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}
35
36impl DatabaseCatalog {
37    pub fn create_schema(&mut self, proto: &PbSchema) {
38        let name = proto.name.clone();
39        let id = proto.id;
40        let schema = proto.into();
41        self.schema_by_name
42            .try_insert(name.clone(), schema)
43            .unwrap();
44        self.schema_name_by_id.try_insert(id, name).unwrap();
45    }
46
47    pub fn drop_schema(&mut self, schema_id: SchemaId) {
48        let name = self.schema_name_by_id.remove(&schema_id).unwrap();
49        self.schema_by_name.remove(&name).unwrap();
50    }
51
52    pub fn get_all_schema_names(&self) -> Vec<String> {
53        self.schema_by_name.keys().cloned().collect_vec()
54    }
55
56    pub fn iter_all_table_ids(&self) -> impl Iterator<Item = TableId> + '_ {
57        self.schema_by_name
58            .values()
59            .flat_map(|schema| schema.iter_all().map(|t| t.id()))
60    }
61
62    pub fn iter_schemas(&self) -> impl Iterator<Item = &SchemaCatalog> {
63        self.schema_by_name.values()
64    }
65
66    pub fn iter_schemas_mut(&mut self) -> impl Iterator<Item = &mut SchemaCatalog> {
67        self.schema_by_name.values_mut()
68    }
69
70    pub fn get_schema_by_name(&self, name: &str) -> Option<&SchemaCatalog> {
71        self.schema_by_name.get(name)
72    }
73
74    pub fn get_schema_by_id(&self, schema_id: &SchemaId) -> Option<&SchemaCatalog> {
75        self.schema_by_name
76            .get(self.schema_name_by_id.get(schema_id)?)
77    }
78
79    pub fn get_schema_mut(&mut self, schema_id: SchemaId) -> Option<&mut SchemaCatalog> {
80        let name = self.schema_name_by_id.get(&schema_id).unwrap();
81        self.schema_by_name.get_mut(name)
82    }
83
84    pub fn get_grant_object_by_oid(&self, oid: u32) -> Option<Object> {
85        for schema in self.schema_by_name.values() {
86            let object = schema.get_grant_object_by_oid(oid);
87            if object.is_some() {
88                return object;
89            }
90        }
91        None
92    }
93
94    pub fn update_schema(&mut self, prost: &PbSchema) {
95        let id = prost.id;
96        let name = prost.name.clone();
97
98        let old_schema_name = self.schema_name_by_id.get(&id).unwrap().to_owned();
99        if old_schema_name != name {
100            let mut schema = self.schema_by_name.remove(&old_schema_name).unwrap();
101            schema.name.clone_from(&name);
102            schema.database_id = prost.database_id;
103            schema.owner = prost.owner;
104            self.schema_by_name.insert(name.clone(), schema);
105            self.schema_name_by_id.insert(id, name);
106        } else {
107            let schema = self.get_schema_mut(id).unwrap();
108            schema.name.clone_from(&name);
109            schema.database_id = prost.database_id;
110            schema.owner = prost.owner;
111        };
112    }
113
114    pub fn id(&self) -> DatabaseId {
115        self.id
116    }
117
118    pub fn name(&self) -> &str {
119        &self.name
120    }
121}
122
123impl OwnedByUserCatalog for DatabaseCatalog {
124    fn owner(&self) -> UserId {
125        self.owner
126    }
127}
128
129impl From<&PbDatabase> for DatabaseCatalog {
130    fn from(db: &PbDatabase) -> Self {
131        Self {
132            id: db.id,
133            name: db.name.clone(),
134            schema_by_name: HashMap::new(),
135            schema_name_by_id: HashMap::new(),
136            owner: db.owner,
137            resource_group: db.resource_group.clone(),
138        }
139    }
140}
risingwave_frontend/catalog/database_catalog.rs

risingwave_frontend/catalog/
database_catalog.rs
