07088fe8a0
* Added HANA dynamic secret backend * Added acceptance tests for HANA secret backend * Add HANA backend as a logical backend to server * Added documentation to HANA secret backend * Added vendored libraries * Go fmt * Migrate hana credential creation to plugin * Removed deprecated hana logical backend * Migrated documentation for HANA database plugin * Updated HANA DB plugin to use role name in credential generation * Update HANA plugin tests * If env vars are not configured, tests will skip rather than succeed * Fixed some improperly named string variables * Removed unused import * Import SAP hdb driver
147 lines
3.3 KiB
Go
147 lines
3.3 KiB
Go
/*
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Copyright 2014 SAP SE
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package protocol
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import (
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"fmt"
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"github.com/SAP/go-hdb/internal/bufio"
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)
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const (
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sqlStateSize = 5
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)
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type sqlState [sqlStateSize]byte
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type hdbError struct {
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errorCode int32
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errorPosition int32
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errorTextLength int32
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errorLevel ErrorLevel
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sqlState sqlState
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errorText []byte
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}
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func newHdbError() *hdbError {
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return &hdbError{}
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}
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// String implements the Stringer interface.
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func (e *hdbError) String() string {
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return fmt.Sprintf("errorCode %d, errorPosition %d, errorTextLength % d errorLevel %s, sqlState %s errorText %s",
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e.errorCode,
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e.errorPosition,
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e.errorTextLength,
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e.errorLevel,
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e.sqlState,
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e.errorText,
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)
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}
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// Error implements the Error interface.
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func (e *hdbError) Error() string {
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return fmt.Sprintf("SQL %s %d - %s", e.errorLevel, e.errorCode, e.errorText)
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}
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// Code implements the hdb.Error interface.
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func (e *hdbError) Code() int {
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return int(e.errorCode)
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}
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// Position implements the hdb.Error interface.
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func (e *hdbError) Position() int {
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return int(e.errorPosition)
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}
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// Level implements the hdb.Error interface.
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func (e *hdbError) Level() ErrorLevel {
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return e.errorLevel
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}
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// Text implements the hdb.Error interface.
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func (e *hdbError) Text() string {
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return string(e.errorText)
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}
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// IsWarning implements the hdb.Error interface.
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func (e *hdbError) IsWarning() bool {
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return e.errorLevel == HdbWarning
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}
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// IsError implements the hdb.Error interface.
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func (e *hdbError) IsError() bool {
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return e.errorLevel == HdbError
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}
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// IsFatal implements the hdb.Error interface.
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func (e *hdbError) IsFatal() bool {
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return e.errorLevel == HdbFatalError
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}
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func (e *hdbError) kind() partKind {
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return pkError
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}
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func (e *hdbError) setNumArg(int) {
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// not needed
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}
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func (e *hdbError) read(rd *bufio.Reader) error {
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var err error
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if e.errorCode, err = rd.ReadInt32(); err != nil {
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return err
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}
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if e.errorPosition, err = rd.ReadInt32(); err != nil {
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return err
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}
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if e.errorTextLength, err = rd.ReadInt32(); err != nil {
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return err
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}
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el, err := rd.ReadInt8()
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if err != nil {
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return err
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}
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e.errorLevel = ErrorLevel(el)
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if err := rd.ReadFull(e.sqlState[:]); err != nil {
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return err
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}
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// read error text as ASCII data as some errors return invalid CESU-8 characters
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// e.g: SQL HdbError 7 - feature not supported: invalid character encoding: <invaid CESU-8 characters>
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// if e.errorText, err = rd.ReadCesu8(int(e.errorTextLength)); err != nil {
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// return err
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// }
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e.errorText = make([]byte, int(e.errorTextLength))
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if _, err = rd.Read(e.errorText); err != nil {
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return err
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}
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// part bufferlength is by one greater than real error length? --> read filler byte
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if _, err := rd.ReadByte(); err != nil {
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return err
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}
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if trace {
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outLogger.Printf("error: %s", e)
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}
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return nil
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}
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