481 lines
16 KiB
Go
481 lines
16 KiB
Go
package wrapper
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import (
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"context"
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"database/sql/driver"
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"fmt"
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"time"
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"go.unistack.org/micro/v3/tracer"
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)
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var _ driver.Conn = &wrapperConn{}
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// wrapperConn defines a wrapper for driver.Conn
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type wrapperConn struct {
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d *wrapperDriver
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dname string
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conn driver.Conn
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opts Options
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ctx context.Context
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}
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// Prepare implements driver.Conn Prepare
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func (w *wrapperConn) Prepare(query string) (driver.Stmt, error) {
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var ctx context.Context
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if w.ctx != nil {
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ctx = w.ctx
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} else {
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ctx = context.Background()
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}
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labels := []string{labelMethod, "Prepare", labelQuery, labelUnknown}
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ts := time.Now()
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stmt, err := w.conn.Prepare(query)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return nil, err
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return &wrapperStmt{stmt: stmt, opts: w.opts, ctx: ctx}, nil
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}
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// Close implements driver.Conn Close
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func (w *wrapperConn) Close() error {
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var ctx context.Context
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if w.ctx != nil {
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ctx = w.ctx
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} else {
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ctx = context.Background()
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}
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labels := []string{labelMethod, "Close"}
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ts := time.Now()
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err := w.conn.Close()
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Close", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return err
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}
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// Begin implements driver.Conn Begin
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func (w *wrapperConn) Begin() (driver.Tx, error) {
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var ctx context.Context
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if w.ctx != nil {
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ctx = w.ctx
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} else {
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ctx = context.Background()
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}
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labels := []string{labelMethod, "Begin"}
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ts := time.Now()
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// nolint:staticcheck
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tx, err := w.conn.Begin()
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Begin", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return nil, err
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Begin", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return &wrapperTx{tx: tx, opts: w.opts, ctx: ctx}, nil
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}
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// BeginTx implements driver.ConnBeginTx BeginTx
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func (w *wrapperConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
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nctx, span := w.opts.Tracer.Start(ctx, "Transaction")
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span.AddLabels("method", "BeginTx")
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name := getQueryName(ctx)
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if name != "" {
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span.AddLabels("query", name)
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} else {
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name = labelUnknown
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}
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labels := []string{labelMethod, "BeginTx", labelQuery, name}
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if connBeginTx, ok := w.conn.(driver.ConnBeginTx); ok {
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ts := time.Now()
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tx, err := connBeginTx.BeginTx(nctx, opts)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return nil, err
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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w.ctx = nctx
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return &wrapperTx{ctx: ctx, tx: tx, opts: w.opts, span: span, conn: w}, nil
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}
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ts := time.Now()
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// nolint:staticcheck
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tx, err := w.conn.Begin()
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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w.ctx = nctx
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return &wrapperTx{ctx: ctx, tx: tx, opts: w.opts, span: span, conn: w}, nil
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}
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// PrepareContext implements driver.ConnPrepareContext PrepareContext
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func (w *wrapperConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
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var nctx context.Context
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var span tracer.Span
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if w.ctx != nil {
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nctx, span = w.opts.Tracer.Start(w.ctx, "PrepareContext")
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} else {
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nctx, span = w.opts.Tracer.Start(ctx, "PrepareContext")
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}
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span.AddLabels("method", "PrepareContext")
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name := getQueryName(ctx)
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if name != "" {
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span.AddLabels("query", name)
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} else {
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name = labelUnknown
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}
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labels := []string{labelMethod, "PrepareContext", labelQuery, name}
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if conn, ok := w.conn.(driver.ConnPrepareContext); ok {
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ts := time.Now()
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stmt, err := conn.PrepareContext(nctx, query)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return nil, err
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return &wrapperStmt{stmt: stmt, opts: w.opts, ctx: nctx}, nil
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}
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ts := time.Now()
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stmt, err := w.conn.Prepare(query)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return stmt, nil
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}
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// Exec implements driver.Execer Exec
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func (w *wrapperConn) Exec(query string, args []driver.Value) (driver.Result, error) {
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var ctx context.Context
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if w.ctx != nil {
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ctx = w.ctx
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} else {
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ctx = context.Background()
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}
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// nolint:staticcheck
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execer, ok := w.conn.(driver.Execer)
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if !ok {
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return nil, driver.ErrSkip
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}
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labels := []string{labelMethod, "Exec", labelQuery, labelUnknown}
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ts := time.Now()
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res, err := execer.Exec(query, args)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Exec", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return res, err
