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|
package pgproto3
import (
"bytes"
"encoding/binary"
"encoding/json"
"strconv"
)
type ErrorResponse struct {
Severity string
SeverityUnlocalized string // only in 9.6 and greater
Code string
Message string
Detail string
Hint string
Position int32
InternalPosition int32
InternalQuery string
Where string
SchemaName string
TableName string
ColumnName string
DataTypeName string
ConstraintName string
File string
Line int32
Routine string
UnknownFields map[byte]string
}
// Backend identifies this message as sendable by the PostgreSQL backend.
func (*ErrorResponse) Backend() {}
// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message
// type identifier and 4 byte message length.
func (dst *ErrorResponse) Decode(src []byte) error {
*dst = ErrorResponse{}
buf := bytes.NewBuffer(src)
for {
k, err := buf.ReadByte()
if err != nil {
return err
}
if k == 0 {
break
}
vb, err := buf.ReadBytes(0)
if err != nil {
return err
}
v := string(vb[:len(vb)-1])
switch k {
case 'S':
dst.Severity = v
case 'V':
dst.SeverityUnlocalized = v
case 'C':
dst.Code = v
case 'M':
dst.Message = v
case 'D':
dst.Detail = v
case 'H':
dst.Hint = v
case 'P':
s := v
n, _ := strconv.ParseInt(s, 10, 32)
dst.Position = int32(n)
case 'p':
s := v
n, _ := strconv.ParseInt(s, 10, 32)
dst.InternalPosition = int32(n)
case 'q':
dst.InternalQuery = v
case 'W':
dst.Where = v
case 's':
dst.SchemaName = v
case 't':
dst.TableName = v
case 'c':
dst.ColumnName = v
case 'd':
dst.DataTypeName = v
case 'n':
dst.ConstraintName = v
case 'F':
dst.File = v
case 'L':
s := v
n, _ := strconv.ParseInt(s, 10, 32)
dst.Line = int32(n)
case 'R':
dst.Routine = v
default:
if dst.UnknownFields == nil {
dst.UnknownFields = make(map[byte]string)
}
dst.UnknownFields[k] = v
}
}
return nil
}
// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length.
func (src *ErrorResponse) Encode(dst []byte) []byte {
return append(dst, src.marshalBinary('E')...)
}
func (src *ErrorResponse) marshalBinary(typeByte byte) []byte {
var bigEndian BigEndianBuf
buf := &bytes.Buffer{}
buf.WriteByte(typeByte)
buf.Write(bigEndian.Uint32(0))
if src.Severity != "" {
buf.WriteByte('S')
buf.WriteString(src.Severity)
buf.WriteByte(0)
}
if src.SeverityUnlocalized != "" {
buf.WriteByte('V')
buf.WriteString(src.SeverityUnlocalized)
buf.WriteByte(0)
}
if src.Code != "" {
buf.WriteByte('C')
buf.WriteString(src.Code)
buf.WriteByte(0)
}
if src.Message != "" {
buf.WriteByte('M')
buf.WriteString(src.Message)
buf.WriteByte(0)
}
if src.Detail != "" {
buf.WriteByte('D')
buf.WriteString(src.Detail)
buf.WriteByte(0)
}
if src.Hint != "" {
buf.WriteByte('H')
buf.WriteString(src.Hint)
buf.WriteByte(0)
}
if src.Position != 0 {
buf.WriteByte('P')
buf.WriteString(strconv.Itoa(int(src.Position)))
buf.WriteByte(0)
}
if src.InternalPosition != 0 {
buf.WriteByte('p')
buf.WriteString(strconv.Itoa(int(src.InternalPosition)))
buf.WriteByte(0)
}
if src.InternalQuery != "" {
buf.WriteByte('q')
buf.WriteString(src.InternalQuery)
buf.WriteByte(0)
}
if src.Where != "" {
buf.WriteByte('W')
buf.WriteString(src.Where)
buf.WriteByte(0)
}
if src.SchemaName != "" {
buf.WriteByte('s')
buf.WriteString(src.SchemaName)
