Working Server server provider.

demo/sat-demo/build.gradle.kts

@@ -1,24 +1,59 @@
 plugins {
     id("ru.mipt.npm.mpp")
+    application
 }
 
-val kvisionVersion: String = "3.16.2"
+
+group = "ru.mipt.npm"
+
+//val kvisionVersion: String = "3.16.2"
 
 kscience{
+    useSerialization{
+        json()
+    }
     application()
 }
 
+val ktorVersion: String by rootProject.extra
+
 kotlin {
+    afterEvaluate {
+        val jsBrowserDistribution by tasks.getting
+
+        jvm {
+            withJava()
+            compilations[org.jetbrains.kotlin.gradle.plugin.KotlinCompilation.Companion.MAIN_COMPILATION_NAME]?.apply {
+                tasks.getByName<ProcessResources>(processResourcesTaskName) {
+                    dependsOn(jsBrowserDistribution)
+                    afterEvaluate {
+                        from(jsBrowserDistribution)
+                    }
+                }
+            }
+
+        }
+    }
+
     sourceSets {
         commonMain {
             dependencies {
                 implementation(project(":visionforge-solid"))
             }
         }
+        jvmMain {
+            dependencies {
+                implementation(project(":visionforge-server"))
+            }
+        }
         jsMain {
             dependencies {
                 implementation(project(":visionforge-threejs"))
             }
         }
     }
-}
+}
+
+application {
+    mainClass.set("ru.mipt.npm.sat.SatServerKt")
+}

demo/sat-demo/src/jsMain/kotlin/ru/mipt/npm/sat/SatDemoApp.kt

@@ -1,34 +1,40 @@
 package ru.mipt.npm.sat
 
-import hep.dataforge.Application
 import hep.dataforge.context.Global
-import hep.dataforge.meta.invoke
+import hep.dataforge.vision.client.VisionClient
-import hep.dataforge.startApplication
+import hep.dataforge.vision.client.fetchAndRenderAllVisions
 import hep.dataforge.vision.solid.three.ThreePlugin
-import hep.dataforge.vision.solid.three.render
+import kotlinx.browser.window
-import kotlinx.browser.document
-import org.w3c.dom.HTMLElement
 
-private class SatDemoApp : Application {
+//private class SatDemoApp : Application {
-
+//
-    override fun start(state: Map<String, Any>) {
+//    override fun start(state: Map<String, Any>) {
-        val element = document.getElementById("canvas") as? HTMLElement
+//        val element = document.getElementById("canvas") as? HTMLElement
-            ?: error("Element with id 'canvas' not found on page")
+//            ?: error("Element with id 'canvas' not found on page")
-        val three = Global.plugins.fetch(ThreePlugin)
+//        val three = Global.plugins.fetch(ThreePlugin)
-        val sat = visionOfSatellite(
+//
-            ySegments = 3,
+//        val sat = visionOfSatellite(
-        )
+//            ySegments = 3,
-        three.render(element, sat){
+//        )
-            minSize = 500
+//        three.render(element, sat){
-            axes{
+//            minSize = 500
-                size = 500.0
+//            axes{
-                visible = true
+//                size = 500.0
-            }
+//                visible = true
-        }
+//            }
-    }
+//        }
-
+//    }
-}
+//
+//}
+//
+//fun main() {
+//    startApplication(::SatDemoApp)
+//}
 
 fun main() {
-    startApplication(::SatDemoApp)
+    //Loading three-js renderer
+    Global.plugins.load(ThreePlugin)
+    window.onload = {
+        Global.plugins.fetch(VisionClient).fetchAndRenderAllVisions()
+    }
 }

demo/sat-demo/src/jvmMain/kotlin/ru/mipt/npm/sat/satServer.kt

@@ -0,0 +1,35 @@
+package ru.mipt.npm.sat
+
+
+import hep.dataforge.context.Global
+import hep.dataforge.names.asName
+import hep.dataforge.vision.server.visionModule
+import hep.dataforge.vision.solid.SolidManager
+import io.ktor.server.cio.CIO
+import io.ktor.server.engine.embeddedServer
+import io.ktor.util.KtorExperimentalAPI
+import kotlinx.html.script
+
+@OptIn(KtorExperimentalAPI::class)
+fun main() {
+    val sat = visionOfSatellite(
+        ySegments = 3,
+    )
+
+    val context = Global.context("SAT"){
+        plugin(SolidManager)
+    }
+
+    embeddedServer(CIO, 8080, host = "localhost"){
+        visionModule(context).apply {
+            header {
+                script {
+                    src = "sat-demo.js"
+                }
+            }
+            page {
+                vision("main".asName(), sat)
+            }
+        }
+    }.start(wait = true)
+}

