Quartz Boot

Spring Boot scheduling using Quartz and PostgreSQL to store job scheduling data

Goal

Schedule a job manually using Quartz for schedule management in a clustered application.

Requirements

Java 11 (should work with Java 8 too)
Docker (docker-compose used to setup PostgreSQL and PgAdmin)

Starting the application

1. PostgreSQL and PgAdmin

Start PostgreSQL and PgAdmin already configured in docker-compose.yml with the command

# inside the root folder
sudo docker-compose up

2. Create the database

Login in PgAdmin accessing http://localhost:16543 (user: postgres, pass: postgres);
Connect to the PostgreSQL using the connection properties below (pass: postgres);

Create a database named quartzboot;

3. Start the application

run the command

mvn clean install && mvn spring-boot:run

or simply run the project in your IDE

Running the example

Make a POST request to localhost:8080/schedule

The application must schedule a job to execute after 30 seconds and the execution must be logged like below:

2020-06-17 02:14:25.549  INFO 10876 --- [nio-8080-exec-3] b.c.p.quartzboot.service.JobServiceImpl  : Job scheduled to run at Wed Jun 17 02:14:55 GMT-03:00 2020
2020-06-17 02:14:55.535  INFO 10876 --- [eduler_Worker-1] b.com.platinum.quartzboot.job.SimpleJob  : Executing SimpleJob

Attention points

Quartz tables

Since the property spring.quartz.jdbc.initialize-schema has the value always, Quartz will drop and create qrtz_* tables every time the application starts. If you want to keep the tables and values to simulate a service shutdown, do not forget to change de value to never before start the application again.

platinump2w/spring-boot-quartz