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datatypes.go
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datatypes.go
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// Go driver for MySQL X Protocol
//
// Copyright 2016 Simon J Mudd.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
//
// MySQL X protocol authentication using MYSQL41 method
package mysql
// This file holds information about the XPROTOCOL datatypes
import (
"fmt"
"log"
"strings"
"github.com/sjmudd/go-mysqlx-driver/Mysqlx_Datatypes"
)
func printableScalar(s *Mysqlx_Datatypes.Scalar) string {
t := s.GetType()
switch t {
case Mysqlx_Datatypes.Scalar_V_STRING:
{
v := s.GetVString()
return fmt.Sprintf("%s: value: %q (collation: %d)", t.String(), string(v.Value), v.GetCollation())
}
case Mysqlx_Datatypes.Scalar_V_BOOL:
{
b := s.GetVBool()
return fmt.Sprintf("%s: value: %v", t.String(), b)
}
}
return fmt.Sprintf("UNKNOWN SCALAR: %s", t.String())
}
// recursive ...
func printableArray(s *Mysqlx_Datatypes.Array) string {
results := []string{}
for i := range s.GetValue() {
results = append(results, printableDatatype(s.GetValue()[i]))
}
return strings.Join(results, ", ")
}
func printableObj(d *Mysqlx_Datatypes.Object) string {
results := []string{}
for i := range d.GetFld() {
results = append(results, d.GetFld()[i].String()) // should later split to k/v pairs
}
return strings.Join(results, ", ")
}
func printableDatatype(d *Mysqlx_Datatypes.Any) string {
// figure out the type and show it.
t := d.GetType()
s := fmt.Sprintf("Type: %+v", t)
switch t {
case Mysqlx_Datatypes.Any_SCALAR:
{
s = fmt.Sprintf("Scalar: %s", printableScalar(d.GetScalar()))
}
case Mysqlx_Datatypes.Any_OBJECT:
{
s = fmt.Sprintf("Object: %s", printableObj(d.GetObj()))
}
case Mysqlx_Datatypes.Any_ARRAY:
{
s = fmt.Sprintf("Array: %s", printableArray(d.GetArray()))
}
default:
log.Fatalf("Unexpected datatype %+v", t)
}
return s
}