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echo.go
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echo.go
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package oneway
import (
"bytes"
"context"
"time"
"go.uber.org/yarpc"
"go.uber.org/yarpc/encoding/raw"
"go.uber.org/yarpc/transport"
)
type onewayHandler struct {
Outbound transport.OnewayOutbound
}
// EchoRaw implements the echo/raw procedure.
func (o *onewayHandler) EchoRaw(ctx context.Context, reqMeta yarpc.ReqMeta, body []byte) error {
//make call back to the client
o.callHome(body)
return nil
}
type jsonToken struct{ Token string }
// EchoJSON implements the echo/json procedure.
func (o *onewayHandler) EchoJSON(ctx context.Context, reqMeta yarpc.ReqMeta, token *jsonToken) error {
//make call back to the client
o.callHome([]byte(token.Token))
return nil
}
// Echo implements the Oneway::Echo procedure.
func (o *onewayHandler) Echo(ctx context.Context, reqMeta yarpc.ReqMeta, Token *string) error {
o.callHome([]byte(*Token))
return nil
}
func (o *onewayHandler) callHome(body []byte) {
// reduce the chance of a race condition
time.Sleep(time.Millisecond * 100)
ctx := context.Background()
o.Outbound.CallOneway(ctx, &transport.Request{
Caller: "oneway-test",
Service: "client",
Procedure: "call-back",
Encoding: raw.Encoding,
Body: bytes.NewReader(body),
})
}