micro-wrapper-sql/conn.go
Vasiliy Tolstov b2eb8e6c5c complete meter
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2023-01-05 16:03:21 +03:00

323 lines
12 KiB
Go

package wrapper
import (
"context"
"database/sql/driver"
"fmt"
"time"
)
// wrapperConn defines a wrapper for driver.Conn
type wrapperConn struct {
conn driver.Conn
opts Options
}
// Prepare implements driver.Conn Prepare
func (w *wrapperConn) Prepare(query string) (driver.Stmt, error) {
labels := []string{labelMethod, "Prepare", labelQuery, labelUnknown}
ts := time.Now()
stmt, err := w.conn.Prepare(query)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return &wrapperStmt{stmt: stmt, opts: w.opts}, nil
}
// Close implements driver.Conn Close
func (w *wrapperConn) Close() error {
labels := []string{labelMethod, "Close"}
ts := time.Now()
err := w.conn.Close()
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return err
}
// Begin implements driver.Conn Begin
func (w *wrapperConn) Begin() (driver.Tx, error) {
labels := []string{labelMethod, "Begin"}
ts := time.Now()
// nolint:staticcheck
tx, err := w.conn.Begin()
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return &wrapperTx{tx: tx, opts: w.opts}, nil
}
// BeginTx implements driver.ConnBeginTx BeginTx
func (w *wrapperConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
nctx, span := w.opts.Tracer.Start(ctx, "BeginTx")
span.AddLabels("method", "BeginTx")
name := getQueryName(ctx)
if name != "" {
span.AddLabels("query", name)
} else {
name = labelUnknown
}
labels := []string{labelMethod, "BeginTx", labelQuery, name}
if connBeginTx, ok := w.conn.(driver.ConnBeginTx); ok {
ts := time.Now()
tx, err := connBeginTx.BeginTx(nctx, opts)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
return &wrapperTx{tx: tx, opts: w.opts, span: span}, nil
}
ts := time.Now()
// nolint:staticcheck
tx, err := w.conn.Begin()
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return tx, nil
}
// PrepareContext implements driver.ConnPrepareContext PrepareContext
func (w *wrapperConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
nctx, span := w.opts.Tracer.Start(ctx, "PrepareContext")
span.AddLabels("method", "PrepareContext")
name := getQueryName(ctx)
if name != "" {
span.AddLabels("query", name)
} else {
name = labelUnknown
}
labels := []string{labelMethod, "PrepareContext", labelQuery, name}
if connPrepareContext, ok := w.conn.(driver.ConnPrepareContext); ok {
ts := time.Now()
stmt, err := connPrepareContext.PrepareContext(nctx, query)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return &wrapperStmt{stmt: stmt, opts: w.opts}, nil
}
ts := time.Now()
stmt, err := w.conn.Prepare(query)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return stmt, nil
}
// Exec implements driver.Execer Exec
func (w *wrapperConn) Exec(query string, args []driver.Value) (driver.Result, error) {
// nolint:staticcheck
labels := []string{labelMethod, "Exec", labelQuery, labelUnknown}
if execer, ok := w.conn.(driver.Execer); ok {
ts := time.Now()
res, err := execer.Exec(query, args)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return res, err
}
return nil, ErrUnsupported
}
// Exec implements driver.StmtExecContext ExecContext
func (w *wrapperConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
nctx, span := w.opts.Tracer.Start(ctx, "ExecContext")
span.AddLabels("method", "ExecContext")
name := getQueryName(ctx)
if name != "" {
span.AddLabels("query", name)
} else {
name = labelUnknown
}
defer span.Finish()
if len(args) > 0 {
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "ExecContext", labelQuery, name}
if execerContext, ok := w.conn.(driver.ExecerContext); ok {
ts := time.Now()
res, err := execerContext.ExecContext(nctx, query, args)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return res, err
}
values, err := namedValueToValue(args)
if err != nil {
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
return nil, err
}
ts := time.Now()
// nolint:staticcheck
res, err := w.Exec(query, values)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return res, err
}
// Ping implements driver.Pinger Ping
func (w *wrapperConn) Ping(ctx context.Context) error {
if pinger, ok := w.conn.(driver.Pinger); ok {
nctx, span := w.opts.Tracer.Start(ctx, "Ping")
defer span.Finish()
labels := []string{labelMethod, "Ping"}
ts := time.Now()
err := pinger.Ping(nctx)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
return err
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
}
return ErrUnsupported
}
// Query implements driver.Queryer Query
func (w *wrapperConn) Query(query string, args []driver.Value) (driver.Rows, error) {
// nolint:staticcheck
if queryer, ok := w.conn.(driver.Queryer); ok {
labels := []string{labelMethod, "Query", labelQuery, labelUnknown}
ts := time.Now()
rows, err := queryer.Query(query, args)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return rows, err
}
return nil, ErrUnsupported
}
// QueryContext implements Driver.QueryerContext QueryContext
func (w *wrapperConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
nctx, span := w.opts.Tracer.Start(ctx, "QueryContext")
span.AddLabels("method", "QueryContext")
name := getQueryName(ctx)
if name != "" {
span.AddLabels("query", name)
} else {
name = labelUnknown
}
defer span.Finish()
if len(args) > 0 {
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "QueryContext", labelQuery, name}
if queryerContext, ok := w.conn.(driver.QueryerContext); ok {
ts := time.Now()
rows, err := queryerContext.QueryContext(nctx, query, args)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return rows, err
}
values, err := namedValueToValue(args)
if err != nil {
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
return nil, err
}
ts := time.Now()
// nolint:staticcheck
rows, err := w.Query(query, values)
te := time.Since(ts).Seconds()
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
} else {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
return rows, err
}