Using tasks in numass viewer

numass-main/src/main/java/inr/numass/actions/PrepareDataAction.java

@@ -89,7 +89,7 @@ public class PrepareDataAction extends OneToOneAction<NMFile, DataSet> {
             double cr = point.getCountRate(a, b, deadTime);
             double crErr = point.getCountRateErr(a, b, deadTime);
 
-            Instant timestamp = point.getAbsouteTime().toInstant(ZoneOffset.UTC);
+            Instant timestamp = point.getStartTime();
 
             dataList.add(new MapDataPoint(parnames, new Object[]{Uset, Uread, time, total, wind, corr, cr, crErr, timestamp}));
         }

numass-main/src/main/java/inr/numass/data/ESpectrum.java

@@ -31,6 +31,8 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import static java.lang.String.format;
+import static java.lang.String.format;
+import static java.lang.String.format;
 
 /**
  *

numass-main/src/main/java/inr/numass/data/NMPoint.java

@@ -17,13 +17,13 @@ package inr.numass.data;
 
 import hep.dataforge.data.DataPoint;
 import hep.dataforge.data.MapDataPoint;
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Arrays;
-import static java.util.Arrays.sort;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import static java.util.Arrays.sort;
 
 /**
  *
@@ -32,7 +32,7 @@ import java.util.Map;
 public class NMPoint {
 
     static final String[] dataNames = {"chanel", "count"};
-    private LocalDateTime absouteTime;
+    private Instant startTime;
 
 //    private MonitorCorrector corrector = null;
 //    private double deadTime;
@@ -54,7 +54,7 @@ public class NMPoint {
         this.pointLength = point.getLength();
         this.uset = point.getUset();
         this.uread = point.getUread();
-        this.absouteTime = point.getAbsouteTime();
+        this.startTime = point.getStartTime();
         this.eventsCount = point.getEventsCount();
 //        this.point = point;
         spectrum = calculateSpectrum(point);
@@ -106,8 +106,12 @@ public class NMPoint {
     /**
      * @return the absouteTime
      */
-    public LocalDateTime getAbsouteTime() {
+    public Instant getStartTime() {
-        return absouteTime;
+        if (startTime == null) {
+            return Instant.EPOCH;
+        } else {
+            return startTime;
+        }
     }
 
     public int getCountInChanel(int chanel) {

numass-main/src/main/java/inr/numass/data/NumassDataReader.java

@@ -24,6 +24,7 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 import java.time.format.DateTimeFormatter;
 import java.util.Scanner;
 
@@ -227,7 +228,7 @@ public class NumassDataReader {
             absoluteTime = absoluteTime.plusDays(1);
         }
 
-        point.setAbsouteTime(absoluteTime);
+        point.setStartTime(absoluteTime.toInstant(ZoneOffset.UTC));
 
         rx = readBlock(4);
         int Uread = rx[2] + 256 * rx[3];

numass-main/src/main/java/inr/numass/data/RawNMPoint.java

@@ -15,7 +15,7 @@
  */
 package inr.numass.data;
 
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -27,9 +27,9 @@ import java.util.List;
 public class RawNMPoint implements Cloneable {
 
     public static int MAX_CHANEL = 4095;
-    private LocalDateTime absouteTime;
+    private Instant startTime;
     private final List<NMEvent> events;
-    private double t;
+    private double length;
     private double uread;
 
     private double uset;
@@ -38,21 +38,21 @@ public class RawNMPoint implements Cloneable {
         this.uset = U;
         this.uread = U;
         this.events = events;
-        this.t = t;
+        this.length = t;
     }
 
     public RawNMPoint(double Uset, double Uread, List<NMEvent> events, double t) {
         this.uset = Uset;
         this.uread = Uread;
         this.events = events;
-        this.t = t;
+        this.length = t;
     }
 
-    public RawNMPoint(double uset, double uread, List<NMEvent> events, double t, LocalDateTime absouteTime) {
+    public RawNMPoint(double uset, double uread, List<NMEvent> events, double t, Instant absouteTime) {
         this.uset = uset;
         this.uread = uread;
-        this.t = t;
+        this.length = t;
-        this.absouteTime = absouteTime;
+        this.startTime = absouteTime;
         this.events = events;
     }
 
@@ -60,7 +60,7 @@ public class RawNMPoint implements Cloneable {
         events = new ArrayList<>();
         uset = 0;
         uread = 0;
-        t = Double.NaN;
+        length = Double.NaN;
     }
 
     @Override
@@ -72,8 +72,8 @@ public class RawNMPoint implements Cloneable {
         return new RawNMPoint(getUset(), getUread(), newevents, getLength());
     }
 
-    public LocalDateTime getAbsouteTime() {
+    public Instant getStartTime() {
-        return absouteTime;
+        return startTime;
     }
 
     public double getCR() {
@@ -100,10 +100,10 @@ public class RawNMPoint implements Cloneable {
      * @return the tset
      */
     public double getLength() {
-        if (Double.isNaN(t)) {
+        if (Double.isNaN(length)) {
             throw new Error();
         }
-        return t;
+        return length;
     }
 
     /**
@@ -132,7 +132,7 @@ public class RawNMPoint implements Cloneable {
         for (NMEvent newEvent : point.getEvents()) {
             res.putEvent(new NMEvent(newEvent.getChanel(), newEvent.getTime() + this.getLength()));
         }
-        res.t += point.getLength();
+        res.length += point.getLength();
         res.uread = (this.uread + point.uread) / 2;
         return res;
     }
@@ -153,15 +153,15 @@ public class RawNMPoint implements Cloneable {
         return new RawNMPoint(getUset(), getUread(), res, getLength());
     }
 
-    void setAbsouteTime(LocalDateTime absouteTime) {
+    void setStartTime(Instant absouteTime) {
-        this.absouteTime = absouteTime;
+        this.startTime = absouteTime;
     }
 
     /**
      * @param tset the tset to set
      */
     void setLength(double tset) {
-        this.t = tset;
+        this.length = tset;
     }
 
     /**
@@ -178,4 +178,5 @@ public class RawNMPoint implements Cloneable {
     void setUset(double Uset) {
         this.uset = Uset;
     }
+
 }

numass-main/src/main/java/inr/numass/data/SpectrumDataAdapter.java

@@ -15,13 +15,14 @@
  */
 package inr.numass.data;
 
+import hep.dataforge.data.DataAdapter;
 import hep.dataforge.meta.Meta;
 import hep.dataforge.data.DataPoint;
 import hep.dataforge.data.MapDataPoint;
 import hep.dataforge.data.XYDataAdapter;
 import hep.dataforge.exceptions.DataFormatException;
 import hep.dataforge.exceptions.NameNotFoundException;
-import hep.dataforge.names.Names;
+import hep.dataforge.meta.MetaBuilder;
 import hep.dataforge.values.Value;
 
 /**
@@ -30,54 +31,48 @@ import hep.dataforge.values.Value;
  */
 public class SpectrumDataAdapter extends XYDataAdapter {
 
-    private static final String ANNOTATION_TIMENAME = "timeName";
+    private static final String POINT_LENGTH_NAME = "time";
-
-    private String timeName = "time";
 
     public SpectrumDataAdapter() {
     }
 
-    public SpectrumDataAdapter(Meta aliasAnnotation) {
+    public SpectrumDataAdapter(Meta meta) {
-        super(aliasAnnotation);
+        super(meta);
-        this.timeName = aliasAnnotation.getString(ANNOTATION_TIMENAME, "X");
     }
 
