Analyzers for Tristan

2018-03-19 16:57:07 +03:00 · 2018-03-19 16:57:07 +03:00 · ae97c0be68
commit ae97c0be68
parent cf3268244e
43 changed files with 932 additions and 1041 deletions
--- a/numass-control/cryotemp/build.gradle
+++ b/numass-control/cryotemp/build.gradle
@ -12,7 +12,6 @@ version = "0.2.0";

 dependencies {
    compile project(':numass-control')
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
 }

 task testDevice(dependsOn: classes, type: JavaExec) {
@ -22,28 +21,7 @@ task testDevice(dependsOn: classes, type: JavaExec) {
    description "Start application in debug mode with default virtual port"
    group "test"
 }
-buildscript {
-    ext.kotlin_version = '1.1.60'
-    repositories {
-        mavenCentral()
-    }
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-}
-repositories {
-    mavenCentral()
-}
-compileKotlin {
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-}
-compileTestKotlin {
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
-}
+

 //task testRun(dependsOn: classes, type: JavaExec) {
 //    main mainClass
--- a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Channel.kt
+++ b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Channel.kt
@ -33,13 +33,9 @@ internal fun createChannel(meta: Meta): PKT8Channel {
        when (transformationType) {
            "default", "hyperbolic" -> {
                val coefs = meta.getValue("coefs").listValue()
-                val r0 = meta.getDouble("r0", 1000.0)!!
+                val r0 = meta.getDouble("r0", 1000.0)
                return PKT8Channel(meta) { r ->
-                    if (coefs == null) {
-                        -1.0
-                    } else {
-                        coefs.indices.sumByDouble { coefs[it].doubleValue() * Math.pow(r0 / r, it.toDouble()) }
-                    }
+                    coefs?.indices?.sumByDouble { coefs[it].doubleValue() * Math.pow(r0 / r, it.toDouble()) } ?: -1.0
                }
            }
            else -> throw RuntimeException("Unknown transformation type")
@ -50,13 +46,6 @@ internal fun createChannel(meta: Meta): PKT8Channel {
    }
 }

-data class PKT8Result(val channel: String, val rawValue: Double, val temperature: Double) {
-
-    val rawString: String = String.format("%.2f", rawValue)
-
-    val temperatureString: String = String.format("%.2f", temperature)
-}
-
 /**
 * Created by darksnake on 28-Sep-16.
 */
--- a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Device.kt
+++ b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Device.kt
@ -39,6 +39,7 @@ import hep.dataforge.utils.DateTimeUtils
 import inr.numass.control.DeviceView
 import inr.numass.control.StorageHelper
 import java.time.Duration
+import java.time.Instant
 import java.util.*


@ -52,7 +53,7 @@ import java.util.*
        RoleDef(name = Roles.VIEW_ROLE)
 )
@ValueDef(name = "port", def = "virtual", info = "The name of the port for this PKT8")
-@StateDef(ValueDef(name = "storing"))
+@StateDef(value = ValueDef(name = "storing", info = "Define if this device is currently writes to storage"), writable = true)
@DeviceView(PKT8Display::class)
 class PKT8Device(context: Context, meta: Meta) : PortSensor(context, meta) {
    /**
@ -103,9 +104,9 @@ class PKT8Device(context: Context, meta: Meta) : PortSensor(context, meta) {

        //read channel configuration
        if (meta.hasMeta("channel")) {
-            for (node in getMeta().getMetaList("channel")) {
+            for (node in meta.getMetaList("channel")) {
                val designation = node.getString("designation", "default")
-                this.channels.put(designation, createChannel(node))
+                this.channels[designation] = createChannel(node)
            }
        } else {
            //set default channel configuration
@ -229,13 +230,18 @@ class PKT8Device(context: Context, meta: Meta) : PortSensor(context, meta) {
    }

    private fun notifyChannelResult(designation: String, rawValue: Double) {
+        updateLogicalState("raw.$designation", rawValue)

        val channel = channels[designation]

-        if (channel != null) {
-            collector.put(channel.name, channel.getTemperature(rawValue))
-        } else {
-            result(PKT8Result(designation, rawValue, -1.0))
+        val temperature = channel?.let {
+            val temp = it.getTemperature(rawValue)
+            updateLogicalState("temp.$designation", temp)
+            collector.put(it.name, temp)
+            temp
+        }
+        forEachConnection(PKT8ValueListener::class.java) {
+            it.report(PKT8Reading(channel?.name ?: designation, rawValue, temperature))
        }
    }

@ -313,5 +319,15 @@ class PKT8Device(context: Context, meta: Meta) : PortSensor(context, meta) {
        const val ABUF = "abuf"
        private val CHANNEL_DESIGNATIONS = arrayOf("a", "b", "c", "d", "e", "f", "g", "h")
    }
-
+}
+
+data class PKT8Reading(val channel: String, val rawValue: Double, val temperature: Double?) {
+
+    val rawString: String = String.format("%.2f", rawValue)
+
+    val temperatureString: String = String.format("%.2f", temperature)
+}
+
+interface PKT8ValueListener {
+    fun report(reading: PKT8Reading, time: Instant = Instant.now())
 }
--- a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Display.kt
+++ b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8Display.kt
@ -1,8 +1,6 @@
 package inr.numass.control.cryotemp

 import hep.dataforge.control.devices.Sensor
-import hep.dataforge.control.measurements.Measurement
-import hep.dataforge.control.measurements.MeasurementListener
 import hep.dataforge.description.Descriptors
 import hep.dataforge.fx.bindWindow
 import hep.dataforge.fx.dfIconView
@ -15,7 +13,6 @@ import hep.dataforge.plots.PlotUtils
 import hep.dataforge.plots.data.TimePlot
 import hep.dataforge.plots.jfreechart.JFreeChartFrame
 import inr.numass.control.DeviceDisplay
-import javafx.application.Platform
 import javafx.beans.binding.ListBinding
 import javafx.beans.property.SimpleObjectProperty
 import javafx.collections.FXCollections
@ -33,11 +30,11 @@ import java.time.Instant
 /**
 * Created by darksnake on 30-May-17.
 */
-class PKT8Display : DeviceDisplay<PKT8Device>(), MeasurementListener {
+class PKT8Display : DeviceDisplay<PKT8Device>(), PKT8ValueListener {

    override fun buildView(device: PKT8Device) = CryoView()

-    internal val table = FXCollections.observableHashMap<String, PKT8Result>()
+    internal val table = FXCollections.observableHashMap<String, PKT8Reading>()
    val lastUpdateProperty = SimpleObjectProperty<String>("NEVER")


@ -47,16 +44,24 @@ class PKT8Display : DeviceDisplay<PKT8Device>(), MeasurementListener {
        }
    }

-    override fun onMeasurementFailed(measurement: Measurement<*>, exception: Throwable) {
+//    override fun onMeasurementFailed(measurement: Measurement<*>, exception: Throwable) {
+//
+//    }
+//
+//    override fun onMeasurementResult(measurement: Measurement<*>, result: Any, time: Instant) {
+//        if (result is PKT8Result) {
+//            Platform.runLater {
+//                lastUpdateProperty.set(time.toString())
+//                table[result.channel] = result;
+//            }
+//        }
+//    }
+//

-    }
-
-    override fun onMeasurementResult(measurement: Measurement<*>, result: Any, time: Instant) {
-        if (result is PKT8Result) {
-            Platform.runLater {
-                lastUpdateProperty.set(time.toString())
-                table.put(result.channel, result);
-            }
+    override fun report(reading: PKT8Reading, time: Instant) {
+        runLater {
+            lastUpdateProperty.set(time.toString())
+            table[reading.channel] = reading;
        }
    }

@ -104,24 +109,24 @@ class PKT8Display : DeviceDisplay<PKT8Device>(), MeasurementListener {
                }
            }
            center {
-                tableview<PKT8Result> {
-                    items = object : ListBinding<PKT8Result>() {
+                tableview<PKT8Reading> {
+                    items = object : ListBinding<PKT8Reading>() {
                        init {
                            bind(table)
                        }

-                        override fun computeValue(): ObservableList<PKT8Result> {
+                        override fun computeValue(): ObservableList<PKT8Reading> {
                            return FXCollections.observableArrayList(table.values).apply {
                                sortBy { it.channel }
                            }
                        }

                    }
-                    column("Sensor", PKT8Result::channel);
-                    column("Resistance", PKT8Result::rawValue).cellFormat {
+                    column("Sensor", PKT8Reading::channel);
+                    column("Resistance", PKT8Reading::rawValue).cellFormat {
                        text = String.format("%.2f", it)
                    }
-                    column("Temperature", PKT8Result::temperature).cellFormat {
+                    column("Temperature", PKT8Reading::temperature).cellFormat {
                        text = String.format("%.2f", it)
                    }
                }
--- a/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8VirtualPort.kt
+++ b/numass-control/cryotemp/src/main/kotlin/inr/numass/control/cryotemp/PKT8VirtualPort.kt
@ -18,26 +18,29 @@ import java.util.function.Supplier
 /**
 * @author Alexander Nozik
 */
-class PKT8VirtualPort(portName: String, meta: Meta) : VirtualPort(meta), Metoid {
+class PKT8VirtualPort(private val portName: String, meta: Meta) : VirtualPort(meta), Metoid {

    private val generator = Random()

-    init {
-        super.configureValue("id", portName)
-    }
+//    init {
+//        super.configureValue("id", portName)
+//    }
+
+    override fun getName(): String  = portName
+

