unistack-org/micro-wrapper-sql
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use generated interface #76

Merged
vtolstov merged 1 commits from generator into master 2023-06-10 13:10:17 +03:00
Conversation 0 Commits 1 Files Changed 13 +21263 -233
13 changed files with 21263 additions and 233 deletions
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Showing only changes of commit dbce4a1d9e - Show all commits

2
common.go
View File

@ -6,6 +6,8 @@ import (
"fmt"
)
//go:generate sh -c "go run gen.go > wrap_gen.go"
// namedValueToValue converts driver arguments of NamedValue format to Value format. Implemented in the same way as in
// database/sql ctxutil.go.
func namedValueToValue(named []driver.NamedValue) ([]driver.Value, error) {

304
conn.go
View File

@ -6,10 +6,23 @@ import (
"fmt"
"time"
"go.unistack.org/micro/v3/tracer"
"go.unistack.org/micro/v4/tracer"
)
var _ driver.Conn = &wrapperConn{}
var (
_ driver.Conn = (*wrapperConn)(nil)
_ driver.ConnBeginTx = (*wrapperConn)(nil)
_ driver.ConnPrepareContext = (*wrapperConn)(nil)
_ driver.Pinger = (*wrapperConn)(nil)
_ driver.Validator = (*wrapperConn)(nil)
_ driver.Queryer = (*wrapperConn)(nil)
_ driver.QueryerContext = (*wrapperConn)(nil)
_ driver.Execer = (*wrapperConn)(nil)
_ driver.ExecerContext = (*wrapperConn)(nil)
// _ driver.Connector
// _ driver.Driver
// _ driver.DriverContext
)
// wrapperConn defines a wrapper for driver.Conn
type wrapperConn struct {
@ -18,41 +31,7 @@ type wrapperConn struct {
conn driver.Conn
opts Options
ctx context.Context
}
// Prepare implements driver.Conn Prepare
func (w *wrapperConn) Prepare(query string) (driver.Stmt, error) {
var ctx context.Context
if w.ctx != nil {
ctx = w.ctx
} else {
ctx = context.Background()
}
labels := []string{labelMethod, "Prepare", labelQuery, labelUnknown}
ts := time.Now()
stmt, err := w.conn.Prepare(query)
td := time.Since(ts)
te := td.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)
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
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)
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return &wrapperStmt{stmt: stmt, opts: w.opts, ctx: ctx}, nil
span tracer.Span
}
// Close implements driver.Conn Close
@ -77,7 +56,7 @@ func (w *wrapperConn) Close() error {
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Close", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
@ -95,15 +74,14 @@ func (w *wrapperConn) Begin() (driver.Tx, error) {
labels := []string{labelMethod, "Begin"}
ts := time.Now()
// nolint:staticcheck
tx, err := w.conn.Begin()
tx, err := w.conn.Begin() // nolint:staticcheck
td := time.Since(ts)
te := td.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)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Begin", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return nil, err
@ -111,9 +89,10 @@ func (w *wrapperConn) Begin() (driver.Tx, 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)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Begin", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return &wrapperTx{tx: tx, opts: w.opts, ctx: ctx}, nil
}
@ -128,32 +107,14 @@ func (w *wrapperConn) BeginTx(ctx context.Context, opts driver.TxOptions) (drive
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)
td := time.Since(ts)
te := td.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())
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
w.ctx = nctx
return &wrapperTx{ctx: ctx, tx: tx, opts: w.opts, span: span, conn: w}, nil
connBeginTx, ok := w.conn.(driver.ConnBeginTx)
if !ok {
return w.Begin()
}
ts := time.Now()
// nolint:staticcheck
tx, err := w.conn.Begin()
tx, err := connBeginTx.BeginTx(nctx, opts)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -162,15 +123,51 @@ func (w *wrapperConn) BeginTx(ctx context.Context, opts driver.TxOptions) (drive
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return nil, err
}
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelSuccess)...).Inc()
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return &wrapperTx{tx: tx, opts: w.opts, ctx: ctx, span: span}, nil
}
// Prepare implements driver.Conn Prepare
func (w *wrapperConn) Prepare(query string) (driver.Stmt, error) {
var ctx context.Context
if w.ctx != nil {
ctx = w.ctx
} else {
ctx = context.Background()
}
labels := []string{labelMethod, "Prepare", labelQuery, labelUnknown}
ts := time.Now()
stmt, err := w.conn.Prepare(query)
td := time.Since(ts)
te := td.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)
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
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)
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "BeginTx", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Prepare", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
w.ctx = nctx
return &wrapperTx{ctx: ctx, tx: tx, opts: w.opts, span: span, conn: w}, nil
return wrapStmt(stmt, query, w.opts), nil
}
// PrepareContext implements driver.ConnPrepareContext PrepareContext
@ -189,33 +186,15 @@ func (w *wrapperConn) PrepareContext(ctx context.Context, query string) (driver.
} else {
name = labelUnknown
}
labels := []string{labelMethod, "PrepareContext", labelQuery, name}
if conn, ok := w.conn.(driver.ConnPrepareContext); ok {
ts := time.Now()
stmt, err := conn.PrepareContext(nctx, query)
td := time.Since(ts)
te := td.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())
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
