mebest100/my-job-scheduler-demo

Job-Scheduler Design Demo

This is a job scheduler implemented by springboot,quartz and json MockDB.

Involved Tech and Application Features

• springboot for rest api,quartz for job scheduler, json operation for Mock DB
• Eligible to Create/Read/Update/Delete jobs to run and restfuly api provided.
• Supports one time execution and repetitive executions triggered at a fixed interval, i.e. 10 seconds.
• Use JSON File as DB-Mock to persist jobs.
• The application ultilize quartz thread pool to scale to thousands of jobs and many workers.
• dockerized running available

API Guide:

• Create a job： http://hostip:8080/api/addjob

  Rest Method

  POST
  

  request body example as below(json):

{
    "jobName": "job1",
    "jobDesc": "job1 task created!",
    "interval": 5
}

 interval: 0  ==> one time job
 interval: positive integer ==>   repetitive job,

• Get job list: http://hostip:8080/api/getalljobs

  Rest Method

  GET
  

• Query a job by job name: http://hostip:8080/api/getjob/{jobName}

  Rest Method

  GET
  

• Update a job(reschedule job by new interval and change job description):
  Api Url: http://hostip:8080/api/updatejob

  Rest Method

  POST
  

  request body example as below(json):

{
    "jobName": "job1",
    "jobDesc": "job1 task updated",
    "interval": 10
}

 interval: 0   ==> one time job
 interval: positive integer ==>   repetitive job

• Delete a job： http://hostip:8080/api/deljob/{jobName}

  Rest Method

  GET
  

• Pause a job： http://hostip:8080/api/pausejob/{jobName}

  Rest Method

  GET
  

• Resume a job： http://hostip:8080/api/resumejob/{jobName}

  Rest Method

  GET
  

• Pause all jobs： http://hostip:8080/api/pauseall

  Rest Method

  GET
  

• Resume all jobs： http://hostip:8080/api/resumeall

  Rest Method

  GET
  

• General Response Example

{
"code": 200,
"message": "SUCCESS",
"data": {
"job2": "{\"interval\":5,\"jobDesc\":\"job2 updated !\",\"jobName\":\"job2\",\"status\":\"running\"}",
"job1": "{\"interval\":2,\"jobDesc\":\"job1 start!\",\"jobName\":\"job1\",\"status\":\"running\"}"
    }
}

Dockerized Run Mode Guide:

• cd to project root dir and run below commands:

docker build -t yuanbest/job-scheduler-test .
docker run -dt -p 8080:8080 yuanbest/job-scheduler-test

Then you have build docker image and ran the container.

• Actual running scene as below