New model for buckets

src/model/bucket_alias_table.rs

@@ -0,0 +1,68 @@
+use serde::{Deserialize, Serialize};
+
+use garage_table::crdt::*;
+use garage_table::*;
+use garage_util::data::*;
+
+/// The bucket alias table holds the names given to buckets
+/// in the global namespace.
+#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
+pub struct BucketAlias {
+	pub name: String,
+	pub state: crdt::Lww<crdt::Deletable<AliasParams>>,
+}
+
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
+pub struct AliasParams {
+	pub bucket_id: Uuid,
+	pub website_access: bool,
+}
+
+impl AutoCrdt for AliasParams {
+	const WARN_IF_DIFFERENT: bool = true;
+}
+
+impl BucketAlias {
+	pub fn new(name: String, bucket_id: Uuid, website_access: bool) -> Self {
+		BucketAlias {
+			name,
+			state: crdt::Lww::new(crdt::Deletable::present(AliasParams {
+				bucket_id,
+				website_access,
+			})),
+		}
+	}
+	pub fn is_deleted(&self) -> bool {
+		self.state.get().is_deleted()
+	}
+}
+
+impl Crdt for BucketAlias {
+	fn merge(&mut self, o: &Self) {
+		self.state.merge(&o.state);
+	}
+}
+
+impl Entry<EmptyKey, String> for BucketAlias {
+	fn partition_key(&self) -> &EmptyKey {
+		&EmptyKey
+	}
+	fn sort_key(&self) -> &String {
+		&self.name
+	}
+}
+
+pub struct BucketAliasTable;
+
+impl TableSchema for BucketAliasTable {
+	const TABLE_NAME: &'static str = "bucket_alias";
+
+	type P = EmptyKey;
+	type S = String;
+	type E = BucketAlias;
+	type Filter = DeletedFilter;
+
+	fn matches_filter(entry: &Self::E, filter: &Self::Filter) -> bool {
+		filter.apply(entry.is_deleted())
+	}
+}