/
server.go
106 lines (94 loc) · 2.98 KB
/
server.go
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/*
* Copyright (c) 2022, Alibaba Group;
* 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 trace
import (
"bytes"
"sort"
"github.com/jaegertracing/jaeger/model"
"github.com/alibaba/ioc-golang/aop/common"
tracePB "github.com/alibaba/ioc-golang/extension/aop/trace/api/ioc_golang/aop/trace"
"github.com/alibaba/ioc-golang/logger"
)
const outBatchBufferAndChSize = 1000
type traceServiceImpl struct {
tracePB.UnimplementedTraceServiceServer
traceInterceptor *methodTraceInterceptor
}
func (d *traceServiceImpl) Trace(req *tracePB.TraceRequest, traceServer tracePB.TraceService_TraceServer) error {
logger.Red("[Debug Server] Receive trace request %+v\n", req.String())
defer logger.Red("[Debug Server] Trace request %s finished \n", req.String())
sdid := req.GetSdid()
method := req.GetMethod()
var fieldMatcher *common.FieldMatcher
for _, matcher := range req.GetMatchers() {
// todo multi match support
fieldMatcher = &common.FieldMatcher{
FieldIndex: int(matcher.Index),
MatchRule: matcher.GetMatchPath() + "=" + matcher.GetMatchValue(),
}
}
traceCtx := newTraceByMethodContext(sdid, method, fieldMatcher, req.MaxDepth, req.MaxLength)
d.traceInterceptor.StartTraceByMethod(traceCtx)
done := traceServer.Context().Done()
if err := traceServer.Send(&tracePB.TraceResponse{
CollectorAddress: getCollectorAddress(),
}); err != nil {
return err
}
if req.GetPushToCollectorAddress() != "" {
// start subscribing batch buffer
outBatchBuffer := make(chan *bytes.Buffer, outBatchBufferAndChSize)
getGlobalTracer().subscribeBatchBuffer(outBatchBuffer)
go func() {
for {
select {
case <-done:
getGlobalTracer().removeSubscribingBatchBuffer()
return
case batchBuffer := <-outBatchBuffer:
_ = traceServer.Send(&tracePB.TraceResponse{
ThriftSerializedSpans: batchBuffer.Bytes(),
})
}
}
}()
}
outTraceCh := make(chan []*model.Trace, outBatchBufferAndChSize)
// start subscribing traces info
getGlobalTracer().subscribeTrace(outTraceCh)
go func() {
for {
select {
case <-done:
getGlobalTracer().removeSubscribingTrace()
return
case traces := <-outTraceCh:
sortableTraces := traceSorter(traces)
sort.Sort(sortableTraces)
_ = traceServer.Send(&tracePB.TraceResponse{
Traces: sortableTraces,
})
}
}
}()
<-done
d.traceInterceptor.StopTraceByMethod()
return nil
}
func newTraceGRPCService() *traceServiceImpl {
return &traceServiceImpl{
traceInterceptor: getTraceInterceptorSingleton(),
}
}