playground/build.gradle.kts

@@ -12,16 +12,30 @@ repositories{
 }
 
 kotlin {
+    jvm()
     js(IR) {
-        browser {}
+        browser {
+        }
+        binaries.executable()
     }
 
     sourceSets {
         commonMain {
             dependencies {
-                api(project(":visionforge-solid"))
+                implementation(project(":visionforge-solid"))
-                api(project(":visionforge-gdml"))
+                implementation(project(":visionforge-gdml"))
-                api(project(":ui:bootstrap"))
+
+            }
+        }
+        val jsMain by getting{
+            dependencies {
+                implementation(project(":ui:bootstrap"))
+            }
+        }
+
+        val jvmMain by getting{
+            dependencies {
+                implementation("com.github.Ricky12Awesome:json-schema-serialization:0.6.6")
             }
         }
     }

playground/src/jvmMain/kotlin/hep/dataforge/vision/solid/generateSchema.kt

@@ -1,4 +1,22 @@
-//package hep.dataforge.vision.solid
+package hep.dataforge.vision.solid
+
+import com.github.ricky12awesome.jss.encodeToSchema
+import kotlinx.serialization.json.Json
+
+fun main() {
+    val schema = Json {
+        serializersModule = SolidManager.serializersModuleForSolids
+        prettyPrintIndent = "  "
+        prettyPrint = true
+        ignoreUnknownKeys = true
+        isLenient = true
+        coerceInputValues = true
+        encodeDefaults = true
+    }.encodeToSchema(SolidGroup.serializer(), generateDefinitions = false)
+    println(schema)
+}
+
+
 //
 //import hep.dataforge.meta.JSON_PRETTY
 //import kotlinx.serialization.*

visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/VisionManager.kt

@@ -54,6 +54,7 @@ public class VisionManager(meta: Meta) : AbstractPlugin(meta) {
 
         private val defaultSerialModule: SerializersModule = SerializersModule {
             polymorphic(Vision::class) {
+                default { VisionBase.serializer() }
                 subclass(VisionBase.serializer())
                 subclass(VisionGroupBase.serializer())
             }

visionforge-core/src/commonMain/kotlin/hep/dataforge/vision/html/HtmlOutputScope.kt

@@ -63,5 +63,7 @@ public abstract class HtmlOutputScope<R, V : Vision>(
     public companion object {
         public const val OUTPUT_CLASS: String = "visionforge-output"
         public const val OUTPUT_NAME_ATTRIBUTE: String = "data-output-name"
+        public const val OUTPUT_ENDPOINT_ATTRIBUTE: String = "data-output-endpoint"
+        public const val DEFAULT_ENDPOINT: String = "."
     }
 }

visionforge-core/src/jsMain/kotlin/hep/dataforge/vision/client/ClientVisionManager.kt

@@ -1,43 +0,0 @@
-package hep.dataforge.vision.client
-
-import hep.dataforge.context.Context
-import hep.dataforge.context.Global
-import hep.dataforge.vision.VisionManager
-import hep.dataforge.vision.html.HtmlOutputScope
-import kotlinx.browser.window
-import org.w3c.dom.Element
-import org.w3c.dom.get
-import org.w3c.dom.url.URL
-
-@JsExport
-public class ClientVisionManager {
-    private val visionForgeContext: Context = Global.context("client") {
-        plugin(VisionManager)
-    }
-
-    private val visionManager: VisionManager = visionForgeContext.plugins.fetch(VisionManager)
-
-    /**
-     * Up-going tree traversal in search for endpoint attribute
-     */
-    private fun resolveEndpoint(element: Element?): String {
-        if(element == null) return DEFAULT_ENDPOINT
-        val attribute = element.attributes[OUTPUT_ENDPOINT_ATTRIBUTE]
-        return attribute?.value ?: resolveEndpoint(element.parentElement)
-    }
-
-    public fun renderVision(element: Element){
-        if(!element.classList.contains(HtmlOutputScope.OUTPUT_CLASS)) error("The element $element is not an output element")
-        val endpoint = URL(resolveEndpoint(element))
-        window.fetch("$endpoint/vision").then {response->
-            TODO()
-        }
-    }
-
-    public companion object {
-        public const val OUTPUT_ENDPOINT_ATTRIBUTE: String = "data-output-endpoint"
-        public const val DEFAULT_ENDPOINT: String = ".."
-    }
-}
-
-

