forked from Deuxfleurs/garage
63 lines
1.6 KiB
Rust
63 lines
1.6 KiB
Rust
use serde::{Deserialize, Serialize};
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use garage_table::crdt::Crdt;
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use garage_table::*;
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use super::key_table::PermissionSet;
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/// A bucket is a collection of objects
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///
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/// Its parameters are not directly accessible as:
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/// - It must be possible to merge paramaters, hence the use of a LWW CRDT.
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/// - A bucket has 2 states, Present or Deleted and parameters make sense only if present.
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#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
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pub struct Bucket {
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/// Name of the bucket
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pub name: String,
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/// State, and configuration if not deleted, of the bucket
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pub state: crdt::Lww<BucketState>,
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}
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/// State of a bucket
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#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
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pub enum BucketState {
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/// The bucket is deleted
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Deleted,
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/// The bucket exists
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Present(BucketParams),
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}
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impl Crdt for BucketState {
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fn merge(&mut self, o: &Self) {
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match o {
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BucketState::Deleted => *self = BucketState::Deleted,
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BucketState::Present(other_params) => {
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if let BucketState::Present(params) = self {
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params.merge(other_params);
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}
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}
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}
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}
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}
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/// Configuration for a bucket
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#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
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pub struct BucketParams {
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/// Map of key with access to the bucket, and what kind of access they give
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pub authorized_keys: crdt::LwwMap<String, PermissionSet>,
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/// Is the bucket served as http
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pub website: crdt::Lww<bool>,
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}
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impl Crdt for BucketParams {
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fn merge(&mut self, o: &Self) {
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self.authorized_keys.merge(&o.authorized_keys);
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self.website.merge(&o.website);
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}
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}
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impl Crdt for Bucket {
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fn merge(&mut self, other: &Self) {
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self.state.merge(&other.state);
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}
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}
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