    @Synchronized override fun evaluateRequest(request: String) {
        when (request) {
            "s" -> {
                val letters = arrayOf("a", "b", "c", "d", "e", "f", "g", "h")
                for (letter in letters) {
-                    val channelMeta = MetaUtils.findNodeByValue(getMeta(), "channel", "letter", Value.of(letter)).orElse(Meta.empty())
+                    val channelMeta = MetaUtils.findNodeByValue(meta, "channel", "letter", Value.of(letter)).orElse(Meta.empty())

                    val average: Double
                    val sigma: Double
                    if (channelMeta != null) {
-                        average = channelMeta.getDouble("av", 1200.0)!!
-                        sigma = channelMeta.getDouble("sigma", 50.0)!!
+                        average = channelMeta.getDouble("av", 1200.0)
+                        sigma = channelMeta.getDouble("sigma", 50.0)
                    } else {
                        average = 1200.0
                        sigma = 50.0
@ -56,7 +59,7 @@ class PKT8VirtualPort(portName: String, meta: Meta) : VirtualPort(meta), Metoid
            }
            "p" -> {
                cancelByTag("measurement")
-                this.receivePhrase("Stopped")
+                planResponse("Stopped", Duration.ofMillis(50))
            }
        }
    }
--- a/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDevice.kt
+++ b/numass-control/msp/src/main/kotlin/inr/numass/control/msp/MspDevice.kt
@ -61,7 +61,7 @@ import java.util.function.Consumer
        StateDef(ValueDef(name = "filamentStatus", info = "Filament status"))
 )
@DeviceView(MspDisplay::class)
-class MspDevice(context: Context, meta: Meta) : PortSensor<Values>(context, meta) {
+class MspDevice(context: Context, meta: Meta) : PortSensor(context, meta) {

    private var measurementDelegate: Consumer<MspResponse>? = null

--- a/numass-control/src/main/kotlin/inr/numass/control/NumassControlApplication.kt
+++ b/numass-control/src/main/kotlin/inr/numass/control/NumassControlApplication.kt
@ -5,13 +5,13 @@ import hep.dataforge.control.connections.Roles
 import hep.dataforge.control.devices.Device
 import hep.dataforge.control.devices.DeviceFactory
 import hep.dataforge.exceptions.ControlException
+import hep.dataforge.kodex.optional
 import hep.dataforge.meta.Meta
 import javafx.scene.Scene
 import javafx.stage.Stage
 import org.slf4j.LoggerFactory
 import tornadofx.*
 import java.util.*
-import java.util.function.Predicate

 /**
 * Created by darksnake on 14-May-17.
@ -25,6 +25,7 @@ abstract class NumassControlApplication<in D : Device> : App() {
        rootLogger.level = Level.INFO

        device = setupDevice()
+
        val controller = device.getDisplay()
        device.connect(controller, Roles.VIEW_ROLE, Roles.DEVICE_LISTENER_ROLE)
        val scene = Scene(controller.view?.root ?: controller.getBoardView())
@ -47,12 +48,11 @@ abstract class NumassControlApplication<in D : Device> : App() {
    protected abstract fun acceptDevice(meta: Meta): Boolean

    private fun setupDevice(): D {
-        val config = getConfig(this)
-                .orElseGet { readResourceMeta("/config/devices.xml") }
+        val config = getConfig(this).optional.orElseGet { readResourceMeta("/config/devices.xml") }

        val ctx = setupContext(config)
-        val deviceConfig = findDeviceMeta(config, Predicate<Meta> { this.acceptDevice(it) })
-                .orElseThrow { RuntimeException("Device configuration not found") }
+        val deviceConfig = findDeviceMeta(config) { this.acceptDevice(it) }
+                ?: throw RuntimeException("Device configuration not found")


        try {
--- a/numass-control/src/main/kotlin/inr/numass/control/NumassControlUtils.kt
+++ b/numass-control/src/main/kotlin/inr/numass/control/NumassControlUtils.kt
@ -8,6 +8,7 @@ import hep.dataforge.exceptions.StorageException
 import hep.dataforge.fx.dfIcon
 import hep.dataforge.io.MetaFileReader
 import hep.dataforge.io.XMLMetaReader
+import hep.dataforge.kodex.nullable
 import hep.dataforge.meta.Meta
 import hep.dataforge.storage.commons.StorageConnection
 import hep.dataforge.storage.commons.StorageManager
@ -19,8 +20,6 @@ import java.io.IOException
 import java.nio.file.Files
 import java.nio.file.Paths
 import java.text.ParseException
-import java.util.*
-import java.util.function.Predicate

 /**
 * Created by darksnake on 08-May-17.
@ -70,10 +69,10 @@ fun readResourceMeta(path: String): Meta {

 }

-fun getConfig(app: Application): Optional<Meta> {
+fun getConfig(app: Application): Meta? {
    val debugConfig = app.parameters.named["config.resource"]
    if (debugConfig != null) {
-        return Optional.ofNullable(readResourceMeta(debugConfig))
+        return readResourceMeta(debugConfig)
    }

    var configFileName: String? = app.parameters.named["config"]
@ -84,25 +83,17 @@ fun getConfig(app: Application): Optional<Meta> {
    }
    val configFile = Paths.get(configFileName)

-    if (Files.exists(configFile)) {
-        try {
-            val config = MetaFileReader.read(configFile)
-            return Optional.of(config)
-        } catch (e: IOException) {
-            throw RuntimeException(e)
-        } catch (e: ParseException) {
-            throw RuntimeException(e)
-        }
-
+    return if (Files.exists(configFile)) {
+        MetaFileReader.read(configFile)
    } else {
        logger.warn("Configuration file not found")
-        return Optional.empty<Meta>()
+        null
    }
 }


-fun findDeviceMeta(config: Meta, criterion: Predicate<Meta>): Optional<Meta> {
-    return config.getMetaList("device").stream().filter(criterion).findFirst().map { it -> it }
+fun findDeviceMeta(config: Meta, criterion: (Meta) -> Boolean): Meta? {
+    return config.getMetaList("device").stream().filter(criterion).findFirst().nullable
 }

