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-rw-r--r--vendor/github.com/opentracing/opentracing-go/.gitignore1
-rw-r--r--vendor/github.com/opentracing/opentracing-go/.travis.yml20
-rw-r--r--vendor/github.com/opentracing/opentracing-go/CHANGELOG.md63
-rw-r--r--vendor/github.com/opentracing/opentracing-go/LICENSE201
-rw-r--r--vendor/github.com/opentracing/opentracing-go/Makefile20
-rw-r--r--vendor/github.com/opentracing/opentracing-go/README.md171
-rw-r--r--vendor/github.com/opentracing/opentracing-go/ext.go24
-rw-r--r--vendor/github.com/opentracing/opentracing-go/ext/field.go17
-rw-r--r--vendor/github.com/opentracing/opentracing-go/ext/tags.go215
-rw-r--r--vendor/github.com/opentracing/opentracing-go/globaltracer.go42
-rw-r--r--vendor/github.com/opentracing/opentracing-go/go.mod5
-rw-r--r--vendor/github.com/opentracing/opentracing-go/go.sum7
-rw-r--r--vendor/github.com/opentracing/opentracing-go/gocontext.go65
-rw-r--r--vendor/github.com/opentracing/opentracing-go/log/field.go282
-rw-r--r--vendor/github.com/opentracing/opentracing-go/log/util.go61
-rw-r--r--vendor/github.com/opentracing/opentracing-go/noop.go64
-rw-r--r--vendor/github.com/opentracing/opentracing-go/propagation.go176
-rw-r--r--vendor/github.com/opentracing/opentracing-go/span.go189
-rw-r--r--vendor/github.com/opentracing/opentracing-go/tracer.go304
19 files changed, 0 insertions, 1927 deletions
diff --git a/vendor/github.com/opentracing/opentracing-go/.gitignore b/vendor/github.com/opentracing/opentracing-go/.gitignore
deleted file mode 100644
index c57100a59..000000000
--- a/vendor/github.com/opentracing/opentracing-go/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-coverage.txt
diff --git a/vendor/github.com/opentracing/opentracing-go/.travis.yml b/vendor/github.com/opentracing/opentracing-go/.travis.yml
deleted file mode 100644
index b950e4296..000000000
--- a/vendor/github.com/opentracing/opentracing-go/.travis.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-language: go
-
-matrix:
- include:
- - go: "1.13.x"
- - go: "1.14.x"
- - go: "tip"
- env:
- - LINT=true
- - COVERAGE=true
-
-install:
- - if [ "$LINT" == true ]; then go get -u golang.org/x/lint/golint/... ; else echo 'skipping lint'; fi
- - go get -u github.com/stretchr/testify/...
-
-script:
- - make test
- - go build ./...
- - if [ "$LINT" == true ]; then make lint ; else echo 'skipping lint'; fi
- - if [ "$COVERAGE" == true ]; then make cover && bash <(curl -s https://codecov.io/bash) ; else echo 'skipping coverage'; fi
diff --git a/vendor/github.com/opentracing/opentracing-go/CHANGELOG.md b/vendor/github.com/opentracing/opentracing-go/CHANGELOG.md
deleted file mode 100644
index d3bfcf623..000000000
--- a/vendor/github.com/opentracing/opentracing-go/CHANGELOG.md
+++ /dev/null
@@ -1,63 +0,0 @@
-Changes by Version
-==================
-
-
-1.2.0 (2020-07-01)
--------------------
-
-* Restore the ability to reset the current span in context to nil (#231) -- Yuri Shkuro
-* Use error.object per OpenTracing Semantic Conventions (#179) -- Rahman Syed
-* Convert nil pointer log field value to string "nil" (#230) -- Cyril Tovena
-* Add Go module support (#215) -- Zaba505
-* Make SetTag helper types in ext public (#229) -- Blake Edwards
-* Add log/fields helpers for keys from specification (#226) -- Dmitry Monakhov
-* Improve noop impementation (#223) -- chanxuehong
-* Add an extension to Tracer interface for custom go context creation (#220) -- Krzesimir Nowak
-* Fix typo in comments (#222) -- meteorlxy
-* Improve documentation for log.Object() to emphasize the requirement to pass immutable arguments (#219) -- 疯狂的小企鹅
-* [mock] Return ErrInvalidSpanContext if span context is not MockSpanContext (#216) -- Milad Irannejad
-
-
-1.1.0 (2019-03-23)
--------------------
-
-Notable changes:
-- The library is now released under Apache 2.0 license
-- Use Set() instead of Add() in HTTPHeadersCarrier is functionally a breaking change (fixes issue [#159](https://github.com/opentracing/opentracing-go/issues/159))
-- 'golang.org/x/net/context' is replaced with 'context' from the standard library
-
-List of all changes:
-
-- Export StartSpanFromContextWithTracer (#214) <Aaron Delaney>
