patching values

Server/FastKeyValueServer/build.gradle.kts

@@ -1,5 +1,7 @@
 plugins {
     kotlin("jvm") version "2.1.20"
+    id("io.ktor.plugin") version "2.3.4"
+    kotlin("plugin.serialization") version "1.9.0"
 }
 
 group = "org.calvin.erfmann"
@@ -11,6 +13,22 @@ repositories {
 
 dependencies {
     testImplementation(kotlin("test"))
+
+    // Ktor server dependencies
+    implementation("io.ktor:ktor-server-netty:2.3.4")
+    implementation("io.ktor:ktor-server-core:2.3.4")
+    implementation("io.ktor:ktor-server-content-negotiation:2.3.4")
+    implementation("io.ktor:ktor-serialization-kotlinx-json:2.3.4")
+
+    //Logging
+    implementation("ch.qos.logback:logback-classic:1.5.13")
+
+    //Ktor Websockets and CORS
+    implementation("io.ktor:ktor-server-websockets:2.3.4")
+    implementation("io.ktor:ktor-server-cors:2.3.4")
+    implementation("io.ktor:ktor-client-core:2.3.4")
+    implementation("io.ktor:ktor-client-cio:2.3.4")
+    implementation("io.ktor:ktor-client-content-negotiation:2.3.4")
 }
 
 tasks.test {
@@ -19,3 +37,23 @@ tasks.test {
 kotlin {
     jvmToolchain(23)
 }
+
+tasks.register<Jar>("fatJar") {
+    group = "build"
+    description = "Assemble a fat jar with all dependencies."
+
+    archiveClassifier.set("all")
+
+    manifest {
+        attributes["Main-Class"] = "MainKt"  // ggf. anpassen auf dein Main Package
+    }
+
+    from(sourceSets.main.get().output)
+
+    dependsOn(configurations.runtimeClasspath)
+    from({
+        configurations.runtimeClasspath.get().filter { it.name.endsWith("jar") }.map { zipTree(it) }
+    })
+
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}

Server/FastKeyValueServer/src/main/kotlin/Main.kt

@@ -1,16 +1,16 @@
 package org.calvin.erfmann
 
-//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
-// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
-fun main() {
-    val name = "Kotlin"
-    //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
-    // to see how IntelliJ IDEA suggests fixing it.
-    println("Hello, " + name + "!")
 
-    for (i in 1..5) {
+
-        //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+
-        // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+import org.calvin.erfmann.api.apiServ
-        println("i = $i")
+
-    }
+val apiServ = apiServ()
+
+fun main() {
+
+
+
+        apiServ.startServer()
+
 }

Server/FastKeyValueServer/src/main/kotlin/api/apiServ.kt

@@ -0,0 +1,55 @@
+package org.calvin.erfmann.api
+
+import io.ktor.client.HttpClient
+import io.ktor.client.HttpClientConfig
+import io.ktor.client.engine.cio.CIO
+import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.serialization.kotlinx.json.json
+import io.ktor.server.application.Application
+import io.ktor.server.application.install
+import io.ktor.server.engine.embeddedServer
+import io.ktor.server.netty.Netty
+import io.ktor.server.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.server.websocket.WebSockets
+import io.ktor.server.websocket.pingPeriod
+import io.ktor.server.websocket.timeout
+import kotlinx.serialization.json.Json
+import org.calvin.erfmann.api.plugins.configureRouting
+import org.calvin.erfmann.stuff.authService
+import org.calvin.erfmann.theGoodStuff.PoolManager
+import java.time.Duration
+
+class apiServ {
+
+
+
+
+
+    var authService = authService("password")
+    var poolManager = PoolManager()
+
+
+
+
+    fun startServer(){
+        embeddedServer(Netty, port = 9000, host = "0.0.0.0") {
+            module()
+        }.start(wait = true)
+    }
+
+    fun Application.module() {
+        install(ContentNegotiation) { // SERVER Plugin mit Alias
+            json()
+        }
+        install(WebSockets.Plugin) {
+            pingPeriod = Duration.ofSeconds(15)
+            timeout = Duration.ofSeconds(30)
+            maxFrameSize = Long.MAX_VALUE
+            masking = false
+        }
+        configureRouting(
+          authService,
+            poolManager
+        )
+    }
+}

