Fixed devices library and vacuum measurements

numass-control/vac/src/main/java/inr/numass/readvac/devices/VacCollectorDevice.java

@@ -22,6 +22,7 @@ import java.util.Map;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.TimeUnit;
 
 /**
@@ -34,6 +35,7 @@ public class VacCollectorDevice extends Sensor<DataPoint> {
 
     /**
      * Sensors in reversed order
+     *
      * @param name
      * @param context
      * @param meta
@@ -72,11 +74,13 @@ public class VacCollectorDevice extends Sensor<DataPoint> {
     private class VacuumMeasurement extends AbstractMeasurement<DataPoint> {
 
         private final ValueCollector collector = new PointCollector(this::onResult, sensorMap.keySet());
-        private final ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
+        private ScheduledExecutorService executor;
         private ScheduledFuture<?> currentTask;
 
         @Override
         public void start() {
+            executor = Executors
+                .newSingleThreadScheduledExecutor((Runnable r) -> new Thread(r, "VacuumMeasurement thread"));
             currentTask = executor.scheduleWithFixedDelay(() -> {
                 sensorMap.entrySet().stream().parallel().forEach((entry) -> {
                     try {
@@ -98,7 +102,9 @@ public class VacCollectorDevice extends Sensor<DataPoint> {
         public boolean stop(boolean force) {
             boolean isRunning = currentTask != null;
             if (isRunning) {
+                getLogger().debug("Stoping vacuum collector measurement");
                 currentTask.cancel(force);
+                executor.shutdown();
                 currentTask = null;
                 onFinish();
             }

numass-control/vac/src/main/java/inr/numass/readvac/fx/VacCollectorController.java

@@ -10,6 +10,7 @@ import hep.dataforge.control.devices.Device;
 import hep.dataforge.control.devices.DeviceListener;
 import hep.dataforge.control.measurements.Measurement;
 import hep.dataforge.control.measurements.MeasurementListener;
+import hep.dataforge.control.measurements.Sensor;
 import hep.dataforge.data.DataPoint;
 import hep.dataforge.exceptions.ControlException;
 import hep.dataforge.exceptions.MeasurementException;
@@ -139,7 +140,10 @@ public class VacCollectorController implements Initializable, DeviceListener, Me
     public void stopMeasurement() {
         try {
             getDevice().stopMeasurement(true);
-        } catch (MeasurementException ex) {
+            for (Sensor sensor : getDevice().getSensors()) {
+                sensor.shutdown();
+            }
+        } catch (ControlException ex) {
             throw new RuntimeException(ex);
         }
     }

numass-control/vac/src/main/java/inr/numass/readvac/fx/VacuumeterView.java

@@ -24,6 +24,7 @@ import javafx.fxml.FXMLLoader;
 import javafx.fxml.Initializable;
 import javafx.scene.Node;
 import javafx.scene.control.Label;
+import javafx.scene.paint.Color;
 import org.controlsfx.control.StatusBar;
 
 /**
@@ -52,6 +53,9 @@ public class VacuumeterView extends DeviceViewController implements MeasurementL
     @SuppressWarnings("unchecked")
     public void accept(Device device, String measurementName, Measurement measurement) {
         measurement.addListener(this);
+        if (device.meta().hasValue("color")) {
+            valueLabel.setTextFill(Color.valueOf(device.meta().getString("color")));
+        }
     }
 
     @Override

numass-control/vac/src/main/java/inr/numass/readvac/test/TestVac.java

@@ -9,6 +9,7 @@ import hep.dataforge.context.GlobalContext;
 import hep.dataforge.control.measurements.Sensor;
 import hep.dataforge.control.virtual.SensorFactory;
 import hep.dataforge.control.virtual.Virtual;
+import hep.dataforge.meta.MetaBuilder;
 import inr.numass.readvac.devices.VacCollectorDevice;
 import inr.numass.readvac.fx.VacCollectorController;
 import java.time.Duration;
@@ -37,10 +38,15 @@ public class TestVac extends Application {
                 } else {
                     return null;
                 }
-            }).addState("power").build();
+            })
+                    .addState("power")
+                    .setMeta(new MetaBuilder("device")
+                            .setValue("color", "magenta")
+                            .setValue("thickness", 3))
+                    .build();
 
             VacCollectorDevice collector = new VacCollectorDevice("collector",
-                    GlobalContext.instance(), null, poweredSensor, sensor3, sensor2, sensor1);
+                    GlobalContext.instance(), null, sensor1, sensor2, sensor3, poweredSensor);
             collector.init();
 
             FXMLLoader loader = new FXMLLoader(getClass().getResource("/fxml/VacCollector.fxml"));
@@ -66,7 +72,6 @@ public class TestVac extends Application {
             controller.getDevice().shutdown();
         }
         super.stop();
-        System.exit(0);
     }
 
     /**