 fun setupContext(meta: Meta): Context {
--- a/numass-core/src/main/java/inr/numass/data/SpectrumAdapter.java
+++ b/numass-core/src/main/java/inr/numass/data/SpectrumAdapter.java
@ -1,112 +0,0 @@
-/* 
- * Copyright 2015 Alexander Nozik.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package inr.numass.data;
-
-import hep.dataforge.meta.Meta;
-import hep.dataforge.meta.MetaBuilder;
-import hep.dataforge.tables.BasicAdapter;
-import hep.dataforge.tables.ValueMap;
-import hep.dataforge.tables.ValuesAdapter;
-import hep.dataforge.values.Value;
-import hep.dataforge.values.Values;
-
-import java.util.Optional;
-import java.util.stream.Stream;
-
-import static hep.dataforge.tables.Adapters.*;
-
-/**
- * @author Darksnake
- */
-public class SpectrumAdapter extends BasicAdapter {
-
-    private static final String POINT_LENGTH_NAME = "time";
-
-    public SpectrumAdapter(Meta meta) {
-        super(meta);
-    }
-
-    public SpectrumAdapter(String xName, String yName, String yErrName, String measurementTime) {
-        super(new MetaBuilder(ValuesAdapter.ADAPTER_KEY)
-                .setValue(X_VALUE_KEY, xName)
-                .setValue(Y_VALUE_KEY, yName)
-                .setValue(Y_ERROR_KEY, yErrName)
-                .setValue(POINT_LENGTH_NAME, measurementTime)
-                .build()
-        );
-    }
-
-    public SpectrumAdapter(String xName, String yName, String measurementTime) {
-        super(new MetaBuilder(ValuesAdapter.ADAPTER_KEY)
-                .setValue(X_VALUE_KEY, xName)
-                .setValue(Y_VALUE_KEY, yName)
-                .setValue(POINT_LENGTH_NAME, measurementTime)
-                .build()
-        );
-    }
-
-    public double getTime(Values point) {
-        return this.optComponent(point, POINT_LENGTH_NAME).map(Value::doubleValue).orElse(1d);
-    }
-
-    public Values buildSpectrumDataPoint(double x, long count, double t) {
-        return ValueMap.of(new String[]{getComponentName(X_VALUE_KEY), getComponentName(Y_VALUE_KEY),
-                        getComponentName(POINT_LENGTH_NAME)},
-                x, count, t);
-    }
-
-    public Values buildSpectrumDataPoint(double x, long count, double countErr, double t) {
-        return ValueMap.of(new String[]{getComponentName(X_VALUE_KEY), getComponentName(Y_VALUE_KEY),
-                        getComponentName(Y_ERROR_KEY), getComponentName(POINT_LENGTH_NAME)},
-                x, count, countErr, t);
-    }
-
-
-    @Override
-    public Optional<Value> optComponent(Values values, String component) {
-        switch (component) {
-            case "count":
-                return super.optComponent(values, Y_VALUE_KEY);
-            case Y_VALUE_KEY:
-                return super.optComponent(values, Y_VALUE_KEY)
-                        .map(it -> it.doubleValue() / getTime(values))
-                        .map(Value::of);
-            case Y_ERROR_KEY:
-                Optional<Value> err = super.optComponent(values, Y_ERROR_KEY);
-                if (err.isPresent()) {
-                    return Optional.of(Value.of(err.get().doubleValue() / getTime(values)));
-                } else {
-                    double y = getComponent(values, Y_VALUE_KEY).doubleValue();
-                    if (y < 0) {
-                        return Optional.empty();
-                    } else if (y == 0) {
-                        //avoid infinite weights
-                        return Optional.of(Value.of(1d / getTime(values)));
-                    } else {
-                        return Optional.of(Value.of(Math.sqrt(y) / getTime(values)));
-                    }
-                }
-
-            default:
-                return super.optComponent(values, component);
-        }
-    }
-
-    @Override
-    public Stream<String> listComponents() {
-        return Stream.concat(super.listComponents(), Stream.of(X_VALUE_KEY, Y_VALUE_KEY, POINT_LENGTH_NAME)).distinct();
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/MetaBlock.java
+++ b/numass-core/src/main/java/inr/numass/data/api/MetaBlock.java
@ -1,46 +0,0 @@
-package inr.numass.data.api;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.util.*;
-import java.util.stream.Stream;
-
-/**
- * A block constructed from a set of other blocks. Internal blocks are not necessary subsequent. Blocks are automatically sorted.
- * Created by darksnake on 16.07.2017.
- */
-public class MetaBlock implements NumassBlock {
-    private SortedSet<NumassBlock> blocks = new TreeSet<>(Comparator.comparing(NumassBlock::getStartTime));
-
-    public MetaBlock(NumassBlock... blocks) {
-        this.blocks.addAll(Arrays.asList(blocks));
-    }
-
-    public MetaBlock(Collection<NumassBlock> blocks) {
-        this.blocks.addAll(blocks);
-    }
-
-    @Override
-    public Instant getStartTime() {
-        return blocks.first().getStartTime();
-    }
-
-    @Override
-    public Duration getLength() {
-        return Duration.ofNanos(blocks.stream().mapToLong(block -> block.getLength().toNanos()).sum());
-    }
-
-    @Override
-    public Stream<NumassEvent> getEvents() {
-        return blocks.stream()
-                .sorted(Comparator.comparing(NumassBlock::getStartTime))
-                .flatMap(NumassBlock::getEvents);
-    }
-
-    @Override
-    public Stream<NumassFrame> getFrames() {
-        return blocks.stream()
-                .sorted(Comparator.comparing(NumassBlock::getStartTime))
-                .flatMap(NumassBlock::getFrames);
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/NumassBlock.java
+++ b/numass-core/src/main/java/inr/numass/data/api/NumassBlock.java
@ -1,36 +0,0 @@
-package inr.numass.data.api;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.util.stream.Stream;
-
-/**
- * A single continuous measurement block. The block can contain both isolated events and signal frames
- * <p>
- * Created by darksnake on 06-Jul-17.
- */
-public interface NumassBlock {
-    /**
-     * The absolute start time of the block
-     * @return
-     */
-    Instant getStartTime();
-
-    /**
-     * The length of the block
-     * @return
-     */
-    Duration getLength();
-
-    /**
-     * Stream of isolated events. Could be empty
-     * @return
-     */
-    Stream<NumassEvent> getEvents();
-
-    /**
-     * Stream of frames. Could be empty
-     * @return
-     */
-    Stream<NumassFrame> getFrames();
-}
--- a/numass-core/src/main/java/inr/numass/data/api/NumassEvent.java
+++ b/numass-core/src/main/java/inr/numass/data/api/NumassEvent.java
@ -1,66 +0,0 @@
-/* 
- * Copyright 2015 Alexander Nozik.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package inr.numass.data.api;
-
-import java.io.Serializable;
-import java.time.Instant;
-
-/**
- * A single numass event with given amplitude and time.
- *
- * @author Darksnake
- */
-public class NumassEvent implements Serializable {
-    // channel
-    private final short chanel;
-    //The time of the block start
-    private final Instant blockTime;
-    //time in nanoseconds relative to block start
-    private final long timeOffset;
-
-    public NumassEvent(short chanel, Instant blockTime, long offset) {
-        this.chanel = chanel;
-        this.blockTime = blockTime;
-        this.timeOffset = offset;
-    }
-
-    public NumassEvent(short chanel, long offset) {
-        this(chanel, Instant.EPOCH, offset);
-    }
-
-    /**
-     * @return the chanel
-     */
-    public short getChanel() {
-        return chanel;
-    }
-
-    /**
-     * time in nanoseconds relative to block start
-     * @return the time
-     */
-    public long getTimeOffset() {
-        return timeOffset;
-    }
-
-    public Instant getBlockTime() {
-        return blockTime;
-    }
-
-    public Instant getTime() {
-        return blockTime.plusNanos(timeOffset);
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/NumassFrame.java
+++ b/numass-core/src/main/java/inr/numass/data/api/NumassFrame.java
@ -1,50 +0,0 @@
-package inr.numass.data.api;
-
-import java.nio.ShortBuffer;
-import java.time.Duration;
-import java.time.Instant;
-
-/**
- * The continuous frame of digital detector data
- * Created by darksnake on 06-Jul-17.
- */
-public class NumassFrame {
-
-    /**
-     * The absolute start time of the frame
-     */
-    private final Instant startTime;
-
-    /**
-     * The buffered signal shape in ticks
-     */
-    private final ShortBuffer signal;
-
-    /**
-     * The time interval per tick
-     */
-    private final Duration tickSize;
-
-
-    public NumassFrame(Instant startTime, Duration tickSize, ShortBuffer signal) {
-        this.startTime = startTime;
-        this.signal = signal;
-        this.tickSize = tickSize;
-    }
-
-    public Instant getTime() {
-        return startTime;
-    }
-
-    public ShortBuffer getSignal() {
-        return signal;
-    }
-
-    public Duration getTickSize() {
-        return tickSize;
-    }
-
-    public Duration getLength() {
-        return tickSize.multipliedBy(signal.capacity());
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/NumassPoint.java
+++ b/numass-core/src/main/java/inr/numass/data/api/NumassPoint.java
@ -1,94 +0,0 @@
-package inr.numass.data.api;
-
-import hep.dataforge.meta.Metoid;
-import hep.dataforge.values.Value;
-
-import java.time.Duration;
-import java.time.Instant;
-import java.util.stream.Stream;
-
-/**
- * Created by darksnake on 06-Jul-17.
- */
-public interface NumassPoint extends Metoid, NumassBlock {
-
-    String START_TIME_KEY = "start";
-    String LENGTH_KEY = "length";
-    String HV_KEY = "voltage";
-    String INDEX_KEY = "index";
-
-
-    Stream<NumassBlock> getBlocks();
-
-    /**
-     * Get the voltage setting for the point
-     *
-     * @return
-     */
-    default double getVoltage() {
-        return getMeta().getDouble(HV_KEY, 0);
-    }
-
-    /**
-     * Get the index for this point in the set
-     * @return
-     */
-    default int getIndex() {
-        return getMeta().getInt(INDEX_KEY, -1);
-    }
-
-    /**
-     * Get the first block if it exists. Throw runtime exception otherwise.
-     *
-     * @return
-     */
-    default NumassBlock getFirstBlock() {
-        return getBlocks().findFirst().orElseThrow(() -> new RuntimeException("The point is empty"));
-    }
-
-    /**
-     * Get the starting time from meta or from first block
-     *
-     * @return
-     */
-    @Override
-    default Instant getStartTime() {
-        return getMeta().optValue(START_TIME_KEY).map(Value::timeValue).orElseGet(() -> getFirstBlock().getStartTime());
-    }
-
-    /**
-     * Get the length key of meta or calculate length as a sum of block lengths. The latter could be a bit slow
-     *
-     * @return
-     */
-    @Override
-    default Duration getLength() {
-        return Duration.ofNanos(
-                getMeta().optValue(LENGTH_KEY).map(Value::longValue)