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}
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// Exec implements driver.StmtExecContext ExecContext
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func (w *wrapperConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
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var nctx context.Context
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var span tracer.Span
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if w.ctx != nil {
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nctx, span = w.opts.Tracer.Start(w.ctx, "ExecContext")
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} else {
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nctx, span = w.opts.Tracer.Start(ctx, "ExecContext")
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}
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span.AddLabels("method", "ExecContext")
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name := getQueryName(ctx)
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if name != "" {
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span.AddLabels("query", name)
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} else {
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name = labelUnknown
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}
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defer span.Finish()
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if len(args) > 0 {
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span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
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}
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labels := []string{labelMethod, "ExecContext", labelQuery, name}
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if conn, ok := w.conn.(driver.ExecerContext); ok {
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ts := time.Now()
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res, err := conn.ExecContext(nctx, query, args)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return res, err
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}
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values, err := namedValueToValue(args)
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if err != nil {
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", labelUnknown, 0, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return nil, err
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}
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ts := time.Now()
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// nolint:staticcheck
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res, err := w.Exec(query, values)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return res, err
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}
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// Ping implements driver.Pinger Ping
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func (w *wrapperConn) Ping(ctx context.Context) error {
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conn, ok := w.conn.(driver.Pinger)
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if !ok {
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wc, err := w.d.Open(w.dname)
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if err != nil {
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return err
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}
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return wc.Close()
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}
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var nctx context.Context
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var span tracer.Span
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if w.ctx != nil {
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nctx, span = w.opts.Tracer.Start(w.ctx, "Ping")
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} else {
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nctx, span = w.opts.Tracer.Start(ctx, "Ping")
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}
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defer span.Finish()
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labels := []string{labelMethod, "Ping"}
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ts := time.Now()
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err := conn.Ping(nctx)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Ping", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return err
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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return nil
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}
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// Query implements driver.Queryer Query
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func (w *wrapperConn) Query(query string, args []driver.Value) (driver.Rows, error) {
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var ctx context.Context
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if w.ctx != nil {
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ctx = w.ctx
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} else {
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ctx = context.Background()
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}
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//nolint:staticcheck
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conn, ok := w.conn.(driver.Queryer)
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if !ok {
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return nil, driver.ErrSkip
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}
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labels := []string{labelMethod, "Query", labelQuery, labelUnknown}
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ts := time.Now()
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rows, err := conn.Query(query, args)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
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w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
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if w.opts.LoggerEnabled {
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w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Query", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
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}
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return rows, err
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}
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// QueryContext implements Driver.QueryerContext QueryContext
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func (w *wrapperConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
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var nctx context.Context
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var span tracer.Span
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if w.ctx != nil {
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nctx, span = w.opts.Tracer.Start(w.ctx, "QueryContext")
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} else {
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nctx, span = w.opts.Tracer.Start(ctx, "QueryContext")
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}
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span.AddLabels("method", "QueryContext")
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name := getQueryName(ctx)
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if name != "" {
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span.AddLabels("query", name)
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} else {
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name = labelUnknown
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}
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defer span.Finish()
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if len(args) > 0 {
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span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
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}
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labels := []string{labelMethod, "QueryContext", labelQuery, name}
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if conn, ok := w.conn.(driver.QueryerContext); ok {
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ts := time.Now()
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rows, err := conn.QueryContext(nctx, query, args)
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td := time.Since(ts)
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te := td.Seconds()
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if err != nil {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
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span.AddLabels("error", true)
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span.AddLabels("err", err.Error())
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} else {
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w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
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}
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w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
|
|
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
|
|
if w.opts.LoggerEnabled {
|
|
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "QueryContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
|
|
}
|
|
return rows, err
|
|
}
|
|
values, err := namedValueToValue(args)
|
|
if err != nil {
|
|
span.AddLabels("error", true)
|
|
span.AddLabels("err", err.Error())
|
|
if w.opts.LoggerEnabled {
|
|
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "QueryContext", name, 0, err)...).Log(ctx, w.opts.LoggerLevel)
|
|
}
|
|
return nil, err
|
|
}
|
|
ts := time.Now()
|
|
// nolint:staticcheck
|
|
rows, err := w.Query(query, values)
|
|
td := time.Since(ts)
|
|
te := td.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)
|
|
if w.opts.LoggerEnabled {
|
|
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "QueryContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
|
|
}
|
|
return rows, err
|
|
}
|