| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 tracing |
| |
| import ( |
| "github.com/apache/servicecomb-service-center/pkg/chain" |
| "github.com/apache/servicecomb-service-center/pkg/rest" |
| "github.com/apache/servicecomb-service-center/server/plugin" |
| "net/http" |
| "strconv" |
| ) |
| |
| type TracingHandler struct { |
| } |
| |
| func (h *TracingHandler) Handle(i *chain.Invocation) { |
| w, r, op := i.Context().Value(rest.CTX_RESPONSE).(http.ResponseWriter), |
| i.Context().Value(rest.CTX_REQUEST).(*http.Request), |
| i.Context().Value(rest.CTX_MATCH_FUNC).(string) |
| |
| span := plugin.Plugins().Tracing().ServerBegin(op, r) |
| |
| i.Next(chain.WithAsyncFunc(func(ret chain.Result) { |
| statusCode := w.Header().Get(rest.HEADER_RESPONSE_STATUS) |
| code, _ := strconv.ParseInt(statusCode, 10, 64) |
| if code == 0 { |
| code = 200 |
| } |
| plugin.Plugins().Tracing().ServerEnd(span, int(code), statusCode) |
| })) |
| } |
| |
| func RegisterHandlers() { |
| chain.RegisterHandler(rest.SERVER_CHAIN_NAME, &TracingHandler{}) |
| } |