70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
// Copyright 2020 beego
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package berror
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/pkg/errors"
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)
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// code, msg
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const errFmt = "ERROR-%d, %s"
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// Err returns an error representing c and msg. If c is OK, returns nil.
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func Error(c Code, msg string) error {
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return fmt.Errorf(errFmt, c.Code(), msg)
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}
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// Errorf returns error
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func Errorf(c Code, format string, a ...interface{}) error {
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return Error(c, fmt.Sprintf(format, a...))
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}
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func Wrap(err error, c Code, msg string) error {
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if err == nil {
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return nil
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}
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return errors.Wrap(err, fmt.Sprintf(errFmt, c.Code(), msg))
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}
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func Wrapf(err error, c Code, format string, a ...interface{}) error {
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return Wrap(err, c, fmt.Sprintf(format, a...))
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}
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// FromError is very simple. It just parse error msg and check whether code has been register
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// if code not being register, return unknown
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// if err.Error() is not valid beego error code, return unknown
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func FromError(err error) (Code, bool) {
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msg := err.Error()
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codeSeg := strings.SplitN(msg, ",", 2)
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if strings.HasPrefix(codeSeg[0], "ERROR-") {
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codeStr := strings.SplitN(codeSeg[0], "-", 2)
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if len(codeStr) < 2 {
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return Unknown, false
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}
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codeInt, e := strconv.ParseUint(codeStr[1], 10, 32)
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if e != nil {
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return Unknown, false
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}
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if code, ok := defaultCodeRegistry.Get(uint32(codeInt)); ok {
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return code, true
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}
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}
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return Unknown, false
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}
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