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Add Cloud Run Events Samples (#3256) · CoderBoyBoy/java-docs-samples@fe4dade · GitHub

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forked from GoogleCloudPlatform/java-docs-samples

Commit fe4dade

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averikitsch
authored
Add Cloud Run Events Samples (GoogleCloudPlatform#3256)
Fixes #issue > It's a good idea to open an issue first for discussion. - [x] I have followed [Sample Format Guide](https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/SAMPLE_FORMAT.md) - [x] `pom.xml` parent set to latest `shared-configuration` - [x] Appropriate changes to README are included in PR - [x] API's need to be enabled to test (tell us) - [x] Environment Variables need to be set (ask us to set them) - [x] **Tests** pass: `mvn clean verify` **required** - [x] **Lint** passes: `mvn -P lint checkstyle:check` **required** - [ ] **Static Analysis**: `mvn -P lint clean compile pmd:cpd-check spotbugs:check` **advisory only** - [x] Please **merge** this PR for me once it is approved.
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‎run/README.md‎

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@@ -18,6 +18,9 @@ This directory contains samples for [Google Cloud Run](https://cloud.run). [Clou
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|[Manual Logging](logging-manual/) | Structured logging for Stackdriver | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_log] |
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|[Local Troubleshooting](hello-broken/) | Broken services for local troubleshooting tutorial | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_broken] |
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|[Cloud SQL (MySQL)][mysql] | Use MySQL with Cloud Run | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_sql] |
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|[Events - Pub/Sub](events-pubsub/) | Events for Cloud Run with Pub/Sub | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_events_pubsub] |
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|[Events - GCS](events-gcs/) | Events for Cloud Run with GCS | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_events_gcs] |
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|[Authentication](authentication/) | Make an authenticated request by retrieving a JSON Web Tokens (JWT) | [<img src="https://storage.googleapis.com/cloudrun/button.svg" alt="Run on Google Cloud" height="30">][run_button_auth] |
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For more Cloud Run samples beyond Java, see the main list in the [Cloud Run Samples repository](https://github.com/GoogleCloudPlatform/cloud-run-samples).
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@@ -134,6 +137,9 @@ Learn more about [testing your container image locally.][testing]
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[run_button_image]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/image-processing
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[run_button_log]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/logging-manual
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[run_button_pubsub]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/pubsub
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[run_button_events_gcs]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/events-gcs
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[run_button_events_pubsub]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/events-pubsub
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[run_button_auth]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/authentication
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[run_button_sys_package]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/system-package
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[push-pull]: https://cloud.google.com/container-registry/docs/pushing-and-pulling
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[jib]: https://github.com/GoogleContainerTools/jib

‎run/events-pubsub/README.md‎

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# Events for Cloud Run - Pub/Sub tutorial
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This sample shows how to create a service that processes Pub/Sub messages.
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For more details on how to work with this sample read the [Google Cloud Run Java Samples README](https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/run).
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[![Run in Google Cloud][run_img]][run_link]
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[run_img]: https://storage.googleapis.com/cloudrun/button.svg
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[run_link]: https://deploy.cloud.run/?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&dir=run/events-pubsub
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## Dependencies
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* **Spring Boot**: Web server framework.
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* **Jib**: Container build tool.
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* **Junit + SpringBootTest**: [development] Test running framework.
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* **MockMVC**: [development] Integration testing support framework.
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## Quickstart
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Create a Cloud Pub/Sub topic:
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```sh
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gcloud pubsub topics create my-topic
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```
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Use the [Jib Maven Plugin](https://github.com/GoogleContainerTools/jib/tree/master/jib-maven-plugin) to build and push your container image:
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```sh
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mvn jib:build -Dimage gcr.io/$(gcloud config get-value project)/cloudrun-events-pubsub
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```
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Deploy your Cloud Run service:
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```sh
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gcloud run deploy cloudrun-events-pubsub \
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--image gcr.io/$(gcloud config get-value project)/cloudrun-events-pubsub
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```
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Create a Cloud Pub/Sub trigger:
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```sh
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gcloud alpha events triggers create pubsub-trigger \
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--target-service cloudrun-events-pubsub \
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--type com.google.cloud.pubsub.topic.publish \
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--parameters topic=my-topic
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```
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## Test
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Test your Cloud Run service by publishing a message to the topic:
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```sh
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gcloud pubsub topics publish my-topic --message="Hello there"
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```
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You may observe the Run service receiving an event in Cloud Logging.