buf.WriteByte(0)
}
if src.TableName != "" {
buf.WriteByte('t')
buf.WriteString(src.TableName)
buf.WriteByte(0)
}
if src.ColumnName != "" {
buf.WriteByte('c')
buf.WriteString(src.ColumnName)
buf.WriteByte(0)
}
if src.DataTypeName != "" {
buf.WriteByte('d')
buf.WriteString(src.DataTypeName)
buf.WriteByte(0)
}
if src.ConstraintName != "" {
buf.WriteByte('n')
buf.WriteString(src.ConstraintName)
buf.WriteByte(0)
}
if src.File != "" {
buf.WriteByte('F')
buf.WriteString(src.File)
buf.WriteByte(0)
}
if src.Line != 0 {
buf.WriteByte('L')
buf.WriteString(strconv.Itoa(int(src.Line)))
buf.WriteByte(0)
}
if src.Routine != "" {
buf.WriteByte('R')
buf.WriteString(src.Routine)
buf.WriteByte(0)
}
for k, v := range src.UnknownFields {
buf.WriteByte(k)
buf.WriteString(v)
buf.WriteByte(0)
}
buf.WriteByte(0)
binary.BigEndian.PutUint32(buf.Bytes()[1:5], uint32(buf.Len()-1))
return buf.Bytes()
}
// MarshalJSON implements encoding/json.Marshaler.
func (src ErrorResponse) MarshalJSON() ([]byte, error) {
return json.Marshal(struct {
Type string
Severity string
SeverityUnlocalized string // only in 9.6 and greater
Code string
Message string
Detail string
Hint string
Position int32
InternalPosition int32
InternalQuery string
Where string
SchemaName string
TableName string
ColumnName string
DataTypeName string
ConstraintName string
File string
Line int32
Routine string
UnknownFields map[byte]string
}{
Type: "ErrorResponse",
Severity: src.Severity,
SeverityUnlocalized: src.SeverityUnlocalized,
Code: src.Code,
Message: src.Message,
Detail: src.Detail,
Hint: src.Hint,
Position: src.Position,
InternalPosition: src.InternalPosition,
InternalQuery: src.InternalQuery,
Where: src.Where,
SchemaName: src.SchemaName,
TableName: src.TableName,
ColumnName: src.ColumnName,
DataTypeName: src.DataTypeName,
ConstraintName: src.ConstraintName,
File: src.File,
Line: src.Line,
Routine: src.Routine,
UnknownFields: src.UnknownFields,
})
}
// UnmarshalJSON implements encoding/json.Unmarshaler.
func (dst *ErrorResponse) UnmarshalJSON(data []byte) error {
// Ignore null, like in the main JSON package.
if string(data) == "null" {
return nil
}
var msg struct {
Type string
Severity string
SeverityUnlocalized string // only in 9.6 and greater
Code string
Message string
Detail string
Hint string
Position int32
InternalPosition int32
InternalQuery string
Where string
SchemaName string
TableName string
ColumnName string
DataTypeName string
ConstraintName string
File string
Line int32
Routine string
UnknownFields map[byte]string
}
if err := json.Unmarshal(data, &msg); err != nil {
return err
}
dst.Severity = msg.Severity
dst.SeverityUnlocalized = msg.SeverityUnlocalized
dst.Code = msg.Code
dst.Message = msg.Message
dst.Detail = msg.Detail
dst.Hint = msg.Hint
dst.Position = msg.Position
dst.InternalPosition = msg.InternalPosition
dst.InternalQuery = msg.InternalQuery
dst.Where = msg.Where
dst.SchemaName = msg.SchemaName
dst.TableName = msg.TableName
dst.ColumnName = msg.ColumnName
dst.DataTypeName = msg.DataTypeName
dst.ConstraintName = msg.ConstraintName
dst.File = msg.File
dst.Line = msg.Line
dst.Routine = msg.Routine
dst.UnknownFields = msg.UnknownFields
return nil
}
|
