50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
// Copyright The OpenTelemetry Authors
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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 oterr provides helper functions to create and process
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// OpenTelemetry specific errors
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package componenterror
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import (
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"errors"
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"fmt"
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"strings"
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)
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var (
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// ErrAlreadyStarted indicates an error on starting an already-started component.
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ErrAlreadyStarted = errors.New("already started")
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// ErrAlreadyStopped indicates an error on stoping an already-stopped component.
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ErrAlreadyStopped = errors.New("already stopped")
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// ErrNilNextConsumer indicates an error on nil next consumer.
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ErrNilNextConsumer = errors.New("nil nextConsumer")
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)
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// CombineErrors converts a list of errors into one error.
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func CombineErrors(errs []error) error {
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numErrors := len(errs)
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if numErrors == 1 {
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return errs[0]
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} else if numErrors > 1 {
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errMsgs := make([]string, 0, numErrors)
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for _, err := range errs {
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errMsgs = append(errMsgs, err.Error())
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}
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return fmt.Errorf("[%s]", strings.Join(errMsgs, "; "))
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}
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return nil
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}
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