Struct cor_args::CfgFileHandler

pub struct CfgFileHandler { /* private fields */ }

A configuration file handler for reading key-value pairs from a file.

The CfgFileHandler is used to read configuration data from a file and provide it as key-value pairs. It supports chaining multiple handlers for fallback behavior.

Examples

use cor_args::{CfgFileHandler, Handler};

// Create a new CfgFileHandler for a specific file path
let handler = CfgFileHandler::new("config.toml");

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

// Handle a configuration request
let value = handler.handle_request("some_key");

Implementations

impl CfgFileHandler

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

where P: Into<PathBuf>,

Create a new CfgFileHandler for the specified file path.

Parameters

• file_path: A path to the configuration file.

Returns

A new CfgFileHandler instance.

Examples

use cor_args::CfgFileHandler;

let handler = CfgFileHandler::new("config.toml");

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

Trait Implementations

impl Handler for CfgFileHandler

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

Handle a configuration request and return the value associated with the provided key.

This method attempts to read the configuration file and retrieve the value associated with the given key. If the key is not found, it may delegate the request to a fallback handler if one is defined.

Parameters

• key: A string representing the configuration key to retrieve.

Returns

An Option containing the value associated with the key, or None if the key is not found.

impl Into<Box<dyn Handler>> for CfgFileHandler

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

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