

return "Greenhouse water is off";

}

}

private String thermostat = "Day";

public class ThermostatNight extends Event {

public ThermostatNight(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here.

thermostat = "Night";

}

@Override public String toString() {

return "Thermostat on night setting";

}

}

public class ThermostatDay extends Event {

public ThermostatDay(long delayTime) {

super(delayTime);

}

@Override public void action() {

// Put hardware control code here.

thermostat = "Day";

}

@Override public String toString() {

return "Thermostat on day setting";

}

}

// An example of an action() that inserts a

// new one of itself into the event list:

public class Bell extends Event {

public Bell(long delayTime) {

super(delayTime);

}

@Override public void action() {

addEvent(new Bell(delayTime.toMillis()));

}

@Override public String toString() {

return "Bing!";

}

}

public class Restart extends Event {

private Event[] eventList;

public

Restart(long delayTime, Event[] eventList) {

super(delayTime);

this.eventList = eventList;

for(Event e : eventList)

addEvent(e);

}

@Override public void action() {

for(Event e : eventList) {

e.start(); // Rerun each event

addEvent(e);

}

start(); // Rerun this Event

addEvent(this);

}

@Override public String toString() {

return "Restarting system";

}

}

public static class Terminate extends Event {

public Terminate(long delayTime) {

super(delayTime);

}

@Override

public void action() { System.exit(0); }

@Override public String toString() {

return "Terminating";

}

}

}

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