/
abc_appdemoservice_method_call_tchannel.go
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/
abc_appdemoservice_method_call_tchannel.go
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// Code generated by zanzibar
// @generated
// Copyright (c) 2018 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 appdemoabcendpoint
import (
"context"
"runtime/debug"
"github.com/pkg/errors"
zanzibar "github.com/uber/zanzibar/runtime"
"go.uber.org/thriftrw/wire"
"go.uber.org/zap"
customAbc "github.com/uber/zanzibar/examples/example-gateway/app/demo/endpoints/abc"
endpointsIDlEndpointsAppDemoEndpointsAbc "github.com/uber/zanzibar/examples/example-gateway/build/gen-code/endpoints-idl/endpoints/app/demo/endpoints/abc"
defaultExampleTchannel "github.com/uber/zanzibar/examples/example-gateway/middlewares/default/default_example_tchannel"
module "github.com/uber/zanzibar/examples/example-gateway/build/app/demo/endpoints/abc/module"
)
// NewAppDemoServiceCallHandler creates a handler to be registered with a thrift server.
func NewAppDemoServiceCallHandler(deps *module.Dependencies) *AppDemoServiceCallHandler {
handler := &AppDemoServiceCallHandler{
Deps: deps,
}
handler.endpoint = zanzibar.NewTChannelEndpoint(
"appDemoAbc", "call", "AppDemoService::Call",
zanzibar.NewTchannelStack([]zanzibar.MiddlewareTchannelHandle{
deps.Middleware.DefaultExampleTchannel.NewMiddlewareHandle(
defaultExampleTchannel.Options{},
),
}, handler),
)
return handler
}
// AppDemoServiceCallHandler is the handler for "AppDemoService::Call".
type AppDemoServiceCallHandler struct {
Deps *module.Dependencies
endpoint *zanzibar.TChannelEndpoint
}
// Register adds the tchannel handler to the gateway's tchannel router
func (h *AppDemoServiceCallHandler) Register(g *zanzibar.Gateway) error {
return g.TChannelRouter.Register(h.endpoint)
}
// Handle handles RPC call of "AppDemoService::Call".
func (h *AppDemoServiceCallHandler) Handle(
ctx context.Context,
reqHeaders map[string]string,
wireValue *wire.Value,
) (isSuccessful bool, response zanzibar.RWTStruct, headers map[string]string, e error) {
defer func() {
if r := recover(); r != nil {
stacktrace := string(debug.Stack())
e = errors.Errorf("enpoint panic: %v, stacktrace: %v", r, stacktrace)
h.Deps.Default.ContextLogger.Error(
ctx,
"Endpoint failure: endpoint panic",
zap.Error(e),
zap.String("stacktrace", stacktrace),
zap.String("endpoint", h.endpoint.EndpointID))
h.Deps.Default.ContextMetrics.IncCounter(ctx, zanzibar.MetricEndpointPanics, 1)
isSuccessful = false
response = nil
headers = nil
}
}()
wfReqHeaders := zanzibar.ServerTChannelHeader(reqHeaders)
var res endpointsIDlEndpointsAppDemoEndpointsAbc.AppDemoService_Call_Result
workflow := customAbc.NewAppDemoServiceCallWorkflow(h.Deps)
r, wfResHeaders, err := workflow.Handle(ctx, wfReqHeaders)
resHeaders := map[string]string{}
if wfResHeaders != nil {
for _, key := range wfResHeaders.Keys() {
resHeaders[key], _ = wfResHeaders.Get(key)
}
}
if err != nil {
h.Deps.Default.ContextLogger.Error(ctx, "Endpoint failure: handler returned error", zap.Error(err))
return false, nil, resHeaders, err
}
res.Success = &r
return err == nil, &res, resHeaders, nil
}