Struct spring_batch_rs::CsvItemReaderBuilder

pub struct CsvItemReaderBuilder { /* private fields */ }

Implementations

impl CsvItemReaderBuilder

Create a new builder for configuring CSV parsing.

To convert a builder into a reader, call one of the methods starting with from_.

Example

use std::error::Error;
use csv::{ReaderBuilder, StringRecord};

fn example() -> Result<(), Box<dyn Error>> {
    let data = "\
city,country,pop
Boston,United States,4628910
Concord,United States,42695
";
    let mut rdr = ReaderBuilder::new().from_reader(data.as_bytes());

    let records = rdr
        .records()
        .collect::<Result<Vec<StringRecord>, csv::Error>>()?;
    assert_eq!(records, vec![
        vec!["Boston", "United States", "4628910"],
        vec!["Concord", "United States", "42695"],
    ]);
    Ok(())
}

pub fn new() -> CsvItemReaderBuilder

Examples found in repository

examples/csv_reader_with_headers.rs (line 34)

fn main() -> std::io::Result<()> {
    let csv = "year,make,model,description
    1948,Porsche,356,Luxury sports car
    1967,Ford,Mustang fastback 1967,American car";

    let reader = CsvItemReaderBuilder::new()
        .has_headers(true)
        .delimiter(b',')
        .from_reader(csv.as_bytes());

    let writer = LoggerWriter::new();

    let step: Step<Record, Record> = StepBuilder::new()
        .reader(&reader)
        .writer(&writer)
        .chunk(4)
        .build();

    step.execute();

    Ok(())
}

pub fn delimiter(self, delimiter: u8) -> CsvItemReaderBuilder

Examples found in repository

examples/csv_reader_with_headers.rs (line 36)

fn main() -> std::io::Result<()> {
    let csv = "year,make,model,description
    1948,Porsche,356,Luxury sports car
    1967,Ford,Mustang fastback 1967,American car";

    let reader = CsvItemReaderBuilder::new()
        .has_headers(true)
        .delimiter(b',')
        .from_reader(csv.as_bytes());

    let writer = LoggerWriter::new();

    let step: Step<Record, Record> = StepBuilder::new()
        .reader(&reader)
        .writer(&writer)
        .chunk(4)
        .build();

    step.execute();

    Ok(())
}

pub fn terminator(self, terminator: Terminator) -> CsvItemReaderBuilder

pub fn has_headers(self, yes: bool) -> CsvItemReaderBuilder

Examples found in repository

examples/csv_reader_with_headers.rs (line 35)

fn main() -> std::io::Result<()> {
    let csv = "year,make,model,description
    1948,Porsche,356,Luxury sports car
    1967,Ford,Mustang fastback 1967,American car";

    let reader = CsvItemReaderBuilder::new()
        .has_headers(true)
        .delimiter(b',')
        .from_reader(csv.as_bytes());

    let writer = LoggerWriter::new();

    let step: Step<Record, Record> = StepBuilder::new()
        .reader(&reader)
        .writer(&writer)
        .chunk(4)
        .build();

    step.execute();

    Ok(())
}

pub fn from_reader<R: Read>(self, rdr: R) -> CsvItemReader<R>

Examples found in repository

examples/csv_reader_with_headers.rs (line 37)

fn main() -> std::io::Result<()> {
    let csv = "year,make,model,description
    1948,Porsche,356,Luxury sports car
    1967,Ford,Mustang fastback 1967,American car";

    let reader = CsvItemReaderBuilder::new()
        .has_headers(true)
        .delimiter(b',')
        .from_reader(csv.as_bytes());

    let writer = LoggerWriter::new();

    let step: Step<Record, Record> = StepBuilder::new()
        .reader(&reader)
        .writer(&writer)
        .chunk(4)
        .build();

    step.execute();

    Ok(())
}

pub fn from_path<R: AsRef<Path>>(self, path: R) -> CsvItemReader<File>

Trait Implementations

impl Default for CsvItemReaderBuilder

fn default() -> CsvItemReaderBuilder

Returns the “default value” for a type.