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)
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return &wrapperStmt{stmt: stmt, opts: w.opts, ctx: nctx}, nil
conn, ok := w.conn.(driver.ConnPrepareContext)
if !ok {
return w.Prepare(query)
}
ts := time.Now()
stmt, err := w.conn.Prepare(query)
stmt, err := conn.PrepareContext(nctx, query)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -224,14 +203,19 @@ func (w *wrapperConn) PrepareContext(ctx context.Context, query string) (driver.
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
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)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "PrepareContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return stmt, nil
return wrapStmt(stmt, query, w.opts), nil
}
// Exec implements driver.Execer Exec
@ -242,15 +226,16 @@ func (w *wrapperConn) Exec(query string, args []driver.Value) (driver.Result, er
} else {
ctx = context.Background()
}
labels := []string{labelMethod, "Exec", labelQuery, labelUnknown}
// nolint:staticcheck
execer, ok := w.conn.(driver.Execer)
conn, ok := w.conn.(driver.Execer)
if !ok {
return nil, driver.ErrSkip
}
labels := []string{labelMethod, "Exec", labelQuery, labelUnknown}
ts := time.Now()
res, err := execer.Exec(query, args)
res, err := conn.Exec(query, args)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -260,7 +245,7 @@ func (w *wrapperConn) Exec(query string, args []driver.Value) (driver.Result, er
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Exec", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, err
@ -270,6 +255,7 @@ func (w *wrapperConn) Exec(query string, args []driver.Value) (driver.Result, er
func (w *wrapperConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
var nctx context.Context
var span tracer.Span
if w.ctx != nil {
nctx, span = w.opts.Tracer.Start(w.ctx, "ExecContext")
} else {
@ -287,38 +273,16 @@ func (w *wrapperConn) ExecContext(ctx context.Context, query string, args []driv
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "ExecContext", labelQuery, name}
if conn, ok := w.conn.(driver.ExecerContext); ok {
ts := time.Now()
res, err := conn.ExecContext(nctx, query, args)
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.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, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, 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, "ExecContext", labelUnknown, 0, err)...).Log(ctx, w.opts.LoggerLevel)
}
return nil, err
fmt.Printf("EXECCONTETX args %#+v\n", args)
conn, ok := w.conn.(driver.ExecerContext)
if !ok {
// nolint:staticcheck
return nil, driver.ErrSkip
}
ts := time.Now()
// nolint:staticcheck
res, err := w.Exec(query, values)
res, err := conn.ExecContext(nctx, query, args)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -328,23 +292,27 @@ func (w *wrapperConn) ExecContext(ctx context.Context, query string, args []driv
} 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)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, err
}
// Ping implements driver.Pinger Ping
func (w *wrapperConn) Ping(ctx context.Context) error {
conn, ok := w.conn.(driver.Pinger)
if !ok {
wc, err := w.d.Open(w.dname)
// fallback path to check db alive
pc, err := w.d.Open(w.dname)
if err != nil {
return err
}
return wc.Close()
return pc.Close()
}
var nctx context.Context
@ -364,7 +332,7 @@ func (w *wrapperConn) Ping(ctx context.Context) error {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Ping", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return err
@ -385,8 +353,7 @@ func (w *wrapperConn) Query(query string, args []driver.Value) (driver.Rows, err
} else {
ctx = context.Background()
}
//nolint:staticcheck
// nolint:staticcheck
conn, ok := w.conn.(driver.Queryer)
if !ok {
return nil, driver.ErrSkip
@ -404,7 +371,7 @@ func (w *wrapperConn) Query(query string, args []driver.Value) (driver.Rows, err
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Query", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return rows, err
@ -431,37 +398,13 @@ func (w *wrapperConn) QueryContext(ctx context.Context, query string, args []dri
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "QueryContext", labelQuery, name}
if conn, ok := w.conn.(driver.QueryerContext); ok {
ts := time.Now()
rows, err := conn.QueryContext(nctx, query, args)
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
}
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
conn, ok := w.conn.(driver.QueryerContext)
if !ok {
return nil, driver.ErrSkip
}
ts := time.Now()
// nolint:staticcheck
rows, err := w.Query(query, values)
rows, err := conn.QueryContext(nctx, query, args)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -473,8 +416,35 @@ func (w *wrapperConn) QueryContext(ctx context.Context, query string, args []dri
}
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "QueryContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return rows, err
}
// CheckNamedValue implements driver.NamedValueChecker
func (w *wrapperConn) CheckNamedValue(v *driver.NamedValue) error {
s, ok := w.conn.(driver.NamedValueChecker)
if !ok {
return driver.ErrSkip
}
return s.CheckNamedValue(v)
}
// IsValid implements driver.Validator
func (w *wrapperConn) IsValid() bool {
v, ok := w.conn.(driver.Validator)
if !ok {
return w.conn != nil
}
return v.IsValid()
}
func (w *wrapperConn) ResetSession(ctx context.Context) error {
s, ok := w.conn.(driver.SessionResetter)
if !ok {
return driver.ErrSkip
}
return s.ResetSession(ctx)
}

