feox_server/
error.rs

1use std::io;
2use thiserror::Error;
3
4#[derive(Error, Debug)]
5pub enum Error {
6    #[error("IO error: {0}")]
7    Io(#[from] io::Error),
8
9    #[error("FeOxDB error: {0}")]
10    Database(#[from] feoxdb::FeoxError),
11
12    #[error("Protocol error: {0}")]
13    Protocol(String),
14
15    #[error("Connection closed")]
16    ConnectionClosed,
17
18    #[error("Buffer overflow")]
19    BufferOverflow,
20
21    #[error("Invalid command: {0}")]
22    InvalidCommand(String),
23
24    #[error("Wrong number of arguments for '{0}' command")]
25    WrongArity(String),
26
27    #[error("Configuration error: {0}")]
28    Config(String),
29
30    #[error("Server shutting down")]
31    Shutdown,
32
33    #[error("System error: {0}")]
34    System(String),
35
36    #[error(transparent)]
37    Other(#[from] anyhow::Error),
38}
39
40pub type Result<T> = std::result::Result<T, Error>;
41
42impl Error {
43    /// Convert error to Redis error response
44    pub fn to_resp(&self) -> Vec<u8> {
45        match self {
46            Error::Database(feoxdb::FeoxError::KeyNotFound) => {
47                b"$-1\r\n".to_vec() // Redis nil response
48            }
49            Error::WrongArity(cmd) => {
50                format!("-ERR wrong number of arguments for '{}' command\r\n", cmd).into_bytes()
51            }
52            Error::InvalidCommand(cmd) => {
53                format!("-ERR unknown command '{}'\r\n", cmd).into_bytes()
54            }
55            _ => format!("-ERR {}\r\n", self).into_bytes(),
56        }
57    }
58}
feox_server/error.rs

feox_server/
error.rs
