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feat: extend configuration to support custom randomNumber func #555

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merged 12 commits into from Dec 23, 2020
Merged

feat: extend configuration to support custom randomNumber func #555

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9ad924f
feat: costume tracer randomNumber func on config.New() called
Dec 18, 2020
e547a1b
fix: modified the bad spelling and added unit test
Dec 21, 2020
29305a4
fix: modified bad spelling
Dec 21, 2020
71e806a
fix: modified the comments
Dec 21, 2020
ede9819
feat: costume tracer randomNumber func on config.New() called
Dec 18, 2020
57aeb6a
fix: modified the bad spelling and added unit test
Dec 21, 2020
8020a65
fix: modified bad spelling
Dec 21, 2020
8e592e8
fix: modified the comments
Dec 21, 2020
2cf204f
Merge branch 'feature/with_random_number' of https://github.com/guanw…
guanwenbogit Dec 21, 2020
64f845f
fix: test the creating of traceID with customer randomNum func
guanwenbogit Dec 23, 2020
31a03b9
fix: lint fmt
guanwenbogit Dec 23, 2020
4e06150
fix: wrong params order
guanwenbogit Dec 23, 2020
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4 changes: 4 additions & 0 deletions config/config.go
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Expand Up @@ -277,6 +277,10 @@ func (c Configuration) NewTracer(options ...Option) (opentracing.Tracer, io.Clos
tracerOptions = append(tracerOptions, jaeger.TracerOptions.Gen128Bit(true))
}

if opts.randomNumber != nil {
tracerOptions = append(tracerOptions, jaeger.TracerOptions.RandomNumber(opts.randomNumber))
}

for _, tag := range opts.tags {
tracerOptions = append(tracerOptions, jaeger.TracerOptions.Tag(tag.Key, tag.Value))
}
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10 changes: 10 additions & 0 deletions config/config_test.go
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Expand Up @@ -899,3 +899,13 @@ func TestThrottlerDefaultConfig(t *testing.T) {
assert.NoError(t, err)
defer closeCloser(t, closer)
}

func TestWithRandomNumber(t *testing.T) {
cfg := &Configuration{
ServiceName: "test-random-number",
}
randomNum := func() uint64 { return 1 }
_, closer, err := cfg.NewTracer(WithRandomNumber(randomNum))
assert.NoError(t, err)
defer closeCloser(t, closer)
yurishkuro marked this conversation as resolved.
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}
8 changes: 8 additions & 0 deletions config/options.go
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Expand Up @@ -40,6 +40,7 @@ type Options struct {
tags []opentracing.Tag
injectors map[interface{}]jaeger.Injector
extractors map[interface{}]jaeger.Extractor
randomNumber func() uint64
}

// Metrics creates an Option that initializes Metrics in the tracer,
Expand Down Expand Up @@ -147,6 +148,13 @@ func Extractor(format interface{}, extractor jaeger.Extractor) Option {
}
}

// WithRandomNumber supplies a random number generator function to the Tracer used to generate trace and span IDs.
func WithRandomNumber(f func() uint64) Option {
return func(c *Options) {
c.randomNumber = f
}
}

func applyOptions(options ...Option) Options {
opts := Options{
injectors: make(map[interface{}]jaeger.Injector),
Expand Down