visionforge-core/src/jsMain/kotlin/hep/dataforge/vision/client/VisionClient.kt

@@ -0,0 +1,124 @@
+package hep.dataforge.vision.client
+
+import hep.dataforge.context.*
+import hep.dataforge.meta.Meta
+import hep.dataforge.vision.Vision
+import hep.dataforge.vision.VisionManager
+import hep.dataforge.vision.html.HtmlOutputScope
+import hep.dataforge.vision.html.HtmlOutputScope.Companion.OUTPUT_ENDPOINT_ATTRIBUTE
+import hep.dataforge.vision.html.HtmlOutputScope.Companion.OUTPUT_NAME_ATTRIBUTE
+import kotlinx.browser.document
+import kotlinx.browser.window
+import org.w3c.dom.Element
+import org.w3c.dom.WebSocket
+import org.w3c.dom.asList
+import org.w3c.dom.get
+import org.w3c.dom.url.URL
+import kotlin.reflect.KClass
+
+public class VisionClient : AbstractPlugin() {
+    override val tag: PluginTag get() = Companion.tag
+    private val visionManager: VisionManager by require(VisionManager)
+
+    /**
+     * Up-going tree traversal in search for endpoint attribute
+     */
+    private fun resolveEndpoint(element: Element?): String {
+        if (element == null) return window.location.href
+        val attribute = element.attributes[OUTPUT_ENDPOINT_ATTRIBUTE]
+        return attribute?.value ?: resolveEndpoint(element.parentElement)
+    }
+
+    private fun resolveName(element: Element): String? {
+        val attribute = element.attributes[OUTPUT_NAME_ATTRIBUTE]
+        return attribute?.value
+    }
+
+    private fun getRenderers() = context.gather<ElementVisionRenderer>(ElementVisionRenderer.TYPE).values
+
+    public fun findRendererFor(vision: Vision): ElementVisionRenderer? = getRenderers().maxByOrNull { it.rateVision(vision) }
+
+    /**
+     * Fetch from server and render a vision, described in a given with [HtmlOutputScope.OUTPUT_CLASS] class.
+     */
+    public fun fetchAndRenderVision(element: Element, requestUpdates: Boolean = true) {
+        val name = resolveName(element) ?: error("The element is not a vision output")
+        console.info("Found DF output with name $name")
+        if (!element.classList.contains(HtmlOutputScope.OUTPUT_CLASS)) error("The element $element is not an output element")
+        val endpoint = resolveEndpoint(element)
+        console.info("Vision server is resolved to $endpoint")
+        val fetchUrl = URL(endpoint).apply {
+            searchParams.append("name", name)
+            pathname += "/vision"
+        }
+        window.fetch(fetchUrl).then { response ->
+            if (response.ok) {
+                response.text().then { text ->
+                    val vision = visionManager.jsonFormat.decodeFromString(Vision.serializer(), text)
+
+                    val renderer = findRendererFor(vision) ?: error("Could nof find renderer for $vision")
+                    renderer.render(element, vision)
+                    if (requestUpdates) {
+                        val wsUrl = URL(endpoint).apply {
+                            pathname += "/ws"
+                            protocol = "ws"
+                            searchParams.append("name", name)
+                        }
+                        val ws = WebSocket(wsUrl.toString()).apply {
+                            onmessage = { messageEvent ->
+                                val stringData: String? = messageEvent.data as? String
+                                if (stringData != null) {
+                                    val update = visionManager.jsonFormat.decodeFromString(Vision.serializer(), text)
+                                    vision.update(update)
+                                } else {
+                                    console.error("WebSocket message data is not a string")
+                                }
+                            }
+                            onopen = {
+                                console.info("WebSocket update channel established for output '$name'")
+                            }
+                            onclose = {
+                                console.info("WebSocket update channel closed for output '$name'")
+                            }
+                            onerror = {
+                                console.error("WebSocket update channel error for output '$name'")
+                            }
+                        }
+
+                    }
+                }
+            } else {
+                console.error("Failed to fetch initial vision state from $endpoint")
+            }
+
+        }
+    }
+
+    public companion object : PluginFactory<VisionClient> {
+
+        override fun invoke(meta: Meta, context: Context): VisionClient = VisionClient()
+
+        override val tag: PluginTag = PluginTag(name = "vision.client", group = PluginTag.DATAFORGE_GROUP)
+
+        override val type: KClass<out VisionClient> = VisionClient::class
+    }
+}
+
+/**
+ * Fetch and render visions for all elements with [HtmlOutputScope.OUTPUT_CLASS] class inside given [element].
+ */
+public fun VisionClient.fetchVisionsInChildren(element: Element, requestUpdates: Boolean = true) {
+    val elements = element.getElementsByClassName(HtmlOutputScope.OUTPUT_CLASS)
+    console.info("Finished search for outputs. Found ${elements.length} items")
+    elements.asList().forEach { child ->
+        fetchAndRenderVision(child, requestUpdates)
+    }
+}
+
+/**
+ * Fetch visions from the server for all elements with [HtmlOutputScope.OUTPUT_CLASS] class in the document body
+ */
+public fun VisionClient.fetchAndRenderAllVisions(requestUpdates: Boolean = true){
+    val element = document.body ?: error("Document does not have a body")
+    fetchVisionsInChildren(element, requestUpdates)
+}