2
doc.go
View File

@ -1,2 +1,2 @@
// package wrapper provides SQL driver wrapper with micro tracing, logging, metering capabilities
package wrapper // import "go.unistack.org/micro-wrapper-sql/v3"
package wrapper

58
driver.go
View File

@ -6,11 +6,34 @@ import (
"time"
)
var (
// _ driver.DriverContext = (*wrapperDriver)(nil)
// _ driver.Connector = (*wrapperDriver)(nil)
)
type conn interface {
driver.Pinger
driver.Execer
driver.ExecerContext
driver.Queryer
driver.QueryerContext
driver.Conn
driver.ConnPrepareContext
driver.ConnBeginTx
}
// wrapperDriver defines a wrapper for driver.Driver
type wrapperDriver struct {
driver driver.Driver
connector driver.Connector
opts Options
ctx context.Context
}
type wrapperConnector struct {
driver driver.Driver
name string
opts Options
ctx context.Context
}
// NewWrapper creates and returns a new SQL driver with passed capabilities
@ -18,8 +41,38 @@ func NewWrapper(d driver.Driver, opts ...Option) driver.Driver {
return &wrapperDriver{driver: d, opts: NewOptions(opts...), ctx: context.Background()}
}
/*
// Connect implements driver.Driver Connect
func (w *wrapperConnector) Connect(ctx context.Context) (driver.Conn, error) {
return w.driver.Connect(ctx)
}
// Driver implements driver.Driver Driver
func (w *wrapperConnector) Driver() driver.Driver {
return w.driver
}
*/
/*
// Connect implements driver.Driver OpenConnector
func (w *wrapperDriver) OpenConnector(name string) (driver.Conn, error) {
return &wrapperConnector{driver: w.driver, name: name, opts: w.opts}, nil
}
*/
// Open implements driver.Driver Open
func (w *wrapperDriver) Open(name string) (driver.Conn, error) {
// ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second) // Ensure eventual timeout
// defer cancel()
/*
connector, err := w.OpenConnector(name)
if err != nil {
return nil, err
}
return connector.Connect(ctx)
*/
ts := time.Now()
c, err := w.driver.Open(name)
td := time.Since(ts)
@ -27,10 +80,9 @@ func (w *wrapperDriver) Open(name string) (driver.Conn, error) {
if w.opts.LoggerEnabled {
w.opts.Logger.Fields(w.opts.LoggerObserver(w.ctx, "Open", labelUnknown, td, err)...).Log(w.ctx, w.opts.LoggerLevel)
}
if err != nil {
return nil, err
}
return &wrapperConn{d: w, dname: name, conn: c, opts: w.opts, ctx: w.ctx}, nil
return wrapConn(c, w.opts), nil
}

