style: format imports

common/extension/otel_trace.go

@@ -19,7 +19,13 @@ package extension
 
 import (
 	"context"
+)
+
+import (
 	"dubbo.apache.org/dubbo-go/v3/otel/trace"
+)
+
+import (
 	"github.com/dubbogo/gost/log/logger"
 )
 

config/otel_config_test.go

@@ -1,18 +1,39 @@
+/*
+ * 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 config
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
+import (
+	"github.com/stretchr/testify/assert"
+)
+
 func TestNewOtelConfigBuilder(t *testing.T) {
 	config := NewOtelConfigBuilder().Build()
 	assert.NotNil(t, config)
 	assert.NotNil(t, config.TraceConfig)
 
-	err := config.Init()
+	ac := NewApplicationConfigBuilder().Build()
+	err := config.Init(ac)
 	assert.NoError(t, err)
 
-	tpc := config.TraceConfig.toTraceProviderConfig()
+	tpc := config.TraceConfig.toTraceProviderConfig(ac)
 	assert.NotNil(t, tpc)
 }

filter/otel/trace/doc.go

@@ -15,6 +15,6 @@
  * limitations under the License.
  */
 
-// Package jaeger instruments dubbogo with open-telemetry
+// Package trace instruments dubbogo with open-telemetry
 // (https://github.com/open-telemetry/opentelemetry-go).
 package trace

otel/trace/exporter.go

@@ -20,6 +20,9 @@ package trace
 import (
 	"errors"
 	"fmt"
+)
+
+import (
 	"github.com/dubbogo/gost/log/logger"
 	"go.opentelemetry.io/contrib/propagators/b3"
 	"go.opentelemetry.io/otel/propagation"
@@ -57,6 +60,7 @@ func (e *DefaultExporter) GetPropagator() propagation.TextMapPropagator {
 	return e.Propagator
 }
 
+// NewExporter is an absolute function with @customFunc to create a spec exporter
 func NewExporter(config *ExporterConfig, customFunc func() (sdktrace.SpanExporter, error)) (tracerProvider *sdktrace.TracerProvider, propagator propagation.TextMapPropagator, err error) {
 	if config == nil {
 		err = errors.New("otel exporter config is nil")

otel/trace/jaeger/exporter.go

@@ -17,12 +17,18 @@
 
 package jaeger
 
+import (
+	"sync"
+)
+
 import (
 	"dubbo.apache.org/dubbo-go/v3/common/extension"
 	"dubbo.apache.org/dubbo-go/v3/otel/trace"
+)
+
+import (
 	"go.opentelemetry.io/otel/exporters/jaeger"
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
-	"sync"
 )
 
 var (

otel/trace/otlp/exporter.go

@@ -19,13 +19,19 @@ package otlp
 
 import (
 	"context"
+	"sync"
+)
+
+import (
 	"dubbo.apache.org/dubbo-go/v3/common/extension"
 	"dubbo.apache.org/dubbo-go/v3/otel/trace"
+)
+
+import (
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
-	"sync"
 )
 
 var (

otel/trace/zipkin/exporter.go

@@ -17,12 +17,18 @@
 
 package zipkin
 
+import (
+	"sync"
+)
+
 import (
 	"dubbo.apache.org/dubbo-go/v3/common/extension"
 	"dubbo.apache.org/dubbo-go/v3/otel/trace"
+)
+
+import (
 	"go.opentelemetry.io/otel/exporters/zipkin"
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
-	"sync"
 )
 
 var (