Add sample Hello World Scheduled Job

build.gradle

@@ -14,6 +14,7 @@ import org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestFram
 
 plugins {
     id 'java'
+    id 'java-library'
     id "com.diffplug.spotless" version "6.18.0" apply false
     id 'jacoco'
     id "com.form.diff-coverage" version "0.9.5"
@@ -33,12 +34,6 @@ apply plugin: 'application'
 apply from: 'gradle/formatting.gradle'
 apply plugin: 'maven-publish'
 
-// Temporary to keep "gradle run" working
-// TODO: change this to an extension designed for testing instead of duplicating a sample
-// https://github.com/opensearch-project/opensearch-sdk-java/issues/175
-mainClassName = 'org.opensearch.sdk.sample.helloworld.HelloWorldExtension'
-
-
 group 'org.opensearch.sdk'
 version '2.0.0-SNAPSHOT'
 
@@ -77,6 +72,15 @@ repositories {
     maven { url "https://d1nvenhzbhpy0q.cloudfront.net/snapshots/lucene/"}
 }
 
+subprojects {
+    repositories {
+        mavenLocal()
+        mavenCentral()
+        maven { url "https://aws.oss.sonatype.org/content/repositories/snapshots" }
+        maven { url "https://d1nvenhzbhpy0q.cloudfront.net/snapshots/lucene/"}
+    }
+}
+
 dependencies {
 
     def opensearchVersion = "3.0.0-SNAPSHOT"
@@ -90,13 +94,14 @@ dependencies {
     def junitPlatform = "1.9.3"
     def jaxbVersion = "2.3.1"
 
-    implementation("org.opensearch:opensearch:${opensearchVersion}")
+    api("org.opensearch:opensearch:${opensearchVersion}")
+
     implementation("org.apache.logging.log4j:log4j-api:${log4jVersion}")
     implementation("org.apache.logging.log4j:log4j-core:${log4jVersion}")
     implementation("org.apache.logging.log4j:log4j-jul:${log4jVersion}")
-    implementation("org.opensearch.client:opensearch-rest-high-level-client:${opensearchVersion}")
-    implementation("org.opensearch.client:opensearch-rest-client:${opensearchVersion}")
-    implementation("org.opensearch.client:opensearch-java:${opensearchVersion}")
+    api("org.opensearch.client:opensearch-rest-high-level-client:${opensearchVersion}")
+    api("org.opensearch.client:opensearch-rest-client:${opensearchVersion}")
+    api("org.opensearch.client:opensearch-java:${opensearchVersion}")
     implementation("org.opensearch.plugin:transport-netty4-client:${opensearchVersion}")
     implementation("io.netty:netty-all:${nettyVersion}")
     testCompileOnly("junit:junit:${junit4Version}") {
@@ -109,25 +114,17 @@ dependencies {
     implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:${jacksonDatabindVersion}")
     implementation("com.fasterxml.jackson.datatype:jackson-datatype-guava:${jacksonDatabindVersion}")
     constraints {
-        implementation("com.google.guava:guava:${guavaVersion}") {
+        api("com.google.guava:guava:${guavaVersion}") {
             because 'versions below 30.0 have active CVE'
         }
     }
-    implementation("com.google.inject:guice:${guiceVersion}")
+    api("com.google.inject:guice:${guiceVersion}")
     testImplementation("org.junit.jupiter:junit-jupiter-api:${junit5Version}")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junit5Version}")
     testImplementation("org.opensearch.test:framework:${opensearchVersion}")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher:${junitPlatform}")
 }
 
-// this task runs the helloworld sample extension
-task helloWorld(type: JavaExec) {
-    group = 'Execution'
-    description = 'Run HelloWorld Extension.'
-    mainClass = 'org.opensearch.sdk.sample.helloworld.HelloWorldExtension'
-    classpath = sourceSets.main.runtimeClasspath
-}
-
 test {
     // Temporary workaround for https://github.com/gradle/gradle/issues/23995
     getTestFrameworkProperty().convention(getProviderFactory().provider(() -> new JUnitPlatformTestFramework(it.getFilter(), false)))

