84 lines
1.5 KiB
Rust
84 lines
1.5 KiB
Rust
use crate::err::Error;
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use serde::{Deserialize, Serialize};
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use storekey::{deserialize, serialize};
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#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Serialize, Deserialize)]
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pub struct Db {
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__: u8,
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_a: u8,
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pub ns: String,
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_b: u8,
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_c: u8,
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_d: u8,
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pub db: String,
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}
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impl From<Db> for Vec<u8> {
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fn from(val: Db) -> Vec<u8> {
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val.encode().unwrap()
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}
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}
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impl From<Vec<u8>> for Db {
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fn from(val: Vec<u8>) -> Self {
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Db::decode(&val).unwrap()
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}
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}
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impl From<&Vec<u8>> for Db {
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fn from(val: &Vec<u8>) -> Self {
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Db::decode(val).unwrap()
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}
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}
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pub fn new(ns: &str, db: &str) -> Db {
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Db::new(ns.to_string(), db.to_string())
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}
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pub fn prefix(ns: &str) -> Vec<u8> {
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let mut k = super::namespace::new(ns).encode().unwrap();
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k.extend_from_slice(&[0x21, 0x64, 0x62, 0x00]);
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k
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}
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pub fn suffix(ns: &str) -> Vec<u8> {
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let mut k = super::namespace::new(ns).encode().unwrap();
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k.extend_from_slice(&[0x21, 0x64, 0x62, 0xff]);
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k
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}
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impl Db {
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pub fn new(ns: String, db: String) -> Db {
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Db {
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__: 0x2f, // /
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_a: 0x2a, // *
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ns,
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_b: 0x21, // !
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_c: 0x64, // d
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_d: 0x62, // b
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db,
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}
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}
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pub fn encode(&self) -> Result<Vec<u8>, Error> {
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Ok(serialize(self)?)
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}
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pub fn decode(v: &[u8]) -> Result<Db, Error> {
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Ok(deserialize(v)?)
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}
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}
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#[cfg(test)]
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mod tests {
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#[test]
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fn key() {
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use super::*;
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#[rustfmt::skip]
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let val = Db::new(
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"test".to_string(),
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"test".to_string(),
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);
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let enc = Db::encode(&val).unwrap();
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let dec = Db::decode(&enc).unwrap();
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assert_eq!(val, dec);
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}
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}
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