visionforge-core/src/jsMain/kotlin/hep/dataforge/vision/client/elementOutput.kt

@@ -1,7 +1,9 @@
 package hep.dataforge.vision.client
 
+import hep.dataforge.meta.DFExperimental
 import hep.dataforge.names.Name
 import hep.dataforge.names.toName
+import hep.dataforge.provider.Type
 import hep.dataforge.vision.Vision
 import hep.dataforge.vision.html.BindingHtmlOutputScope
 import hep.dataforge.vision.html.HtmlOutputScope
@@ -10,18 +12,38 @@ import kotlinx.browser.document
 import kotlinx.html.TagConsumer
 import org.w3c.dom.*
 
-public interface ElementVisionRenderer<in V : Vision> {
+@Type(ElementVisionRenderer.TYPE)
-    public fun render(element: Element, vision: V): Unit
+public interface ElementVisionRenderer {
-}
 
-public fun <V : Vision> Map<String, V>.bind(renderer: ElementVisionRenderer<V>) {
+    /**
-    forEach { (id, vision) ->
+     * Give a [vision] integer rating based on this renderer capabilities. [ZERO_RATING] or negative values means that this renderer
-        val element = document.getElementById(id) ?: error("Could not find element with id $id")
+     * can't process a vision. The value of [DEFAULT_RATING] used for default renderer. Specialized renderers could specify
-        renderer.render(element, vision)
+     * higher value in order to "steal" rendering job
+     */
+    public fun rateVision(vision: Vision): Int
+
+    /**
+     * Display the [vision] inside a given [element] replacing its current content
+     */
+    public fun render(element: Element, vision: Vision): Unit
+
+    public companion object {
+        public const val TYPE: String = "elementVisionRenderer"
+        public const val ZERO_RATING: Int = 0
+        public const val DEFAULT_RATING: Int = 10
     }
 }
 
-public fun <V : Vision> Element.renderVisions(renderer: ElementVisionRenderer<V>, visionProvider: (Name) -> V?) {
+@DFExperimental
+public fun Map<String, Vision>.bind(rendererFactory: (Vision) -> ElementVisionRenderer) {
+    forEach { (id, vision) ->
+        val element = document.getElementById(id) ?: error("Could not find element with id $id")
+        rendererFactory(vision).render(element, vision)
+    }
+}
+
+@DFExperimental
+public fun Element.renderAllVisions(visionProvider: (Name) -> Vision, rendererFactory: (Vision) -> ElementVisionRenderer) {
     val elements = getElementsByClassName(HtmlOutputScope.OUTPUT_CLASS)
     elements.asList().forEach { element ->
         val name = element.attributes[HtmlOutputScope.OUTPUT_NAME_ATTRIBUTE]?.value
@@ -30,21 +52,19 @@ public fun <V : Vision> Element.renderVisions(renderer: ElementVisionRenderer<V>
             return@forEach
         }
         val vision = visionProvider(name.toName())
-        if (vision == null) {
+        rendererFactory(vision).render(element, vision)
-            console.error("Vision with name $name is not resolved")
-            return@forEach
-        }
-        renderer.render(element, vision)
     }
 }
 