-    public SpectrumDataAdapter(String xName, String yName, String yErrName, String timeTime) {
+    public SpectrumDataAdapter(String xName, String yName, String yErrName, String measurementTime) {
-        super(xName, yName, yErrName);
+        super(new MetaBuilder(DataAdapter.DATA_ADAPTER_ANNOTATION_NAME)
-        this.timeName = timeTime;
+                .setValue(X_NAME, xName)
+                .setValue(Y_NAME, yName)
+                .setValue(Y_ERR_NAME, yErrName)
+                .setValue(POINT_LENGTH_NAME, measurementTime)
+                .build()
+        );
     }
 
-    public SpectrumDataAdapter(String xName, String yName, String timeTime) {
+    public SpectrumDataAdapter(String xName, String yName, String measurementTime) {
-        super(xName, yName);
+        super(new MetaBuilder(DataAdapter.DATA_ADAPTER_ANNOTATION_NAME)
-        this.timeName = timeTime;
+                .setValue(X_NAME, xName)
+                .setValue(Y_NAME, yName)
+                .setValue(POINT_LENGTH_NAME, measurementTime)
+                .build()
+        );
     }
 
     public double getTime(DataPoint point) {
-        if (point.names().contains(timeName)) {
+        return this.getFrom(point, POINT_LENGTH_NAME, 1d).doubleValue();
-            return point.getDouble(timeName);
-        } else {
-            return 1d;
-        }
     }
 
     public DataPoint buildSpectrumDataPoint(double x, long count, double t) {
-        return new MapDataPoint(new String[]{xName,yName,timeName}, x,count,t);
+        return new MapDataPoint(new String[]{getValueName(X_NAME), getValueName(Y_NAME),
+            getValueName(POINT_LENGTH_NAME)},
+                x, count, t);
     }
 
     public DataPoint buildSpectrumDataPoint(double x, long count, double countErr, double t) {
-        return new MapDataPoint(new String[]{xName,yName,yErrName,timeName}, x,count,countErr,t);
+        return new MapDataPoint(new String[]{getValueName(X_NAME), getValueName(Y_NAME),
-    }      
+            getValueName(Y_ERR_NAME), getValueName(POINT_LENGTH_NAME)},
-
+                x, count, countErr, t);
-    @Override
-    public Meta buildAnnotation() {
-        Meta res = super.buildAnnotation();
-        res.getBuilder().putValue(ANNOTATION_TIMENAME, timeName);
-        return res;
-    }
-
-    @Override
-    public Names getNames() {
-        return Names.of(xName,yName);
     }
 
     @Override
@@ -85,23 +80,22 @@ public class SpectrumDataAdapter extends XYDataAdapter {
         return true;
     }
 
-    
-
     @Override
     public Value getYerr(DataPoint point) throws NameNotFoundException {
-        if (point.names().contains(yErrName)) {
+        if (providesYError(point)) {
-            return Value.of(super.getYerr(point).doubleValue()/getTime(point));
+            return Value.of(super.getYerr(point).doubleValue() / getTime(point));
-        } else{
+        } else {
             double y = super.getY(point).doubleValue();
-            if(y<=0) throw new DataFormatException();
+            if (y <= 0) {
-            else {
+                throw new DataFormatException();
-                return Value.of(Math.sqrt(y)/getTime(point));
+            } else {
+                return Value.of(Math.sqrt(y) / getTime(point));
             }
         }
     }
 
-    public long getCount(DataPoint point){
+    public long getCount(DataPoint point) {
-        return point.getValue(yName).numberValue().longValue();
+        return super.getY(point).numberValue().longValue();
     }
 
     @Override

numass-main/src/main/java/inr/numass/data/SpectrumGenerator.java

@@ -27,6 +27,7 @@ import java.util.Iterator;
 import org.apache.commons.math3.random.JDKRandomGenerator;
 import org.apache.commons.math3.random.RandomDataGenerator;
 import org.apache.commons.math3.random.RandomGenerator;
+import static java.lang.Double.isNaN;
 
 /**
  * Генератор наборов данных для спектров. На входе требуется набор данных,
@@ -64,7 +65,7 @@ public class SpectrumGenerator implements Generator {
 
     @Override
     public ListDataSet generateData(Iterable<DataPoint> config) {
-        ListDataSet res = adapter.buildEmptyDataSet("");
+        ListDataSet res = new ListDataSet(adapter.getFormat());
         for (Iterator<DataPoint> it = config.iterator(); it.hasNext();) {
             res.add(this.generateDataPoint(it.next()));
         }

numass-main/src/main/java/inr/numass/debunch/DebunchReportImpl.java

@@ -39,7 +39,7 @@ public class DebunchReportImpl implements DebunchReport {
     DebunchReportImpl(RawNMPoint pointBefore, DebunchData debunchData) {
         this.pointBefore = pointBefore;
         pointAfter = new RawNMPoint(pointBefore.getUset(),pointBefore.getUread(), 
-                debunchData.getDebunchedEvents(), debunchData.getDebunchedLength(),pointBefore.getAbsouteTime());
+                debunchData.getDebunchedEvents(), debunchData.getDebunchedLength(),pointBefore.getStartTime());
         this.bunches = debunchData.getBunches();
     }
     

numass-main/src/main/java/inr/numass/generators/EventChainGenerator.java

@@ -21,6 +21,9 @@ import static java.lang.Math.max;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import static java.lang.Math.max;
+import static java.lang.Math.max;
+import static java.lang.Math.max;
 
 /**
  *

numass-main/src/main/java/inr/numass/utils/OldDataReader.java

@@ -23,8 +23,8 @@ import inr.numass.data.SpectrumDataAdapter;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.util.Locale;
-import static java.util.Locale.setDefault;
 import java.util.Scanner;
+import static java.util.Locale.setDefault;
 
 /**
  *
@@ -56,7 +56,7 @@ public class OldDataReader {
 
     public static ListDataSet readData(String path, double Elow) {
         SpectrumDataAdapter factory = new SpectrumDataAdapter();
-        ListDataSet res = factory.buildEmptyDataSet("");
+        ListDataSet res = new ListDataSet(factory.getFormat());
         File file = GlobalContext.instance().io().getFile(path);
         double x;
         int count;
@@ -108,7 +108,7 @@ public class OldDataReader {
 
     public static ListDataSet readDataAsGun(String path, double Elow) {
         SpectrumDataAdapter factory = new SpectrumDataAdapter();        
-        ListDataSet res = factory.buildEmptyDataSet("");
+        ListDataSet res = new ListDataSet(factory.getFormat());
         File file = GlobalContext.instance().io().getFile(path);
         double x;
         long count;
@@ -141,7 +141,7 @@ public class OldDataReader {
     
     public static ListDataSet readSpectrumData(String path){
         SpectrumDataAdapter factory = new SpectrumDataAdapter();        
-        ListDataSet res = factory.buildEmptyDataSet("");
+        ListDataSet res = new ListDataSet(factory.getFormat());
         File file = GlobalContext.instance().io().getFile(path);
         double x;
         double count;

numass-main/src/main/java/inr/numass/utils/TritiumUtils.java

@@ -23,6 +23,8 @@ import static java.lang.Math.sqrt;
 import org.apache.commons.math3.analysis.UnivariateFunction;
 import static java.lang.Math.abs;
 import static java.lang.Math.abs;
+import static java.lang.Math.abs;
+import static java.lang.Math.abs;
 
