forked from hertz-contrib/obs-opentelemetry
/
options.go
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/
options.go
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// Copyright 2022 CloudWeGo Authors.
//
// Licensed 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 provider
import (
"go.opentelemetry.io/contrib/propagators/b3"
"go.opentelemetry.io/contrib/propagators/ot"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.10.0"
)
// Option opts for opentelemetry tracer provider
type Option interface {
apply(cfg *config)
}
type option func(cfg *config)
func (fn option) apply(cfg *config) {
fn(cfg)
}
type config struct {
enableTracing bool
enableMetrics bool
exportInsecure bool
exportEnableCompression bool
exportEndpoint string
exportHeaders map[string]string
resource *resource.Resource
sdkTracerProvider *sdktrace.TracerProvider
sampler sdktrace.Sampler
resourceAttributes []attribute.KeyValue
resourceDetectors []resource.Detector
textMapPropagator propagation.TextMapPropagator
meterProvider *metric.MeterProvider
}
func newConfig(opts []Option) *config {
cfg := defaultConfig()
for _, opt := range opts {
opt.apply(cfg)
}
return cfg
}
func defaultConfig() *config {
return &config{
enableTracing: true,
enableMetrics: true,
sampler: sdktrace.AlwaysSample(),
textMapPropagator: propagation.NewCompositeTextMapPropagator(
propagation.NewCompositeTextMapPropagator(
b3.New(),
ot.OT{},
propagation.Baggage{},
propagation.TraceContext{},
),
),
}
}
// WithServiceName configures `service.name` resource attribute
func WithServiceName(serviceName string) Option {
return option(func(cfg *config) {
cfg.resourceAttributes = append(cfg.resourceAttributes, semconv.ServiceNameKey.String(serviceName))
})
}
// WithDeploymentEnvironment configures `deployment.environment` resource attribute
func WithDeploymentEnvironment(env string) Option {
return option(func(cfg *config) {
cfg.resourceAttributes = append(cfg.resourceAttributes, semconv.DeploymentEnvironmentKey.String(env))
})
}
// WithServiceNamespace configures `service.namespace` resource attribute
func WithServiceNamespace(namespace string) Option {
return option(func(cfg *config) {
cfg.resourceAttributes = append(cfg.resourceAttributes, semconv.ServiceNamespaceKey.String(namespace))
})
}
// WithResourceAttribute configures resource attribute.
func WithResourceAttribute(rAttr attribute.KeyValue) Option {
return option(func(cfg *config) {
cfg.resourceAttributes = append(cfg.resourceAttributes, rAttr)
})
}
// WithResourceAttributes configures resource attributes.
func WithResourceAttributes(rAttrs []attribute.KeyValue) Option {
return option(func(cfg *config) {
cfg.resourceAttributes = rAttrs
})
}
// WithResource configures resource
func WithResource(resource *resource.Resource) Option {
return option(func(cfg *config) {
cfg.resource = resource
})
}
// WithExportEndpoint configures export endpoint
func WithExportEndpoint(endpoint string) Option {
return option(func(cfg *config) {
cfg.exportEndpoint = endpoint
})
}
// WithEnableTracing enable tracing
func WithEnableTracing(enableTracing bool) Option {
return option(func(cfg *config) {
cfg.enableTracing = enableTracing
})
}
// WithEnableMetrics enable metrics
func WithEnableMetrics(enableMetrics bool) Option {
return option(func(cfg *config) {
cfg.enableMetrics = enableMetrics
})
}
// WithTextMapPropagator configures propagation
func WithTextMapPropagator(p propagation.TextMapPropagator) Option {
return option(func(cfg *config) {
cfg.textMapPropagator = p
})
}
// WithResourceDetector configures resource detector
func WithResourceDetector(detector resource.Detector) Option {
return option(func(cfg *config) {
cfg.resourceDetectors = append(cfg.resourceDetectors, detector)
})
}
// WithHeaders configures gRPC requests headers for exported telemetry data
func WithHeaders(headers map[string]string) Option {
return option(func(cfg *config) {
cfg.exportHeaders = headers
})
}
// WithInsecure disables client transport security for the exporter's gRPC
func WithInsecure() Option {
return option(func(cfg *config) {
cfg.exportInsecure = true
})
}
// WithEnableCompression enable gzip transport compression
func WithEnableCompression() Option {
return option(func(cfg *config) {
cfg.exportEnableCompression = true
})
}
// WithSampler configures sampler
func WithSampler(sampler sdktrace.Sampler) Option {
return option(func(cfg *config) {
cfg.sampler = sampler
})
}
// WithSdkTracerProvider configures sdkTracerProvider
func WithSdkTracerProvider(sdkTracerProvider *sdktrace.TracerProvider) Option {
return option(func(cfg *config) {
cfg.sdkTracerProvider = sdkTracerProvider
})
}
// WithMeterProvider configures MeterProvider
func WithMeterProvider(meterProvider *metric.MeterProvider) Option {
return option(func(cfg *config) {
cfg.meterProvider = meterProvider
})
}