-                        .orElseGet(() -> getBlocks().mapToLong(it -> it.getLength().toNanos()).sum())
-        );
-    }
-
-    /**
-     * Get all events it all blocks as a single sequence
-     * <p>
-     * Some performance analysis of different stream concatenation approaches is given here: https://www.techempower.com/blog/2016/10/19/efficient-multiple-stream-concatenation-in-java/
-     * </p>
-     *
-     * @return
-     */
-    @Override
-    default Stream<NumassEvent> getEvents() {
-        return getBlocks().flatMap(NumassBlock::getEvents);
-    }
-
-    /**
-     * Get all frames in all blocks as a single sequence
-     *
-     * @return
-     */
-    @Override
-    default Stream<NumassFrame> getFrames() {
-        return getBlocks().flatMap(NumassBlock::getFrames);
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/NumassSet.java
+++ b/numass-core/src/main/java/inr/numass/data/api/NumassSet.java
@ -1,101 +0,0 @@
-/*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
-package inr.numass.data.api;
-
-import hep.dataforge.meta.Metoid;
-import hep.dataforge.names.Named;
-import hep.dataforge.providers.Provider;
-import hep.dataforge.providers.Provides;
-import hep.dataforge.providers.ProvidesNames;
-import hep.dataforge.tables.Table;
-import hep.dataforge.values.Value;
-import org.jetbrains.annotations.NotNull;
-
-import java.time.Instant;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Optional;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-/**
- * A single set of numass points previously called file.
- *
- * @author <a href="mailto:altavir@gmail.com">Alexander Nozik</a>
- */
-public interface NumassSet extends Named, Metoid, Iterable<NumassPoint>, Provider {
-    String DESCRIPTION_KEY = "info";
-    String NUMASS_POINT_PROVIDER_KEY = "point";
-
-    Stream<NumassPoint> getPoints();
-
-//    default String getDescription() {
-//        return getMeta().getString(DESCRIPTION_KEY, "");
-//    }
-
-    @NotNull
-    @Override
-    default Iterator<NumassPoint> iterator() {
-        return getPoints().iterator();
-    }
-
-    /**
-     * Get the first point if it exists. Throw runtime exception otherwise.
-     *
-     * @return
-     */
-    default NumassPoint getFirstPoint() {
-        return getPoints().findFirst().orElseThrow(() -> new RuntimeException("The set is empty"));
-    }
-
-    /**
-     * Get the starting time from meta or from first point
-     *
-     * @return
-     */
-    default Instant getStartTime() {
-        return getMeta().optValue(NumassPoint.START_TIME_KEY).map(Value::timeValue).orElseGet(() -> getFirstPoint().getStartTime());
-    }
-
-    /**
-     * Find first point with given voltage
-     *
-     * @param voltage
-     * @return
-     */
-    default Optional<NumassPoint> optPoint(double voltage) {
-        return getPoints().filter(it -> it.getVoltage() == voltage).findFirst();
-    }
-
-    /**
-     * List all points with given voltage
-     *
-     * @param voltage
-     * @return
-     */
-    default List<NumassPoint> getPoints(double voltage) {
-        return getPoints().filter(it -> it.getVoltage() == voltage).collect(Collectors.toList());
-    }
-
-    @Provides(NUMASS_POINT_PROVIDER_KEY)
-    default Optional<NumassPoint> optPoint(String voltage) {
-        return optPoint(Double.parseDouble(voltage));
-    }
-
-    @Override
-    default String defaultTarget() {
-        return NUMASS_POINT_PROVIDER_KEY;
-    }
-
-    @ProvidesNames(NUMASS_POINT_PROVIDER_KEY)
-    default Stream<String> listPoints() {
-        return getPoints().map(it -> Double.toString(it.getVoltage()));
-    }
-
-    default Optional<Table> getHvData() {
-        return Optional.empty();
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/SignalProcessor.java
+++ b/numass-core/src/main/java/inr/numass/data/api/SignalProcessor.java
@ -1,11 +0,0 @@
-package inr.numass.data.api;
-
-import java.util.stream.Stream;
-
-/**
- * An ancestor to numass frame analyzers
- * Created by darksnake on 07.07.2017.
- */
-public interface SignalProcessor {
-    Stream<NumassEvent> analyze(NumassFrame frame);
-}
--- a/numass-core/src/main/java/inr/numass/data/api/SimpleBlock.java
+++ b/numass-core/src/main/java/inr/numass/data/api/SimpleBlock.java
@ -1,43 +0,0 @@
-package inr.numass.data.api;
-
-import java.io.Serializable;
-import java.time.Duration;
-import java.time.Instant;
-import java.util.List;
-import java.util.stream.Stream;
-
-/**
- * A simple in-memory implementation of block of events. No frames are allowed
- * Created by darksnake on 08.07.2017.
- */
-public class SimpleBlock implements NumassBlock, Serializable {
-    private final Instant startTime;
-    private final Duration length;
-    private final List<NumassEvent> events;
-
-    public SimpleBlock(Instant startTime, Duration length, List<NumassEvent> events) {
-        this.startTime = startTime;
-        this.length = length;
-        this.events = events;
-    }
-
-    @Override
-    public Instant getStartTime() {
-        return startTime;
-    }
-
-    @Override
-    public Duration getLength() {
-        return length;
-    }
-
-    @Override
-    public Stream<NumassEvent> getEvents() {
-        return events.stream();
-    }
-
-    @Override
-    public Stream<NumassFrame> getFrames() {
-        return Stream.empty();
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/api/SimpleNumassPoint.java
+++ b/numass-core/src/main/java/inr/numass/data/api/SimpleNumassPoint.java
@ -1,41 +0,0 @@
-package inr.numass.data.api;
-
-import hep.dataforge.meta.Meta;
-import hep.dataforge.meta.MetaBuilder;
-import hep.dataforge.meta.MetaHolder;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Comparator;
-import java.util.List;
-import java.util.stream.Stream;
-
-/**
- * A simple static implementation of NumassPoint
- * Created by darksnake on 08.07.2017.
- */
-public class SimpleNumassPoint extends MetaHolder implements NumassPoint {
-    private final List<NumassBlock> blocks;
-
-    /**
-     * Input blocks must be sorted
-     * @param voltage
-     * @param blocks
-     */
-    public SimpleNumassPoint(double voltage, Collection<? extends NumassBlock> blocks) {
-        super(new MetaBuilder("point").setValue(HV_KEY, voltage));
-        this.blocks = new ArrayList<>(blocks);
-        this.blocks.sort(Comparator.comparing(NumassBlock::getStartTime));
-    }
-
-    public SimpleNumassPoint(Meta meta, Collection<? extends NumassBlock> blocks) {
-        super(meta);
-        this.blocks = new ArrayList<>(blocks);
-        this.blocks.sort(Comparator.comparing(NumassBlock::getStartTime));
-    }
-
-    @Override
-    public Stream<NumassBlock> getBlocks() {
-        return blocks.stream();
-    }
-}
--- a/numass-core/src/main/java/inr/numass/data/legacy/NumassDatFile.java
+++ b/numass-core/src/main/java/inr/numass/data/legacy/NumassDatFile.java
@ -1,265 +0,0 @@
-package inr.numass.data.legacy;
-
-import hep.dataforge.meta.Meta;
-import hep.dataforge.meta.MetaBuilder;
-import inr.numass.data.api.*;
-import org.apache.commons.io.FilenameUtils;
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.channels.SeekableByteChannel;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.time.Duration;
-import java.time.LocalDateTime;
-import java.time.ZoneOffset;
-import java.time.format.DateTimeFormatter;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Scanner;
-import java.util.stream.Stream;
-
-import static inr.numass.data.api.NumassPoint.HV_KEY;
-import static java.nio.file.StandardOpenOption.READ;
-
-/**
- * Created by darksnake on 08.07.2017.
- */
-public class NumassDatFile implements NumassSet {
-    private final String name;
-    private final Path path;
-    private final Meta meta;
-
-    public NumassDatFile(Path path, Meta meta) throws IOException {
-        this(FilenameUtils.getBaseName(path.getFileName().toString()),path,meta);
-    }
-
-    public NumassDatFile(String name, Path path, Meta meta) throws IOException {
-        this.name = name;
-        this.path = path;
-        String head = readHead(path);//2048
-        this.meta = new MetaBuilder(meta)
-                .setValue("info", head)
-                .setValue(NumassPoint.START_TIME_KEY, readDate(head))
-                .build();
-    }
-
-    @Override
-    public Meta getMeta() {
-        return meta;
-    }
-
-    @Override
-    public String getName() {
-        return name;
-    }
-
-    private double getHVdev() {
-        return getMeta().getDouble("dat.hvDev", 2.468555393226049);
-    }
-
-    private boolean hasUset() {
-        return getMeta().getBoolean("dat.uSet", true);
-    }
-
-    private static String readHead(Path path) throws IOException {
-        try (SeekableByteChannel channel = Files.newByteChannel(path, READ)) {
-            channel.position(0);
-            ByteBuffer buffer = ByteBuffer.allocate(2048);
-            channel.read(buffer);
-            return new String(buffer.array()).replaceAll("\u0000", "");
-        }
-    }
-
-    /**
-     * Read the block at current position
-     *
-     * @param channel
-     * @param length
-     * @return
-     * @throws IOException
-     */
-    private ByteBuffer readBlock(SeekableByteChannel channel, int length) throws IOException {
-        ByteBuffer res = ByteBuffer.allocate(length);
-        channel.read(res);
-        res.order(ByteOrder.LITTLE_ENDIAN);
-        res.flip();
-        return res;
-    }
-
-    /**
-     * Read the point at current position
-     *
-     * @param channel
-     * @return
-     * @throws IOException
-     */
-    private synchronized NumassPoint readPoint(SeekableByteChannel channel) throws
-            IOException {
-
-        ByteBuffer rx = readBlock(channel, 32);
-
-        int voltage = rx.getInt();
-
-        short length = rx.getShort();//(short) (rx[6] + 256 * rx[7]);
-        boolean phoneFlag = rx.get(19) != 0;//(rx[19] != 0);
-
-
-        double timeDiv;
-        switch (length) {
-            case 5:
-            case 10:
-                timeDiv = 2e7;
-                break;
-            case 15:
-            case 20:
-                timeDiv = 1e7;
-                break;
-            case 50:
-                timeDiv = 5e6;
-                break;
-            case 100:
-                timeDiv = 2.5e6;
-                break;
-            case 200:
-                timeDiv = 1.25e6;
-                break;
-            default:
-                throw new IOException("Unknown time divider in input data");
-        }
-
-        if (phoneFlag) {
-            timeDiv /= 20.0;
-            length *= 20;
-        }
-
-        List<NumassEvent> events = new ArrayList<>();
-        int lab = readBlock(channel, 1).get();
-
-        while (lab == 0xBF) {
-            ByteBuffer buffer = readBlock(channel, 5);
-            lab = buffer.get(4);
-        }
-
-        do {
-            events.add(readEvent(channel, lab, timeDiv));
-            lab = readBlock(channel, 1).get();