-public fun <V : Vision> Document.renderVisions(renderer: ElementVisionRenderer<V>, visionProvider: (Name) -> V?): Unit {
+@DFExperimental
-    documentElement?.renderVisions(renderer, visionProvider)
+public fun Document.renderAllVisions(visionProvider: (Name) -> Vision, rendererFactory: (Vision) -> ElementVisionRenderer): Unit {
+    documentElement?.renderAllVisions(visionProvider,rendererFactory)
 }
 
+@DFExperimental
 public fun HtmlVisionFragment<Vision>.renderInDocument(
     root: TagConsumer<HTMLElement>,
-    renderer: ElementVisionRenderer<Vision>,
+    renderer: ElementVisionRenderer,
 ): HTMLElement = BindingHtmlOutputScope<HTMLElement, Vision>(root).apply(content).let { scope ->
     scope.finalize().apply {
         scope.bindings.forEach { (name, vision) ->

visionforge-server/src/main/kotlin/hep/dataforge/vision/server/VisionServer.kt

@@ -14,6 +14,7 @@ import hep.dataforge.vision.html.*
 import hep.dataforge.vision.server.VisionServer.Companion.DEFAULT_PAGE
 import io.ktor.application.*
 import io.ktor.features.CORS
+import io.ktor.features.CallLogging
 import io.ktor.html.respondHtml
 import io.ktor.http.ContentType
 import io.ktor.http.HttpStatusCode
@@ -23,7 +24,10 @@ import io.ktor.http.content.static
 import io.ktor.http.withCharset
 import io.ktor.response.respond
 import io.ktor.response.respondText
-import io.ktor.routing.*
+import io.ktor.routing.application
+import io.ktor.routing.get
+import io.ktor.routing.route
+import io.ktor.routing.routing
 import io.ktor.server.engine.ApplicationEngine
 import io.ktor.websocket.WebSockets
 import io.ktor.websocket.webSocket
@@ -34,9 +38,12 @@ import java.awt.Desktop
 import java.net.URI
 import kotlin.time.milliseconds
 
+/**
+ * A ktor plugin container with given [routing]
+ */
 public class VisionServer internal constructor(
     private val visionManager: VisionManager,
-    private val routing: Routing,
+    private val application: Application,
     private val rootRoute: String,
 ) : Configurable {
     override val config: Config = Config()
@@ -57,7 +64,7 @@ public class VisionServer internal constructor(
         title: String,
         headers: List<HtmlFragment>,
     ): Map<Name, Vision> {
-        lateinit var result: Map<Name, Vision>
+        lateinit var visionMap: Map<Name, Vision>
 
         head {
             meta {
@@ -69,21 +76,26 @@ public class VisionServer internal constructor(
             title(title)
         }
         body {
-            result = visionFragment(visionFragment)
+//            attributes[OUTPUT_ENDPOINT_ATTRIBUTE] = if (rootRoute.endsWith("/")) {
-            script {
+//                rootRoute
-                type = "text/javascript"
+//            } else {
-
+//                "$rootRoute/"
-                val normalizedRoute = if (rootRoute.endsWith("/")) {
+//            }
-                    rootRoute
+            //Load the fragment and remember all loaded visions
-                } else {
+            visionMap = visionFragment(visionFragment)
-                    "$rootRoute/"
+//            //The script runs when all headers already with required libraries are already loaded
-                }
+//            script {
-
+//                type = "text/javascript"
-                src = TODO()//"${normalizedRoute}js/plotlyConnect.js"
+//
-            }
+//                val normalizedRoute =
+//                unsafe {
+//                    //language=JavaScript
+//                    +"fetchAndRenderAllVisions()"
+//                }
+//            }
         }
 
-        return result
+        return visionMap
     }
 
     public fun page(
@@ -102,56 +114,50 @@ public class VisionServer internal constructor(
             null
         }
 