-- Add IsGlobalTracerRegistered() to indicate if a tracer has been registered (#201) <Mike Goldsmith>
-- Use Set() instead of Add() in HTTPHeadersCarrier (#191) <jeremyxu2010>
-- Update license to Apache 2.0 (#181) <Andrea Kao>
-- Replace 'golang.org/x/net/context' with 'context' (#176) <Tony Ghita>
-- Port of Python opentracing/harness/api_check.py to Go (#146) <chris erway>
-- Fix race condition in MockSpan.Context() (#170) <Brad>
-- Add PeerHostIPv4.SetString() (#155) <NeoCN>
-- Add a Noop log field type to log to allow for optional fields (#150) <Matt Ho>
-
-
-1.0.2 (2017-04-26)
--------------------
-
-- Add more semantic tags (#139) <Rustam Zagirov>
-
-
-1.0.1 (2017-02-06)
--------------------
-
-- Correct spelling in comments <Ben Sigelman>
-- Address race in nextMockID() (#123) <bill fumerola>
-- log: avoid panic marshaling nil error (#131) <Anthony Voutas>
-- Deprecate InitGlobalTracer in favor of SetGlobalTracer (#128) <Yuri Shkuro>
-- Drop Go 1.5 that fails in Travis (#129) <Yuri Shkuro>
-- Add convenience methods Key() and Value() to log.Field <Ben Sigelman>
-- Add convenience methods to log.Field (2 years, 6 months ago) <Radu Berinde>
-
-1.0.0 (2016-09-26)
--------------------
-
-- This release implements OpenTracing Specification 1.0 (https://opentracing.io/spec)
-
diff --git a/vendor/github.com/opentracing/opentracing-go/LICENSE b/vendor/github.com/opentracing/opentracing-go/LICENSE
deleted file mode 100644
index f0027349e..000000000
--- a/vendor/github.com/opentracing/opentracing-go/LICENSE
+++ /dev/null
@@ -1,201 +0,0 @@
- Apache License
- Version 2.0, January 2004
- http://www.apache.org/licenses/
-
- TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
- 1. Definitions.
-
- "License" shall mean the terms and conditions for use, reproduction,
- and distribution as defined by Sections 1 through 9 of this document.
-
- "Licensor" shall mean the copyright owner or entity authorized by
- the copyright owner that is granting the License.
-
- "Legal Entity" shall mean the union of the acting entity and all
- other entities that control, are controlled by, or are under common
- control with that entity. For the purposes of this definition,
- "control" means (i) the power, direct or indirect, to cause the
- direction or management of such entity, whether by contract or
- otherwise, or (ii) ownership of fifty percent (50%) or more of the
- outstanding shares, or (iii) beneficial ownership of such entity.
-
- "You" (or "Your") shall mean an individual or Legal Entity
- exercising permissions granted by this License.
-
- "Source" form shall mean the preferred form for making modifications,
- including but not limited to software source code, documentation
- source, and configuration files.
-
- "Object" form shall mean any form resulting from mechanical
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- not limited to compiled object code, generated documentation,
- and conversions to other media types.
-
- "Work" shall mean the work of authorship, whether in Source or
- Object form, made available under the License, as indicated by a
- copyright notice that is included in or attached to the work
- (an example is provided in the Appendix below).
-
- "Derivative Works" shall mean any work, whether in Source or Object
- form, that is based on (or derived from) the Work and for which the
- editorial revisions, annotations, elaborations, or other modifications
- represent, as a whole, an original work of authorship. For the purposes
- of this License, Derivative Works shall not include works that remain
- separable from, or merely link (or bind by name) to the interfaces of,
- the Work and Derivative Works thereof.
-
- "Contribution" shall mean any work of authorship, including
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- Licensor for the purpose of discussing and improving the Work, but
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- designated in writing by the copyright owner as "Not a Contribution."
-
- "Contributor" shall mean Licensor and any individual or Legal Entity
- on behalf of whom a Contribution has been received by Licensor and
- subsequently incorporated within the Work.
