Aded puck detection using Esera

src/main/java/ch/psi/mxsc/EseraDetection.java

@@ -0,0 +1,58 @@
+package ch.psi.mxsc;
+
+import static ch.psi.mxsc.MainPanel.NUMBER_OF_PUCKS;
+import ch.psi.pshell.device.Device;
+import ch.psi.pshell.device.DeviceAdapter;
+import ch.psi.utils.State;
+import java.util.List;
+
+/**
+ *
+ */
+public class EseraDetection implements AutoCloseable{
+    final Device device;
+
+    public EseraDetection(Device device){  
+        this.device = device;
+        if (device!=null){
+            device.addListener(listener);
+        }        
+    }
+    
+    
+    DeviceAdapter listener = new DeviceAdapter(){
+        @Override
+        public void onStateChanged(Device device, State state, State former) {
+            if (!state.isInitialized()){
+                MainPanel.getInstance().clearPuckStates();
+            }
+        }
+
+        @Override
+        public void onValueChanged(Device device, Object value, Object former) {
+            if ((value == null) || !(value instanceof List)){
+                MainPanel.getInstance().clearPuckStates();
+            } else {
+                List l = (List)value;
+                PuckState[] puckState = MainPanel.getInstance().getPuckStates();
+                for (int i=0; i<NUMBER_OF_PUCKS; i++ ){
+                    try{
+                        List det = (List) l.get(i);
+                        puckState[i].set(det.get(0).equals(0), det.get(1).equals(0));
+                    } catch (Exception ex){
+                        puckState[i].clear();
+                    }
+                }
+                MainPanel.getInstance().repaint();
+            }
+        }
+    };
+    
+    @Override
+    public void close() {
+        if (device!=null){
+            device.removeListener(listener);
+        }
+        MainPanel.getInstance().clearPuckStates();
+    }
+}