 /**
  *

numass-main/src/main/java/inr/numass/workbench/NumassWorkbenchController.java

@@ -19,7 +19,7 @@ import hep.dataforge.description.ActionDescriptor;
 import hep.dataforge.description.DescriptorUtils;
 import hep.dataforge.exceptions.NameNotFoundException;
 import hep.dataforge.fx.LogOutputPane;
-import hep.dataforge.fx.MetaEditorComponent;
+import hep.dataforge.fx.MetaEditor;
 import hep.dataforge.fx.MetaTreeItem;
 import hep.dataforge.io.IOManager;
 import hep.dataforge.io.MetaFileReader;
@@ -67,8 +67,8 @@ public class NumassWorkbenchController implements Initializable, StagePaneHolder
     Context parentContext;
     MetaFactory<Context> contextFactory;
 
-    List<MetaEditorComponent> actionEditors = new ArrayList<>();
+    List<MetaEditor> actionEditors = new ArrayList<>();
-    MetaEditorComponent dataEditor;
+    MetaEditor dataEditor;
     Context context;
 
     Configuration dataConfig;
@@ -187,7 +187,7 @@ public class NumassWorkbenchController implements Initializable, StagePaneHolder
             }
         });
 
-        MetaEditorComponent contextEditor = MetaEditorComponent.build(contextValues, null);
+        MetaEditor contextEditor = MetaEditor.build(contextValues, null);
 
         contextEditor.geTable().setShowRoot(false);
         contextPane.setContent(contextEditor);
@@ -203,7 +203,7 @@ public class NumassWorkbenchController implements Initializable, StagePaneHolder
         } else {
             dataConfig = new Configuration("data");
         }
-        dataEditor = MetaEditorComponent.build(dataConfig,
+        dataEditor = MetaEditor.build(dataConfig,
                 DescriptorUtils.buildDescriptor(
                         DescriptorUtils.findAnnotatedElement("method::hep.dataforge.data.DataManager.read")
                 ));
@@ -219,7 +219,7 @@ public class NumassWorkbenchController implements Initializable, StagePaneHolder
         actionsConfig.setNode("action", actions);
 
         for (Configuration action : actions) {
-            MetaEditorComponent actionEditor = new MetaEditorComponent();
+            MetaEditor actionEditor = new MetaEditor();
 
             MetaTreeItem rootItem = new MetaTreeItem(action, getDescriptorForAction(action.getString("type")));
             //Freezing actions names

numass-storage/src/main/java/inr/numass/storage/NumassDataLoader.java

@@ -34,10 +34,14 @@ import java.net.URL;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.ZoneOffset;
+import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -172,13 +176,26 @@ public class NumassDataLoader extends AbstractLoader implements BinaryLoader<Env
         }
 
 //        LocalDateTime startTime = envelope.meta().get
-        RawNMPoint raw = new RawNMPoint(envelope.meta().getDouble("external_meta.HV1_value", 0),
+        double u = envelope.meta().getDouble("external_meta.HV1_value", 0);
+        RawNMPoint raw = new RawNMPoint(u, u,
                 events,
-                envelope.meta().getValue("external_meta.acquisition_time").doubleValue());
+                envelope.meta().getValue("external_meta.acquisition_time").doubleValue(),
+                readTime(envelope.meta()));
 
         return transformation.apply(raw);
     }
 
+    private static Instant readTime(Meta meta) {
+        if (meta.hasValue("date") && meta.hasValue("start_time")) {
+            LocalDate date = LocalDate.parse(meta.getString("date"), DateTimeFormatter.ofPattern("uuuu.MM.dd"));
+            LocalTime time = LocalTime.parse(meta.getString("start_time"));
+            LocalDateTime dateTime = LocalDateTime.of(date, time);
+            return dateTime.toInstant(ZoneOffset.UTC);
+        } else {
+            return Instant.EPOCH;
+        }
+    }
+
     /**
      * Read numass point without transformation
      *
@@ -244,7 +261,7 @@ public class NumassDataLoader extends AbstractLoader implements BinaryLoader<Env
         this.getPoints().stream().forEachOrdered((point) -> {
             res.add(readPoint(point));
         });
-//        res.sort((NMPoint o1, NMPoint o2) -> o1.getAbsouteTime().compareTo(o2.getAbsouteTime()));
+//        res.sort((NMPoint o1, NMPoint o2) -> o1.getStartTime().compareTo(o2.getStartTime()));
         return res;
     }
 
@@ -287,13 +304,17 @@ public class NumassDataLoader extends AbstractLoader implements BinaryLoader<Env
 
     @Override
     public Instant startTime() {
-        //TODO read meta
         return null;
+//        List<NMPoint> points = getNMPoints();
+//        if(!points.isEmpty()){
+//            return points.get(0).getStartTime();
+//        } else {
+//            return null;
+//        }
     }
 
     @Override
     public String getDescription() {
-        //TODO read from annotation
+        return meta().getString("description", "").replace("\\n", "\n");
-        return "";
     }
 }

numass-storage/src/main/java/inr/numass/storage/NumassStorage.java

@@ -85,12 +85,12 @@ public class NumassStorage extends FileStorage {
         }
     }
 
-    public static NumassStorage buildRemoteNumassRoot(String uri) throws StorageException {
+    public static NumassStorage buildNumassRoot(String uri, boolean readOnly, boolean monitor) throws StorageException {
         try {
             Meta meta = new MetaBuilder("storage")
                     .setValue("type", "file.numass")
-                    .setValue("readOnly", true)
+                    .setValue("readOnly", readOnly)
-                    .setValue("monitor", false);           
+                    .setValue("monitor", monitor);           
             return new NumassStorage(VFSUtils.getRemoteFile(uri), meta);
         } catch (FileSystemException ex) {
             throw new RuntimeException(ex);

numass-viewer/build.gradle

@@ -5,7 +5,7 @@ if (!hasProperty('mainClass')) {
 }
 mainClassName = mainClass
 
-version = "0.2.2"
+version = "0.2.3"
 
 description = "The viewer for numass data"
 

numass-viewer/src/main/java/inr/numass/viewer/FXTaskManager.java

@@ -5,11 +5,12 @@
  */
 package inr.numass.viewer;
 
+import javafx.concurrent.Task;
+
 /**
  *
  * @author Alexander Nozik <altavir@gmail.com>
  */
-public interface ProgressUpdateCallback {
+public interface FXTaskManager {
-    void setProgressText(String text);
+    void postTask(Task task);
-    void setProgress(double progress);
 }

numass-viewer/src/main/java/inr/numass/viewer/MainViewerController.java

@@ -24,10 +24,13 @@ import java.io.File;
 import java.net.URL;
 import java.util.Optional;
 import java.util.ResourceBundle;
+import java.util.concurrent.ExecutionException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import javafx.application.Platform;
+import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
+import javafx.concurrent.Task;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -48,6 +51,7 @@ import javafx.scene.control.TreeTableView;
 import javafx.scene.layout.AnchorPane;
 import javafx.scene.layout.GridPane;
 import javafx.stage.DirectoryChooser;
+import javafx.util.Duration;
 import javafx.util.Pair;
 import org.controlsfx.control.StatusBar;
 