-        } while (lab != 0xAF);
-
-        //point end
-        ByteBuffer ending = readBlock(channel, 64);
-
-        int hours = ending.get(37);
-        int minutes = ending.get(38);
-
-        LocalDateTime start = LocalDateTime.from(getStartTime());
-        LocalDateTime absoluteTime = start.withHour(hours).withMinute(minutes);
-
-        //проверяем, не проскочили ли мы полночь
-        if (absoluteTime.isBefore(start)) {
-            absoluteTime = absoluteTime.plusDays(1);
-        }
-
-
-        int uRead = ending.getInt(39);
-
-        double uSet;
-        if (!this.hasUset()) {
-            uSet = uRead / 10d / getHVdev();
-        } else {
-            uSet = voltage / 10d;
-        }
-
-        NumassBlock block = new SimpleBlock(absoluteTime.toInstant(ZoneOffset.UTC), Duration.ofSeconds(length), events);
-
-        Meta pointMeta = new MetaBuilder("point")
-                .setValue(HV_KEY, uSet)
-                .setValue("uRead", uRead / 10 / getHVdev())
-                .setValue("source", "legacy");
-
-
-        return new SimpleNumassPoint(pointMeta, Collections.singletonList(block));
-    }
-
-    @Override
-    public Stream<NumassPoint> getPoints() {
-        try (SeekableByteChannel channel = Files.newByteChannel(path, READ)) {
-
-            //int lab = readBlock(channel,1).get();
-            int lab;
-            List<NumassPoint> points = new ArrayList<>();
-            do {
-                //TODO check point start
-                points.add(readPoint(channel));
-                lab = readBlock(channel, 1).get();
-            } while (lab != 0xff);
-            return points.stream();
-        } catch (IOException ex) {
-            throw new RuntimeException(ex);
-        }
-
-    }
-
-    private LocalDateTime readDate(String head) throws IOException {
-        // Должны считать 14 символов
-        Scanner sc = new Scanner(head);
-        sc.nextLine();
-        String dateStr = sc.nextLine().trim();
-        //DD.MM.YY HH:MM
-        //12:35:16 19-11-2013
-        DateTimeFormatter format = DateTimeFormatter.ofPattern("HH:mm:ss dd-MM-yyyy");
-
-        return LocalDateTime.parse(dateStr, format);
-    }
-
-    private NumassEvent readEvent(SeekableByteChannel channel, int b, double timeDiv) throws IOException {
-        short chanel;
-        long time;
-
-        int hb = (b & 0x0f);
-        int lab = (b & 0xf0);
-
-        switch (lab) {
-            case 0x10:
-                chanel = readChanel(channel, hb);
-                time = readTime(channel);
-                break;
-            case 0x20:
-                chanel = 0;
-                time = readTime(channel);
-                break;
-            case 0x40:
-                time = 0;
-                chanel = readChanel(channel, hb);
-                break;
-            case 0x80:
-                time = 0;
-                chanel = 0;
-                break;
-            default:
-                throw new IOException("Event head expected");
-        }
-
-        return new NumassEvent(chanel, (long) (time / timeDiv));
-    }
-
-    private short readChanel(SeekableByteChannel channel, int hb) throws IOException {
-        assert hb < 127;
-        ByteBuffer buffer = readBlock(channel, 1);
-        return (short) (buffer.get() + 256 * hb);
-    }
-
-    private long readTime(SeekableByteChannel channel) throws IOException {
-        ByteBuffer rx = readBlock(channel, 4);
-        return rx.getLong();//rx[0] + 256 * rx[1] + 65536 * rx[2] + 256 * 65536 * rx[3];
-    }
-
-//    private void skip(int length) throws IOException {
-//        long n = stream.skip(length);
-//        if (n != length) {
-//            stream.skip(length - n);
-//        }
-//    }
-}
--- a/numass-core/src/main/java/inr/numass/data/legacy/NumassFileEnvelope.java
+++ b/numass-core/src/main/java/inr/numass/data/legacy/NumassFileEnvelope.java
@ -1,45 +0,0 @@
-package inr.numass.data.legacy;
-
-import hep.dataforge.io.envelopes.EnvelopeTag;
-import hep.dataforge.storage.filestorage.FileEnvelope;
-import inr.numass.NumassEnvelopeType;
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.file.Path;
-
-import static java.nio.file.StandardOpenOption.READ;
-
-public class NumassFileEnvelope extends FileEnvelope {
-
-    public static byte[] LEGACY_START_SEQUENCE = {'#','!'};
-    public static byte[] LEGACY_END_SEQUENCE = {'!','#','\r','\n'};
-
-    public static FileEnvelope open(Path path, boolean readOnly) {
-//        if (!Files.exists(path)) {
-//            throw new RuntimeException("File envelope does not exist");
-//        }
-
-        try (FileChannel channel = FileChannel.open(path,READ)) {
-            MappedByteBuffer buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, 2);
-            if (buffer.compareTo(ByteBuffer.wrap(LEGACY_START_SEQUENCE)) == 0) {
-                return new NumassFileEnvelope(path, readOnly);
-            } else {
-                return FileEnvelope.Companion.open(path, readOnly);
-            }
-        } catch (IOException e) {
-            throw new RuntimeException("Failed to open file envelope", e);
-        }
-    }
-
-    private NumassFileEnvelope(Path path, boolean readOnly) {
-        super(path, readOnly);
-    }
-
-    @Override
-    protected EnvelopeTag buildTag() {
-        return new NumassEnvelopeType.LegacyTag();
-    }
-}
--- a/numass-core/src/main/kotlin/inr/numass/data/SpectrumAdapter.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/SpectrumAdapter.kt
@ -0,0 +1,102 @@
+/* 
+ * Copyright 2015 Alexander Nozik.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package inr.numass.data
+
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.tables.Adapters.*
+import hep.dataforge.tables.BasicAdapter
+import hep.dataforge.tables.ValueMap
+import hep.dataforge.tables.ValuesAdapter
+import hep.dataforge.values.Value
+import hep.dataforge.values.Values
+import java.util.*
+import java.util.stream.Stream
+
+/**
+ * @author Darksnake
+ */
+class SpectrumAdapter : BasicAdapter {
+
+    constructor(meta: Meta) : super(meta) {}
+
+    constructor(xName: String, yName: String, yErrName: String, measurementTime: String) : super(MetaBuilder(ValuesAdapter.ADAPTER_KEY)
+            .setValue(X_VALUE_KEY, xName)
+            .setValue(Y_VALUE_KEY, yName)
+            .setValue(Y_ERROR_KEY, yErrName)
+            .setValue(POINT_LENGTH_NAME, measurementTime)
+            .build()
+    ) {
+    }
+
+    constructor(xName: String, yName: String, measurementTime: String) : super(MetaBuilder(ValuesAdapter.ADAPTER_KEY)
+            .setValue(X_VALUE_KEY, xName)
+            .setValue(Y_VALUE_KEY, yName)
+            .setValue(POINT_LENGTH_NAME, measurementTime)
+            .build()
+    ) {
+    }
+
+    fun getTime(point: Values): Double {
+        return this.optComponent(point, POINT_LENGTH_NAME).map<Double> { it.doubleValue() }.orElse(1.0)
+    }
+
+    fun buildSpectrumDataPoint(x: Double, count: Long, t: Double): Values {
+        return ValueMap.of(arrayOf(getComponentName(X_VALUE_KEY), getComponentName(Y_VALUE_KEY), getComponentName(POINT_LENGTH_NAME)),
+                x, count, t)
+    }
+
+    fun buildSpectrumDataPoint(x: Double, count: Long, countErr: Double, t: Double): Values {
+        return ValueMap.of(arrayOf(getComponentName(X_VALUE_KEY), getComponentName(Y_VALUE_KEY), getComponentName(Y_ERROR_KEY), getComponentName(POINT_LENGTH_NAME)),
+                x, count, countErr, t)
+    }
+
+
+    override fun optComponent(values: Values, component: String): Optional<Value> {
+        when (component) {
+            "count" -> return super.optComponent(values, Y_VALUE_KEY)
+            Y_VALUE_KEY -> return super.optComponent(values, Y_VALUE_KEY)
+                    .map { it -> it.doubleValue() / getTime(values) }
+                    .map { Value.of(it) }
+            Y_ERROR_KEY -> {
+                val err = super.optComponent(values, Y_ERROR_KEY)
+                return if (err.isPresent) {
+                    Optional.of(Value.of(err.get().doubleValue() / getTime(values)))
+                } else {
+                    val y = getComponent(values, Y_VALUE_KEY).doubleValue()
+                    if (y < 0) {
+                        Optional.empty()
+                    } else if (y == 0.0) {
+                        //avoid infinite weights
+                        Optional.of(Value.of(1.0 / getTime(values)))
+                    } else {
+                        Optional.of(Value.of(Math.sqrt(y) / getTime(values)))
+                    }
+                }
+            }
+
+            else -> return super.optComponent(values, component)
+        }
+    }
+
+    override fun listComponents(): Stream<String> {
+        return Stream.concat(super.listComponents(), Stream.of(X_VALUE_KEY, Y_VALUE_KEY, POINT_LENGTH_NAME)).distinct()
+    }
+
+    companion object {
+        private const val POINT_LENGTH_NAME = "time"
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/analyzers/AbstractAnalyzer.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/analyzers/AbstractAnalyzer.kt
@ -24,7 +24,7 @@ import hep.dataforge.tables.TableFormat
 import hep.dataforge.tables.TableFormatBuilder
 import inr.numass.data.api.NumassBlock
 import inr.numass.data.api.NumassEvent
-import inr.numass.data.api.NumassPoint.HV_KEY
+import inr.numass.data.api.NumassPoint.Companion.HV_KEY
 import inr.numass.data.api.NumassSet
 import inr.numass.data.api.SignalProcessor
 import java.lang.IllegalArgumentException
@ -48,7 +48,7 @@ abstract class AbstractAnalyzer @JvmOverloads constructor(private val processor:
        val loChannel = meta.getInt("window.lo", 0)
        val upChannel = meta.getInt("window.up", Integer.MAX_VALUE)
        var res = getAllEvents(block).filter { event ->
-            event.chanel.toInt() in loChannel..(upChannel - 1)
+            event.amp.toInt() in loChannel..(upChannel - 1)
        }
        if (meta.getBoolean("sort", false)) {
            res = res.sorted(Comparator.comparing<NumassEvent, Long> { it.timeOffset })
--- a/numass-core/src/main/kotlin/inr/numass/data/analyzers/NumassAnalyzer.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/analyzers/NumassAnalyzer.kt
@ -24,7 +24,7 @@ import hep.dataforge.values.Values
 import inr.numass.data.api.NumassBlock
 import inr.numass.data.api.NumassEvent
 import inr.numass.data.api.NumassPoint
-import inr.numass.data.api.NumassPoint.HV_KEY
+import inr.numass.data.api.NumassPoint.Companion.HV_KEY
 import inr.numass.data.api.NumassSet
 import java.util.*
 import java.util.concurrent.atomic.AtomicLong
@ -56,7 +56,7 @@ interface NumassAnalyzer {
     */
    fun analyzePoint(point: NumassPoint, config: Meta = Meta.empty()): Values {
        val map = HashMap(analyze(point, config).asMap())
-        map.put(HV_KEY, Value.of(point.voltage))
+        map[HV_KEY] = Value.of(point.voltage)
        return ValueMap(map)
    }

