Struct FileHandler

pub struct FileHandler { /* private fields */ }

A handler for retrieving values from a file.

This struct is responsible for handling requests by checking for values within a specified file.

Examples

use cor_args::{FileHandler, Handler};

// Create a new FileHandler specifying a path to a file.
let handler = FileHandler::new("/path/to/file");

// Add a fallback handler
//let handler = handler.next(some_other_handler.into());

// Handle a configuration request returning contents of `/path/to/file`
let value = handler.handle_request("");

Implementations

impl FileHandler

pub fn new<P>(file_path: P) -> Self

where P: Into<PathBuf>,

Creates a new FileHandler with the specified file path.

Arguments

• file_path - The path to the file from which values are to be retrieved.

Examples

use cor_args::FileHandler;

let handler = FileHandler::new("/path/to/file");

pub fn next(self, handler: Box<dyn Handler>) -> Self

Trait Implementations

impl Handler for FileHandler

fn handle_request(&self, key: &str) -> Option<String>

Retrieves content from the specified file.

This implementation attempts to read content from the file specified by file_path. If reading fails, and if a next handler is provided, it delegates the request to the next handler. If there’s no next handler or if the file reading fails, it returns None.

Arguments

• key - The key for which the value needs to be retrieved. (Note: The key is currently not used directly, just passed on to the next handler.)

Returns

An Option containing the contents of the file, or None if the key is not found.

impl Into<Box<dyn Handler>> for FileHandler

fn into(self) -> Box<dyn Handler>

Converts this type into the (usually inferred) input type.