$ show apache/shardingsphere-elasticjob
Apache ShardingSphere ElasticJob is a distributed job scheduling framework providing elastic sharding, failover, misfire handling, and lifecycle management. It is a Java library that can be embedded in applications or used via Spring Boot auto-configuration. The system coordinates jobs across multiple nodes using a registry center (ZooKeeper, etcd, Nacos, or in-memory). It supports multiple job types (simple, dataflow, script, HTTP) and provides RESTful admin APIs, event tracing, and error notification. The architecture is modular with clear SPI-based extensibility for job executors, error handlers, tracing listeners, and registry center providers. The codebase is well-engineered with extensive tests, but retains some legacy integration paths (Spring XML namespace) and tight coupling to ZooKeeper in core modules.
The LLM identified 3 files worth highlighting for reuse:
Provides a bounded wait loop with a configurable timeout. Used internally for sharding and leader election synchronization. The implementation is self-contained (only depends on java.util.concurrent) and can be extracted into any project needing a simple, interrupt-safe timed wait pattern.
Implements URL pattern matching using precompiled regex and maintains a mapping from patterns to objects. Supports variable path parameters and priority ordering. This component is completely decoupled from the HTTP layer and can be reused in any routing framework requiring path-to-handler resolution.
A utility class to mask sensitive information (passwords, tokens) in strings using regex replacement. It is self-contained (uses java.util.regex and Apache Commons Lang) and can be reused in any project that needs to sanitize logs or error messages without exposing secrets.