@@ -56,7 +60,7 @@ import org.controlsfx.control.StatusBar;
  *
  * @author Alexander Nozik
  */
-public class MainViewerController implements Initializable, ProgressUpdateCallback {
+public class MainViewerController implements Initializable, FXTaskManager {
 
     public static MainViewerController build(NumassStorage root) {
         MainViewerController res = new MainViewerController();
@@ -111,14 +115,14 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
 //        TabPaneDetacher.create().makeTabsDetachable(tabPane);
         ConsoleDude.hookStdStreams(consoleArea);
 
-        SplitPaneDividerSlider slider = new SplitPaneDividerSlider(consoleSplit, 0, SplitPaneDividerSlider.Direction.DOWN);
+        SplitPaneDividerSlider slider = new SplitPaneDividerSlider(consoleSplit, 0,
+                SplitPaneDividerSlider.Direction.DOWN, Duration.seconds(1));
 
-        consoleButton.selectedProperty().addListener((ObservableValue<? extends Boolean> ov, Boolean t, Boolean t1) -> {
+        slider.aimContentVisibleProperty().bindBidirectional(consoleButton.selectedProperty());
-            slider.setAimContentVisible(t1);
-        });
-        slider.setAimContentVisible(false);
 
+        consoleButton.setSelected(false);
         loadRemoteButton.setDisable(true);
+        mspController.setCallback(this);
     }
 
     @FXML
@@ -131,39 +135,72 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
         final File rootDir = chooser.showDialog(((Node) event.getTarget()).getScene().getWindow());
 
         if (rootDir != null) {
-            storagePathLabel.setText("Storage: " + rootDir.getAbsolutePath());
+            Task dirLoadTask = new DirectoryLoadTask(rootDir.toURI().toString());
-            setProgress(-1);
+            postTask(dirLoadTask);
-            setProgressText("Building numass storage tree...");
+            Viewer.runTask(dirLoadTask);
-            new Thread(() -> {
+        }
+
+    }
+
+    private class DirectoryLoadTask extends Task<Void> {
+
+        private final String uri;
+
+        public DirectoryLoadTask(String uri) {
+            this.uri = uri;
+        }
+
+        @Override
+        protected Void call() throws Exception {
+            updateTitle("Load storage ("+uri+")");            
+            updateProgress(-1, 1);
+            updateMessage("Building numass storage tree...");
             try {
-
+                NumassStorage root = NumassStorage.buildNumassRoot(uri, true, false);
-                    NumassStorage root = NumassStorage.buildLocalNumassRoot(rootDir, true);
                 setRootStorage(root);
-
+                Platform.runLater(() -> storagePathLabel.setText("Storage: " + uri));
             } catch (StorageException ex) {
-                    setProgress(0);
+                updateProgress(0, 1);
-                    setProgressText("Failed to load local storage");
+                updateMessage("Failed to load storage " + uri);
                 Logger.getLogger(MainViewerController.class.getName()).log(Level.SEVERE, null, ex);
             }
-            }, "loader thread").start();
+            return null;
         }
 
     }
 
     @Override
-    public void setProgress(double progress) {
+    @SuppressWarnings("unchecked")
-        Platform.runLater(() -> statusBar.setProgress(progress));
+    public void postTask(Task task) {
-        //statusBar.setProgress(progress);
+        task.setOnRunning((e) -> {
-    }
+            statusBar.setText(task.getTitle() + ": " + task.getMessage());
+            statusBar.setProgress(task.getProgress());
+        });
         
-    @Override
+        task.messageProperty().addListener((ObservableValue<? extends String> observable, String oldValue, String newValue) -> {
-    public void setProgressText(String text) {
+            statusBar.setText(task.getTitle() + ": " +newValue);
-        Platform.runLater(() -> statusBar.setText(text));
+        });
-        //statusBar.setText(text);
+        
+        task.progressProperty().addListener((ObservableValue<? extends Number> observable, Number oldValue, Number newValue) -> {
+            statusBar.setProgress(newValue.doubleValue());
+        });
+
+        task.setOnSucceeded((e) -> {
+            statusBar.setText(task.getTitle() + ": Complete");
+            statusBar.setProgress(0);
+        });
+
+        task.setOnFailed((e) -> {
+            statusBar.setText(task.getTitle() + ": Failed");
+            statusBar.setProgress(0);
+        });
     }
 
     public void setRootStorage(NumassStorage root) {
-        fillNumassStorageData(root);
+        Task fillTask = new StorageDataFillTask(root);
+        postTask(fillTask);
+        Viewer.runTask(fillTask);
+
         if (mspController != null) {
             mspController.setCallback(this);
             mspController.fillMspData(root);
@@ -176,14 +213,24 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
 
     }
 
-    private void fillNumassStorageData(NumassStorage rootStorage) {
+    private class StorageDataFillTask extends Task<Void> {
-        if (rootStorage != null) {
-            setProgress(-1);
-            setProgressText("Loading numass storage tree...");
 
-            try {
+        private final NumassStorage root;
-                new NumassLoaderTreeBuilder(MainViewerController.this).fillTree(numassLoaderDataTree, rootStorage, (NumassData loader) -> {
+
-                    NumassLoaderViewComponent component = NumassLoaderViewComponent.build(loader);
+        public StorageDataFillTask(NumassStorage root) {
+            this.root = root;
+        }
+
+        @Override
+        protected Void call() throws Exception {
+            updateTitle("Fill data to UI ("+root.getName()+")");
+            this.updateProgress(-1, 1);
+            this.updateMessage("Loading numass storage tree...");
+
+            Task treeBuilderTask = new NumassLoaderTreeBuilder(numassLoaderDataTree, root, (NumassData loader) -> {
+                NumassLoaderViewComponent component = new NumassLoaderViewComponent();
+                component.loadData(loader);
+                component.setCallback(MainViewerController.this);
                 numassLoaderViewContainer.getChildren().clear();
                 numassLoaderViewContainer.getChildren().add(component);
                 AnchorPane.setTopAnchor(component, 0.0);
@@ -192,12 +239,20 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
                 AnchorPane.setBottomAnchor(component, 0.0);
                 numassLoaderViewContainer.requestLayout();
             });
-                setProgress(0);
+            postTask(treeBuilderTask);
-                setProgressText("Loaded");
+            Viewer.runTask(treeBuilderTask);
-            } catch (StorageException ex) {
+            try {
+                treeBuilderTask.get();
+                this.updateProgress(0, 1);
+                this.updateMessage("Numass storage tree loaded.");
+                this.succeeded();
+            } catch (InterruptedException | ExecutionException ex) {
+                this.failed();
                 throw new RuntimeException(ex);
             }
+            return null;
         }
+
     }
 
     @FXML
@@ -230,7 +285,7 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
         dialog.getDialogPane().setContent(grid);
 
         // Request focus on the username field by default.
-        Platform.runLater(() -> storageText.requestFocus());
+        storageText.requestFocus();
 
