//Create a class for contact sensor package ContactSensor import Timer.SimulatedTimer public class ContactSensor { private String id private String label private String displayName private String contactState private String currentContact private String latestValue private String alarmState ContactSensor(String id, String label, String displayName, String contactState, String currentContact, String alarmState, String latestValue) { this.id = id this.label = label this.displayName = displayName this.contactState = contactState this.currentContact = currentContact this.latestValue = latestValue this.alarmState = alarmState } def setValue(String value) { this.latestValue = contactState println("the contact sensor with id:$id is triggered to $value!") this.contactState = value this.currentContact = value } def on() { println("the contact sensor with id:$id is armed!") this.alarmState = "armed" } def off() { println("the contact sensor with id:$id is not armed!") this.alarmState = "not armed" } def currentValue(String deviceFeature) { if (deviceFeature == "contact") { return contactState } } def latestValue(String deviceFeature) { if (deviceFeature == "contact") { return latestValue } } }