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tenant.go
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tenant.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package tenant
import (
"fmt"
"sync"
)
import (
"github.com/arana-db/arana/pkg/config"
"github.com/arana-db/arana/pkg/proto"
)
var (
lock sync.RWMutex
_tenantSysDB = make(map[string]*tenantSysInfo)
)
type tenantSysInfo struct {
Conf *config.Node
DB proto.DB
}
func RegisterSysDB(tenant string, conf *config.Node, db proto.DB) {
lock.Lock()
defer lock.Unlock()
if _, ok := _tenantSysDB[tenant]; ok {
return
}
_tenantSysDB[tenant] = &tenantSysInfo{
Conf: conf,
DB: db,
}
}
func LoadSysDB(tenant string) (proto.DB, error) {
lock.RLock()
defer lock.RUnlock()
val, ok := _tenantSysDB[tenant]
if !ok {
return nil, fmt.Errorf("cannot load sysdb: tenant=%s", tenant)
}
return val.DB, nil
}