risingwave_frontend/catalog/
database_catalog.rs

1// Copyright 2025 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use std::collections::HashMap;
16
17use itertools::Itertools;
18use risingwave_pb::catalog::{PbDatabase, PbSchema};
19use risingwave_pb::user::grant_privilege::Object;
20
21use super::OwnedByUserCatalog;
22use crate::catalog::schema_catalog::SchemaCatalog;
23use crate::catalog::{DatabaseId, SchemaId, TableId};
24use crate::user::UserId;
25
26#[derive(Clone, Debug)]
27pub struct DatabaseCatalog {
28    id: DatabaseId,
29    pub name: String,
30    schema_by_name: HashMap<String, SchemaCatalog>,
31    schema_name_by_id: HashMap<SchemaId, String>,
32    pub owner: u32,
33    pub resource_group: String,
34    pub barrier_interval_ms: Option<u32>,
35    pub checkpoint_frequency: Option<u64>,
36}
37
38impl DatabaseCatalog {
39    pub fn create_schema(&mut self, proto: &PbSchema) {
40        let name = proto.name.clone();
41        let id = proto.id;
42        let schema = proto.into();
43        self.schema_by_name
44            .try_insert(name.clone(), schema)
45            .unwrap();
46        self.schema_name_by_id.try_insert(id, name).unwrap();
47    }
48
49    pub fn drop_schema(&mut self, schema_id: SchemaId) {
50        let name = self.schema_name_by_id.remove(&schema_id).unwrap();
51        self.schema_by_name.remove(&name).unwrap();
52    }
53
54    pub fn get_all_schema_names(&self) -> Vec<String> {
55        self.schema_by_name.keys().cloned().collect_vec()
56    }
57
58    pub fn iter_all_table_ids(&self) -> impl Iterator<Item = TableId> + '_ {
59        self.schema_by_name
60            .values()
61            .flat_map(|schema| schema.iter_all().map(|t| t.id()))
62    }
63
64    pub fn iter_schemas(&self) -> impl Iterator<Item = &SchemaCatalog> {
65        self.schema_by_name.values()
66    }
67
68    pub fn iter_schemas_mut(&mut self) -> impl Iterator<Item = &mut SchemaCatalog> {
69        self.schema_by_name.values_mut()
70    }
71
72    pub fn get_schema_by_name(&self, name: &str) -> Option<&SchemaCatalog> {
73        self.schema_by_name.get(name)
74    }
75
76    pub fn get_schema_by_id(&self, schema_id: &SchemaId) -> Option<&SchemaCatalog> {
77        self.schema_by_name
78            .get(self.schema_name_by_id.get(schema_id)?)
79    }
80
81    pub fn get_schema_mut(&mut self, schema_id: SchemaId) -> Option<&mut SchemaCatalog> {
82        let name = self.schema_name_by_id.get(&schema_id).unwrap();
83        self.schema_by_name.get_mut(name)
84    }
85
86    pub fn get_grant_object_by_oid(&self, oid: u32) -> Option<Object> {
87        for schema in self.schema_by_name.values() {
88            let object = schema.get_grant_object_by_oid(oid);
89            if object.is_some() {
90                return object;
91            }
92        }
93        None
94    }
95
96    pub fn update_schema(&mut self, prost: &PbSchema) {
97        let id = prost.id;
98        let name = prost.name.clone();
99
100        let old_schema_name = self.schema_name_by_id.get(&id).unwrap().to_owned();
101        if old_schema_name != name {
102            let mut schema = self.schema_by_name.remove(&old_schema_name).unwrap();
103            schema.name.clone_from(&name);
104            schema.database_id = prost.database_id;
105            schema.owner = prost.owner;
106            self.schema_by_name.insert(name.clone(), schema);
107            self.schema_name_by_id.insert(id, name);
108        } else {
109            let schema = self.get_schema_mut(id).unwrap();
110            schema.name.clone_from(&name);
111            schema.database_id = prost.database_id;
112            schema.owner = prost.owner;
113        };
114    }
115
116    pub fn id(&self) -> DatabaseId {
117        self.id
118    }
119
120    pub fn name(&self) -> &str {
121        &self.name
122    }
123
124    pub fn to_prost(&self) -> PbDatabase {
125        PbDatabase {
126            id: self.id,
127            name: self.name.clone(),
128            owner: self.owner,
129            resource_group: self.resource_group.clone(),
130            barrier_interval_ms: self.barrier_interval_ms,
131            checkpoint_frequency: self.checkpoint_frequency,
132        }
133    }
134}
135
136impl OwnedByUserCatalog for DatabaseCatalog {
137    fn owner(&self) -> UserId {
138        self.owner
139    }
140}
141
142impl From<&PbDatabase> for DatabaseCatalog {
143    fn from(db: &PbDatabase) -> Self {
144        Self {
145            id: db.id,
146            name: db.name.clone(),
147            schema_by_name: HashMap::new(),
148            schema_name_by_id: HashMap::new(),
149            owner: db.owner,
150            resource_group: db.resource_group.clone(),
151            barrier_interval_ms: db.barrier_interval_ms,
152            checkpoint_frequency: db.checkpoint_frequency,
153        }
154    }
155}
risingwave_frontend/catalog/database_catalog.rs

risingwave_frontend/catalog/
database_catalog.rs
