Make the java http server a gradle project (#26)

Author: GuillaumeTaffin

examples/README.md

@@ -32,9 +32,7 @@ This example uses `Ktor` to serve the front end.
 
 ## Java HTTP Server
 
-This example uses the plain Java `HttpServer` to serve the front end. ([code](java-httpserver/server.kt))
+This example uses the plain Java `HttpServer` to serve the front end.
 
-```shell
-cd ./java-httpserver ; jbang server.kt ; cd ..
-```
+- [Java HTTP Server](java-httpserver/src/main/kotlin/dev/datastar/kotlin/examples/httpserver/Application.kt): Demonstrates integration with Java HTTP Server.
 

examples/java-httpserver/build.gradle.kts

@@ -0,0 +1,23 @@
+plugins {
+    id("org.jetbrains.kotlin.jvm") version "2.2.0"
+    application
+}
+
+repositories {
+    mavenCentral()
+}
+
+application {
+    mainClass = "dev.datastar.kotlin.examples.httpserver.ApplicationKt"
+}
+
+dependencies {
+    implementation("dev.data-star.kotlin:kotlin-sdk:1.0.0-RC1")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.10.2")
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}

examples/java-httpserver/server.kt renamed to examples/java-httpserver/src/main/kotlin/dev/datastar/kotlin/examples/httpserver/Application.kt

@@ -1,19 +1,14 @@
+package dev.datastar.kotlin.examples.httpserver
+
 import com.sun.net.httpserver.HttpExchange
 import com.sun.net.httpserver.HttpServer
 import dev.datastar.kotlin.sdk.Response
 import dev.datastar.kotlin.sdk.ServerSentEventGenerator
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.runBlocking
-import java.io.File
 import java.net.InetSocketAddress
 import java.util.concurrent.Executors
 
-///usr/bin/env jbang "$0" "$@" ; exit $?
-//JAVA 21
-//KOTLIN 2.2.0
-//DEPS dev.data-star.kotlin:kotlin-sdk:1.0.0-RC1
-//DEPS org.jetbrains.kotlinx:kotlinx-coroutines-core:1.10.2
-
 
 fun main(): Unit = server().run {
     start()
@@ -29,9 +24,9 @@ fun server(
 
     executor = Executors.newVirtualThreadPerTaskExecutor()
 
-    val counterPage = File(
-        "../front/counter.html"
-    ).readBytes()
+    val counterPage = object {}.javaClass.classLoader.getResource(
+        "counter.html"
+    )!!.readBytes()
 
     createContext("/") { exchange ->
         exchange.responseHeaders.add("Content-Type", "text/html")

examples/front/counter.html renamed to examples/java-httpserver/src/main/resources/counter.html

@@ -11,3 +11,4 @@ includeBuild("examples/spring/spring-webflux-example")
 includeBuild("examples/quarkus/quarkus-rest-example")
 includeBuild("examples/quarkus/quarkus-qute-example")
 includeBuild("examples/ktor/ktor-example")
+includeBuild("examples/java-httpserver")