src/lib.rs

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

extern crate core;

use pyo3::prelude::*;
use std::env;

mod proto;
pub use proto::generated::protobuf;

pub mod codec;
pub mod context;
pub mod dataframe;
pub mod flight;
pub mod isolator;
pub mod max_rows;
pub mod physical;
pub mod pre_fetch;
pub mod processor_service;
pub mod stage;
pub mod stage_reader;
pub mod util;

#[pymodule]
fn _datafusion_ray_internal(m: &Bound<'_, PyModule>) -> PyResult<()> {
    setup_logging();
    m.add_class::<context::DFRayContext>()?;
    m.add_class::<dataframe::DFRayDataFrame>()?;
    m.add_class::<dataframe::PyDFRayStage>()?;
    m.add_class::<processor_service::DFRayProcessorService>()?;
    m.add_class::<util::LocalValidator>()?;
    m.add_function(wrap_pyfunction!(util::prettify, m)?)?;
    Ok(())
}

fn setup_logging() {
    // ensure this python logger will route messages back to rust
    pyo3_pylogger::register("datafusion_ray");

    let dfr_env = env::var("DATAFUSION_RAY_LOG_LEVEL").unwrap_or("WARN".to_string());
    let rust_log_env = env::var("RUST_LOG").unwrap_or("WARN".to_string());

    let combined_env = format!("{rust_log_env},datafusion_ray={dfr_env}");

    env_logger::Builder::new()
        .parse_filters(&combined_env)
        .init();
}