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multiplex.go
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/
multiplex.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// 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 spanstore
import (
"github.com/uber/jaeger/model"
"github.com/uber/jaeger/pkg/multierror"
)
// MultiplexWriter is a span Writer that tries to save spans into several underlying span Writers
type MultiplexWriter struct {
spanWriters []Writer
}
// NewMultiplexWriter creates a MultiplexWriter
func NewMultiplexWriter(spanWriters ...Writer) *MultiplexWriter {
return &MultiplexWriter{
spanWriters: spanWriters,
}
}
// WriteSpan calls WriteSpan on each span writer. It will sum up failures, it is not transactional
func (c *MultiplexWriter) WriteSpan(span *model.Span) error {
var errors []error
for _, writer := range c.spanWriters {
if err := writer.WriteSpan(span); err != nil {
errors = append(errors, err)
}
}
return multierror.Wrap(errors)
}