mitoo 0.3.0

mitoo is a Rust toolkit library that encapsulates methods such as configuration reading, file operations, encryption and decryption, transcoding, regular expressions, threading, collections, trees, sqlite, rabbitMQ, etc., and customizes or integrates various Util tool classes.
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use std::pin::Pin;
use crate::Exception;

/// Object storage abstraction definition
pub trait ObjectStorage {

    /// 对象存储中，每个对象的元数据内容
    type ObjectMeta;

    /// 列举指定前缀开头的所有对象元数据
    fn list<'a>(&'a self, object_key_prefix: &'a str) -> Pin<Box<dyn Future<Output = Result<Vec<Self::ObjectMeta>, Exception>> + Send + 'a>>;

    /// 上传对象
    fn upload_bytes<'a>(&'a self, object_key: &'a str, data: Vec<u8>) -> Pin<Box<dyn Future<Output = Result<(), Exception>> + Send + 'a>>;

    /// 上传文件
    fn upload_file<'a>(&'a self, object_key: &'a str, file_path: &'a str) -> Pin<Box<dyn Future<Output = Result<(), Exception>> + Send + 'a>>;

    /// 下载对象，方法内部会构造http请求：
    fn download_bytes<'a>(&'a self, object_key: &'a str) -> Pin<Box<dyn Future<Output = Result<Vec<u8>, Exception>> + Send + 'a>>;


    /// 下载文件，并指定本地保存用的文件路径
    ///
    /// # 参数
    ///
    /// `overwrite` - 是否覆盖，true，当文件存在时，覆盖文件，false，当文件存在时，不覆盖文件
    ///
    fn download_file<'a>(&'a self, object_key: &'a str, file_path: &'a str, overwrite: bool) -> Pin<Box<dyn Future<Output = Result<(), Exception>> + Send + 'a>>;

    fn url_sign(&self, object_key: &str) -> Result<String, Exception>;
}

// pub struct Mmm;
// impl ObjectStorage for Mmm {
//     type ObjectMeta = String;
//
//     fn list<'a>(&'a self, object_key_prefix: &'a str) -> Pin<Box<dyn Future<Output=Result<Vec<Self::ObjectMeta>, Exception>> + Send + 'a>> {
//
//         let fut = async {
//             let s = "hello".to_string();
//             Ok(vec![s])
//         };
//         Box::pin(fut)
//     }
//
// }