167
gen.go Normal file
View File

@ -0,0 +1,167 @@
//go:build ignore
package main
import (
"bytes"
"crypto/md5"
"fmt"
"io"
"sort"
"strings"
)
var connIfaces = []string{
"driver.ConnBeginTx",
"driver.ConnPrepareContext",
"driver.Execer",
"driver.ExecerContext",
"driver.NamedValueChecker",
"driver.Pinger",
"driver.Queryer",
"driver.QueryerContext",
"driver.SessionResetter",
"driver.Validator",
}
var stmtIfaces = []string{
"driver.StmtExecContext",
"driver.StmtQueryContext",
"driver.ColumnConverter",
"driver.NamedValueChecker",
}
func getHash(s []string) string {
h := md5.New()
io.WriteString(h, strings.Join(s, "|"))
return fmt.Sprintf("%x", h.Sum(nil))
}
func main() {
comboConn := all(connIfaces)
sort.Slice(comboConn, func(i, j int) bool {
return len(comboConn[i]) < len(comboConn[j])
})
comboStmt := all(stmtIfaces)
sort.Slice(comboStmt, func(i, j int) bool {
return len(comboStmt[i]) < len(comboStmt[j])
})
b := bytes.NewBuffer(nil)
b.WriteString("// Code generated. DO NOT EDIT.\n\n")
b.WriteString("package wrapper\n\n")
b.WriteString(`import "database/sql/driver"`)
b.WriteString("\n\n")
b.WriteString("func wrapConn(dc driver.Conn, opts Options) driver.Conn {\n")
b.WriteString("\tc := &wrapperConn{conn: dc, opts: opts}\n")
for idx := len(comboConn) - 1; idx >= 0; idx-- {
ifaces := comboConn[idx]
n := len(ifaces)
if n == 0 {
continue
}
h := getHash(ifaces)
b.WriteString(fmt.Sprintf("\tif v, ok := dc.(wrapConn%04d_%s); ok {\n", n, h))
b.WriteString("\treturn struct {\n")
b.WriteString("\t\tdriver.Conn\n")
b.WriteString(fmt.Sprintf("\t\t\t%s", strings.Join(ifaces, "\n\t\t\t")))
b.WriteString("\t\t\n}{")
for idx := range ifaces {
if idx > 0 {
b.WriteString(", ")
b.WriteString("v")
} else if idx == 0 {
b.WriteString("c")
} else {
b.WriteString("v")
}
}
b.WriteString(", v}\n")
b.WriteString("}\n\n")
}
b.WriteString("return c\n")
b.WriteString("}\n")
for idx := len(comboConn) - 1; idx >= 0; idx-- {
ifaces := comboConn[idx]
n := len(ifaces)
if n == 0 {
continue
}
h := getHash(ifaces)
b.WriteString(fmt.Sprintf("// %s\n", strings.Join(ifaces, "|")))
b.WriteString(fmt.Sprintf("type wrapConn%04d_%s interface {\n", n, h))
for _, iface := range ifaces {
b.WriteString(fmt.Sprintf("\t%s\n", iface))
}
b.WriteString("}\n\n")
}
b.WriteString("func wrapStmt(stmt driver.Stmt, query string, opts Options) driver.Stmt {\n")
b.WriteString("\tc := &wrapperStmt{stmt: stmt, query: query, opts: opts}\n")
for idx := len(comboStmt) - 1; idx >= 0; idx-- {
ifaces := comboStmt[idx]
n := len(ifaces)
if n == 0 {
continue
}
h := getHash(ifaces)
b.WriteString(fmt.Sprintf("\tif v, ok := stmt.(wrapStmt%04d_%s); ok {\n", n, h))
b.WriteString("\treturn struct {\n")
b.WriteString("\t\tdriver.Stmt\n")
b.WriteString(fmt.Sprintf("\t\t\t%s", strings.Join(ifaces, "\n\t\t\t")))
b.WriteString("\t\t\n}{")
for idx := range ifaces {
if idx > 0 {
b.WriteString(", ")
b.WriteString("v")
} else if idx == 0 {
b.WriteString("c")
} else {
b.WriteString("v")
}
}
b.WriteString(", v}\n")
b.WriteString("}\n\n")
}
b.WriteString("return c\n")
b.WriteString("}\n")
for idx := len(comboStmt) - 1; idx >= 0; idx-- {
ifaces := comboStmt[idx]
n := len(ifaces)
if n == 0 {
continue
}
h := getHash(ifaces)
b.WriteString(fmt.Sprintf("// %s\n", strings.Join(ifaces, "|")))
b.WriteString(fmt.Sprintf("type wrapStmt%04d_%s interface {\n", n, h))
for _, iface := range ifaces {
b.WriteString(fmt.Sprintf("\t%s\n", iface))
}
b.WriteString("}\n\n")
}
fmt.Printf("%s\n", b.String())
}
// all returns all combinations for a given string array.
func all[T any](set []T) (subsets [][]T) {
length := uint(len(set))
for subsetBits := 1; subsetBits < (1 << length); subsetBits++ {
var subset []T
for object := uint(0); object < length; object++ {
if (subsetBits>>object)&1 == 1 {
subset = append(subset, set[object])
}
}
subsets = append(subsets, subset)
}
return subsets
}