@ -161,7 +161,7 @@ fun getAmplitudeSpectrum(events: Sequence<NumassEvent>, length: Double, config:
    //optimized for fastest computation
    val spectrum: MutableMap<Int, AtomicLong> = HashMap()
    events.forEach { event ->
-        val channel = event.chanel.toInt()
+        val channel = event.amp.toInt()
        spectrum.getOrPut(channel) {
            AtomicLong(0)
        }.incrementAndGet()
--- a/numass-core/src/main/kotlin/inr/numass/data/analyzers/TimeAnalyzer.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/analyzers/TimeAnalyzer.kt
@ -29,7 +29,7 @@ import hep.dataforge.values.Values
 import inr.numass.data.api.NumassBlock
 import inr.numass.data.api.NumassEvent
 import inr.numass.data.api.NumassPoint
-import inr.numass.data.api.NumassPoint.HV_KEY
+import inr.numass.data.api.NumassPoint.Companion.HV_KEY
 import inr.numass.data.api.SignalProcessor
 import java.util.*
 import java.util.concurrent.atomic.AtomicLong
--- a/numass-core/src/main/kotlin/inr/numass/data/api/MetaBlock.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/MetaBlock.kt
@ -0,0 +1,38 @@
+package inr.numass.data.api
+
+import java.time.Duration
+import java.time.Instant
+import java.util.*
+import java.util.stream.Stream
+
+/**
+ * A block constructed from a set of other blocks. Internal blocks are not necessary subsequent. Blocks are automatically sorted.
+ * Created by darksnake on 16.07.2017.
+ */
+class MetaBlock : NumassBlock {
+    private val blocks = TreeSet(Comparator.comparing<NumassBlock, Instant>{ it.startTime })
+
+    override val startTime: Instant
+        get() = blocks.first().startTime
+
+    override val length: Duration
+        get() = Duration.ofNanos(blocks.stream().mapToLong { block -> block.length.toNanos() }.sum())
+
+    override val events: Stream<NumassEvent>
+        get() = blocks.stream()
+                .sorted(Comparator.comparing<NumassBlock, Instant>{ it.startTime })
+                .flatMap{ it.events }
+
+    override val frames: Stream<NumassFrame>
+        get() = blocks.stream()
+                .sorted(Comparator.comparing<NumassBlock, Instant>{ it.startTime })
+                .flatMap{ it.frames }
+
+    constructor(vararg blocks: NumassBlock) {
+        this.blocks.addAll(Arrays.asList(*blocks))
+    }
+
+    constructor(blocks: Collection<NumassBlock>) {
+        this.blocks.addAll(blocks)
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/NumassBlock.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/NumassBlock.kt
@ -0,0 +1,49 @@
+package inr.numass.data.api
+
+import java.time.Duration
+import java.time.Instant
+import java.util.stream.Stream
+
+
+typealias NumassChannel = Int
+
+
+
+/**
+ * A single continuous measurement block. The block can contain both isolated events and signal frames
+ *
+ *
+ * Created by darksnake on 06-Jul-17.
+ */
+interface NumassBlock {
+
+    /**
+     * A channel
+     */
+    val channel: NumassChannel
+        get() = DEFAULT_CHANNEL
+
+    /**
+     * The absolute start time of the block
+     */
+    val startTime: Instant
+
+    /**
+     * The length of the block
+     */
+    val length: Duration
+
+    /**
+     * Stream of isolated events. Could be empty
+     */
+    val events: Stream<NumassEvent>
+
+    /**
+     * Stream of frames. Could be empty
+     */
+    val frames: Stream<NumassFrame>
+
+    companion object {
+        val DEFAULT_CHANNEL: NumassChannel = -1
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/NumassEvent.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/NumassEvent.kt
@ -0,0 +1,38 @@
+/* 
+ * Copyright 2015 Alexander Nozik.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package inr.numass.data.api
+
+import java.io.Serializable
+import java.time.Instant
+
+/**
+ * A single numass event with given amplitude and time.
+ *
+ * @author Darksnake
+ * @property amp the amplitude of the event
+ * @property blockTime
+ * @property timeOffset time in nanoseconds relative to block start
+ *
+ */
+class NumassEvent(val amp: Short, val timeOffset: Long, val block: NumassBlock? = null) : Serializable {
+
+    val channel: NumassChannel?
+        get() = block?.channel
+
+    val time: Instant
+        get() = (block?.startTime ?: Instant.EPOCH).plusNanos(timeOffset)
+
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/NumassFrame.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/NumassFrame.kt
@ -0,0 +1,27 @@
+package inr.numass.data.api
+
+import java.nio.ShortBuffer
+import java.time.Duration
+import java.time.Instant
+
+/**
+ * The continuous frame of digital detector data
+ * Created by darksnake on 06-Jul-17.
+ */
+class NumassFrame(
+        /**
+         * The absolute start time of the frame
+         */
+        val time: Instant,
+        /**
+         * The time interval per tick
+         */
+        val tickSize: Duration,
+        /**
+         * The buffered signal shape in ticks
+         */
+        val signal: ShortBuffer) {
+
+    val length: Duration
+        get() = tickSize.multipliedBy(signal.capacity().toLong())
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/NumassPoint.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/NumassPoint.kt
@ -0,0 +1,85 @@
+package inr.numass.data.api
+
+import hep.dataforge.meta.Metoid
+import java.time.Duration
+import java.time.Instant
+import java.util.stream.Stream
+
+/**
+ * Created by darksnake on 06-Jul-17.
+ */
+interface NumassPoint : Metoid, NumassBlock {
+
+
+    val blocks: Stream<NumassBlock>
+
+    /**
+     * Get the voltage setting for the point
+     *
+     * @return
+     */
+    val voltage: Double
+        get() = meta.getDouble(HV_KEY, 0.0)
+
+    /**
+     * Get the index for this point in the set
+     * @return
+     */
+    val index: Int
+        get() = meta.getInt(INDEX_KEY, -1)
+
+    /**
+     * Get the first block if it exists. Throw runtime exception otherwise.
+     *
+     * @return
+     */
+    val firstBlock: NumassBlock
+        get() = blocks.findFirst().orElseThrow { RuntimeException("The point is empty") }
+
+    /**
+     * Get the starting time from meta or from first block
+     *
+     * @return
+     */
+    override val startTime: Instant
+        get() = meta.optValue(START_TIME_KEY).map<Instant>{ it.timeValue() }.orElseGet { firstBlock.startTime }
+
+    /**
+     * Get the length key of meta or calculate length as a sum of block lengths. The latter could be a bit slow
+     *
+     * @return
+     */
+    override val length: Duration
+        get() = Duration.ofNanos(
+                meta.optValue(LENGTH_KEY).map<Long>{ it.longValue() }
+                        .orElseGet { blocks.mapToLong { it -> it.length.toNanos() }.sum() }
+        )
+
+    /**
+     * Get all events it all blocks as a single sequence
+     *
+     *
+     * Some performance analysis of different stream concatenation approaches is given here: https://www.techempower.com/blog/2016/10/19/efficient-multiple-stream-concatenation-in-java/
+     *
+     *
+     * @return
+     */
+    override val events: Stream<NumassEvent>
+        get() = blocks.flatMap{ it.events }
+
+    /**
+     * Get all frames in all blocks as a single sequence
+     *
+     * @return
+     */
+    override val frames: Stream<NumassFrame>
+        get() = blocks.flatMap{ it.frames }
+
+    companion object {
+
+        const val START_TIME_KEY = "start"
+        const val LENGTH_KEY = "length"
+        const val HV_KEY = "voltage"
+        const val INDEX_KEY = "index"
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/NumassSet.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/NumassSet.kt
@ -0,0 +1,93 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package inr.numass.data.api
+
+import hep.dataforge.kodex.toList
+import hep.dataforge.meta.Metoid
+import hep.dataforge.names.Named
+import hep.dataforge.providers.Provider
+import hep.dataforge.providers.Provides
+import hep.dataforge.providers.ProvidesNames
+import hep.dataforge.tables.Table
+import java.time.Instant
+import java.util.*
+import java.util.stream.Stream
+
+/**
+ * A single set of numass points previously called file.
+ *
+ * @author [Alexander Nozik](mailto:altavir@gmail.com)
+ */
+interface NumassSet : Named, Metoid, Iterable<NumassPoint>, Provider {
+
+    val points: Stream<NumassPoint>
+
+    /**
+     * Get the first point if it exists. Throw runtime exception otherwise.
+     *
+     * @return
+     */
+    val firstPoint: NumassPoint
+        get() = points.findFirst().orElseThrow { RuntimeException("The set is empty") }
+
+    /**
+     * Get the starting time from meta or from first point
+     *
+     * @return
+     */
+    val startTime: Instant
+        get() = meta.optValue(NumassPoint.START_TIME_KEY).map<Instant>{ it.timeValue() }.orElseGet { firstPoint.startTime }
+
+    val hvData: Optional<Table>
+        get() = Optional.empty()
+
+    //    default String getDescription() {
+    //        return getMeta().getString(DESCRIPTION_KEY, "");
+    //    }
+
+    override fun iterator(): Iterator<NumassPoint> {
+        return points.iterator()
+    }
+
+    /**
+     * Find first point with given voltage
+     *
+     * @param voltage
+     * @return
+     */
+    fun optPoint(voltage: Double): Optional<NumassPoint> {
+        return points.filter { it -> it.voltage == voltage }.findFirst()
+    }
+
+    /**
+     * List all points with given voltage
+     *
+     * @param voltage
+     * @return
+     */
+    fun getPoints(voltage: Double): List<NumassPoint> {
+        return points.filter { it -> it.voltage == voltage }.toList()
+    }
+
+    @Provides(NUMASS_POINT_PROVIDER_KEY)
+    fun optPoint(voltage: String): Optional<NumassPoint> {
+        return optPoint(java.lang.Double.parseDouble(voltage))
+    }
+
+    override fun defaultTarget(): String {
+        return NUMASS_POINT_PROVIDER_KEY
+    }
+
+    @ProvidesNames(NUMASS_POINT_PROVIDER_KEY)
+    fun listPoints(): Stream<String> {
+        return points.map { it -> java.lang.Double.toString(it.voltage) }
+    }
+
+    companion object {
+        const val DESCRIPTION_KEY = "info"
+        const val NUMASS_POINT_PROVIDER_KEY = "point"
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/SignalProcessor.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/SignalProcessor.kt
@ -0,0 +1,11 @@
+package inr.numass.data.api
+
+import java.util.stream.Stream
+
+/**
+ * An ancestor to numass frame analyzers
+ * Created by darksnake on 07.07.2017.
+ */
+interface SignalProcessor {
+    fun analyze(frame: NumassFrame): Stream<NumassEvent>
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/SimpleBlock.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/SimpleBlock.kt
@ -0,0 +1,19 @@
+package inr.numass.data.api
+
+import java.io.Serializable
+import java.time.Duration
+import java.time.Instant
+import java.util.stream.Stream
+
+/**
+ * A simple in-memory implementation of block of events. No frames are allowed
