diff options
Diffstat (limited to 'vendor/github.com/uber/jaeger-client-go/propagation.go')
| -rw-r--r-- | vendor/github.com/uber/jaeger-client-go/propagation.go | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/vendor/github.com/uber/jaeger-client-go/propagation.go b/vendor/github.com/uber/jaeger-client-go/propagation.go index abca67a3c..5b50cfb71 100644 --- a/vendor/github.com/uber/jaeger-client-go/propagation.go +++ b/vendor/github.com/uber/jaeger-client-go/propagation.go @@ -51,15 +51,17 @@ type Extractor interface { Extract(carrier interface{}) (SpanContext, error) } -type textMapPropagator struct { +// TextMapPropagator is a combined Injector and Extractor for TextMap format +type TextMapPropagator struct { headerKeys *HeadersConfig metrics Metrics encodeValue func(string) string decodeValue func(string) string } -func newTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPropagator { - return &textMapPropagator{ +// NewTextMapPropagator creates a combined Injector and Extractor for TextMap format +func NewTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *TextMapPropagator { + return &TextMapPropagator{ headerKeys: headerKeys, metrics: metrics, encodeValue: func(val string) string { @@ -71,8 +73,9 @@ func newTextMapPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPr } } -func newHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMapPropagator { - return &textMapPropagator{ +// NewHTTPHeaderPropagator creates a combined Injector and Extractor for HTTPHeaders format +func NewHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *TextMapPropagator { + return &TextMapPropagator{ headerKeys: headerKeys, metrics: metrics, encodeValue: func(val string) string { @@ -88,19 +91,22 @@ func newHTTPHeaderPropagator(headerKeys *HeadersConfig, metrics Metrics) *textMa } } -type binaryPropagator struct { +// BinaryPropagator is a combined Injector and Extractor for Binary format +type BinaryPropagator struct { tracer *Tracer buffers sync.Pool } -func newBinaryPropagator(tracer *Tracer) *binaryPropagator { - return &binaryPropagator{ +// NewBinaryPropagator creates a combined Injector and Extractor for Binary format +func NewBinaryPropagator(tracer *Tracer) *BinaryPropagator { + return &BinaryPropagator{ tracer: tracer, buffers: sync.Pool{New: func() interface{} { return &bytes.Buffer{} }}, } } -func (p *textMapPropagator) Inject( +// Inject implements Injector of TextMapPropagator +func (p *TextMapPropagator) Inject( sc SpanContext, abstractCarrier interface{}, ) error { @@ -121,7 +127,8 @@ func (p *textMapPropagator) Inject( return nil } -func (p *textMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) { +// Extract implements Extractor of TextMapPropagator +func (p *TextMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) { textMapReader, ok := abstractCarrier.(opentracing.TextMapReader) if !ok { return emptyContext, opentracing.ErrInvalidCarrier @@ -166,7 +173,8 @@ func (p *textMapPropagator) Extract(abstractCarrier interface{}) (SpanContext, e return ctx, nil } -func (p *binaryPropagator) Inject( +// Inject implements Injector of BinaryPropagator +func (p *BinaryPropagator) Inject( sc SpanContext, abstractCarrier interface{}, ) error { @@ -207,7 +215,8 @@ func (p *binaryPropagator) Inject( return nil } -func (p *binaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) { +// Extract implements Extractor of BinaryPropagator +func (p *BinaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) { carrier, ok := abstractCarrier.(io.Reader) if !ok { return emptyContext, opentracing.ErrInvalidCarrier @@ -269,7 +278,7 @@ func (p *binaryPropagator) Extract(abstractCarrier interface{}) (SpanContext, er // is converted to map[string]string { "key1" : "value1", // "key2" : "value2", // "key3" : "value3" } -func (p *textMapPropagator) parseCommaSeparatedMap(value string) map[string]string { +func (p *TextMapPropagator) parseCommaSeparatedMap(value string) map[string]string { baggage := make(map[string]string) value, err := url.QueryUnescape(value) if err != nil { @@ -289,12 +298,12 @@ func (p *textMapPropagator) parseCommaSeparatedMap(value string) map[string]stri // Converts a baggage item key into an http header format, // by prepending TraceBaggageHeaderPrefix and encoding the key string -func (p *textMapPropagator) addBaggageKeyPrefix(key string) string { +func (p *TextMapPropagator) addBaggageKeyPrefix(key string) string { // TODO encodeBaggageKeyAsHeader add caching and escaping return fmt.Sprintf("%v%v", p.headerKeys.TraceBaggageHeaderPrefix, key) } -func (p *textMapPropagator) removeBaggageKeyPrefix(key string) string { +func (p *TextMapPropagator) removeBaggageKeyPrefix(key string) string { // TODO decodeBaggageHeaderKey add caching and escaping return key[len(p.headerKeys.TraceBaggageHeaderPrefix):] } |