Implement a Java/Kotlin client.

Clients/Java/sample/build.gradle.kts

@@ -0,0 +1,27 @@
+plugins {
+  application
+
+  kotlin("jvm")
+  kotlin("plugin.serialization")
+}
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  implementation("org.jetbrains.kotlin:kotlin-bom")
+  implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+
+  implementation(rootProject)
+}
+
+java {
+  val javaVersion = JavaVersion.toVersion(17)
+  sourceCompatibility = javaVersion
+  targetCompatibility = javaVersion
+}
+
+application {
+  mainClass.set("gay.pizza.stable.diffusion.sample.MainKt")
+}

Clients/Java/sample/src/main/kotlin/gay/pizza/stable/diffusion/sample/main.kt

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+package gay.pizza.stable.diffusion.sample
+
+import gay.pizza.stable.diffusion.StableDiffusion.GenerateImagesRequest
+import gay.pizza.stable.diffusion.StableDiffusion.ListModelsRequest
+import gay.pizza.stable.diffusion.StableDiffusion.LoadModelRequest
+import gay.pizza.stable.diffusion.StableDiffusionRpcClient
+import io.grpc.ManagedChannelBuilder
+import kotlin.system.exitProcess
+
+fun main() {
+  val channel = ManagedChannelBuilder
+    .forAddress("127.0.0.1", 4546)
+    .usePlaintext()
+    .build()
+
+  val client = StableDiffusionRpcClient(channel)
+  val modelListResponse = client.modelServiceBlocking.listModels(ListModelsRequest.getDefaultInstance())
+  if (modelListResponse.modelsList.isEmpty()) {
+    println("no available models")
+    exitProcess(0)
+  }
+  println("available models:")
+  for (model in modelListResponse.modelsList) {
+    println("  model ${model.name} attention=${model.attention} loaded=${model.isLoaded}")
+  }
+
+  val model = modelListResponse.modelsList.random()
+  if (!model.isLoaded) {
+    println("loading model ${model.name}...")
+    client.modelServiceBlocking.loadModel(LoadModelRequest.newBuilder().apply {
+      modelName = model.name
+    }.build())
+  } else {
+    println("using model ${model.name}...")
+  }
+
+  println("generating images...")
+
+  val generateImagesResponse = client.imageGenerationServiceBlocking.generateImage(GenerateImagesRequest.newBuilder().apply {
+    modelName = model.name
+    imageCount = 1
+    prompt = "cat"
+    negativePrompt = "bad, low quality, nsfw"
+  }.build())
+
+  println("generated ${generateImagesResponse.imagesCount} images")
+
+  channel.shutdownNow()
+}