sample/.gitignore

@@ -0,0 +1,29 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

sample/build.gradle

@@ -0,0 +1,100 @@
+import org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestFramework
+
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ * Modifications Copyright OpenSearch Contributors. See
+ * GitHub history for details.
+ */
+
+plugins {
+    id 'java'
+    id "com.diffplug.spotless" version "6.18.0" apply false
+    id 'jacoco'
+    id "com.form.diff-coverage" version "0.9.5"
+    // for javadocs and checks spotless doesn't do
+    id 'checkstyle'
+}
+
+ext {
+    projectSubstitutions = [:]
+    licenseFile = rootProject.file('LICENSE.txt')
+    noticeFile = rootProject.file('NOTICE.txt')
+}
+
+
+apply plugin: 'application'
+apply plugin: 'maven-publish'
+
+// Temporary to keep "gradle run" working
+// TODO: change this to an extension designed for testing instead of duplicating a sample
+// https://github.com/opensearch-project/opensearch-sdk-java/issues/175
+mainClassName = 'org.opensearch.sdk.sample.helloworld.HelloWorldExtension'
+
+
+group 'org.opensearch.sdk.sample'
+version '2.0.0-SNAPSHOT'
+
+java {
+    withSourcesJar()
+    withJavadocJar()
+}
+
+publishing {
+    publications {
+        group = "${group}"
+        version = "${version}"
+        mavenJava(MavenPublication) {
+            from components.java
+        }
+        sourceCompatibility = 11
+        targetCompatibility = 11
+    }
+
+    repositories {
+        maven {
+            name = "Snapshots" //  optional target repository name
+            url = "https://aws.oss.sonatype.org/content/repositories/snapshots"
+            credentials {
+                username "$System.env.SONATYPE_USERNAME"
+                password "$System.env.SONATYPE_PASSWORD"
+            }
+        }
+    }
+}
+
+test {
+    getTestFrameworkProperty().convention(getProviderFactory().provider(() -> new JUnitPlatformTestFramework(it.getFilter(), false)))
+    jvmArgs '--enable-preview'
+    systemProperty 'tests.security.manager', 'false'
+}
+
+dependencies {
+    def opensearchVersion = "3.0.0-SNAPSHOT"
+    def jobSchedulerVersion = "3.0.0.0-SNAPSHOT"
+    def junit5Version = "5.9.3"
+    def junitPlatform = "1.9.3"
+
+    implementation project(':')
+    implementation("org.opensearch.plugin:opensearch-job-scheduler:${jobSchedulerVersion}")
+    implementation("org.opensearch:opensearch-job-scheduler:${jobSchedulerVersion}")
+    implementation("org.opensearch:opensearch-job-scheduler-spi:${jobSchedulerVersion}")
+
+    testImplementation project(':').sourceSets.test.output
+    testImplementation("org.junit.jupiter:junit-jupiter-api:${junit5Version}")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:${junit5Version}")
+    testImplementation("org.opensearch.test:framework:${opensearchVersion}")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher:${junitPlatform}")
+}
+
+// this task runs the helloworld sample extension
+task helloWorld(type: JavaExec) {
+    group = 'Execution'
+    description = 'Run HelloWorld Extension.'
+    mainClass = 'org.opensearch.sdk.sample.helloworld.HelloWorldExtension'
+    classpath = sourceSets.main.runtimeClasspath
+}

src/main/java/org/opensearch/sdk/sample/helloworld/HelloWorldExtension.java → sample/src/main/java/org/opensearch/sdk/sample/helloworld/HelloWorldExtension.java

@@ -11,19 +11,29 @@
 
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 
+import com.google.common.collect.ImmutableList;
 import org.opensearch.action.ActionRequest;
 import org.opensearch.action.ActionResponse;
 import org.opensearch.common.settings.Setting;
+import org.opensearch.core.xcontent.NamedXContentRegistry;
 import org.opensearch.sdk.BaseExtension;
 import org.opensearch.sdk.Extension;
 import org.opensearch.sdk.ExtensionSettings;
 import org.opensearch.sdk.ExtensionsRunner;
+import org.opensearch.sdk.SDKClient;
 import org.opensearch.sdk.api.ActionExtension;
 import org.opensearch.sdk.rest.ExtensionRestHandler;
 import org.opensearch.sdk.sample.helloworld.rest.RestHelloAction;
 import org.opensearch.sdk.sample.helloworld.rest.RestRemoteHelloAction;
+import org.opensearch.sdk.sample.helloworld.schedule.GreetJob;
+import org.opensearch.sdk.sample.helloworld.transport.HWJobParameterAction;
+import org.opensearch.sdk.sample.helloworld.transport.HWJobParameterTransportAction;
+import org.opensearch.sdk.sample.helloworld.transport.HWJobRunnerAction;
+import org.opensearch.sdk.sample.helloworld.transport.HWJobRunnerTransportAction;
 import org.opensearch.sdk.sample.helloworld.transport.SampleAction;
 import org.opensearch.sdk.sample.helloworld.transport.SampleTransportAction;
 
@@ -61,7 +71,30 @@ public List<ExtensionRestHandler> getExtensionRestHandlers() {
 
     @Override
     public List<ActionHandler<? extends ActionRequest, ? extends ActionResponse>> getActions() {
-        return Arrays.asList(new ActionHandler<>(SampleAction.INSTANCE, SampleTransportAction.class));
+        return Arrays.asList(
+            new ActionHandler<>(SampleAction.INSTANCE, SampleTransportAction.class),
+            new ActionHandler<>(HWJobRunnerAction.INSTANCE, HWJobRunnerTransportAction.class),
+            new ActionHandler<>(HWJobParameterAction.INSTANCE, HWJobParameterTransportAction.class)
+        );
+    }
+
+    @Override
+    public List<NamedXContentRegistry.Entry> getNamedXContent() {
+        return ImmutableList.of(GreetJob.XCONTENT_REGISTRY);
+    }
+
+    @Deprecated
+    private SDKClient.SDKRestClient createRestClient(ExtensionsRunner runner) {
+        @SuppressWarnings("resource")
+        SDKClient.SDKRestClient client = runner.getSdkClient().initializeRestClient();
+        return client;
+    }
+
+    @Override
+    public Collection<Object> createComponents(ExtensionsRunner runner) {
+        SDKClient.SDKRestClient sdkRestClient = createRestClient(runner);
+
+        return Collections.singletonList(sdkRestClient);
     }
 
     /**