risingwave_frontend/catalog/system_catalog/rw_catalog/
rw_sources.rs

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// Copyright 2024 RisingWave Labs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use risingwave_common::types::{Fields, Timestamptz};
use risingwave_frontend_macro::system_catalog;
use risingwave_pb::user::grant_privilege::Object;

use crate::catalog::system_catalog::{get_acl_items, SysCatalogReaderImpl};
use crate::error::Result;
use crate::handler::create_source::UPSTREAM_SOURCE_KEY;

#[derive(Fields)]
struct RwSource {
    #[primary_key]
    id: i32,
    name: String,
    schema_id: i32,
    owner: i32,
    connector: String,
    columns: Vec<String>,
    format: Option<String>,
    row_encode: Option<String>,
    append_only: bool,
    associated_table_id: Option<i32>,
    connection_id: Option<i32>,
    definition: String,
    acl: Vec<String>,
    initialized_at: Option<Timestamptz>,
    created_at: Option<Timestamptz>,
    initialized_at_cluster_version: Option<String>,
    created_at_cluster_version: Option<String>,
    is_shared: bool,
}

#[system_catalog(table, "rw_catalog.rw_sources")]
fn read_rw_sources_info(reader: &SysCatalogReaderImpl) -> Result<Vec<RwSource>> {
    let catalog_reader = reader.catalog_reader.read_guard();
    let schemas = catalog_reader.iter_schemas(&reader.auth_context.database)?;
    let user_reader = reader.user_info_reader.read_guard();
    let users = user_reader.get_all_users();
    let username_map = user_reader.get_user_name_map();

    Ok(schemas
        .flat_map(|schema| {
            schema.iter_source().map(|source| RwSource {
                id: source.id as i32,
                name: source.name.clone(),
                schema_id: schema.id() as i32,
                owner: source.owner as i32,
                connector: source
                    .with_properties
                    .get(UPSTREAM_SOURCE_KEY)
                    .cloned()
                    .unwrap_or("".to_string())
                    .to_uppercase(),
                columns: source.columns.iter().map(|c| c.name().into()).collect(),
                format: source
                    .info
                    .get_format()
                    .ok()
                    .map(|format| format.as_str_name().into()),
                row_encode: source
                    .info
                    .get_row_encode()
                    .ok()
                    .map(|row_encode| row_encode.as_str_name().into()),
                append_only: source.append_only,
                associated_table_id: source.associated_table_id.map(|id| id.table_id as i32),
                connection_id: source.connection_id.map(|id| id as i32),
                definition: source.create_sql(),
                acl: get_acl_items(&Object::SourceId(source.id), false, &users, username_map),
                initialized_at: source.initialized_at_epoch.map(|e| e.as_timestamptz()),
                created_at: source.created_at_epoch.map(|e| e.as_timestamptz()),
                initialized_at_cluster_version: source.initialized_at_cluster_version.clone(),
                created_at_cluster_version: source.created_at_cluster_version.clone(),
                is_shared: source.info.is_shared(),
            })
        })
        .collect())
}