use std::borrow::Cow;
use anyhow::Result;
use storekey::{BorrowDecode, Encode};
use crate::catalog;
use crate::catalog::{DatabaseId, NamespaceId};
use crate::key::category::{Categorise, Category};
use crate::kvs::{KVKey, impl_kv_key_storekey};
#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Encode, BorrowDecode)]
pub(crate) struct Az<'a> {
__: u8,
_a: u8,
pub ns: NamespaceId,
_b: u8,
pub db: DatabaseId,
_c: u8,
_d: u8,
_e: u8,
pub az: Cow<'a, str>,
}
impl_kv_key_storekey!(Az<'_> => catalog::AnalyzerDefinition);
pub fn new(ns: NamespaceId, db: DatabaseId, az: &str) -> Az<'_> {
Az::new(ns, db, az)
}
pub fn prefix(ns: NamespaceId, db: DatabaseId) -> Result<Vec<u8>> {
let mut k = super::all::new(ns, db).encode_key()?;
k.extend_from_slice(b"!az\x00");
Ok(k)
}
pub fn suffix(ns: NamespaceId, db: DatabaseId) -> Result<Vec<u8>> {
let mut k = super::all::new(ns, db).encode_key()?;
k.extend_from_slice(b"!az\xff");
Ok(k)
}
impl Categorise for Az<'_> {
fn categorise(&self) -> Category {
Category::DatabaseAnalyzer
}
}
impl<'a> Az<'a> {
pub fn new(ns: NamespaceId, db: DatabaseId, az: &'a str) -> Self {
Self {
__: b'/',
_a: b'*',
ns,
_b: b'*',
db,
_c: b'!',
_d: b'a',
_e: b'z',
az: Cow::Borrowed(az),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn key() {
let val = Az::new(NamespaceId(1), DatabaseId(2), "test");
let enc = Az::encode_key(&val).unwrap();
assert_eq!(enc, b"/*\x00\x00\x00\x01*\x00\x00\x00\x02!aztest\0");
}
#[test]
fn prefix() {
let val = super::prefix(NamespaceId(1), DatabaseId(2)).unwrap();
assert_eq!(val, b"/*\x00\x00\x00\x01*\x00\x00\x00\x02!az\0");
}
#[test]
fn suffix() {
let val = super::suffix(NamespaceId(1), DatabaseId(2)).unwrap();
assert_eq!(val, b"/*\x00\x00\x00\x01*\x00\x00\x00\x02!az\xff");
}
}