| /* |
| 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 errors |
| |
| import ( |
| "errors" |
| "fmt" |
| "os" |
| "strconv" |
| "strings" |
| ) |
| import cerror "github.com/cockroachdb/errors" |
| |
| type ( |
| crdbErrorImpl struct { |
| wrappedRaw error |
| wrapped *crdbErrorImpl |
| msg *errMessage |
| data interface{} |
| t *Type |
| } |
| ) |
| |
| var enableStacktraces = false |
| |
| func init() { |
| enable, exists := os.LookupEnv("ENABLE_STACKTRACE") |
| if !exists { |
| return |
| } |
| enableStacktraces, _ = strconv.ParseBool(enable) |
| } |
| |
| func (e *crdbErrorImpl) Error() string { |
| //crdb spits out a bunch of excess strings, so do some cleanup |
| rawMsg := fmt.Sprintf("%+v", e.wrappedRaw) |
| parts := strings.Split(rawMsg, "\n(1) ") |
| if len(parts) == 1 { |
| return parts[0] |
| } |
| return parts[1] |
| } |
| |
| func (e *crdbErrorImpl) Messages() Messages { |
| return e.getMessages(func(err *crdbErrorImpl) *errMessage { |
| return err.msg |
| }) |
| } |
| |
| func (e *crdbErrorImpl) Unwrap() error { |
| if e.wrapped != nil { |
| return e.wrapped |
| } |
| return cerror.Cause(e.wrappedRaw) |
| } |
| |
| func (e *crdbErrorImpl) GetType() *Type { |
| return e.t |
| } |
| |
| func (e *crdbErrorImpl) GetData() interface{} { |
| return e.data |
| } |
| |
| func (e *crdbErrorImpl) As(t *Type) Error { |
| err := e |
| for { |
| if err.t == t { |
| return e |
| } |
| lakeErr := AsLakeErrorType(err.Unwrap()) |
| if lakeErr == nil { |
| return nil |
| } |
| err = lakeErr.(*crdbErrorImpl) |
| } |
| } |
| |
| func (e *crdbErrorImpl) getMessages(getMessage func(*crdbErrorImpl) *errMessage) []*errMessage { |
| msgs := []*errMessage{} |
| err := e |
| ok := false |
| for { |
| msg := getMessage(err) |
| if len(msg.msgs) > 0 { |
| msgs = append(msgs, msg) |
| } |
| unwrapped := err.Unwrap() |
| if unwrapped == nil { |
| break |
| } |
| err, ok = unwrapped.(*crdbErrorImpl) |
| if !ok { |
| // don't append the message if the error is "external" |
| break |
| } |
| } |
| return msgs |
| } |
| |
| func newSingleCrdbError(t *Type, err error, message string, opts ...Option) Error { |
| cfg := &options{} |
| for _, opt := range opts { |
| opt(cfg) |
| } |
| cfg.stackOffset += 1 |
| msg := &errMessage{} |
| if cast, ok := err.(*crdbErrorImpl); ok { |
| if t == Default { // inherit wrapped error's type |
| t = cast.GetType() |
| } |
| } |
| msg.addMessage(t, message) |
| return newCrdbError(t, err, msg, cfg) |
| } |
| |
| func newCombinedCrdbError(t *Type, errs []error) Error { |
| msg := &errMessage{} |
| for _, e := range errs { |
| if le, ok := e.(*crdbErrorImpl); ok { |
| msg.appendMessage(le.msg.getMessage()) |
| } else { |
| msg.appendMessage(e.Error()) |
| } |
| } |
| opts := &options{} |
| opts.stackOffset += 1 |
| return newCrdbError(t, nil, msg, opts) |
| } |
| |
| func newCrdbError(t *Type, err error, msg *errMessage, opts *options) *crdbErrorImpl { |
| errType := t |
| var wrappedErr *crdbErrorImpl |
| var wrappedRaw error |
| opts.stackOffset += 2 |
| if err == nil { |
| if enableStacktraces { |
| wrappedRaw = cerror.NewWithDepth(int(opts.stackOffset), msg.getPrettifiedMessage()) |
| } else { |
| wrappedRaw = errors.New(msg.getPrettifiedMessage()) |
| } |
| } else { |
| if cast, ok := err.(*crdbErrorImpl); ok { |
| err = cast.wrappedRaw |
| wrappedErr = cast |
| } |
| if enableStacktraces { |
| wrappedRaw = cerror.WrapWithDepth(int(opts.stackOffset), err, msg.getPrettifiedMessage()) |
| } else { |
| wrappedRaw = cerror.WithDetail(err, msg.getPrettifiedMessage()) |
| } |
| } |
| impl := &crdbErrorImpl{ |
| wrappedRaw: wrappedRaw, |
| wrapped: wrappedErr, |
| msg: msg, |
| data: opts.data, |
| t: errType, |
| } |
| return impl |
| } |
| |
| var _ Error = (*crdbErrorImpl)(nil) |