-        routing.createRouteFromPath(rootRoute).apply {
+        application.routing {
-            route(route) {
+            route(rootRoute) {
-                //Update websocket
+                route(route) {
-                webSocket("ws") {
+                    //Update websocket
-                    val name: String = call.request.queryParameters["name"]
+                    webSocket("ws") {
-                        ?: error("Vision name is not defined in parameters")
+                        val name: String = call.request.queryParameters["name"]
+                            ?: error("Vision name is not defined in parameters")
 
-                    application.log.debug("Opened server socket for $name")
+                        application.log.debug("Opened server socket for $name")
-                    val vision: Vision = visions[name.toName()] ?: error("Plot with id='$name' not registered")
+                        val vision: Vision = visions[name.toName()] ?: error("Plot with id='$name' not registered")
-                    try {
+                        try {
-                        vision.flowChanges(this, updateInterval.milliseconds).collect {  update ->
+                            vision.flowChanges(this, updateInterval.milliseconds).collect { update ->
-                            val json = visionManager.encodeToString(update)
+                                val json = visionManager.encodeToString(update)
-                            outgoing.send(Frame.Text(json))
+                                outgoing.send(Frame.Text(json))
+                            }
+                        } catch (ex: Exception) {
+                            application.log.debug("Closed server socket for $name")
                         }
-                    } catch (ex: Exception) {
-                        application.log.debug("Closed server socket for $name")
                     }
-                }
+                    //Plots in their json representation
-                //Plots in their json representation
+                    get("vision") {
-                get("vision") {
+                        val name: String = call.request.queryParameters["name"]
-                    val name: String = call.request.queryParameters["name"]
+                            ?: error("Vision name is not defined in parameters")
-                        ?: error("Vision name is not defined in parameters")
 
-                    val vision: Vision? = visions[name.toName()]
+                        val vision: Vision? = visions[name.toName()]
-                    if (vision == null) {
+                        if (vision == null) {
-                        call.respond(HttpStatusCode.NotFound, "Vision with name '$name' not found")
+                            call.respond(HttpStatusCode.NotFound, "Vision with name '$name' not found")
-                    } else {
+                        } else {
-                        call.respondText(
+                            call.respondText(
-                            visionManager.encodeToString(vision),
+                                visionManager.encodeToString(vision),
-                            contentType = ContentType.Application.Json,
+                                contentType = ContentType.Application.Json,
-                            status = HttpStatusCode.OK
+                                status = HttpStatusCode.OK
-                        )
+                            )
-                    }
+                        }
-                }
+                    }
-                //filled pages
+                    //filled pages
-                get {
+                    get {
-//                    val origin = call.request.origin
+                        if (cachedHtml == null) {
-//                    val url = URLBuilder().apply {
+                            call.respondHtml {
-//                        protocol = URLProtocol.createOrDefault(origin.scheme)
+                                visions.putAll(buildPage(visionFragment, title, headers))
-//                        //workaround for https://github.com/ktorio/ktor/issues/1663
+                            }
-//                        host = if (origin.host.startsWith("0:")) "[${origin.host}]" else origin.host
+                        } else {
-//                        port = origin.port
+                            call.respondText(cachedHtml, ContentType.Text.Html.withCharset(Charsets.UTF_8))
-//                        encodedPath = origin.uri
-//                    }.build()
-                    if (cachedHtml == null) {
-                        call.respondHtml {
-                            visions.putAll(buildPage(visionFragment, title, headers))
                         }
-                    } else {
-                        call.respondText(cachedHtml, ContentType.Text.Html.withCharset(Charsets.UTF_8))
                     }
                 }
             }
@@ -160,7 +166,7 @@ public class VisionServer internal constructor(
 
     public fun page(
         route: String = DEFAULT_PAGE,
-        title: String = "Plotly server page '$route'",
+        title: String = "VisionForge server page '$route'",
         headers: List<HtmlFragment> = emptyList(),
         content: HtmlOutputScope<*, Vision>.() -> Unit,
     ) {
@@ -170,7 +176,6 @@ public class VisionServer internal constructor(
 
     public companion object {
         public const val DEFAULT_PAGE: String = "/"
-        public val UPDATE_MODE_KEY: Name = "update.mode".toName()
         public val UPDATE_INTERVAL_KEY: Name = "update.interval".toName()
     }
 }
@@ -190,8 +195,12 @@ public fun Application.visionModule(context: Context, route: String = DEFAULT_PA
         }
     }
 
