1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
use async_trait::async_trait;
use serde::{Deserialize, Serialize};
use crate::table::*;
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
pub struct Bucket {
// Primary key
pub name: String,
// Timestamp and deletion
// Upon version increment, all info is replaced
pub timestamp: u64,
pub deleted: bool,
// Authorized keys
pub authorized_keys: Vec<AllowedKey>,
}
#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
pub struct AllowedKey {
pub access_key_id: String,
pub timestamp: u64,
pub allowed_read: bool,
pub allowed_write: bool,
}
impl Entry<EmptyKey, String> for Bucket {
fn partition_key(&self) -> &EmptyKey {
&EmptyKey
}
fn sort_key(&self) -> &String {
&self.name
}
fn merge(&mut self, other: &Self) {
if other.timestamp < self.timestamp {
*self = other.clone();
return;
}
if self.timestamp > other.timestamp {
return;
}
for ak in other.authorized_keys.iter() {
match self
.authorized_keys
.binary_search_by(|our_ak| our_ak.access_key_id.cmp(&ak.access_key_id))
{
Ok(i) => {
let our_ak = &mut self.authorized_keys[i];
if ak.timestamp > our_ak.timestamp {
our_ak.timestamp = ak.timestamp;
our_ak.allowed_read = ak.allowed_read;
our_ak.allowed_write = ak.allowed_write;
}
}
Err(i) => {
self.authorized_keys.insert(i, ak.clone());
}
}
}
}
}
pub struct BucketTable;
#[async_trait]
impl TableSchema for BucketTable {
type P = EmptyKey;
type S = String;
type E = Bucket;
type Filter = ();
async fn updated(&self, _old: Option<Self::E>, _new: Option<Self::E>) {}
fn matches_filter(entry: &Self::E, _filter: &Self::Filter) -> bool {
!entry.deleted
}
}
|
