Spring-Boot, Vaadin, RabbitMQ, Data Pipeline Demo

Overview

This Demo App Showcases the following Latest Technology Stack:

• Spring AMQP Client
  • RabbitTemplate
  • SimpleMessageListenerContainer
  • MessageListener
• Vaadin - #1 Java Web UI Framework for Business Applications
  • Vaadin UI, Vaadin Navigation, Vaadin @Push (WebSocket)
  • A single page web application, and purely in Java
• Spring Boot Application
  • Spring REST
  • Spring Test
  • Spring Security
  • Spring Data JPA
  • Spring AMQP
  • Spring Web
• H2 In-Memory Database
• Jayway JsonPath

The Complete Maven pom.xml

You can find the complete Maven pom.xml.

Pipeline Processing Design

Prerequisites

This Demo App uses RabbitMQ as its Message Broker. You install RabbitMQ locally.

Install RabbitMQ Locally

Please follow the instructions to download and install RabbitMQ locally before you can run this Demo App.

Downloading and Installing RabbitMQ

Set RabbitMQ host, username, & password in application.properties

Set these values for RabbitMQ in 'application.properties' file only if they're different from the default values.

rabbitmq.host=localhost
rabbitmq.username=guest
rabbitmq.password=guest

Install

Get the Demo App Source Code

You can get the Demo App source code here using the upper-right "Clone or download" button.

OR, use the command:

$ git clone https://github.com/MikeQin/spring-boot-vaadin-rabbitmq-pipeline-demo.git

Preferrable, you import the source code into your favorite IDE, such as Eclipse, or IntelliJ IDEA

Run

You can run this Demo App:

mvn spring-boot:run

Demo App in Browser

http://localhost:8080

Basic Authentication Login

username: admin

password: admin

There are currently two Roles: 'ADMIN', 'USER'

USER longin: user / user

• 'USER' does not have privilege to call RESTful APIs, or view H2 Database console. See below for detail.
• 'ADMIN' role can perform all tasks.

Demo App UI

Demo View

Streaming View

Console Log

RESTful APIs

When you login as 'ADMIN' using browser:

http://localhost:8080/events

Returns all events.

http://localhost:8080/events?type=INFO

Returns 'INFO' type events.

Event types: 'INFO', 'WARNING', 'ERROR'.

http://localhost:8080/user

Returns current login.user

RabbitMQ Management UI

Exchange: x.topic.logs

Queues: q.logs.info, q.logs.warning, q.logs.error

H2 Database Console

When you login as 'ADMIN' using browser:

http://localhost:8080/console

Please note the following H2 configurations (also in application.properties)

spring.datasource.url=jdbc:h2:file:~/test;DB_CLOSE_ON_EXIT=FALSE
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.driverClassName=org.h2.Driver

To see all persisted events.