+    if(featureOrNull(CallLogging) == null){
+        install(CallLogging)
+    }
 
-    val routing = routing {
+
+    routing {
         route(route) {
             static {
                 resources()
@@ -201,7 +210,7 @@ public fun Application.visionModule(context: Context, route: String = DEFAULT_PA
 
     val visionManager = context.plugins.fetch(VisionManager)
 
-    return VisionServer(visionManager, routing, route)
+    return VisionServer(visionManager, this, route)
 }
 
 public fun ApplicationEngine.show() {

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Box.kt

@@ -12,7 +12,7 @@ public class Box(
     public val xSize: Float,
     public val ySize: Float,
     public val zSize: Float
-) : BasicSolid(), GeometrySolid {
+) : SolidBase(), GeometrySolid {
 
     //TODO add helper for color configuration
     override fun <T : Any> toGeometry(geometryBuilder: GeometryBuilder<T>) {

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Composite.kt

@@ -19,7 +19,7 @@ public class Composite(
     public val compositeType: CompositeType,
     public val first: Solid,
     public val second: Solid
-) : BasicSolid(), Solid, VisionGroup {
+) : SolidBase(), Solid, VisionGroup {
 
     init {
         first.parent = this

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/ConeSegment.kt

@@ -18,7 +18,7 @@ public class ConeSegment(
     public var upperRadius: Float,
     public var startAngle: Float = 0f,
     public var angle: Float = PI2
-) : BasicSolid(), GeometrySolid {
+) : SolidBase(), GeometrySolid {
 
     override fun <T : Any> toGeometry(geometryBuilder: GeometryBuilder<T>) {
         val segments = detail ?: 8

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Convex.kt

@@ -7,7 +7,7 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 @SerialName("solid.convex")
-public class Convex(public val points: List<Point3D>) : BasicSolid(), Solid
+public class Convex(public val points: List<Point3D>) : SolidBase(), Solid
 
 public inline fun VisionContainerBuilder<Solid>.convex(name: String = "", action: ConvexBuilder.() -> Unit = {}): Convex =
     ConvexBuilder().apply(action).build().also { set(name, it) }

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Extruded.kt

@@ -39,7 +39,7 @@ public data class Layer(var x: Float, var y: Float, var z: Float, var scale: Flo
 public class Extruded(
     public var shape: List<Point2D> = ArrayList(),
     public var layers: MutableList<Layer> = ArrayList()
-) : BasicSolid(), GeometrySolid {
+) : SolidBase(), GeometrySolid {
 
     public fun shape(block: Shape2DBuilder.() -> Unit) {
         this.shape = Shape2DBuilder().apply(block).build()

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/PolyLine.kt

@@ -12,7 +12,7 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 @SerialName("solid.line")
-public class PolyLine(public var points: List<Point3D>) : BasicSolid(), Solid {
+public class PolyLine(public var points: List<Point3D>) : SolidBase(), Solid {
 
     //var lineType by string()
     public var thickness: Number by props().number(1.0, key = SolidMaterial.MATERIAL_KEY + THICKNESS_KEY)

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/SolidBase.kt

@@ -12,7 +12,7 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 @SerialName("solid")
-public open class BasicSolid : VisionBase(), Solid {
+public open class SolidBase : VisionBase(), Solid {
     override val descriptor: NodeDescriptor get() = Solid.descriptor
 
     override var position: Point3D? = null

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/SolidLabel.kt

@@ -11,7 +11,7 @@ public class SolidLabel(
     public var text: String,
     public var fontSize: Double,
     public var fontFamily: String,
-) : BasicSolid(), Solid
+) : SolidBase(), Solid
 
