mirror of
https://github.com/1f349/dendrite.git
synced 2024-11-22 19:51:39 +00:00
c1bca95adb
* Add SQL tracing via DENDRITE_TRACE_SQL Add this to `internal/sqlutil` in preparation for #897 * Not entirely
90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// 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.
|
|
|
|
package sqlutil
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"database/sql/driver"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/ngrok/sqlmw"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
var tracingEnabled = os.Getenv("DENDRITE_TRACE_SQL") == "1"
|
|
|
|
type traceInterceptor struct {
|
|
sqlmw.NullInterceptor
|
|
}
|
|
|
|
func (in *traceInterceptor) StmtQueryContext(ctx context.Context, stmt driver.StmtQueryContext, query string, args []driver.NamedValue) (driver.Rows, error) {
|
|
startedAt := time.Now()
|
|
rows, err := stmt.QueryContext(ctx, args)
|
|
|
|
logrus.WithField("duration", time.Since(startedAt)).WithField(logrus.ErrorKey, err).Debug("executed sql query ", query, " args: ", args)
|
|
|
|
return rows, err
|
|
}
|
|
|
|
func (in *traceInterceptor) StmtExecContext(ctx context.Context, stmt driver.StmtExecContext, query string, args []driver.NamedValue) (driver.Result, error) {
|
|
startedAt := time.Now()
|
|
result, err := stmt.ExecContext(ctx, args)
|
|
|
|
logrus.WithField("duration", time.Since(startedAt)).WithField(logrus.ErrorKey, err).Debug("executed sql query ", query, " args: ", args)
|
|
|
|
return result, err
|
|
}
|
|
|
|
func (in *traceInterceptor) RowsNext(c context.Context, rows driver.Rows, dest []driver.Value) error {
|
|
err := rows.Next(dest)
|
|
if err == io.EOF {
|
|
// For all cases, we call Next() n+1 times, the first to populate the initial dest, then eventually
|
|
// it will io.EOF. If we log on each Next() call we log the last element twice, so don't.
|
|
return err
|
|
}
|
|
cols := rows.Columns()
|
|
logrus.Debug(strings.Join(cols, " | "))
|
|
|
|
b := strings.Builder{}
|
|
for i, val := range dest {
|
|
b.WriteString(fmt.Sprintf("%v", val))
|
|
if i+1 <= len(dest)-1 {
|
|
b.WriteString(" | ")
|
|
}
|
|
}
|
|
logrus.Debug(b.String())
|
|
return err
|
|
}
|
|
|
|
// Open opens a database specified by its database driver name and a driver-specific data source name,
|
|
// usually consisting of at least a database name and connection information. Includes tracing driver
|
|
// if DENDRITE_TRACE_SQL=1
|
|
func Open(driverName, dsn string) (*sql.DB, error) {
|
|
if tracingEnabled {
|
|
// install the wrapped driver
|
|
driverName += "-trace"
|
|
}
|
|
return sql.Open(driverName, dsn)
|
|
}
|
|
|
|
func init() {
|
|
registerDrivers()
|
|
}
|