Server/FastKeyValueServer/src/main/kotlin/api/plugins/Routing.kt

@@ -0,0 +1,31 @@
+package org.calvin.erfmann.api.plugins
+
+
+
+import io.ktor.client.HttpClient
+import io.ktor.client.engine.cio.CIO
+import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.serialization.kotlinx.json.json
+import io.ktor.server.application.Application
+import io.ktor.server.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.server.routing.routing
+import kotlinx.serialization.json.Json
+import org.calvin.erfmann.api.routes.getValue
+import org.calvin.erfmann.api.routes.helloRoutes
+import org.calvin.erfmann.api.routes.login
+import org.calvin.erfmann.api.routes.patchValue
+import org.calvin.erfmann.api.routes.setValue
+import org.calvin.erfmann.stuff.authService
+import org.calvin.erfmann.theGoodStuff.PoolManager
+
+fun Application.configureRouting(authService: authService, poolManager: PoolManager) {
+    routing {
+        helloRoutes()
+        login(authService)
+        getValue(authService, poolManager)
+        setValue(authService, poolManager)
+        patchValue(authService, poolManager)
+    }
+}
+
+

Server/FastKeyValueServer/src/main/kotlin/api/routes/getValue.kt

@@ -0,0 +1,40 @@
+package org.calvin.erfmann.api.routes
+
+import io.ktor.server.application.call
+import io.ktor.server.request.receive
+import io.ktor.server.response.respond
+import io.ktor.server.routing.Route
+import io.ktor.server.routing.get
+import io.ktor.server.routing.post
+import kotlinx.serialization.Serializable
+import org.calvin.erfmann.stuff.authService
+import org.calvin.erfmann.theGoodStuff.PoolManager
+
+@Serializable
+data class GetValueRequest(val token: String, val pool: String, val key: String,)
+
+
+fun Route.getValue(authService: authService, poolManager: PoolManager) {
+
+    get("/value") {
+        val request = call.receive<GetValueRequest>()
+
+        val isValid = authService.isTokenValid(request.token)
+        if (isValid) {
+            val pool = poolManager.getPool(request.pool)
+            if (pool != null) {
+                val value = pool.getValueValue(request.key)
+                if (value != null) {
+                    call.respond(mapOf("value" to value))
+                } else {
+                    call.respond(mapOf("error" to "Key not found"))
+                }
+            } else {
+                call.respond(mapOf("error" to "Pool not found"))
+            }
+        } else {
+            call.respond(mapOf("error" to "Invalid token"))
+        }
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/api/routes/helloRoute.kt

@@ -0,0 +1,22 @@
+package org.calvin.erfmann.api.routes
+
+import io.ktor.server.application.call
+import io.ktor.server.response.respond
+import io.ktor.server.routing.Route
+import io.ktor.server.routing.get
+import io.ktor.server.routing.route
+import kotlinx.serialization.Serializable
+
+
+
+
+fun Route.helloRoutes() {
+    route("/hello") {
+
+
+        get {
+
+            call.respond(mapOf("message" to "hallo du knecht"))
+        }
+    }
+}

Server/FastKeyValueServer/src/main/kotlin/api/routes/login.kt

@@ -0,0 +1,31 @@
+package org.calvin.erfmann.api.routes
+
+import io.ktor.server.application.call
+import io.ktor.server.request.receive
+import io.ktor.server.response.respond
+import io.ktor.server.routing.Route
+import io.ktor.server.routing.get
+import io.ktor.server.routing.post
+import io.ktor.server.routing.route
+import kotlinx.serialization.Serializable
+import org.calvin.erfmann.stuff.authService
+
+@Serializable
+data class LoginRequest(val password: String)
+
+
+fun Route.login(authService: authService) {
+
+    post("/login") {
+        val request = call.receive<LoginRequest>()
+
+        val token = authService.getToken(request.password)
+
+        if (token != null) {
+            call.respond(mapOf("token" to token))
+        } else {
+            call.respond(mapOf("error" to "Invalid password"))
+        }
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/api/routes/patchValue.kt