         // Convert the result to a username-password-pair when the login button is clicked.
         dialog.setResultConverter(dialogButton -> {
@@ -243,21 +298,9 @@ public class MainViewerController implements Initializable, ProgressUpdateCallba
         Optional<Pair<String, String>> result = dialog.showAndWait();
 
         if (result.isPresent()) {
-            storagePathLabel.setText("Storage: remote/" + result.get().getValue());
+            Task dirLoadTask = new DirectoryLoadTask(result.get().getKey() + "/data/" + result.get().getValue());
-
+            postTask(dirLoadTask);
-            setProgress(-1);
+            Viewer.runTask(dirLoadTask);
-            setProgressText("Building numass storage tree...");
-            new Thread(() -> {
-                try {
-                    NumassStorage root = NumassStorage.buildRemoteNumassRoot(result.get().getKey() + "/data/" + result.get().getValue());
-                    setRootStorage(root);
-                } catch (StorageException ex) {
-                    setProgress(0);
-                    setProgressText("Failed to load remote storage");
-                    Logger.getLogger(MainViewerController.class.getName()).log(Level.SEVERE, null, ex);
-                }
-            }, "loader thread").start();
-
         }
     }
 }

numass-viewer/src/main/java/inr/numass/viewer/MspViewController.java

@@ -22,7 +22,6 @@ package inr.numass.viewer;
  */
 import hep.dataforge.data.DataPoint;
 import hep.dataforge.data.MapDataPoint;
-import hep.dataforge.exceptions.StorageException;
 import hep.dataforge.storage.api.PointLoader;
 import hep.dataforge.storage.api.Storage;
 import hep.dataforge.values.Value;
@@ -35,6 +34,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.ResourceBundle;
 import javafx.application.Platform;
+import javafx.concurrent.Task;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -58,7 +58,7 @@ import org.slf4j.LoggerFactory;
  */
 public class MspViewController implements Initializable {
 
-    private ProgressUpdateCallback callback;
+    private FXTaskManager callback;
 
     @FXML
     private AnchorPane mspPlotPane;
@@ -119,8 +119,31 @@ public class MspViewController implements Initializable {
 
     public void fillMspData(Storage rootStorage) {
         if (rootStorage != null) {
-            try {
+            MspDataFillTask fillTask = new MspDataFillTask(rootStorage);
-                List<DataPoint> mspData = getMspData(rootStorage);
+            if(callback!= null){
+                callback.postTask(fillTask);
+            }
+            Viewer.runTask(fillTask);
+        }
+    }
+
+    private class MspDataFillTask extends Task<Void> {
+        
+        private final Storage storage;
+
+        public MspDataFillTask(Storage storage) {
+            this.storage = storage;
+        }
+        
+        @Override
+        protected Void call() throws Exception {
+            updateTitle("Fill msp data ("+storage.getName()+")");            
+            MspDataLoadTask loadTask = new MspDataLoadTask(storage);
+            if(callback!= null){
+                callback.postTask(loadTask);
+            }
+            Viewer.runTask(loadTask);
+            List<DataPoint> mspData = loadTask.get();
             Map<String, XYSeries> series = new HashMap<>();
 
             for (DataPoint point : mspData) {
@@ -150,21 +173,30 @@ public class MspViewController implements Initializable {
                 mspSeriesCollection.addSeries(series.get(name));
             }
             updateMspPane(mspSeriesCollection);
-            } catch (StorageException ex) {
+            return null;
-                throw new RuntimeException(ex);
-            }
-        }
         }
 
-    private List<DataPoint> getMspData(Storage storage) throws StorageException {
+    }
+
+    private class MspDataLoadTask extends Task<List<DataPoint>> {
+
+        private final Storage storage;
+
+        public MspDataLoadTask(Storage storage) {
+            this.storage = storage;
+        }
+
+        @Override
+        protected List<DataPoint> call() throws Exception {
+            updateTitle("Load msp data ("+storage.getName()+")");
             List<DataPoint> mspData = new ArrayList<>();
             DataPoint last = null;
             for (String loaderName : storage.loaders().keySet()) {
                 if (loaderName.startsWith("msp")) {
                     try (PointLoader mspLoader = (PointLoader) storage.getLoader(loaderName)) {
                         mspLoader.open();
-                    updateProgress("Loading mass spectrometer data from " + mspLoader.getName());
+                        updateMessage("Loading mass spectrometer data from " + mspLoader.getName());
-                    updateProgress(-1);
+                        updateProgress(-1, 1);
                         for (DataPoint dp : mspLoader.asDataSet()) {
                             mspData.add(dp);
                             last = dp;
@@ -177,28 +209,15 @@ public class MspViewController implements Initializable {
                     }
                 }
             }
-//        for (String shelfName : storage.shelves().keySet()) {
-//            mspData.addAll(getMspData(storage.getShelf(shelfName)));
-//        }
 
-        updateProgress("Loading msp data finished");
+            updateMessage("Loading msp data finished");
-        updateProgress(0);
+            updateProgress(0, 1);
             return mspData;
         }
 
-    private void updateProgress(String progress) {
-        if (callback != null) {
-            callback.setProgressText(progress);
-        }
     }
 
-    private void updateProgress(double progress) {
+    public void setCallback(FXTaskManager callback) {
-        if (callback != null) {
-            callback.setProgress(progress);
-        }
-    }
-
-    public void setCallback(ProgressUpdateCallback callback) {
         this.callback = callback;
     }
 

numass-viewer/src/main/java/inr/numass/viewer/NumassLoaderTreeBuilder.java

@@ -26,6 +26,7 @@ import java.util.List;
 import java.util.function.Consumer;
 import javafx.application.Platform;
 import javafx.beans.property.SimpleStringProperty;
+import javafx.concurrent.Task;
 import javafx.scene.control.TreeItem;
 import javafx.scene.control.TreeTableColumn;
 import javafx.scene.control.TreeTableView;
@@ -35,19 +36,23 @@ import javafx.scene.input.MouseEvent;
  *
  * @author darksnake
  */
-public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
+public class NumassLoaderTreeBuilder extends Task<Void> {
 
-    ProgressUpdateCallback callback;
+    private final TreeTableView<TreeItemValue> numassLoaderDataTree;
+    private final NumassStorage rootStorage;
+    private final Consumer<NumassData> numassViewBuilder;
 
-    public NumassLoaderTreeBuilder(ProgressUpdateCallback callback) {
+    public NumassLoaderTreeBuilder(TreeTableView<TreeItemValue> numassLoaderDataTree, NumassStorage rootStorage, Consumer<NumassData> numassViewBuilder) {
-        this.callback = callback;
+        this.numassLoaderDataTree = numassLoaderDataTree;
+        this.rootStorage = rootStorage;
+        this.numassViewBuilder = numassViewBuilder;
     }
     
-    public NumassLoaderTreeBuilder() {
-    }
     
     @SuppressWarnings("unchecked")
-    public void fillTree(TreeTableView<TreeItemValue> numassLoaderDataTree, NumassStorage rootStorage, Consumer<NumassData> numassViewBuilder) throws StorageException {
+    @Override
+    protected Void call() throws Exception {
+        updateTitle("Load numass data ("+rootStorage.getName()+")");
         TreeItem<TreeItemValue> root = buildNode(rootStorage, numassViewBuilder);
         root.setExpanded(true);
 
@@ -81,6 +86,7 @@ public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
             numassLoaderTimeColumn.setVisible(false);
             nummassLoaderDescriptionColumn.setVisible(false);
         });
+        return null;
     }
 
     private TreeItem<TreeItemValue> buildNode(NumassStorage storage, Consumer<NumassData> numassViewBuilder) throws StorageException {
@@ -99,12 +105,12 @@ public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
             }
         }
 
