Struct raphtory_io::graph_loader::source::csv_loader::CsvLoader

pub struct CsvLoader { /* private fields */ }

A struct that defines the CSV loader with configurable options.

Implementations

impl CsvLoader

pub fn new<P: Into<PathBuf>>(p: P) -> Self

Creates a new CsvLoader instance with the specified file path.

Arguments

• p - A path of the CSV file or directory containing CSV files.

Example

use raphtory_io::graph_loader::source::csv_loader::CsvLoader;
let loader = CsvLoader::new("/path/to/csv_file.csv");

pub fn set_header(self, h: bool) -> Self

Sets whether the CSV file has a header.

Arguments

• h - A boolean value indicating whether the CSV file has a header.

Example

use raphtory_io::graph_loader::source::csv_loader::CsvLoader;
let loader = CsvLoader::new("/path/to/csv_file.csv").set_header(true);

pub fn set_delimiter(self, d: &str) -> Self

Sets the delimiter character used in the CSV file.

Arguments

• d - A string containing the delimiter character.

Example

use raphtory_io::graph_loader::source::csv_loader::CsvLoader;
let loader = CsvLoader::new("/path/to/csv_file.csv").set_delimiter("|");

pub fn with_filter(self, r: Regex) -> Self

Sets the regex filter to select specific CSV files by name.

Arguments

• r - A regex pattern to filter CSV files by name.

Example

use regex::Regex;
use raphtory_io::graph_loader::source::csv_loader::CsvLoader;

let loader = CsvLoader::new("/path/to/csv_files")
   .with_filter(Regex::new(r"file_name_pattern").unwrap());

pub fn load_into_graph<F, REC, G>(&self, g: &G, loader: F) -> Result<(), CsvErr>where REC: DeserializeOwned + Debug, F: Fn(REC, &G) + Send + Sync, G: Sync,

Load data from all CSV files in the directory into a graph.

Arguments

• g - A reference to the graph object where the data should be loaded.
• loader - A closure that takes a deserialized record and the graph object as arguments and adds the record to the graph.

Returns

A Result containing an empty Ok value if the data is loaded successfully.

Errors

An error of type CsvErr is returned if an I/O error occurs while reading the files or parsing the CSV data.

Trait Implementations

impl Debug for CsvLoader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.