/
adaptor_query.go
72 lines (60 loc) · 1.6 KB
/
adaptor_query.go
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package driver
import (
"context"
"os"
"github.com/actiontech/sqle/sqle/driver"
hclog "github.com/hashicorp/go-hclog"
goPlugin "github.com/hashicorp/go-plugin"
)
type SQLQueryPrepareFunc func(ctx context.Context, sql string, conf *driver.QueryPrepareConf, dbConf DbConf) (*driver.QueryPrepareResult, error)
type SQLQueryFunc func(ctx context.Context, sql string, conf *driver.QueryConf, dbConf DbConf) (*driver.QueryResult, error)
type QueryAdaptor struct {
l hclog.Logger
dt Dialector
dsn *driver.DSN
queryPrepare SQLQueryPrepareFunc
query SQLQueryFunc
}
func NewQueryAdaptor(dt Dialector) *QueryAdaptor {
return &QueryAdaptor{
dt: dt,
l: hclog.New(&hclog.LoggerOptions{
JSONFormat: true,
Output: os.Stderr,
Level: hclog.Trace,
}),
}
}
func (q *QueryAdaptor) AddSQLQueryPrepareFunc(f SQLQueryPrepareFunc) {
q.queryPrepare = f
}
func (q *QueryAdaptor) AddSQLQueryFunc(f SQLQueryFunc) {
q.query = f
}
func (q *QueryAdaptor) GeneratePlugin() goPlugin.Plugin {
defer func() {
if err := recover(); err != nil {
q.l.Error("panic", "err", err)
}
}()
newDriver := func(dsn *driver.DSN) driver.SQLQueryDriver {
if p, exist := pluginImpls[driver.PluginNameQueryDriver]; exist {
return p
}
q.dsn = dsn
di := &pluginImpl{
queryAdaptor: q,
}
if q.dsn == nil {
pluginImpls[driver.PluginNameQueryDriver] = di
return di
}
driverName, dsnDetail := q.dt.Dialect(dsn)
db, conn := getDbConn(driverName, dsnDetail)
di.db = db
di.conn = conn
pluginImpls[driver.PluginNameQueryDriver] = di
return di
}
return driver.NewQueryDriverPlugin(newDriver)
}