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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 jaeger
- import (
- "io"
- )
- // Transport abstracts the method of sending spans out of process.
- // Implementations are NOT required to be thread-safe; the RemoteReporter
- // is expected to only call methods on the Transport from the same go-routine.
- type Transport interface {
- // Append converts the span to the wire representation and adds it
- // to sender's internal buffer. If the buffer exceeds its designated
- // size, the transport should call Flush() and return the number of spans
- // flushed, otherwise return 0. If error is returned, the returned number
- // of spans is treated as failed span, and reported to metrics accordingly.
- Append(span *Span) (int, error)
- // Flush submits the internal buffer to the remote server. It returns the
- // number of spans flushed. If error is returned, the returned number of
- // spans is treated as failed span, and reported to metrics accordingly.
- Flush() (int, error)
- io.Closer
- }
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