dubbo.apache.org/dubbo-go/v3@v3.1.1/common/extension/otel_trace.go (about)

     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   * contributor license agreements.  See the NOTICE file distributed with
     4   * this work for additional information regarding copyright ownership.
     5   * The ASF licenses this file to You under the Apache License, Version 2.0
     6   * (the "License"); you may not use this file except in compliance with
     7   * the License.  You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package extension
    19  
    20  import (
    21  	"context"
    22  )
    23  
    24  import (
    25  	"github.com/dubbogo/gost/log/logger"
    26  )
    27  
    28  import (
    29  	"dubbo.apache.org/dubbo-go/v3/otel/trace"
    30  )
    31  
    32  var traceExporterMap = make(map[string]func(config *trace.ExporterConfig) (trace.Exporter, error), 4)
    33  
    34  func SetTraceExporter(name string, createFunc func(config *trace.ExporterConfig) (trace.Exporter, error)) {
    35  	traceExporterMap[name] = createFunc
    36  }
    37  
    38  func GetTraceExporter(name string, config *trace.ExporterConfig) (trace.Exporter, error) {
    39  	createFunc, ok := traceExporterMap[name]
    40  	if !ok {
    41  		panic("Cannot find the trace provider with name " + name)
    42  	}
    43  	return createFunc(config)
    44  }
    45  
    46  func GetTraceShutdownCallback() func() {
    47  	return func() {
    48  		for name, createFunc := range traceExporterMap {
    49  			if exporter, err := createFunc(nil); err == nil {
    50  				if err := exporter.GetTracerProvider().Shutdown(context.Background()); err != nil {
    51  					logger.Errorf("Graceful shutdown --- Failed to shutdown trace provider %s, error: %s", name, err.Error())
    52  				} else {
    53  					logger.Infof("Graceful shutdown --- Tracer provider of %s", name)
    54  				}
    55  			}
    56  		}
    57  	}
    58  }