/
combine.go
53 lines (48 loc) · 1.32 KB
/
combine.go
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// Copyright The OpenTelemetry Authors
//
// Licensed 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 consumererror
import (
"fmt"
"strings"
)
// Combine converts a list of errors into one error.
//
// If any of the errors in errs are Permanent then the returned
// error will also be Permanent.
//
// Any signal data associated with an error from this package
// will be discarded.
func Combine(errs []error) error {
numErrors := len(errs)
if numErrors == 0 {
// No errors
return nil
}
if numErrors == 1 {
return errs[0]
}
errMsgs := make([]string, 0, numErrors)
permanent := false
for _, err := range errs {
if !permanent && IsPermanent(err) {
permanent = true
}
errMsgs = append(errMsgs, err.Error())
}
err := fmt.Errorf("[%s]", strings.Join(errMsgs, "; "))
if permanent {
err = Permanent(err)
}
return err
}