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/*
* Copyright 2018 Expedia Group.
*
* 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 haystack
import (
"github.com/opentracing/opentracing-go"
)
// TracerOption is a function that sets some option on the tracer
type TracerOption func(tracer *Tracer)
/*TracerOptions a list of tracer options*/
type TracerOptions struct{}
/*TracerOptionsFactory factory to create multiple tracer options*/
var TracerOptionsFactory TracerOptions
/*Propagator registers a new Propagator*/
func (t TracerOptions) Propagator(format interface{}, propagator Propagator) TracerOption {
return func(tracer *Tracer) {
tracer.propagators[format] = propagator
}
}
/*Tag adds a common tag in every span*/
func (t TracerOptions) Tag(key string, value interface{}) TracerOption {
return func(tracer *Tracer) {
tracer.commonTags = append(tracer.commonTags, opentracing.Tag{Key: key, Value: value})
}
}
/*Logger set the logger type*/
func (t TracerOptions) Logger(logger Logger) TracerOption {
return func(tracer *Tracer) {
tracer.logger = logger
}
}
/*UseDualSpanMode sets the tracer in dual span mode*/
func (t TracerOptions) UseDualSpanMode() TracerOption {
return func(tracer *Tracer) {
tracer.useDualSpanMode = true
}
}
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