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middlewares.go
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middlewares.go
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/*
* Copyright 2021 CloudWeGo 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 polaris
import (
"context"
"sync"
"time"
"github.com/cloudwego/kitex/pkg/endpoint"
"github.com/cloudwego/kitex/pkg/rpcinfo"
"github.com/cloudwego/kitex/pkg/rpcinfo/remoteinfo"
"github.com/polarismesh/polaris-go/api"
)
const (
retSuccessCode = 0
retFailCode = -1
)
// NewUpdateServiceCallResultMW report call result for circuitbreak
func NewUpdateServiceCallResultMW(configFile ...string) endpoint.Middleware {
return func(next endpoint.Endpoint) endpoint.Endpoint {
var (
callResultSdkCtx api.SDKContext
callResultConsumerAPI api.ConsumerAPI
callResultOnce sync.Once
)
var err error
callResultOnce.Do(func() {
callResultSdkCtx, err = GetPolarisConfig(configFile...)
callResultConsumerAPI = api.NewConsumerAPIByContext(callResultSdkCtx)
})
if err != nil {
return func(ctx context.Context, req, resp interface{}) (err error) {
return err
}
}
return func(ctx context.Context, request, response interface{}) error {
retCode := int32(retSuccessCode)
retStatus := api.RetSuccess
begin := time.Now()
kitexCallErr := next(ctx, request, response)
cost := time.Since(begin)
if kitexCallErr != nil {
retCode = retFailCode
retStatus = api.RetFail
}
svcCallResult := &api.ServiceCallResult{}
ri := rpcinfo.GetRPCInfo(ctx)
svcCallResult.CalledInstance = ri.To().(remoteinfo.RemoteInfo).GetInstance().(*polarisKitexInstance).polarisInstance
svcCallResult.SetRetCode(retCode)
svcCallResult.SetRetStatus(retStatus)
svcCallResult.SetDelay(cost)
// 执行调用结果上报
_ = callResultConsumerAPI.UpdateServiceCallResult(svcCallResult)
return kitexCallErr
}
}
}