55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// Copyright 2023 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sqlutil
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import (
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"database/sql"
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"fmt"
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"github.com/matrix-org/dendrite/setup/config"
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)
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type Connections struct {
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db *sql.DB
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writer Writer
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}
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func NewConnectionManager() Connections {
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return Connections{}
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}
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func (c *Connections) Connection(dbProperties *config.DatabaseOptions) (*sql.DB, Writer, error) {
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writer := NewDummyWriter()
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if dbProperties.ConnectionString.IsSQLite() {
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writer = NewExclusiveWriter()
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}
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if dbProperties.ConnectionString != "" || c.db == nil {
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var err error
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// Open a new database connection using the supplied config.
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c.db, err = Open(dbProperties, writer)
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if err != nil {
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return nil, nil, err
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}
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c.writer = writer
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return c.db, c.writer, nil
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}
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if c.db != nil && c.writer != nil {
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// Ignore the supplied config and return the global pool and
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// writer.
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return c.db, c.writer, nil
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}
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return nil, nil, fmt.Errorf("no database connections configured")
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}
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