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-rw-r--r--vendor/github.com/uber/jaeger-client-go/header.go64
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diff --git a/vendor/github.com/uber/jaeger-client-go/header.go b/vendor/github.com/uber/jaeger-client-go/header.go
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+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// 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 jaeger
+
+// HeadersConfig contains the values for the header keys that Jaeger will use.
+// These values may be either custom or default depending on whether custom
+// values were provided via a configuration.
+type HeadersConfig struct {
+ // JaegerDebugHeader is the name of HTTP header or a TextMap carrier key which,
+ // if found in the carrier, forces the trace to be sampled as "debug" trace.
+ // The value of the header is recorded as the tag on the root span, so that the
+ // trace can be found in the UI using this value as a correlation ID.
+ JaegerDebugHeader string `yaml:"jaegerDebugHeader"`
+
+ // JaegerBaggageHeader is the name of the HTTP header that is used to submit baggage.
+ // It differs from TraceBaggageHeaderPrefix in that it can be used only in cases where
+ // a root span does not exist.
+ JaegerBaggageHeader string `yaml:"jaegerBaggageHeader"`
+
+ // TraceContextHeaderName is the http header name used to propagate tracing context.
+ // This must be in lower-case to avoid mismatches when decoding incoming headers.
+ TraceContextHeaderName string `yaml:"TraceContextHeaderName"`
+
+ // TraceBaggageHeaderPrefix is the prefix for http headers used to propagate baggage.
+ // This must be in lower-case to avoid mismatches when decoding incoming headers.
+ TraceBaggageHeaderPrefix string `yaml:"traceBaggageHeaderPrefix"`
+}
+
+func (c *HeadersConfig) applyDefaults() *HeadersConfig {
+ if c.JaegerBaggageHeader == "" {
+ c.JaegerBaggageHeader = JaegerBaggageHeader
+ }
+ if c.JaegerDebugHeader == "" {
+ c.JaegerDebugHeader = JaegerDebugHeader
+ }
+ if c.TraceBaggageHeaderPrefix == "" {
+ c.TraceBaggageHeaderPrefix = TraceBaggageHeaderPrefix
+ }
+ if c.TraceContextHeaderName == "" {
+ c.TraceContextHeaderName = TraceContextHeaderName
+ }
+ return c
+}
+
+func getDefaultHeadersConfig() *HeadersConfig {
+ return &HeadersConfig{
+ JaegerDebugHeader: JaegerDebugHeader,
+ JaegerBaggageHeader: JaegerBaggageHeader,
+ TraceContextHeaderName: TraceContextHeaderName,
+ TraceBaggageHeaderPrefix: TraceBaggageHeaderPrefix,
+ }
+}