6
go.mod
View File

@ -1,5 +1,5 @@
module go.unistack.org/micro-wrapper-sql/v3
module go.unistack.org/micro-wrapper-sql/v4
go 1.16
go 1.19
require go.unistack.org/micro/v3 v3.10.14
require go.unistack.org/micro/v4 v4.0.3

10
go.sum
View File

@ -1,8 +1,2 @@
github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
go.unistack.org/micro/v3 v3.10.14 h1:7fgLpwGlCN67twhwtngJDEQvrMkUBDSA5vzZqxIDqNE=
go.unistack.org/micro/v3 v3.10.14/go.mod h1:uMAc0U/x7dmtICCrblGf0ZLgYegu3VwQAquu+OFCw1Q=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
go.unistack.org/micro/v4 v4.0.3 h1:AFr21ua3IrkuxH26kNYVrs7Kpsrm+4aylE/PfjLdCWM=
go.unistack.org/micro/v4 v4.0.3/go.mod h1:+wBa98rSf+mRXb/MuSVFPXtDrqN0k8rzPQiC8wRCwCo=

6
options.go
View File

@ -5,9 +5,9 @@ import (
"fmt"
"time"
"go.unistack.org/micro/v3/logger"
"go.unistack.org/micro/v3/meter"
"go.unistack.org/micro/v3/tracer"
"go.unistack.org/micro/v4/logger"
"go.unistack.org/micro/v4/meter"
"go.unistack.org/micro/v4/tracer"
)
var (

2
stats.go
View File

@ -1,4 +1,4 @@
package wrapper // import "go.unistack.org/micro-wrapper-sql/v3"
package wrapper // import "go.unistack.org/micro-wrapper-sql-1/v3"
import (
"context"