-
- 2. Grant of Copyright License. Subject to the terms and conditions of
- this License, each Contributor hereby grants to You a perpetual,
- worldwide, non-exclusive, no-charge, royalty-free, irrevocable
- copyright license to reproduce, prepare Derivative Works of,
- publicly display, publicly perform, sublicense, and distribute the
- Work and such Derivative Works in Source or Object form.
-
- 3. Grant of Patent License. Subject to the terms and conditions of
- this License, each Contributor hereby grants to You a perpetual,
- worldwide, non-exclusive, no-charge, royalty-free, irrevocable
- (except as stated in this section) patent license to make, have made,
- use, offer to sell, sell, import, and otherwise transfer the Work,
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- Contribution(s) alone or by combination of their Contribution(s)
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- institute patent litigation against any entity (including a
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- granted to You under this License for that Work shall terminate
- as of the date such litigation is filed.
-
- 4. Redistribution. You may reproduce and distribute copies of the
- Work or Derivative Works thereof in any medium, with or without
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- meet the following conditions:
-
- (a) You must give any other recipients of the Work or
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-
- (b) You must cause any modified files to carry prominent notices
- stating that You changed the files; and
-
- (c) You must retain, in the Source form of any Derivative Works
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- excluding those notices that do not pertain to any part of
- the Derivative Works; and
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- (d) If the Work includes a "NOTICE" text file as part of its
- distribution, then any Derivative Works that You distribute must
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- as part of the Derivative Works; within the Source form or
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- within a display generated by the Derivative Works, if and
- wherever such third-party notices normally appear. The contents
- of the NOTICE file are for informational purposes only and
- do not modify the License. You may add Your own attribution
- notices within Derivative Works that You distribute, alongside
- or as an addendum to the NOTICE text from the Work, provided
- that such additional attribution notices cannot be construed
- as modifying the License.
-
- You may add Your own copyright statement to Your modifications and
- may provide additional or different license terms and conditions
- for use, reproduction, or distribution of Your modifications, or
- for any such Derivative Works as a whole, provided Your use,
- reproduction, and distribution of the Work otherwise complies with
- the conditions stated in this License.
-
- 5. Submission of Contributions. Unless You explicitly state otherwise,
- any Contribution intentionally submitted for inclusion in the Work
- by You to the Licensor shall be under the terms and conditions of
- this License, without any additional terms or conditions.
- Notwithstanding the above, nothing herein shall supersede or modify
- the terms of any separate license agreement you may have executed
- with Licensor regarding such Contributions.
-
- 6. Trademarks. This License does not grant permission to use the trade
- names, trademarks, service marks, or product names of the Licensor,
- except as required for reasonable and customary use in describing the
- origin of the Work and reproducing the content of the NOTICE file.
-
- 7. Disclaimer of Warranty. Unless required by applicable law or
- agreed to in writing, Licensor provides the Work (and each
- Contributor provides its Contributions) on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
- implied, including, without limitation, any warranties or conditions
- of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
- PARTICULAR PURPOSE. You are solely responsible for determining the
- appropriateness of using or redistributing the Work and assume any
- risks associated with Your exercise of permissions under this License.
-
- 8. Limitation of Liability. In no event and under no legal theory,
- whether in tort (including negligence), contract, or otherwise,
- unless required by applicable law (such as deliberate and grossly
- negligent acts) or agreed to in writing, shall any Contributor be
- liable to You for damages, including any direct, indirect, special,
- incidental, or consequential damages of any character arising as a
- result of this License or out of the use or inability to use the
- Work (including but not limited to damages for loss of goodwill,
- work stoppage, computer failure or malfunction, or any and all
- other commercial damages or losses), even if such Contributor
- has been advised of the possibility of such damages.
-
- 9. Accepting Warranty or Additional Liability. While redistributing
- the Work or Derivative Works thereof, You may choose to offer,
- and charge a fee for, acceptance of support, warranty, indemnity,
- or other liability obligations and/or rights consistent with this
- License. However, in accepting such obligations, You may act only
- on Your own behalf and on Your sole responsibility, not on behalf
- of any other Contributor, and only if You agree to indemnify,
- defend, and hold each Contributor harmless for any liability
- incurred by, or claims asserted against, such Contributor by reason
- of your accepting any such warranty or additional liability.
-
- END OF TERMS AND CONDITIONS
-
- APPENDIX: How to apply the Apache License to your work.
-
- To apply the Apache License to your work, attach the following
- boilerplate notice, with the fields enclosed by brackets "{}"
- replaced with your own identifying information. (Don't include
- the brackets!) The text should be enclosed in the appropriate
- comment syntax for the file format. We also recommend that a
- file or class name and description of purpose be included on the
- same "printed page" as the copyright notice for easier
- identification within third-party archives.