‎run/events-pubsub/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2020 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.example.cloudrun</groupId>
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<artifactId>events-pubsub</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<!-- The parent pom defines common style checks and testing strategies for our samples.
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Removing or replacing it should not affect the execution of the samples in anyway. -->
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<parent>
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<groupId>com.google.cloud.samples</groupId>
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<artifactId>shared-configuration</artifactId>
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<version>1.0.18</version>
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</parent>
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<properties>
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<maven.compiler.target>11</maven.compiler.target>
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<maven.compiler.source>11</maven.compiler.source>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<!-- Import dependency management from Spring Boot -->
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-dependencies</artifactId>
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<version>2.3.1.RELEASE</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>Hoxton.SR6</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>3.10</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.json</groupId>
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<artifactId>json</artifactId>
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<version>20180130</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<!-- [START run_events_pubsub_jib] -->
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<plugin>
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<groupId>com.google.cloud.tools</groupId>
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<artifactId>jib-maven-plugin</artifactId>
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<version>2.4.0</version>
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<configuration>
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<to>
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<image>gcr.io/PROJECT_ID/cloudrun-events-pubsub</image>
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</to>
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</configuration>
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</plugin>
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<!-- [END run_events_pubsub_jib] -->
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</plugins>
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</build>
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</project>

‎run/events-pubsub/src/main/java/com/example/cloudrun/Application.java‎

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/*
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.cloudrun;
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// [START run_events_pubsub_server]
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class Application {
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public static void main(String[] args) {
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String port = System.getenv().getOrDefault("PORT", "8080");
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System.setProperty("server.port", port);
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SpringApplication.run(Application.class, args);
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}
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}
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// [END run_events_pubsub_server]

‎run/events-pubsub/src/main/java/com/example/cloudrun/EventController.java‎

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/*
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.cloudrun;
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// [START run_events_pubsub_handler]
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import com.example.cloudrun.eventpojos.PubSubBody;
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import java.util.Base64;
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import java.util.Map;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestHeader;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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public class EventController {
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@RequestMapping(value = "/", method = RequestMethod.POST)
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public ResponseEntity<String> receiveMessage(
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@RequestBody PubSubBody body, @RequestHeader Map<String, String> headers) {
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// Get PubSub message from request body.
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PubSubBody.PubSubMessage message = body.getMessage();
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if (message == null) {
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String msg = "No Pub/Sub message received.";
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System.out.println(msg);
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return new ResponseEntity<String>(msg, HttpStatus.BAD_REQUEST);
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}
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String data = message.getData();
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if (data == null || data.isEmpty()) {
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String msg = "Invalid Pub/Sub message format.";
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System.out.println(msg);
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return new ResponseEntity<String>(msg, HttpStatus.BAD_REQUEST);
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}
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String name =
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!StringUtils.isEmpty(data) ? new String(Base64.getDecoder().decode(data)) : "World";
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String ceId = headers.getOrDefault("ce-id", "");
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String msg = String.format("Hello, %s! ID: %s", name, ceId);
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System.out.println(msg);
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return new ResponseEntity<String>(msg, HttpStatus.OK);
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}
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}
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// [END run_events_pubsub_handler]

‎run/events-pubsub/src/main/java/com/example/cloudrun/eventpojos/PubSubBody.java‎

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/*
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.cloudrun.eventpojos;
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import java.util.Map;
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public class PubSubBody {
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private PubSubMessage message;
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public PubSubMessage getMessage() {
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return message;
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}
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public class PubSubMessage {
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private String data;
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private Map<String, String> attributes;
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private String messageId;
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private String publishTime;
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public String getData() {
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return data;
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}
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public void setData(String data) {
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this.data = data;
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}
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public Map<String, String> getAttributes() {
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return attributes;
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}
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public void setAttributes(Map<String, String> attributes) {
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this.attributes = attributes;
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}
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public String getMessageId() {
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return messageId;
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}
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public void setMessageId(String messageId) {
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this.messageId = messageId;
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}
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public String getPublishTime() {
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return publishTime;
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}
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public void setPublishTime(String publishTime) {
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this.publishTime = publishTime;
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}
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}
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}

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