| /* |
| * 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 getty |
| |
| import ( |
| "github.com/opentracing/opentracing-go" |
| ) |
| |
| import ( |
| invocation_impl "dubbo.apache.org/dubbo-go/v3/protocol/invocation" |
| ) |
| |
| func injectTraceCtx(currentSpan opentracing.Span, inv *invocation_impl.RPCInvocation) error { |
| // inject opentracing ctx |
| traceAttachments := filterContext(inv.Attachments()) |
| carrier := opentracing.TextMapCarrier(traceAttachments) |
| err := opentracing.GlobalTracer().Inject(currentSpan.Context(), opentracing.TextMap, carrier) |
| if err == nil { |
| fillTraceAttachments(inv.Attachments(), traceAttachments) |
| } |
| return err |
| } |
| |
| func filterContext(attachments map[string]interface{}) map[string]string { |
| traceAttchment := make(map[string]string) |
| for k, v := range attachments { |
| if r, ok := v.(string); ok { |
| traceAttchment[k] = r |
| } |
| } |
| return traceAttchment |
| } |
| |
| func fillTraceAttachments(attachments map[string]interface{}, traceAttachment map[string]string) { |
| for k, v := range traceAttachment { |
| attachments[k] = v |
| } |
| } |