76
stmt.go
View File

@ -6,16 +6,22 @@ import (
"fmt"
"time"
"go.unistack.org/micro/v3/tracer"
"go.unistack.org/micro/v4/tracer"
)
var _ driver.Stmt = &wrapperStmt{}
var (
_ driver.Stmt = (*wrapperStmt)(nil)
_ driver.StmtQueryContext = (*wrapperStmt)(nil)
_ driver.StmtExecContext = (*wrapperStmt)(nil)
_ driver.NamedValueChecker = (*wrapperStmt)(nil)
)
// wrapperStmt defines a wrapper for driver.Stmt
type wrapperStmt struct {
stmt driver.Stmt
opts Options
ctx context.Context
stmt driver.Stmt
opts Options
query string
ctx context.Context
}
// Close implements driver.Stmt Close
@ -39,7 +45,7 @@ func (w *wrapperStmt) Close() error {
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Close", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return err
@ -50,6 +56,15 @@ func (w *wrapperStmt) NumInput() int {
return w.stmt.NumInput()
}
// CheckNamedValue implements driver.NamedValueChecker
func (w *wrapperStmt) CheckNamedValue(v *driver.NamedValue) error {
s, ok := w.stmt.(driver.NamedValueChecker)
if !ok {
return driver.ErrSkip
}
return s.CheckNamedValue(v)
}
// Exec implements driver.Stmt Exec
func (w *wrapperStmt) Exec(args []driver.Value) (driver.Result, error) {
var ctx context.Context
@ -72,9 +87,10 @@ func (w *wrapperStmt) Exec(args []driver.Value) (driver.Result, error) {
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Exec", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, err
}
@ -100,14 +116,15 @@ func (w *wrapperStmt) Query(args []driver.Value) (driver.Rows, error) {
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "Query", labelUnknown, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return rows, err
}
// ExecContext implements driver.ExecerContext ExecContext
func (w *wrapperStmt) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
// ExecContext implements driver.StmtExecContext ExecContext
func (w *wrapperStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
var nctx context.Context
var span tracer.Span
if w.ctx != nil {
@ -127,9 +144,10 @@ func (w *wrapperStmt) ExecContext(ctx context.Context, query string, args []driv
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "ExecContext", labelQuery, name}
if conn, ok := w.stmt.(driver.ExecerContext); ok {
if conn, ok := w.stmt.(driver.StmtExecContext); ok {
ts := time.Now()
res, err := conn.ExecContext(nctx, query, args)
res, err := conn.ExecContext(nctx, args)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -142,25 +160,25 @@ func (w *wrapperStmt) ExecContext(ctx context.Context, query string, args []driv
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, err
}
values, err := namedValueToValue(args)
if err != nil {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, 0, err)...).Log(ctx, w.opts.LoggerLevel)
}
return nil, err
}
ts := time.Now()
// nolint:staticcheck
res, err := w.Exec(values)
res, err := w.Exec(values) // nolint:staticcheck
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -174,14 +192,15 @@ func (w *wrapperStmt) ExecContext(ctx context.Context, query string, args []driv
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, "ExecContext", name, td, err)).Log(ctx, w.opts.LoggerLevel)
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "ExecContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return res, err
}
// QueryContext implements Driver.QueryerContext QueryContext
func (w *wrapperStmt) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
// QueryContext implements driver.StmtQueryContext StmtQueryContext
func (w *wrapperStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
var nctx context.Context
var span tracer.Span
if w.ctx != nil {
@ -201,9 +220,9 @@ func (w *wrapperStmt) QueryContext(ctx context.Context, query string, args []dri
span.AddLabels("args", fmt.Sprintf("%v", namedValueToLabels(args)))
}
labels := []string{labelMethod, "QueryContext", labelQuery, name}
if conn, ok := w.stmt.(driver.QueryerContext); ok {
if conn, ok := w.stmt.(driver.StmtQueryContext); ok {
ts := time.Now()
rows, err := conn.QueryContext(nctx, query, args)
rows, err := conn.QueryContext(nctx, args)
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -217,11 +236,12 @@ func (w *wrapperStmt) QueryContext(ctx context.Context, query string, args []dri
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)
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
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 {
w.opts.Meter.Counter(meterRequestTotal, append(labels, labelStatus, labelFailure)...).Inc()
@ -229,14 +249,13 @@ func (w *wrapperStmt) QueryContext(ctx context.Context, query string, args []dri
span.AddLabels("error", true)
span.AddLabels("err", err.Error())
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
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(values)
rows, err := w.Query(values) // nolint:staticcheck
td := time.Since(ts)
te := td.Seconds()
if err != nil {
@ -250,8 +269,9 @@ func (w *wrapperStmt) QueryContext(ctx context.Context, query string, args []dri
w.opts.Meter.Summary(meterRequestLatencyMicroseconds, labels...).Update(te)
w.opts.Meter.Histogram(meterRequestDurationSeconds, labels...).Update(te)
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(ctx, "QueryContext", name, td, err)...).Log(ctx, w.opts.LoggerLevel)
}
return rows, err
}

