Added thermostat, not complete

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/Thermostat.java

@@ -0,0 +1,64 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
+
+import java.math.BigDecimal;
+import javax.persistence.Column;
+import javax.validation.constraints.NotNull;
+
+/** A thermostat capable of controlling cooling and heating. */
+public class Thermostat extends InputDevice {
+
+    enum ThermostatState {
+        OFF,
+        IDLE,
+        COOLING,
+        HEATING
+    }
+
+    @Column @NotNull private BigDecimal targetTemperature;
+
+    @Column @NotNull BigDecimal averageTemperature;
+
+    @Column @NotNull private final Sensor temperatureSensor;
+
+    @Column @NotNull private ThermostatState state;
+
+    /** Creates a thermostat with a temperature sensor and its initial OFF state */
+    public Thermostat() {
+        super("thermostat");
+        this.temperatureSensor = new Sensor();
+        this.temperatureSensor.setSensor(Sensor.SensorType.TEMPERATURE);
+        this.state = ThermostatState.OFF;
+    }
+
+    /** Setter method for the thermostat state */
+    public void setState(ThermostatState state) {
+        this.state = state;
+    }
+
+    /**
+     * Sets the target temperature to be reached. Changes the thermostat state accordingly and waits
+     * until such temperature is reached by the embedded sensor to become idle again.
+     *
+     * @param targetTemperature - the temperature to be reached by the thermostat
+     */
+    public void setTargetTemperature(BigDecimal targetTemperature) {
+        if (this.state == ThermostatState.OFF) {
+            this.state = ThermostatState.IDLE;
+        }
+
+        this.targetTemperature = targetTemperature;
+        BigDecimal actualTemperature = this.temperatureSensor.getValue();
+
+        if (actualTemperature.compareTo(targetTemperature) == -1) {
+            this.setState(ThermostatState.HEATING);
+        } else {
+            this.setState(ThermostatState.COOLING);
+        }
+
+        while (!(this.temperatureSensor.getValue().equals(this.targetTemperature))) {
+            /** Do nothing, wait for the target temperature to be reached */
+        }
+
+        this.setState(ThermostatState.IDLE);
+    }
+}

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/ThermostatRepository.java

@@ -0,0 +1,3 @@
+package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
+
+public interface ThermostatRepository extends DeviceRepository<Thermostat> {}