+ * Created by darksnake on 08.07.2017.
+ */
+class SimpleBlock(override val startTime: Instant, override val length: Duration, private val eventList: List<NumassEvent>) : NumassBlock, Serializable {
+
+    override val frames: Stream<NumassFrame> = Stream.empty()
+
+    override val events: Stream<NumassEvent>
+        get() = eventList.stream()
+
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/api/SimpleNumassPoint.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/api/SimpleNumassPoint.kt
@ -0,0 +1,31 @@
+package inr.numass.data.api
+
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaBuilder
+import hep.dataforge.meta.MetaHolder
+
+import java.util.stream.Stream
+
+/**
+ * A simple static implementation of NumassPoint
+ * Created by darksnake on 08.07.2017.
+ */
+class SimpleNumassPoint : MetaHolder, NumassPoint {
+    private val blockList: List<NumassBlock>
+
+    /**
+     * Input blocks must be sorted
+     * @param voltage
+     * @param blocks
+     */
+    constructor(voltage: Double, blocks: Collection<NumassBlock>) : super(MetaBuilder("point").setValue(NumassPoint.HV_KEY, voltage)) {
+        this.blockList = blocks.sortedBy { it.startTime }
+    }
+
+    constructor(meta: Meta, blocks: Collection<NumassBlock>) : super(meta) {
+        this.blockList = blocks.sortedBy { it.startTime }
+    }
+
+    override val blocks: Stream<NumassBlock>
+        get() = blockList.stream()
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/legacy/NumassDatFile.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/legacy/NumassDatFile.kt
@ -0,0 +1,244 @@
+package inr.numass.data.legacy
+
+import hep.dataforge.meta.Meta
+import hep.dataforge.meta.MetaBuilder
+import inr.numass.data.api.*
+import inr.numass.data.api.NumassPoint.Companion.HV_KEY
+import org.apache.commons.io.FilenameUtils
+import java.io.IOException
+import java.nio.ByteBuffer
+import java.nio.ByteOrder
+import java.nio.channels.SeekableByteChannel
+import java.nio.file.Files
+import java.nio.file.Path
+import java.nio.file.StandardOpenOption.READ
+import java.time.Duration
+import java.time.LocalDateTime
+import java.time.ZoneOffset
+import java.time.format.DateTimeFormatter
+import java.util.*
+import java.util.stream.Stream
+
+/**
+ * Created by darksnake on 08.07.2017.
+ */
+class NumassDatFile @Throws(IOException::class)
+constructor(private val name: String, private val path: Path, meta: Meta) : NumassSet {
+    private val meta: Meta
+
+    private val hVdev: Double
+        get() = getMeta().getDouble("dat.hvDev", 2.468555393226049)
+
+    override//int lab = readBlock(channel,1).get();
+    //TODO check point start
+    val points: Stream<NumassPoint>
+        get() = try {
+            Files.newByteChannel(path, READ).use { channel ->
+                var lab: Int
+                val points = ArrayList<NumassPoint>()
+                do {
+                    points.add(readPoint(channel))
+                    lab = readBlock(channel, 1).get().toInt()
+                } while (lab != 0xff)
+                return points.stream()
+            }
+        } catch (ex: IOException) {
+            throw RuntimeException(ex)
+        }
+
+    @Throws(IOException::class)
+    constructor(path: Path, meta: Meta) : this(FilenameUtils.getBaseName(path.fileName.toString()), path, meta) {
+    }
+
+    init {
+        val head = readHead(path)//2048
+        this.meta = MetaBuilder(meta)
+                .setValue("info", head)
+                .setValue(NumassPoint.START_TIME_KEY, readDate(head))
+                .build()
+    }
+
+    override fun getMeta(): Meta {
+        return meta
+    }
+
+    override fun getName(): String {
+        return name
+    }
+
+    private fun hasUset(): Boolean {
+        return getMeta().getBoolean("dat.uSet", true)
+    }
+
+    @Throws(IOException::class)
+    private fun readHead(path: Path): String {
+        Files.newByteChannel(path, READ).use { channel ->
+            channel.position(0)
+            val buffer = ByteBuffer.allocate(2048)
+            channel.read(buffer)
+            return String(buffer.array()).replace("\u0000".toRegex(), "")
+        }
+    }
+
+    /**
+     * Read the block at current position
+     *
+     * @param channel
+     * @param length
+     * @return
+     * @throws IOException
+     */
+    @Throws(IOException::class)
+    private fun readBlock(channel: SeekableByteChannel, length: Int): ByteBuffer {
+        val res = ByteBuffer.allocate(length)
+        channel.read(res)
+        res.order(ByteOrder.LITTLE_ENDIAN)
+        res.flip()
+        return res
+    }
+
+    /**
+     * Read the point at current position
+     *
+     * @param channel
+     * @return
+     * @throws IOException
+     */
+    @Synchronized
+    @Throws(IOException::class)
+    private fun readPoint(channel: SeekableByteChannel): NumassPoint {
+
+        val rx = readBlock(channel, 32)
+
+        val voltage = rx.int
+
+        var length = rx.short//(short) (rx[6] + 256 * rx[7]);
+        val phoneFlag = rx.get(19).toInt() != 0//(rx[19] != 0);
+
+
+        var timeDiv: Double = when (length.toInt()) {
+            5, 10 -> 2e7
+            15, 20 -> 1e7
+            50 -> 5e6
+            100 -> 2.5e6
+            200 -> 1.25e6
+            else -> throw IOException("Unknown time divider in input data")
+        }
+
+        if (phoneFlag) {
+            timeDiv /= 20.0
+            length = (length*20).toShort()
+        }
+
+        val events = ArrayList<NumassEvent>()
+        var lab = readBlock(channel, 1).get().toInt()
+
+        while (lab == 0xBF) {
+            val buffer = readBlock(channel, 5)
+            lab = buffer.get(4).toInt()
+        }
+
+        do {
+            events.add(readEvent(channel, lab, timeDiv))
+            lab = readBlock(channel, 1).get().toInt()
+        } while (lab != 0xAF)
+
+        //point end
+        val ending = readBlock(channel, 64)
+
+        val hours = ending.get(37).toInt()
+        val minutes = ending.get(38).toInt()
+
+        val start = LocalDateTime.from(startTime)
+        var absoluteTime = start.withHour(hours).withMinute(minutes)
+
+        //проверяем, не проскочили ли мы полночь
+        if (absoluteTime.isBefore(start)) {
+            absoluteTime = absoluteTime.plusDays(1)
+        }
+
+
+        val uRead = ending.getInt(39)
+
+        val uSet: Double
+        if (!this.hasUset()) {
+            uSet = uRead.toDouble() / 10.0 / hVdev
+        } else {
+            uSet = voltage / 10.0
+        }
+
+        val block = SimpleBlock(absoluteTime.toInstant(ZoneOffset.UTC), Duration.ofSeconds(length.toLong()), events)
+
+        val pointMeta = MetaBuilder("point")
+                .setValue(HV_KEY, uSet)
+                .setValue("uRead", uRead.toDouble() / 10.0 / hVdev)
+                .setValue("source", "legacy")
+
+
+        return SimpleNumassPoint(pointMeta, listOf<NumassBlock>(block))
+    }
+
+    @Throws(IOException::class)
+    private fun readDate(head: String): LocalDateTime {
+        // Должны считать 14 символов
+        val sc = Scanner(head)
+        sc.nextLine()
+        val dateStr = sc.nextLine().trim { it <= ' ' }
+        //DD.MM.YY HH:MM
+        //12:35:16 19-11-2013
+        val format = DateTimeFormatter.ofPattern("HH:mm:ss dd-MM-yyyy")
+
+        return LocalDateTime.parse(dateStr, format)
+    }
+
+    @Throws(IOException::class)
+    private fun readEvent(channel: SeekableByteChannel, b: Int, timeDiv: Double): NumassEvent {
+        val chanel: Short
+        val time: Long
+
+        val hb = b and 0x0f
+        val lab = b and 0xf0
+
+        when (lab) {
+            0x10 -> {
+                chanel = readChanel(channel, hb)
+                time = readTime(channel)
+            }
+            0x20 -> {
+                chanel = 0
+                time = readTime(channel)
+            }
+            0x40 -> {
+                time = 0
+                chanel = readChanel(channel, hb)
+            }
+            0x80 -> {
+                time = 0
+                chanel = 0
+            }
+            else -> throw IOException("Event head expected")
+        }
+
+        return NumassEvent(chanel, (time / timeDiv).toLong())
+    }
+
+    @Throws(IOException::class)
+    private fun readChanel(channel: SeekableByteChannel, hb: Int): Short {
+        assert(hb < 127)
+        val buffer = readBlock(channel, 1)
+        return (buffer.get() + 256 * hb).toShort()
+    }
+
+    @Throws(IOException::class)
+    private fun readTime(channel: SeekableByteChannel): Long {
+        val rx = readBlock(channel, 4)
+        return rx.long//rx[0] + 256 * rx[1] + 65536 * rx[2] + 256 * 65536 * rx[3];
+    }
+
+    //    private void skip(int length) throws IOException {
+    //        long n = stream.skip(length);
+    //        if (n != length) {
+    //            stream.skip(length - n);
+    //        }
+    //    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/legacy/NumassFileEnvelope.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/legacy/NumassFileEnvelope.kt
@ -0,0 +1,43 @@
+package inr.numass.data.legacy
+
+import hep.dataforge.io.envelopes.EnvelopeTag
+import hep.dataforge.storage.filestorage.FileEnvelope
+import inr.numass.NumassEnvelopeType
+import java.io.IOException
+import java.nio.ByteBuffer
+import java.nio.channels.FileChannel
+import java.nio.file.Path
+import java.nio.file.StandardOpenOption.READ
+
+class NumassFileEnvelope private constructor(path: Path, readOnly: Boolean) : FileEnvelope(path, readOnly) {
+
+    override fun buildTag(): EnvelopeTag {
+        return NumassEnvelopeType.LegacyTag()
+    }
+
+    companion object {
+
+        val LEGACY_START_SEQUENCE = byteArrayOf('#'.toByte(), '!'.toByte())
+        val LEGACY_END_SEQUENCE = byteArrayOf('!'.toByte(), '#'.toByte(), '\r'.toByte(), '\n'.toByte())
+
+        fun open(path: Path, readOnly: Boolean): FileEnvelope {
+            //        if (!Files.exists(path)) {
+            //            throw new RuntimeException("File envelope does not exist");
+            //        }
+
+            try {
+                FileChannel.open(path, READ).use { channel ->
+                    val buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, 2)
+                    return if (buffer.compareTo(ByteBuffer.wrap(LEGACY_START_SEQUENCE)) == 0) {
+                        NumassFileEnvelope(path, readOnly)
+                    } else {
+                        FileEnvelope.open(path, readOnly)
+                    }
+                }
+            } catch (e: IOException) {
+                throw RuntimeException("Failed to open file envelope", e)
+            }
+
+        }
+    }
+}
--- a/numass-core/src/main/kotlin/inr/numass/data/storage/NumassDataLoader.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/storage/NumassDataLoader.kt
@ -112,7 +112,7 @@ class NumassDataLoader(
    }