35
tx.go
View File

@ -5,64 +5,61 @@ import (
"database/sql/driver"
"time"
"go.unistack.org/micro/v3/tracer"
"go.unistack.org/micro/v4/tracer"
)
var _ driver.Tx = &wrapperTx{}
var _ driver.Tx = (*wrapperTx)(nil)
// wrapperTx defines a wrapper for driver.Tx
type wrapperTx struct {
tx driver.Tx
span tracer.Span
opts Options
conn *wrapperConn
ctx context.Context
}
// Commit implements driver.Tx Commit
func (w *wrapperTx) Commit() error {
if w.span != nil {
defer w.span.Finish()
}
ts := time.Now()
err := w.tx.Commit()
td := time.Since(ts)
if err != nil {
w.span.AddLabels("error", true)
w.span.AddLabels("err", err.Error())
if w.span != nil {
if err != nil {
w.span.AddLabels("error", true)
w.span.AddLabels("err", err.Error())
}
w.span.Finish()
}
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(w.ctx, "Commit", labelUnknown, td, err)...).Log(w.ctx, w.opts.LoggerLevel)
}
w.ctx = nil
w.conn.ctx = nil
return err
}
// Rollback implements driver.Tx Rollback
func (w *wrapperTx) Rollback() error {
if w.span != nil {
defer w.span.Finish()
}
ts := time.Now()
err := w.tx.Rollback()
td := time.Since(ts)
if err != nil {
w.span.AddLabels("error", true)
w.span.AddLabels("err", err.Error())
if w.span != nil {
if err != nil {
w.span.AddLabels("error", true)
w.span.AddLabels("err", err.Error())
}
w.span.Finish()
}
if w.opts.LoggerEnabled {
if w.opts.LoggerEnabled && w.opts.Logger.V(w.opts.LoggerLevel) {
w.opts.Logger.Fields(w.opts.LoggerObserver(w.ctx, "Rollback", labelUnknown, td, err)...).Log(w.ctx, w.opts.LoggerLevel)
}
w.ctx = nil
w.conn.ctx = nil
return err
}

129
wrap.go Normal file
View File

@ -0,0 +1,129 @@
package wrapper
import (
"database/sql/driver"
)
func wrapDriver(d driver.Driver, opts Options) driver.Driver {
if _, ok := d.(driver.DriverContext); ok {
return &wrapperDriver{driver: d, opts: opts}
}
return struct{ driver.Driver }{&wrapperDriver{driver: d, opts: opts}}
}
/*
func wrapStmt(stmt driver.Stmt, query string, opts Options) driver.Stmt {
var (
_, hasExeCtx = stmt.(driver.StmtExecContext)
_, hasQryCtx = stmt.(driver.StmtQueryContext)
wc, hasColConv = stmt.(driver.ColumnConverter) //nolint:staticcheck
wn, hasNamValChk = stmt.(driver.NamedValueChecker)
)
ws := &wrapperStmt{stmt: stmt, query: query, opts: opts}
switch {
case !hasExeCtx && !hasQryCtx && !hasColConv && !hasNamValChk:
return struct {
driver.Stmt
}{ws}
case !hasExeCtx && hasQryCtx && !hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtQueryContext
}{ws, ws}
case hasExeCtx && !hasQryCtx && !hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
}{ws, ws}
case hasExeCtx && hasQryCtx && !hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.StmtQueryContext
}{ws, ws, ws}
case !hasExeCtx && !hasQryCtx && hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.ColumnConverter
}{ws, wc}
case !hasExeCtx && hasQryCtx && hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtQueryContext
driver.ColumnConverter
}{ws, ws, wc}
case hasExeCtx && !hasQryCtx && hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.ColumnConverter
}{ws, ws, wc}
case hasExeCtx && hasQryCtx && hasColConv && !hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.StmtQueryContext
driver.ColumnConverter
}{ws, ws, ws, wc}
case !hasExeCtx && !hasQryCtx && !hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.NamedValueChecker
}{ws, wn}
case !hasExeCtx && hasQryCtx && !hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtQueryContext
driver.NamedValueChecker
}{ws, ws, wn}
case hasExeCtx && !hasQryCtx && !hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.NamedValueChecker
}{ws, ws, wn}
case hasExeCtx && hasQryCtx && !hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.StmtQueryContext
driver.NamedValueChecker
}{ws, ws, ws, wn}
case !hasExeCtx && !hasQryCtx && hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.ColumnConverter
driver.NamedValueChecker
}{ws, wc, wn}
case !hasExeCtx && hasQryCtx && hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtQueryContext
driver.ColumnConverter
driver.NamedValueChecker
}{ws, ws, wc, wn}
case hasExeCtx && !hasQryCtx && hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.ColumnConverter
driver.NamedValueChecker
}{ws, ws, wc, wn}
case hasExeCtx && hasQryCtx && hasColConv && hasNamValChk:
return struct {
driver.Stmt
driver.StmtExecContext
driver.StmtQueryContext
driver.ColumnConverter
driver.NamedValueChecker
}{ws, ws, ws, wc, wn}
}
panic("unreachable")
}
*/
// WrapConn allows an existing driver.Conn to be wrapped.
func WrapConn(c driver.Conn, opts ...Option) driver.Conn {
return wrapConn(c, NewOptions(opts...))
}

20699
wrap_gen.go Normal file
View File

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