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## Ballista Code Organization

This section provides links to the source code for major areas of functionality.

### ballista-core crate

- [Crate Source](https://github.com/apache/datafusion-ballista/blob/main/ballista/core)
- [Protocol Buffer Definition](https://github.com/apache/datafusion-ballista/blob/main/ballista/core/proto/ballista.proto)
- [Execution Plans](https://github.com/apache/datafusion-ballista/tree/main/ballista/core/src/execution_plans)
- [Ballista Client](https://github.com/apache/datafusion-ballista/blob/main/ballista/core/src/client.rs)

### ballista-scheduler crate

- [Crate Source](https://github.com/apache/datafusion-ballista/tree/main/ballista/scheduler)
- [Distributed Query Planner](https://github.com/apache/datafusion-ballista/blob/main/ballista/scheduler/src/planner.rs)
- [gRPC Service](https://github.com/apache/datafusion-ballista/blob/main/ballista/scheduler/src/scheduler_server/grpc.rs)
- [Flight SQL Service](https://github.com/apache/datafusion-ballista/blob/main/ballista/scheduler/src/flight_sql.rs)
- [REST API](https://github.com/apache/datafusion-ballista/tree/main/ballista/scheduler/src/api)
- [Prometheus Integration](https://github.com/apache/datafusion-ballista/blob/main/ballista/scheduler/src/metrics/prometheus.rs)

### ballista-executor crate

- [Crate Source](https://github.com/apache/datafusion-ballista/tree/main/ballista/executor)
- [Flight Service](https://github.com/apache/datafusion-ballista/blob/main/ballista/executor/src/flight_service.rs)
- [Executor Server](https://github.com/apache/datafusion-ballista/blob/main/ballista/executor/src/executor_server.rs)

### ballista crate

- [Crate Source](https://github.com/apache/datafusion-ballista/tree/main/ballista/client)
- [Context](https://github.com/apache/datafusion-ballista/blob/main/ballista/client/src/context.rs)

### PyBallista

- [Source](https://github.com/apache/datafusion-ballista/tree/main/python)
- [Context](https://github.com/apache/datafusion-ballista/blob/main/python/src/context.rs)