-        setProgressText("Building storage " + storage.getName());
+       updateMessage("Building storage " + storage.getName());
 
         double counter = 0;
         for (Loader loader : storage.loaders().values()) {
-            setProgressText("Building numass data loader " + loader.getName());
+            updateMessage("Building numass data loader " + loader.getName());
-            setProgress(counter / storage.loaders().size());
+            updateProgress(counter, storage.loaders().size());
 
             if (loader instanceof NumassData) {
                 NumassData numassLoader = (NumassData) loader;
@@ -126,8 +132,8 @@ public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
         //adding legacy data files
         counter = 0;
         for (NumassData legacyDat : storage.legacyFiles()) {
-            setProgressText("Loading numass DAT file " + legacyDat.getName());
+            updateMessage("Loading numass DAT file " + legacyDat.getName());
-            setProgress(counter / storage.loaders().size());
+            updateProgress(counter, storage.loaders().size());
             TreeItem<TreeItemValue> numassLoaderTreeItem = new TreeItem<>(buildValue(legacyDat));
             list.add(numassLoaderTreeItem);
             counter++;
@@ -197,7 +203,7 @@ public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
             @Override
             public String getTime() {
                 Instant startTime = loader.startTime();
-                if (startTime == null) {
+                if (startTime == null || startTime.equals(Instant.EPOCH)) {
                     return "";
                 } else {
                     return loader.startTime().toString();
@@ -211,20 +217,6 @@ public class NumassLoaderTreeBuilder implements ProgressUpdateCallback {
         };
     }
 
-    @Override
-    public void setProgress(double progress) {
-        if (callback != null) {
-            callback.setProgress(progress);
-        }
-    }
-
-    @Override
-    public void setProgressText(String text) {
-        if (callback != null) {
-            callback.setProgressText(text);
-        }
-    }
-
     public interface TreeItemValue {
 
         public String getName();

numass-viewer/src/main/java/inr/numass/viewer/NumassLoaderViewComponent.java

@@ -22,6 +22,7 @@ package inr.numass.viewer;
  */
 import hep.dataforge.data.DataPoint;
 import hep.dataforge.data.DataSet;
+import hep.dataforge.data.ListDataSet;
 import hep.dataforge.data.MapDataPoint;
 import hep.dataforge.io.ColumnedDataWriter;
 import hep.dataforge.meta.Meta;
@@ -41,11 +42,16 @@ import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.ResourceBundle;
+import java.util.concurrent.ExecutionException;
+import java.util.function.Predicate;
+import java.util.logging.Level;
 import java.util.stream.Collectors;
+import javafx.application.Platform;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.collections.FXCollections;
+import javafx.concurrent.Task;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.FXMLLoader;
@@ -63,6 +69,8 @@ import javafx.stage.FileChooser;
 import javafx.util.converter.NumberStringConverter;
 import org.controlsfx.control.CheckListView;
 import org.controlsfx.control.RangeSlider;
+import org.controlsfx.validation.ValidationSupport;
+import org.controlsfx.validation.Validator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -73,21 +81,7 @@ import org.slf4j.LoggerFactory;
  */
 public class NumassLoaderViewComponent extends AnchorPane implements Initializable {
 
-    public static NumassLoaderViewComponent build(NumassData numassLoader) {
+    private FXTaskManager callback;
-        NumassLoaderViewComponent component = new NumassLoaderViewComponent();
-        FXMLLoader loader = new FXMLLoader(component.getClass().getResource("/fxml/NumassLoaderView.fxml"));
-
-        loader.setRoot(component);
-        loader.setController(component);
-
-        try {
-            loader.load();
-        } catch (IOException ex) {
-            throw new RuntimeException(ex);
-        }
-        component.setData(numassLoader);
-        return component;
-    }
 
     Logger logger = LoggerFactory.getLogger(NumassLoaderViewComponent.class);
     private NumassData data;
@@ -120,15 +114,29 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
     private CheckBox detectorNormalizeSwitch;
     @FXML
     private Button detectorDataExportButton;
-
     @FXML
     private TextField lowChannelField;
-
     @FXML
     private TextField upChannelField;
-
     @FXML
     private RangeSlider channelSlider;
+    @FXML
+    private Button spectrumExportButton;
+    @FXML
+    private TextField dTimeField;
+
+    public NumassLoaderViewComponent() {
+        FXMLLoader loader = new FXMLLoader(getClass().getResource("/fxml/NumassLoaderView.fxml"));
+
+        loader.setRoot(this);
+        loader.setController(this);
+
+        try {
+            loader.load();
+        } catch (IOException ex) {
+            throw new RuntimeException(ex);
+        }
+    }
 
     /**
      * Initializes the controller class.
@@ -138,9 +146,8 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
      */
     @Override
     public void initialize(URL url, ResourceBundle rb) {
-        // TODO
+        detectorBinningSelector.setItems(FXCollections.observableArrayList(1, 2, 5, 10, 20, 50));
-        detectorBinningSelector.setItems(FXCollections.observableArrayList(1, 2, 5, 10, 20));
+        detectorBinningSelector.getSelectionModel().select(4);
-        detectorBinningSelector.getSelectionModel().selectLast();
         detectorNormalizeSwitch.setSelected(true);
 
         detectorPointListView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
@@ -148,36 +155,83 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
         lowChannelField.textProperty().bindBidirectional(channelSlider.lowValueProperty(), new NumberStringConverter());
         upChannelField.textProperty().bindBidirectional(channelSlider.highValueProperty(), new NumberStringConverter());
 
-        channelSlider.setLowValue(300);
+        channelSlider.setHighValue(1900d);
-        channelSlider.setHighValue(1900);
+        channelSlider.setLowValue(300d);
 
         ChangeListener<? super Number> rangeChangeListener = (ObservableValue<? extends Number> observable, Number oldValue, Number newValue) -> {
-            updateSpectrumPane();
+            updateSpectrumPane(points);
         };
 
+        dTimeField.textProperty().addListener((ObservableValue<? extends String> observable, String oldValue, String newValue) -> {
+            updateSpectrumPane(points);
+        });
+
         channelSlider.lowValueProperty().addListener(rangeChangeListener);
         channelSlider.highValueProperty().addListener(rangeChangeListener);
+
+        ValidationSupport validationSupport = new ValidationSupport();
+        Predicate<String> isNumber = (String t) -> {
+            try {
+                Double.parseDouble(t);
+                return true;
+            } catch (NumberFormatException | NullPointerException ex) {
+                return false;
+            }
+        };
+
+        validationSupport.registerValidator(dTimeField, Validator.createPredicateValidator(isNumber, "Must be number"));
     }
 
     public NumassData getData() {
         return data;
     }
 
-    public void setData(NumassData data) {
+    public void setCallback(FXTaskManager callback) {
+        this.callback = callback;
+    }
+
+    public void loadData(NumassData data) {
         this.data = data;
         if (data != null) {
-            points = data.getNMPoints();
+            LoadPointsTask task = new LoadPointsTask(data);
-            //setup detector data
+            if (callback != null) {
-            setupDetectorPane(points);
+                callback.postTask(task);
-            //setup spectrum plot
+            }
-            updateSpectrumPane();
+            Viewer.runTask(task);
-
+            try {
-            setupInfo(data);
+                this.points = task.get();
-
+            } catch (InterruptedException |ExecutionException ex) {
-            detectorTab.getTabPane().getSelectionModel().select(detectorTab);
+                logger.error("Can't load spectrum data points", ex);
+            }
         } else {
             logger.error("The data model is null");
         }
+        detectorTab.getTabPane().getSelectionModel().select(detectorTab);
+    }
+
+    private class LoadPointsTask extends Task<List<NMPoint>> {
+
+        private final NumassData loader;
+
+        public LoadPointsTask(NumassData loader) {
+            this.loader = loader;
+        }
+
+        @Override
+        protected List<NMPoint> call() throws Exception {
+            updateTitle("Load numass data (" + loader.getName() + ")");
+            List<NMPoint> points = loader.getNMPoints();
+            Platform.runLater(() -> {
+                //setup detector data
+                setupDetectorPane(points);
+                //setup spectrum plot
+                updateSpectrumPane(points);
+
+                setupInfo(data);
+            });
+            return points;
+        }
+
     }
 
