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sql.go
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sql.go
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package ydb
import (
"context"
"database/sql"
"database/sql/driver"
"fmt"
"github.com/ydb-platform/ydb-go-sdk/v3/internal/bind"
"github.com/ydb-platform/ydb-go-sdk/v3/internal/xerrors"
"github.com/ydb-platform/ydb-go-sdk/v3/internal/xsql"
"github.com/ydb-platform/ydb-go-sdk/v3/internal/xsync"
"github.com/ydb-platform/ydb-go-sdk/v3/table"
"github.com/ydb-platform/ydb-go-sdk/v3/table/options"
"github.com/ydb-platform/ydb-go-sdk/v3/trace"
)
var d = &sqlDriver{connectors: make(map[*xsql.Connector]*Driver)} //nolint:gochecknoglobals
func init() { //nolint:gochecknoinits
sql.Register("ydb", d)
sql.Register("ydb/v3", d)
}
func withConnectorOptions(opts ...ConnectorOption) Option {
return func(ctx context.Context, d *Driver) error {
d.databaseSQLOptions = append(d.databaseSQLOptions, opts...)
return nil
}
}
type sqlDriver struct {
connectors map[*xsql.Connector]*Driver
connectorsMtx xsync.RWMutex
}
var (
_ driver.Driver = &sqlDriver{}
_ driver.DriverContext = &sqlDriver{}
)
func (d *sqlDriver) Close() error {
var connectors map[*xsql.Connector]*Driver
d.connectorsMtx.WithRLock(func() {
connectors = d.connectors
})
var errs []error
for c := range connectors {
if err := c.Close(); err != nil {
errs = append(errs, err)
}
}
if len(errs) > 0 {
return xerrors.NewWithIssues("ydb legacy driver close failed", errs...)
}
return nil
}
// Open returns a new Driver to the ydb.
func (d *sqlDriver) Open(string) (driver.Conn, error) {
return nil, xsql.ErrUnsupported
}
func (d *sqlDriver) OpenConnector(dataSourceName string) (driver.Connector, error) {
db, err := Open(context.Background(), dataSourceName)
if err != nil {
return nil, xerrors.WithStackTrace(fmt.Errorf("failed to connect by data source name '%s': %w", dataSourceName, err))
}
return Connector(db, db.databaseSQLOptions...)
}
func (d *sqlDriver) attach(c *xsql.Connector, parent *Driver) {
d.connectorsMtx.WithLock(func() {
d.connectors[c] = parent
})
}
func (d *sqlDriver) detach(c *xsql.Connector) {
d.connectorsMtx.WithLock(func() {
delete(d.connectors, c)
})
}
type QueryMode = xsql.QueryMode
const (
DataQueryMode = xsql.DataQueryMode
ExplainQueryMode = xsql.ExplainQueryMode
ScanQueryMode = xsql.ScanQueryMode
SchemeQueryMode = xsql.SchemeQueryMode
ScriptingQueryMode = xsql.ScriptingQueryMode
)
func WithQueryMode(ctx context.Context, mode QueryMode) context.Context {
return xsql.WithQueryMode(ctx, mode)
}
func WithTxControl(ctx context.Context, txc *table.TransactionControl) context.Context {
return xsql.WithTxControl(ctx, txc)
}
type ConnectorOption = xsql.ConnectorOption
type QueryBindConnectorOption interface {
ConnectorOption
bind.Bind
}
func WithDefaultQueryMode(mode QueryMode) ConnectorOption {
return xsql.WithDefaultQueryMode(mode)
}
func WithFakeTx(mode QueryMode) ConnectorOption {
return xsql.WithFakeTx(mode)
}
func WithTablePathPrefix(tablePathPrefix string) QueryBindConnectorOption {
return xsql.WithTablePathPrefix(tablePathPrefix)
}
func WithAutoDeclare() QueryBindConnectorOption {
return xsql.WithQueryBind(bind.AutoDeclare{})
}
func WithPositionalArgs() QueryBindConnectorOption {
return xsql.WithQueryBind(bind.PositionalArgs{})
}
func WithNumericArgs() QueryBindConnectorOption {
return xsql.WithQueryBind(bind.NumericArgs{})
}
func WithDefaultTxControl(txControl *table.TransactionControl) ConnectorOption {
return xsql.WithDefaultTxControl(txControl)
}
func WithDefaultDataQueryOptions(opts ...options.ExecuteDataQueryOption) ConnectorOption {
return xsql.WithDefaultDataQueryOptions(opts...)
}
func WithDefaultScanQueryOptions(opts ...options.ExecuteScanQueryOption) ConnectorOption {
return xsql.WithDefaultScanQueryOptions(opts...)
}
func WithDatabaseSQLTrace(
t trace.DatabaseSQL, //nolint:gocritic
opts ...trace.DatabaseSQLComposeOption,
) ConnectorOption {
return xsql.WithTrace(&t, opts...)
}
func WithDisableServerBalancer() ConnectorOption {
return xsql.WithDisableServerBalancer()
}
type SQLConnector interface {
driver.Connector
Close() error
}
func Connector(parent *Driver, opts ...ConnectorOption) (SQLConnector, error) {
c, err := xsql.Open(parent,
append(
append(
parent.databaseSQLOptions,
opts...,
),
xsql.WithOnClose(d.detach),
xsql.WithTraceRetry(parent.config.TraceRetry()),
xsql.WithretryBudget(parent.config.RetryBudget()),
)...,
)
if err != nil {
return nil, xerrors.WithStackTrace(err)
}
d.attach(c, parent)
return c, nil
}
func MustConnector(parent *Driver, opts ...ConnectorOption) SQLConnector {
c, err := Connector(parent, opts...)
if err != nil {
panic(err)
}
return c
}