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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package thrift
import (
"errors"
"io"
)
type timeoutable interface {
Timeout() bool
}
// Thrift Transport exception
type TTransportException interface {
TException
TypeId() int
Err() error
}
const (
UNKNOWN_TRANSPORT_EXCEPTION = 0
NOT_OPEN = 1
ALREADY_OPEN = 2
TIMED_OUT = 3
END_OF_FILE = 4
)
type tTransportException struct {
typeId int
err error
msg string
}
var _ TTransportException = (*tTransportException)(nil)
func (tTransportException) TExceptionType() TExceptionType {
return TExceptionTypeTransport
}
func (p *tTransportException) TypeId() int {
return p.typeId
}
func (p *tTransportException) Error() string {
return p.msg
}
func (p *tTransportException) Err() error {
return p.err
}
func (p *tTransportException) Unwrap() error {
return p.err
}
func (p *tTransportException) Timeout() bool {
return p.typeId == TIMED_OUT
}
func NewTTransportException(t int, e string) TTransportException {
return &tTransportException{
typeId: t,
err: errors.New(e),
msg: e,
}
}
func NewTTransportExceptionFromError(e error) TTransportException {
if e == nil {
return nil
}
if t, ok := e.(TTransportException); ok {
return t
}
te := &tTransportException{
typeId: UNKNOWN_TRANSPORT_EXCEPTION,
err: e,
msg: e.Error(),
}
if isTimeoutError(e) {
te.typeId = TIMED_OUT
return te
}
if errors.Is(e, io.EOF) {
te.typeId = END_OF_FILE
return te
}
return te
}
func prependTTransportException(prepend string, e TTransportException) TTransportException {
return &tTransportException{
typeId: e.TypeId(),
err: e,
msg: prepend + e.Error(),
}
}
// isTimeoutError returns true when err is an error caused by timeout.
//
// Note that this also includes TTransportException wrapped timeout errors.
func isTimeoutError(err error) bool {
var t timeoutable
if errors.As(err, &t) {
return t.Timeout()
}
return false
}
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