#csv #ingredient #rettle #fill #etl #pour #file

cstea

An Ingredient crate for working with csv files in rettle

4 stable releases

2.0.1 Jan 11, 2020
2.0.0 Jan 10, 2020
1.0.1 Aug 6, 2019
1.0.0 Aug 5, 2019

#1259 in Encoding

45 downloads per month

MIT/Apache

14KB
194 lines

cstea

LICENSE License Build Status Crates.io Version Minimum rustc version

This is a generic csv file Fill and Pour Ingredient crate for use with the rettle ETL.

Data Structures

  • FillCsvArg: Ingredient params for FillCsTea
  • FillCsTea: Wrapper to simplifiy the creation of the Fill Ingredient to be used in the rettle Pot.
  • PourCsvArg: Ingredient params for PourCsTea
  • PourCsTea: Wrapper to simplifiy the creation of the Pour Ingredient to be used in the rettle Pot.

Example

#[derive(Default, Clone, Debug, Deserialize, Serialize)]
struct CsTea {
    id: i32,
    name: String,
    value: i32
}

impl Tea for CsTea {
    fn as_any(&self) -> &dyn Any {
        self
    }
}

fn main() {
    let test_csvarg = FillCsvArg::new("fixtures/test.csv", 50);
    let test_pour_csvarg = PourCsvArg::new("fixtures/pour.csv");

    let brewery = Brewery::new(4, Instant::now());
    let mut new_pot = Pot::new();
    let fill_cstea = FillCsTea::new::<CsTea>("csv_tea_source", "csv_fixture", test_csvarg);
    let pour_cstea = PourCsTea::new::<CsTea>("csv_pour_test", test_pour_csvarg);

    new_pot = new_pot.add_source(fill_cstea);

    // Steep operations of choice

    new_pot = new_pot.add_ingredient(pour_cstea);

    new_pot.brew(&brewery);
}

Dependencies

~1.8–2.7MB
~45K SLoC