@@ -0,0 +1,41 @@
+package org.calvin.erfmann.api.routes
+
+import io.ktor.server.routing.patch
+
+
+
+import io.ktor.server.application.call
+import io.ktor.server.request.receive
+import io.ktor.server.response.respond
+import io.ktor.server.routing.Route
+import io.ktor.server.routing.post
+import kotlinx.serialization.Serializable
+import org.calvin.erfmann.stuff.authService
+import org.calvin.erfmann.theGoodStuff.PoolManager
+
+
+@Serializable
+data class PatchValueRequest(val token: String, val pool: String, val key: String, val value: String)
+
+
+fun Route.patchValue(authService: authService, poolManager: PoolManager) {
+
+    patch("/value") {
+        val request = call.receive<SetValueRequest>()
+
+        val isValid = authService.isTokenValid(request.token)
+
+        if (isValid) {
+            val pool = poolManager.getPool(request.pool)
+            if (pool != null) {
+                pool.setValueValue(request.key, request.value)
+                call.respond(mapOf("status" to "success"))
+            } else {
+                call.respond(mapOf("error" to "Pool not found"))
+            }
+        } else {
+            call.respond(mapOf("error" to "Invalid token"))
+        }
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/api/routes/setValue.kt

@@ -0,0 +1,38 @@
+package org.calvin.erfmann.api.routes
+
+import io.ktor.server.application.call
+import io.ktor.server.request.receive
+import io.ktor.server.response.respond
+import io.ktor.server.routing.Route
+import io.ktor.server.routing.post
+import kotlinx.serialization.Serializable
+import org.calvin.erfmann.stuff.authService
+import org.calvin.erfmann.theGoodStuff.PoolManager
+
+
+@Serializable
+data class SetValueRequest(val token: String, val pool: String, val key: String, val value: String)
+
+
+fun Route.setValue(authService: authService, poolManager: PoolManager) {
+
+    post("/value") {
+        val request = call.receive<SetValueRequest>()
+
+        val isValid = authService.isTokenValid(request.token)
+
+        if (isValid) {
+            val pool = poolManager.getPool(request.pool)
+            if (pool != null) {
+                pool.setValueValue(request.key, request.value)
+                call.respond(mapOf("status" to "success"))
+            } else {
+                poolManager.createPool(request.pool).setValueValue(request.key, request.value)
+                call.respond(mapOf("status" to "success"))
+            }
+        } else {
+            call.respond(mapOf("error" to "Invalid token"))
+        }
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/api/utils/tokenGenerator.kt

@@ -0,0 +1,18 @@
+package org.calvin.erfmann.api.utils
+
+import java.security.SecureRandom
+
+class tokenGenerator {
+    private val CHARACTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+    private val secureRandom = SecureRandom()
+
+    /**
+     * Generiert einen sicheren Token.
+     * @param length Standardmäßig 32 Zeichen, kann aber angepasst werden.
+     */
+    fun generate(length: Int = 32): String {
+        return (1..length)
+            .map { CHARACTERS[secureRandom.nextInt(CHARACTERS.length)] }
+            .joinToString("")
+    }
+}

Server/FastKeyValueServer/src/main/kotlin/stuff/authService.kt

@@ -0,0 +1,30 @@
+package org.calvin.erfmann.stuff
+
+import org.calvin.erfmann.api.utils.tokenGenerator
+
+class authService(password: String) {
+    val password: String = password
+
+    var activeTokens = mutableListOf<String>()
+
+
+
+
+
+    fun getToken(inputPassword: String): String?{
+        if (inputPassword != password){
+            return null
+        }
+        val token = tokenGenerator().generate()
+        activeTokens.add(token)
+        return token
+    }
+
+    fun isTokenValid(token: String): Boolean{
+        return activeTokens.contains(token)
+    }
+
+
+
+
+}

