sdk-java templates

.github/workflows/test.yml

@@ -7,7 +7,44 @@ on:
     branches: [ main ]
 
 jobs:
-  build:
+  build-jvm:
+    # prevent from running on forks
+    if: github.repository_owner == 'restatedev'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        jvm-version: [ 17 ]
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use JVM ${{ matrix.jvm-version }}
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.jvm-version }}
+
+      - name: Test jvm/java-blocking-http
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/java-blocking-http
+      - name: Test jvm/java-blocking-lambda
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/java-blocking-lambda
+      - name: Test jvm/kotlin-http
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/kotlin-http
+      - name: Test jvm/kotlin-lambda
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: check
+          build-root-directory: jvm/kotlin-lambda
+  build-ts:
     # prevent from running on forks
     if: github.repository_owner == 'restatedev'
     runs-on: ubuntu-latest
@@ -17,11 +54,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+
       - uses: bufbuild/buf-setup-action@v1
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
+
       - run: npm ci --prefix typescript
       - run: npm run --prefix typescript -ws verify

jvm/java-blocking-http/.gitignore

@@ -0,0 +1,32 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+.idea
+*.iml

jvm/java-blocking-http/README.md

@@ -0,0 +1,29 @@
+# Blocking HTTP example
+
+Sample project configuration of a Restate service using the Java blocking interface and HTTP server. It contains:
+
+* [`build.gradle.kts`](build.gradle.kts)
+* [Service interface definition `greeter.proto`](src/main/proto/greeter.proto)
+* [Service class implementation `Greeter`](src/main/java/dev/restate/sdk/examples/Greeter.java)
+* [Test `GreeterTest`](src/test/java/dev/restate/sdk/examples/GreeterTest.java)
+* [Logging configuration](src/main/resources/log4j2.properties)
+
+## Running the example
+
+You can run the Java greeter service via:
+
+```shell
+./gradlew run
+```
+
+Or from the IDE UI.
+
+## Running the tests
+
+You can run the tests either via:
+
+```shell
+./gradlew check
+```
+
+Or from the IDE UI.

jvm/java-blocking-http/build.gradle.kts

@@ -0,0 +1,70 @@
+import com.google.protobuf.gradle.id
+
+plugins {
+  java
+  application
+
+  id("com.google.protobuf") version "0.9.1"
+}
+
+repositories {
+  mavenCentral()
+  // OSSRH Snapshots repo
+  // TODO remove it once we have the proper release
+  maven { url = uri("https://s01.oss.sonatype.org/content/repositories/snapshots/") }
+}
+
+val restateVersion = "0.0.1-SNAPSHOT"
+
+dependencies {
+  // Restate SDK
+  implementation("dev.restate:sdk-java-blocking:$restateVersion")
+  implementation("dev.restate:sdk-http-vertx:$restateVersion")
+  // To use Jackson to read/write state entries (optional)
+  implementation("dev.restate:sdk-serde-jackson:$restateVersion")
+
+  // Protobuf and grpc dependencies
+  implementation("com.google.protobuf:protobuf-java:3.24.3")
+  implementation("io.grpc:grpc-stub:1.58.0")
+  implementation("io.grpc:grpc-protobuf:1.58.0")
+  // This is needed to compile the @Generated annotation forced by the grpc compiler
+  // See https://github.com/grpc/grpc-java/issues/9153
+  compileOnly("org.apache.tomcat:annotations-api:6.0.53")
+
+  // Logging (optional)
+  implementation("org.apache.logging.log4j:log4j-core:2.20.0")
+
+  // Testing (optional)
+  testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
+  testImplementation("dev.restate:sdk-test:$restateVersion")
+}
+
+// Configure protoc plugin
+protobuf {
+  protoc { artifact = "com.google.protobuf:protoc:3.24.3" }
+
+  // We need both grpc and restate codegen(s) because the restate codegen depends on the grpc one
+  plugins {
+    id("grpc") { artifact = "io.grpc:protoc-gen-grpc-java:1.58.0" }
+    id("restate") { artifact = "dev.restate:protoc-gen-restate-java-blocking:$restateVersion:all@jar" }
+  }
+
+  generateProtoTasks {
+    all().forEach {
+      it.plugins {
+        id("grpc")
+        id("restate")
+      }
+    }
+  }
+}
+
+// Configure test platform
+tasks.withType<Test> {
+  useJUnitPlatform()
+}
+
+// Set main class
+application {
+  mainClass.set("dev.restate.sdk.examples.Greeter")
+}

jvm/java-blocking-http/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists