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122 lines
2.7 KiB
122 lines
2.7 KiB
package mssql
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import (
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"database/sql/driver"
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"fmt"
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)
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// Error represents an SQL Server error. This
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// type includes methods for reading the contents
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// of the struct, which allows calling programs
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// to check for specific error conditions without
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// having to import this package directly.
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type Error struct {
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Number int32
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State uint8
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Class uint8
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Message string
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ServerName string
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ProcName string
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LineNo int32
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// All lists all errors that were received from first to last.
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// This includes the last one, which is described in the other members.
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All []Error
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}
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func (e Error) Error() string {
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return "mssql: " + e.Message
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}
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func (e Error) String() string {
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return e.Message
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}
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// SQLErrorNumber returns the SQL Server error number.
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func (e Error) SQLErrorNumber() int32 {
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return e.Number
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}
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func (e Error) SQLErrorState() uint8 {
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return e.State
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}
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func (e Error) SQLErrorClass() uint8 {
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return e.Class
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}
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func (e Error) SQLErrorMessage() string {
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return e.Message
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}
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func (e Error) SQLErrorServerName() string {
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return e.ServerName
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}
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func (e Error) SQLErrorProcName() string {
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return e.ProcName
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}
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func (e Error) SQLErrorLineNo() int32 {
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return e.LineNo
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}
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type StreamError struct {
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InnerError error
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}
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func (e StreamError) Error() string {
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return "Invalid TDS stream: " + e.InnerError.Error()
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}
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func badStreamPanic(err error) {
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panic(StreamError{InnerError: err})
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}
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func badStreamPanicf(format string, v ...interface{}) {
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panic(fmt.Errorf(format, v...))
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}
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// ServerError is returned when the server got a fatal error
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// that aborts the process and severs the connection.
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//
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// To get the errors returned before the process was aborted,
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// unwrap this error or call errors.As with a pointer to an
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// mssql.Error variable.
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type ServerError struct {
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sqlError Error
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}
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func (e ServerError) Error() string {
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return "SQL Server had internal error"
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}
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func (e ServerError) Unwrap() error {
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return e.sqlError
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}
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// RetryableError is returned when an error was caused by a bad
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// connection at the start of a query and can be safely retried
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// using database/sql's automatic retry logic.
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//
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// In many cases database/sql's retry logic will transparently
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// handle this error, the retried call will return successfully,
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// and you won't even see this error. However, you may see this
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// error if the retry logic cannot successfully handle the error.
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// In that case you can get the underlying error by calling this
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// error's UnWrap function.
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type RetryableError struct {
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err error
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}
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func (r RetryableError) Error() string {
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return r.err.Error()
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}
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func (r RetryableError) Unwrap() error {
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return r.err
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}
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func (r RetryableError) Is(err error) bool {
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return err == driver.ErrBadConn
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}
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