Create AverageSensor.java

Week9/SensorAndTemperatureMeasurement/application/AverageSensor.java

@@ -0,0 +1,68 @@
+
+package application;
+
+/**
+ *
+ * @author giuseppedesantis
+ */
+
+import java.util.List;
+import java.util.ArrayList;
+
+public class AverageSensor implements Sensor{
+    private List<Sensor> sensors;
+    private List<Integer> readings;
+
+    public AverageSensor(){
+        this.sensors = new ArrayList<Sensor>();
+        this.readings = new ArrayList<Integer>();
+    }
+
+    public void addSensor(Sensor additional){
+        this.sensors.add(additional);
+    }
+
+    @Override
+    public boolean isOn(){
+        for(Sensor s : this.sensors){
+            if(s.isOn()){
+                return true;
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public void on(){
+        for(Sensor s : this.sensors){
+            s.on();
+        }
+    }
+
+    @Override
+    public void off(){
+        for(Sensor s: this.sensors){
+            s.off();
+        }
+    }
+
+    @Override
+    public int measure(){
+        if(this.sensors.isEmpty() || this.isOn() == false){
+            throw new IllegalStateException("No sensors or average sensor is off");
+        }else{
+            int sum = 0;
+            for(Sensor s : this.sensors){
+                sum += s.measure();
+            }
+            int average = sum/sensors.size();
+            this.readings.add(average);
+            return average;
+        }
+    }
+
+    public List<Integer> readings(){
+        return readings;
+    }
+}
+