https://github.com/jmrozanec/cron-utils-scheduler

A Java job scheduler based on cron-utils library. Supports multiple cron formats - even custom ones!
https://github.com/jmrozanec/cron-utils-scheduler

cron cron-utils-scheduler java-job-scheduler scheduled-jobs

Last synced: 6 months ago
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A Java job scheduler based on cron-utils library. Supports multiple cron formats - even custom ones!

• Host: GitHub
• URL: https://github.com/jmrozanec/cron-utils-scheduler
• Owner: jmrozanec
• License: apache-2.0
• Created: 2017-05-20T19:45:09.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2022-08-01T16:18:11.000Z (about 3 years ago)
• Last Synced: 2025-03-25T17:06:57.586Z (7 months ago)
• Topics: cron, cron-utils-scheduler, java-job-scheduler, scheduled-jobs
• Language: Java
• Size: 23.4 KB
• Stars: 13
• Watchers: 2
• Forks: 5
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# cron-utils-scheduler

A Java job scheduler based on cron-utils library. Supports multiple cron formats - even custom ones! 

- priority WAITING queue: jobs sorted by date: more recent first. Wait until pulled to EXECUTING queue.

- priority EXECUTING queue: jobs sorted by date: more recent first. A pool of executors retrieves them and executes ASAP.

- watcher thread: every N ms (where N ms <1s), check next job(s) to be executed and assign them to EXECUTING queue

- executor: executes assigned jobs. Notifies execution end state: SUCCEEDED, FAILED

- SUCCEEDED queue: holds last successfuly executed jobs

- FAILED queue: holds last FAILED jobs

Job: provides execution code

ExecutionInstance: job+status+date

ExecutionStatus

Consider:

- ability to schedule Runnables

- ability to schedule jobs that must hold no state (except for serializable parameters) and should be created by reflection (support distributed execution in a future)