CRON-SCHEDULER

spring project for cron scheduler, by default it only rest api call job using web client.

Configuration Properties

Application Configuration Properties

Property Name	Property Type	Default Value	Description
cron.quartz.instance-name	String	cron-scheduler	quartz instance name
cron.quartz.thread-pool-class	String	org.quartz.simpl.SimpleThreadPool	quartz thread pool implementation
cron.quartz.thread-name	String	cron-scheduler	quartz thread name
cron.quartz.thread-count	int	20	quartz thread count
cron.quartz.thread-priority	int	5	quartz thread priority
cron.quartz.job-store-class	String	org.quartz.simpl.RAMJobStore	quartz job store implementation
cron.quartz.misfire-threshold	int	60000	quartz misfire threshold configuration
job.configuration.web-client.connect-time-out	int	10	web client connect time out configuration
job.configuration.web-client.response-time-out	int	10	web client response time out configuration
job.configuration.web-client.read-time-out	int	10	web client read time out configuration
job.configuration.web-client.write-time-out	int	10	web client write time out configuration

Environment Variable

Environment Variable Name	Default Value	Description
SERVER_PORT	1000	application port
DB_URL	r2dbc:postgresql://localhost:5432/cron_db	application db host
DB_USER	user	application db username credential
DB_PASS	password	application db password credential
LOG_NAME	cron-scheduler.log	application log name
APP_LOG_LEVEL	INFO	application log level
MAX_LOG_HISTORY	14	max application log history
CONNECT_TIME_OUT	10	web client job connect time out
RESPONSE_TIME_OUT	10	web client job response time out
READ_TIME_OUT	10	web client job read time out
WRITE_TIME_OUT	10	web client job write time out
QUARTZ_INSTANCE_NAME	cron-scheduler	quartz instance name
QUARTZ_THREAD_POOL_CLASS	org.quartz.simpl.SimpleThreadPool	quartz thread pool implementation class
QUARTZ_THREAD_NAME	cron-scheduler	quartz thread pool name
QUARTZ_THREAD_COUNT	20	quartz thread pool size
QUARTZ_THREAD_PRIORITY	5	quartz thread priority
QUARTZ_JOB_STORE_CLASS	org.quartz.simpl.RAMJobStore	quartz job store implementation class
QUARTZ_MISFIRE_THRESHOLD	60000	quartz misfire threshold
WEB_CLIENT_JOB_LOG_LEVEL	DEBUG	web client job log level

Swagger URL

http://localhost:{server_port}/swagger-ui.html

How to Use

• Create Client Request
• Create Job Executor

Create Callback Notification

• create class that implements NotificationCallback interface
• add @Service annotation
• add @Primary annotation to make it primary bean Example:

import com.nantaaditya.cronscheduler.model.dto.NotificationCallbackDTO;

@Service
@Primary
public class EmailNotificationCallback implements NotificationCallback {

  private final EmailService emailService;

  @Override
  public Mono<Boolean> notifySuccess(NotificationCallbackDTO notificationCallback) {
    return emailService.send(notificationCallback);
  }

  @Override
  public Mono<Boolean> notifyFailed(NotificationCallbackDTO notificationCallback) {
    return emailService.send(notificationCallback);
  }
}

Build & Deploy Image

Build Jar

mvn install -DskipTests

Build Image

docker build -f .docker/Dockerfile -t nantaaditya/cron-scheduler:0.0.1 .

Run Image

docker run --env-file .deployment/.env.local --name cron-scheduler -p 1000:1000 -m512m nantaaditya/cron-scheduler:0.0.1

Build & Deploy Openj9 Image

Build Jar

mvn install -DskipTests

Build Image

docker build -f .docker/Dockerfile-Openj9 -t nantaaditya/cron-scheduler:0.0.1-o9 .

Run Image

docker run --env-file .deployment/.env.local --name cron-scheduler-o9 -p 1000:1000 -m512m nantaaditya/cron-scheduler:0.0.1-o9

Build & Deploy GraalVM Image

Build Image

docker buildx build -f .docker/Dockerfile-GraalVM -t nantaaditya/cron-scheduler:0.0.1-gvm .

Run Image

docker run --env-file .deployment/.env.local --name cron-scheduler-gvm -p 1000:1000 nantaaditya/cron-scheduler:0.0.1-gvm