 public fun VisionContainerBuilder<Solid>.label(
     text: String,

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/SolidManager.kt

@@ -7,10 +7,7 @@ import hep.dataforge.context.PluginTag
 import hep.dataforge.meta.Meta
 import hep.dataforge.names.Name
 import hep.dataforge.names.toName
-import hep.dataforge.vision.Vision
+import hep.dataforge.vision.*
-import hep.dataforge.vision.VisionGroup
-import hep.dataforge.vision.VisionGroupBase
-import hep.dataforge.vision.VisionManager
 import hep.dataforge.vision.VisionManager.Companion.VISION_SERIALIZER_MODULE_TARGET
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.modules.PolymorphicModuleBuilder
@@ -42,6 +39,7 @@ public class SolidManager(meta: Meta) : AbstractPlugin(meta) {
             subclass(Composite.serializer())
             subclass(Tube.serializer())
             subclass(Box.serializer())
+            subclass(ConeSegment.serializer())
             subclass(Convex.serializer())
             subclass(Extruded.serializer())
             subclass(PolyLine.serializer())
@@ -51,11 +49,13 @@ public class SolidManager(meta: Meta) : AbstractPlugin(meta) {
 
         public val serializersModuleForSolids: SerializersModule = SerializersModule {
             polymorphic(Vision::class) {
+                subclass(VisionBase.serializer())
                 subclass(VisionGroupBase.serializer())
                 solids()
             }
 
             polymorphic(Solid::class) {
+                default { SolidBase.serializer() }
                 solids()
             }
         }

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/SolidReference.kt

@@ -9,7 +9,7 @@ import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import kotlin.collections.set
 
-public abstract class AbstractReference : BasicSolid(), VisionGroup {
+public abstract class AbstractReference : SolidBase(), VisionGroup {
     public abstract val prototype: Solid
 
     override fun getProperty(name: Name, inherit: Boolean): MetaItem<*>? = sequence {

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Sphere.kt

@@ -16,7 +16,7 @@ public class Sphere(
     public var phi: Float = PI2,
     public var thetaStart: Float = 0f,
     public var theta: Float = PI.toFloat(),
-) : BasicSolid(), GeometrySolid {
+) : SolidBase(), GeometrySolid {
 
     override fun <T : Any> toGeometry(geometryBuilder: GeometryBuilder<T>) {
         fun point3DfromSphCoord(r: Float, theta: Float, phi: Float): Point3D {

visionforge-solid/src/commonMain/kotlin/hep/dataforge/vision/solid/Tube.kt

@@ -19,7 +19,7 @@ public class Tube(
     public var innerRadius: Float = 0f,
     public var startAngle: Float = 0f,
     public var angle: Float = PI2,
-) : BasicSolid(), GeometrySolid {
+) : SolidBase(), GeometrySolid {
 
     init {
         require(radius > 0)

visionforge-threejs/src/main/kotlin/hep/dataforge/vision/solid/three/ThreePlugin.kt

@@ -15,7 +15,7 @@ import kotlin.collections.set
 import kotlin.reflect.KClass
 import info.laht.threekt.objects.Group as ThreeGroup
 
-public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer<Solid> {
+public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer {
     override val tag: PluginTag get() = Companion.tag
 
     public val solidManager: SolidManager by require(SolidManager)
@@ -122,8 +122,19 @@ public class ThreePlugin : AbstractPlugin(), ElementVisionRenderer<Solid> {
         attach(element)
     }
 
-    override fun render(element: Element, vision: Solid) {
+    override fun content(target: String): Map<Name, Any> {
-        createCanvas(element).render(vision)
+        return when (target) {
+            ElementVisionRenderer.TYPE -> mapOf("three".asName() to this)
+            else -> super.content(target)
+        }
+    }
+
+    override fun rateVision(vision: Vision): Int {
+        return if (vision is Solid) ElementVisionRenderer.DEFAULT_RATING else ElementVisionRenderer.ZERO_RATING
+    }
+
+    override fun render(element: Element, vision: Vision) {
+        createCanvas(element).render(vision as? Solid ?: error("Only solids are rendered"))
     }
 
     public companion object : PluginFactory<ThreePlugin> {

visionforge-threejs/src/main/kotlin/hep/dataforge/vision/solid/three/ThreeVision.kt

@@ -1,11 +1,11 @@
 package hep.dataforge.vision.solid.three
 
-import hep.dataforge.vision.solid.BasicSolid
+import hep.dataforge.vision.solid.SolidBase
 import info.laht.threekt.core.Object3D
 
 /**
  * A custom visual object that has its own Three.js renderer
  */
-public abstract class ThreeVision : BasicSolid() {
+public abstract class ThreeVision : SolidBase() {
     public abstract fun render(): Object3D
 }