    override fun getStartTime(): Instant {
-        return meta.optValue("start_time").map<Instant> { it.timeValue() }.orElseGet { super.getStartTime() }
+        return meta.optValue("start_time").map<Instant> { it.timeValue() }.orElseGet { super.startTime }
    }

    override val isOpen: Boolean
--- a/numass-core/src/main/kotlin/inr/numass/data/storage/ProtoNumassPoint.kt
+++ b/numass-core/src/main/kotlin/inr/numass/data/storage/ProtoNumassPoint.kt
@ -1,5 +1,7 @@
 package inr.numass.data.storage

+import hep.dataforge.context.Context
+import hep.dataforge.context.Global
 import hep.dataforge.io.envelopes.Envelope
 import hep.dataforge.meta.Meta
 import inr.numass.data.NumassProto
@ -30,14 +32,14 @@ class ProtoNumassPoint(private val envelope: Envelope) : NumassPoint {
            throw RuntimeException("Failed to read point via protobuf")
        }

-    override fun getBlocks(): Stream<NumassBlock> {
-        return point.channelsList.stream()
+    override val blocks: Stream<NumassBlock>
+        get() = point.channelsList.stream()
                .flatMap { channel ->
                    channel.blocksList.stream()
                            .map { block -> ProtoBlock(channel.num.toInt(), block, meta) }
                            .sorted(Comparator.comparing<ProtoBlock, Instant> { it.startTime })
                }
-    }
+

    override fun getMeta(): Meta {
        return envelope.meta
@ -48,6 +50,10 @@ class ProtoNumassPoint(private val envelope: Envelope) : NumassPoint {
            return ProtoNumassPoint(NumassFileEnvelope.open(path, true))
        }

+        fun readFile(path: String, context: Context = Global): ProtoNumassPoint {
+            return readFile(context.io.getFile(path).absolutePath)
+        }
+
        fun ofEpochNanos(nanos: Long): Instant {
            val seconds = Math.floorDiv(nanos, 1e9.toInt().toLong())
            val reminder = (nanos % 1e9).toInt()
@ -56,32 +62,31 @@ class ProtoNumassPoint(private val envelope: Envelope) : NumassPoint {
    }
 }

-class ProtoBlock(val channel: Int, private val block: NumassProto.Point.Channel.Block, private val meta: Meta) : NumassBlock {
+class ProtoBlock(override val channel: Int, private val block: NumassProto.Point.Channel.Block, private val meta: Meta) : NumassBlock {

-    override fun getStartTime(): Instant {
-        return ProtoNumassPoint.ofEpochNanos(block.time)
-    }
+    override val startTime: Instant
+        get() = ProtoNumassPoint.ofEpochNanos(block.time)

-    override fun getLength(): Duration {
-        return Duration.ofNanos((meta.getDouble("params.b_size") / meta.getDouble("params.sample_freq") * 1e9).toLong())
-    }
+    override val length: Duration
+        get() = Duration.ofNanos((meta.getDouble("params.b_size") / meta.getDouble("params.sample_freq") * 1e9).toLong())

-    override fun getEvents(): Stream<NumassEvent> {
-        val blockTime = startTime
-        if (block.hasEvents()) {
+
+    override val events: Stream<NumassEvent>
+        get() = if (block.hasEvents()) {
            val events = block.events
-            return IntStream.range(0, events.timesCount).mapToObj { i -> NumassEvent(events.getAmplitudes(i).toShort(), blockTime, events.getTimes(i)) }
+            IntStream.range(0, events.timesCount).mapToObj { i -> NumassEvent(events.getAmplitudes(i).toShort(), events.getTimes(i), this) }
        } else {
-            return Stream.empty()
+            Stream.empty()
        }
-    }

-    override fun getFrames(): Stream<NumassFrame> {
-        val tickSize = Duration.ofNanos((1e9 / meta.getInt("params.sample_freq")).toLong())
-        return block.framesList.stream().map { frame ->
-            val time = startTime.plusNanos(frame.time)
-            val data = frame.data.asReadOnlyByteBuffer()
-            NumassFrame(time, tickSize, data.asShortBuffer())
+
+    override val frames: Stream<NumassFrame>
+        get() {
+            val tickSize = Duration.ofNanos((1e9 / meta.getInt("params.sample_freq")).toLong())
+            return block.framesList.stream().map { frame ->
+                val time = startTime.plusNanos(frame.time)
+                val data = frame.data.asReadOnlyByteBuffer()
+                NumassFrame(time, tickSize, data.asShortBuffer())
+            }
        }
-    }
 }
--- a/numass-main/src/main/groovy/inr/numass/scripts/times/Histogram.groovy
+++ b/numass-main/src/main/groovy/inr/numass/scripts/times/Histogram.groovy
@ -28,7 +28,7 @@ new GrindShell(ctx).eval {

    def table = new SimpleHistogram([0d, 0d] as Double[], [2d, 100d] as Double[])
            .fill(new TimeAnalyzer().getEventsWithDelay(point, Meta.empty()).map {
-        [it.value / 1000, it.key.chanel] as Double[]
+        [it.value / 1000, it.key.amp] as Double[]
    }).asTable()

    ColumnedDataWriter.writeTable(System.out, table, "hist")
--- a/numass-main/src/main/java/inr/numass/actions/MonitorCorrectAction.java
+++ b/numass-main/src/main/java/inr/numass/actions/MonitorCorrectAction.java
@ -200,7 +200,7 @@ public class MonitorCorrectAction extends OneToOneAction<Table, Table> {
    }

    private boolean isMonitorPoint(double monitor, Values point) {
-        return point.getValue(NumassPoint.HV_KEY).doubleValue() == monitor;
+        return point.getValue(NumassPoint.Companion.getHV_KEY()).doubleValue() == monitor;
    }

    private Instant getTime(Values point) {
--- a/numass-main/src/main/java/inr/numass/utils/NMEventGenerator.java
+++ b/numass-main/src/main/java/inr/numass/utils/NMEventGenerator.java
@ -67,8 +67,8 @@ public class NMEventGenerator {
 //    public void loadSpectrum(RawNMPoint point, int minChanel, int maxChanel) {
 //        List<Short> shorts = new ArrayList<>();
 //        point.getEvents().stream()
-//                .filter((event) -> ((event.getChanel() > minChanel) && (event.getChanel() < maxChanel)))
-//                .forEach((event) -> shorts.add(event.getChanel()));
+//                .filter((event) -> ((event.getAmp() > minChanel) && (event.getAmp() < maxChanel)))
+//                .forEach((event) -> shorts.add(event.getAmp()));
 //        double[] doubles = new double[shorts.size()];
 //
 //        for (int i = 0; i < shorts.size(); i++) {
--- a/numass-main/src/main/java/inr/numass/utils/PileUpSimulator.java
+++ b/numass-main/src/main/java/inr/numass/utils/PileUpSimulator.java
@ -120,7 +120,7 @@ public class PileUpSimulator {
            //not counting double pileups
            if (generated.size() > 1) {
                double delay = (next.getTimeOffset() - lastRegisteredTime) / us; //time between events in microseconds
-                if (nextEventRegistered(next.getChanel(), delay)) {
+                if (nextEventRegistered(next.getAmp(), delay)) {
                    //just register new event
                    registered.add(next);
                    lastRegisteredTime = next.getTimeOffset();
@ -131,7 +131,7 @@ public class PileUpSimulator {
                        doublePileup.incrementAndGet();
                    } else {
                        //pileup event
-                        short newChannel = pileupChannel(delay, next.getChanel(), next.getChanel());
+                        short newChannel = pileupChannel(delay, next.getAmp(), next.getAmp());
                        NumassEvent newEvent = new NumassEvent(newChannel, next.getBlockTime(), next.getTimeOffset());
                        //replace already registered event by event with new channel
                        registered.remove(registered.size() - 1);
--- a/numass-main/src/main/kotlin/inr/numass/scripts/Correlation.kt
+++ b/numass-main/src/main/kotlin/inr/numass/scripts/Correlation.kt
@ -32,7 +32,7 @@ private fun correlation(sequence: Stream<NumassEvent>): Double {
    val amplitudes: MutableList<Double> = ArrayList()
    val times: MutableList<Double> = ArrayList()
    sequence.forEach {
-        amplitudes.add(it.chanel.toDouble())
+        amplitudes.add(it.amp.toDouble())
        times.add(it.timeOffset.toDouble())
    }

--- a/numass-main/src/main/kotlin/inr/numass/scripts/tristan/AnalyzeTristan.kt
+++ b/numass-main/src/main/kotlin/inr/numass/scripts/tristan/AnalyzeTristan.kt
@ -0,0 +1,34 @@
+package inr.numass.scripts.tristan
+
+import hep.dataforge.meta.Meta
+import hep.dataforge.tables.Table
+import hep.dataforge.values.Values
+import inr.numass.data.analyzers.NumassAnalyzer
+import inr.numass.data.api.NumassBlock
+import inr.numass.data.api.NumassEvent
+import inr.numass.data.api.NumassSet
+import inr.numass.data.storage.ProtoNumassPoint
+import java.util.stream.Stream
+
+fun main(args: Array<String>) {
+    val analyzer = object : NumassAnalyzer{
+        override fun analyze(block: NumassBlock, config: Meta): Values {
+            TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        }
+
+        override fun getEvents(block: NumassBlock, meta: Meta): Stream<NumassEvent> {
+            TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        }
+
+        override fun analyzeSet(set: NumassSet, config: Meta): Table {
+            TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        }
+
+    }
+
+
+    val file = ProtoNumassPoint.readFile("D:\\Work\\Numass\\data\\TRISTAN_11_2017\\df\\gun_16_19.df ")
+    val events = Sequence { file.events.iterator() }.sortedBy { it.time }
+
+
+}