     /**
@@ -192,11 +246,11 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
         detectorBinningSelector.getSelectionModel().selectedItemProperty()
                 .addListener((ObservableValue<? extends Integer> observable, Integer oldValue, Integer newValue) -> {
                     boolean norm = detectorNormalizeSwitch.isSelected();
-                    updateDetectorPane(fillDetectorData(points, newValue, norm));
+                    updateDetectorPane(fillDetectorData(NumassLoaderViewComponent.this.points, newValue, norm));
                 });
         detectorNormalizeSwitch.selectedProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
             int bin = detectorBinningSelector.getValue();
-            updateDetectorPane(fillDetectorData(points, bin, newValue));
+            updateDetectorPane(fillDetectorData(NumassLoaderViewComponent.this.points, bin, newValue));
         });
         detectorDataExportButton.setDisable(false);
     }
@@ -204,10 +258,10 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
     private void setupInfo(NumassData loader) {
         Meta info = loader.getInfo();
         infoTextBox.setText(new JSONMetaWriter().writeString(info, null).
-                replace("\\r", "\r").replace("\\n", "\n"));
+                replace("\\r", "\r\t").replace("\\n", "\n\t"));
     }
 
-    private void updateSpectrumPane() {
+    private void updateSpectrumPane(List<NMPoint> points) {
         if (spectrumPlotFrame == null) {
             Meta plotMeta = new MetaBuilder("plot")
                     .setValue("xAxis.axisTitle", "U")
@@ -230,39 +284,31 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
             spectrumData.clear();
         } else {
             spectrumData.fillData(points.stream()
-                    .<DataPoint>map((NMPoint point) -> getSpectrumPoint(point, lowChannel, highChannel))
+                    .<DataPoint>map((NMPoint point) -> getSpectrumPoint(point, lowChannel, highChannel, getDTime()))
                     .collect(Collectors.toList()));
         }
     }
 
-    private DataPoint getSpectrumPoint(NMPoint point, int lowChannel, int highChannel) {
+    private double getDTime() {
-        double u = point.getUread();
+        try {
-        double count = point.getCountInWindow(lowChannel, highChannel);
+            return Double.parseDouble(dTimeField.getText()) * 1e-6;
-        double time = point.getLength();
+        } catch (NumberFormatException ex) {
-        double err = Math.sqrt(count);
+            return 0;
-        return new MapDataPoint(new String[]{"x", "y", "yErr"}, u, count / time, err / time);
+        }
+    }
+
+    private DataPoint getSpectrumPoint(NMPoint point, int lowChannel, int upChannel, double dTime) {
+        double u = point.getUread();
+        return new MapDataPoint(new String[]{"x", "y", "yErr"}, u,
+                point.getCountRate(lowChannel, upChannel, dTime),
+                point.getCountRateErr(lowChannel, upChannel, dTime));
     }
 
-//    private void setupSpectrumPane(List<NMPoint> points, int lowChannel, int upChannel) {
-//        updateSpectrumData(fillSpectrumData(points, (point) -> point.getCountInWindow(lowChannel, upChannel)));
-//    }
-//
-//    private void updateSpectrumData(XYIntervalSeriesCollection data) {
-//        spectrumPlotPane.getChildren().clear();
-//        NumberAxis xAxis = new NumberAxis("HV");
-//        NumberAxis yAxis = new NumberAxis("count rate");
-//
-//        xAxis.setAutoRangeIncludesZero(false);
-//        yAxis.setAutoRangeIncludesZero(false);
-//
-//        XYPlot plot = new XYPlot(data, xAxis, yAxis, new XYErrorRenderer());
-//        JFreeChart spectrumPlot = new JFreeChart("spectrum", plot);
-//        displayPlot(spectrumPlotPane, spectrumPlot);
-//    }
     /**
      * update detector pane with new data
      */
     private void updateDetectorPane(List<XYPlottable> detectorData) {
+        Platform.runLater(() -> {
             if (detectorData == null) {
                 throw new IllegalArgumentException("Detector data not defined");
             }
@@ -297,6 +343,7 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
                     detectorPlotFrame.get(plotName).getConfig().setValue("visible", newValue);
                 });
             }
+        });
     }
 
     private List<XYPlottable> fillDetectorData(List<NMPoint> points, int binning, boolean normalize) {
@@ -317,27 +364,6 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
         return plottables;
     }
 
-//    /**
-//     * Fill spectrum with custom window calculator
-//     *
-//     * @param points
-//     * @param lowerBoundCalculator
-//     * @param upperBoundCalculator
-//     * @return
-//     */
-//    private XYIntervalSeriesCollection fillSpectrumData(List<NMPoint> points, Function<NMPoint, Number> calculator) {
-//        XYIntervalSeriesCollection collection = new XYIntervalSeriesCollection();
-//        XYIntervalSeries ser = new XYIntervalSeries("spectrum");
-//        for (NMPoint point : points) {
-//            double u = point.getUread();
-//            double count = calculator.apply(point).doubleValue();
-//            double time = point.getLength();
-//            double err = Math.sqrt(count);
-//            ser.add(u, u, u, count / time, (count - err) / time, (count + err) / time);
-//        }
-//        collection.addSeries(ser);
-//        return collection;
-//    }
     @FXML
     private void checkAllAction(ActionEvent event) {
         detectorPointListView.getCheckModel().checkAll();
@@ -362,6 +388,49 @@ public class NumassLoaderViewComponent extends AnchorPane implements Initializab
         }
     }
 
+    @FXML
+    private void onSpectrumExportClick(ActionEvent event) {
+        if (points != null && !points.isEmpty()) {
+            FileChooser fileChooser = new FileChooser();
+            fileChooser.setTitle("Choose text export destination");
+            fileChooser.setInitialFileName(data.getName() + "_spectrum.out");
+            File destination = fileChooser.showSaveDialog(spectrumPlotPane.getScene().getWindow());
+            if (destination != null) {
+                String[] names = new String[]{"Uset", "Uread", "Length", "Total", "Window", "CR", "CRerr", "Timestamp"};
+                int loChannel = (int) channelSlider.getLowValue();
+                int upChannel = (int) channelSlider.getHighValue();
+                double dTime = getDTime();
+                ListDataSet spectrumDataSet = new ListDataSet(names);
+
+                for (NMPoint point : points) {
+                    spectrumDataSet.add(new MapDataPoint(names, new Object[]{
+                        point.getUset(),
+                        point.getUread(),
+                        point.getLength(),
+                        point.getEventsCount(),
+                        point.getCountInWindow(loChannel, upChannel),
+                        point.getCountRate(loChannel, upChannel, dTime),
+                        point.getCountRateErr(loChannel, upChannel, dTime),
+                        point.getStartTime()
+                    }
+                    ));
+                }
+
+                try {
+                    String comment = String.format("Numass data viewer spectrum data export for %s%n"
+                            + "Window: (%d, %d)%n"
+                            + "Dead time per event: %g%n",
+                            data.getName(), loChannel, upChannel, dTime);
+
+                    ColumnedDataWriter
+                            .writeDataSet(destination, spectrumDataSet, comment, false);
+                } catch (IOException ex) {
+                    LoggerFactory.getLogger(getClass()).error("Destination file not found", ex);
+                }
+            }
+        }
+    }
+
     private void onExportButtonClick(ActionEvent event) {
         FileChooser fileChooser = new FileChooser();
         fileChooser.setTitle("Choose text export destination");