Server/FastKeyValueServer/src/main/kotlin/theGoodStuff/Pool.kt

@@ -0,0 +1,46 @@
+package org.calvin.erfmann.theGoodStuff
+
+
+
+class Pool(initName: String) {
+
+    var name: String = initName
+    var values: MutableMap<String, Value> = mutableMapOf()
+
+    fun getValueValue(key: String): String? {
+        val value = values[key]
+        return value?.getValueValue()
+    }
+
+    fun setValueValue(key: String, newValue: String) {
+
+
+        val value = values[key]
+        if (value != null) {
+            value.setValueValue(newValue)
+        } else {
+            values[key] = Value(key, newValue)
+        }
+    }
+
+    fun updateValueValue(key: String, newValue: String) {
+        val value = values[key]
+        if (value != null) {
+            value.setValueValue(newValue)
+        }
+    }
+
+    fun getVersion(key: String, version: Long): String? {
+        val value = values[key]
+        return value?.getVersion(version)
+    }
+
+    fun deleteValue(key: String) {
+        values.remove(key)
+    }
+
+    fun isKeyPresent(key: String): Boolean {
+        return values.containsKey(key)
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/theGoodStuff/PoolManager.kt

@@ -0,0 +1,24 @@
+package org.calvin.erfmann.theGoodStuff
+
+class PoolManager{
+    var pools: MutableMap<String, Pool> = mutableMapOf()
+
+    fun getPool(poolName: String): Pool? {
+        return pools[poolName]
+    }
+
+    fun createPool(poolName: String): Pool {
+        val pool = Pool(poolName)
+        pools[poolName] = pool
+        return pool
+    }
+
+    fun deletePool(poolName: String) {
+        pools.remove(poolName)
+    }
+
+    fun isPoolPresent(poolName: String): Boolean {
+        return pools.containsKey(poolName)
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/theGoodStuff/Value.kt

@@ -0,0 +1,38 @@
+package org.calvin.erfmann.theGoodStuff
+
+class Value(initKey: String, initValue: String) {
+
+    // Das einfachste Value Element
+
+
+    var key: String = initKey
+    var value: String = initValue
+    var lastUpdated: Long = System.currentTimeMillis()
+    var createdAt: Long = System.currentTimeMillis()
+    var lastAcccessed: Long = System.currentTimeMillis()
+    var currentVersion: Long = 0
+    var versions = mutableListOf<ValueVersion>()
+
+    fun getValueValue(): String {
+        this.lastAcccessed = System.currentTimeMillis()
+        return this.value
+    }
+
+    fun getCurrentValueVersion(): Long {
+        return this.currentVersion
+    }
+
+
+    fun setValueValue(newValue: String) {
+        versions.add(ValueVersion(this.value , this.currentVersion))
+        this.value = newValue
+        this.lastUpdated = System.currentTimeMillis()
+        this.currentVersion += 1
+    }
+
+    fun getVersion(version: Long): String? {
+        val ver = versions.find { it.version == version }
+        return ver?.getValueValue()
+    }
+
+}

Server/FastKeyValueServer/src/main/kotlin/theGoodStuff/ValueVersion.kt

@@ -0,0 +1,15 @@
+package org.calvin.erfmann.theGoodStuff
+
+class ValueVersion(initValue: String, initVersion: Long) {
+
+    // Eine Version eines Values
+
+    var value: String = initValue
+    var lastAcccessed: Long = 1
+    var version : Long = initVersion
+
+    fun getValueValue(): String {
+        this.lastAcccessed = System.currentTimeMillis()
+        return this.value
+    }
+}