| // Licensed to 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. Apache Software Foundation (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 ginv2 |
| |
| import ( |
| "fmt" |
| |
| "github.com/gin-gonic/gin" |
| |
| "github.com/apache/skywalking-go/plugins/core/operator" |
| "github.com/apache/skywalking-go/plugins/core/tracing" |
| ) |
| |
| type HTTPInterceptor struct { |
| } |
| |
| func (h *HTTPInterceptor) BeforeInvoke(invocation *operator.Invocation) error { |
| context := invocation.Args[0].(*gin.Context) |
| s, err := tracing.CreateEntrySpan( |
| fmt.Sprintf("%s:%s", context.Request.Method, context.Request.URL.Path), func(headerKey string) (string, error) { |
| return context.Request.Header.Get(headerKey), nil |
| }, |
| tracing.WithLayer(tracing.SpanLayerHTTP), |
| tracing.WithTag(tracing.TagHTTPMethod, context.Request.Method), |
| tracing.WithTag(tracing.TagURL, context.Request.Host+context.Request.URL.Path), |
| tracing.WithComponent(5006)) |
| if err != nil { |
| return err |
| } |
| invocation.Context = s |
| return nil |
| } |
| |
| func (h *HTTPInterceptor) AfterInvoke(invocation *operator.Invocation, result ...interface{}) error { |
| if invocation.Context == nil { |
| return nil |
| } |
| context := invocation.Args[0].(*gin.Context) |
| span := invocation.Context.(tracing.Span) |
| span.Tag(tracing.TagStatusCode, fmt.Sprintf("%d", context.Writer.Status())) |
| if len(context.Errors) > 0 { |
| span.Error(context.Errors.String()) |
| } |
| span.End() |
| return nil |
| } |