numass-viewer/src/main/java/inr/numass/viewer/TestDirectoryViewer.java

@@ -36,7 +36,8 @@ public class TestDirectoryViewer extends Application {
         NumassDataLoader reader = NumassDataLoader.fromLocalDir(null, new File("C:\\Users\\darksnake\\Dropbox\\PlayGround\\data-test\\20150703143643_1\\"));
 //        NumassLoader reader = NumassLoader.fromZip(null, new File("C:\\Users\\darksnake\\Dropbox\\PlayGround\\data-test\\20150703143643_1.zip"));
 
-        NumassLoaderViewComponent comp = NumassLoaderViewComponent.build(reader);
+        NumassLoaderViewComponent comp = new NumassLoaderViewComponent();
+        comp.loadData(reader);
 //        FXMLLoader fxml = new FXMLLoader(getClass().getResource("/fxml/DirectoryViewer.fxml"));
 //
 //        Parent parent = fxml.load();

numass-viewer/src/main/java/inr/numass/viewer/Viewer.java

@@ -19,6 +19,7 @@ import hep.dataforge.exceptions.StorageException;
 import hep.dataforge.storage.commons.StoragePlugin;
 import java.io.IOException;
 import javafx.application.Application;
+import javafx.concurrent.Task;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Parent;
 import javafx.scene.Scene;
@@ -34,7 +35,6 @@ public class Viewer extends Application {
     public void start(Stage primaryStage) throws StorageException, IOException {
         new StoragePlugin().startGlobal();
 
-
         FXMLLoader fxml = new FXMLLoader(getClass().getResource("/fxml/MainView.fxml"));
 
         Parent parent = fxml.load();
@@ -52,7 +52,11 @@ public class Viewer extends Application {
         System.exit(0);
     }
 
-    
+    public static void runTask(Task task) {
+        Thread th = new Thread(task);
+        th.setDaemon(true);
+        th.start();
+    }
 
     /**
      * @param args the command line arguments

numass-viewer/src/main/resources/fxml/NumassLoaderView.fxml

@@ -16,6 +16,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 -->
 
+<?import org.controlsfx.control.textfield.*?>
 <?import org.controlsfx.control.*?>
 <?import javafx.geometry.*?>
 <?import java.lang.*?>
@@ -24,9 +25,9 @@ limitations under the License.
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
-<fx:root id="AnchorPane" prefHeight="400.0" prefWidth="600.0" type="AnchorPane" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1">
+<fx:root id="AnchorPane" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" type="AnchorPane" xmlns="http://javafx.com/javafx/8.0.40" xmlns:fx="http://javafx.com/fxml/1">
    <children>
-      <TabPane layoutX="200.0" layoutY="100.0" prefHeight="200.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
+      <TabPane layoutX="200.0" layoutY="100.0" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" tabClosingPolicy="UNAVAILABLE" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
         <tabs>
             <Tab text="Info">
               <content>
@@ -41,15 +42,10 @@ limitations under the License.
             <content>
               <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
                      <children>
-                        <BorderPane layoutX="200.0" layoutY="86.0" prefHeight="200.0" prefWidth="200.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
+                        <SplitPane dividerPositions="0.5" prefHeight="200.0" prefWidth="200.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
-                           <center>
+                           <items>
-                              <AnchorPane fx:id="detectorPlotPane" prefHeight="200.0" prefWidth="200.0" BorderPane.alignment="CENTER" />
+                              <AnchorPane fx:id="detectorPlotPane" minHeight="300.0" minWidth="300.0" prefHeight="200.0" prefWidth="200.0" />
-                           </center>
+                              <VBox fx:id="detectorOptionsPane" maxWidth="250.0" prefWidth="200.0" spacing="2.0" style="-fx-border-color: blue;">
-                           <right>
-                              <VBox fx:id="detectorOptionsPane" minWidth="-Infinity" prefWidth="200.0" spacing="2.0" style="-fx-border-color: blue;" BorderPane.alignment="CENTER">
-                                 <BorderPane.margin>
-                                    <Insets />
-                                 </BorderPane.margin>
                                  <children>
                                     <Label text="Channels per bin">
                                        <VBox.margin>
@@ -78,8 +74,8 @@ limitations under the License.
                                  <padding>
                                     <Insets bottom="2.0" left="2.0" right="2.0" top="2.0" />
                                  </padding></VBox>
-                           </right>
+                           </items>
-                        </BorderPane>
+                        </SplitPane>
                      </children>
                   </AnchorPane>
             </content>
@@ -91,7 +87,7 @@ limitations under the License.
           </Tab>
             <Tab fx:id="spectrumTab" text="Spectrum">
               <content>
-                <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
+                <AnchorPane minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0">
                      <children>
                         <BorderPane prefHeight="200.0" prefWidth="200.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                            <center>
@@ -100,9 +96,32 @@ limitations under the License.
                            <top>
                               <ToolBar prefHeight="40.0" prefWidth="200.0" BorderPane.alignment="CENTER">
                                  <items>
+                                    <VBox>
+                                       <children>
+                                          <Label text="Lo channel" />
                                           <TextField fx:id="lowChannelField" prefWidth="60.0" />
-                                    <RangeSlider fx:id="channelSlider" accessibleRole="SLIDER" highValue="1900.0" lowValue="300.0" majorTickUnit="500.0" max="4000.0" minorTickCount="5" prefHeight="38.0" prefWidth="336.0" showTickLabels="true" showTickMarks="true" />
+                                       </children>
+                                    </VBox>
+                                    <RangeSlider fx:id="channelSlider" accessibleRole="SLIDER" highValue="1900.0" lowValue="300.0" majorTickUnit="500.0" max="4000.0" minorTickCount="5" prefHeight="38.0" prefWidth="276.0" showTickLabels="true" showTickMarks="true">
+                                       <padding>
+                                          <Insets left="10.0" right="10.0" />
+                                       </padding></RangeSlider>
+                                    <VBox>
+                                       <children>
+                                          <Label text="Up channel" />
                                           <TextField fx:id="upChannelField" prefWidth="60.0" />
+                                       </children>
+                                    </VBox>
+                                    <Separator orientation="VERTICAL" />
+                                    <VBox>
+                                       <children>
+                                          <Label text="Dead time (us)" />
+                                          <TextField fx:id="dTimeField" prefHeight="25.0" prefWidth="0.0" text="7.2" />
+                                       </children>
+                                    </VBox>
+                                    <Separator orientation="VERTICAL" />
+                                    <Pane minWidth="0.0" HBox.hgrow="ALWAYS" />
+                                    <Button fx:id="spectrumExportButton" mnemonicParsing="false" onAction="#onSpectrumExportClick" text="Export" />
                                  </items>
                               </ToolBar>
                            </top>