-
- Copyright 2016 The OpenTracing 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.
diff --git a/vendor/github.com/opentracing/opentracing-go/Makefile b/vendor/github.com/opentracing/opentracing-go/Makefile
deleted file mode 100644
index 62abb63f5..000000000
--- a/vendor/github.com/opentracing/opentracing-go/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-.DEFAULT_GOAL := test-and-lint
-
-.PHONY: test-and-lint
-test-and-lint: test lint
-
-.PHONY: test
-test:
- go test -v -cover -race ./...
-
-.PHONY: cover
-cover:
- go test -v -coverprofile=coverage.txt -covermode=atomic -race ./...
-
-.PHONY: lint
-lint:
- go fmt ./...
- golint ./...
- @# Run again with magic to exit non-zero if golint outputs anything.
- @! (golint ./... | read dummy)
- go vet ./...
diff --git a/vendor/github.com/opentracing/opentracing-go/README.md b/vendor/github.com/opentracing/opentracing-go/README.md
deleted file mode 100644
index 6ef1d7c9d..000000000
--- a/vendor/github.com/opentracing/opentracing-go/README.md
+++ /dev/null
@@ -1,171 +0,0 @@
-[![Gitter chat](http://img.shields.io/badge/gitter-join%20chat%20%E2%86%92-brightgreen.svg)](https://gitter.im/opentracing/public) [![Build Status](https://travis-ci.org/opentracing/opentracing-go.svg?branch=master)](https://travis-ci.org/opentracing/opentracing-go) [![GoDoc](https://godoc.org/github.com/opentracing/opentracing-go?status.svg)](http://godoc.org/github.com/opentracing/opentracing-go)
-[![Sourcegraph Badge](https://sourcegraph.com/github.com/opentracing/opentracing-go/-/badge.svg)](https://sourcegraph.com/github.com/opentracing/opentracing-go?badge)
-
-# OpenTracing API for Go
-
-This package is a Go platform API for OpenTracing.
-
-## Required Reading
-
-In order to understand the Go platform API, one must first be familiar with the
-[OpenTracing project](https://opentracing.io) and
-[terminology](https://opentracing.io/specification/) more specifically.
-
-## API overview for those adding instrumentation
-
-Everyday consumers of this `opentracing` package really only need to worry
-about a couple of key abstractions: the `StartSpan` function, the `Span`
-interface, and binding a `Tracer` at `main()`-time. Here are code snippets
-demonstrating some important use cases.
-
-#### Singleton initialization
-
-The simplest starting point is `./default_tracer.go`. As early as possible, call
-
-```go
- import "github.com/opentracing/opentracing-go"
- import ".../some_tracing_impl"
-
- func main() {
- opentracing.SetGlobalTracer(
- // tracing impl specific:
- some_tracing_impl.New(...),
- )
- ...
- }
-```
-
-#### Non-Singleton initialization
-
-If you prefer direct control to singletons, manage ownership of the
-`opentracing.Tracer` implementation explicitly.
-
-#### Creating a Span given an existing Go `context.Context`
-
-If you use `context.Context` in your application, OpenTracing's Go library will
-happily rely on it for `Span` propagation. To start a new (blocking child)
-`Span`, you can use `StartSpanFromContext`.
-
-```go
- func xyz(ctx context.Context, ...) {
- ...
- span, ctx := opentracing.StartSpanFromContext(ctx, "operation_name")
- defer span.Finish()
- span.LogFields(
- log.String("event", "soft error"),
- log.String("type", "cache timeout"),
- log.Int("waited.millis", 1500))
- ...
- }
-```
-
-#### Starting an empty trace by creating a "root span"
-
-It's always possible to create a "root" `Span` with no parent or other causal
-reference.
-
-```go
- func xyz() {
- ...
- sp := opentracing.StartSpan("operation_name")
- defer sp.Finish()
- ...
- }
-```
-
-#### Creating a (child) Span given an existing (parent) Span
-
-```go
- func xyz(parentSpan opentracing.Span, ...) {
- ...
- sp := opentracing.StartSpan(
- "operation_name",
- opentracing.ChildOf(parentSpan.Context()))
- defer sp.Finish()
- ...
- }
-```
-
-#### Serializing to the wire
-
-```go
- func makeSomeRequest(ctx context.Context) ... {
- if span := opentracing.SpanFromContext(ctx); span != nil {
- httpClient := &http.Client{}
- httpReq, _ := http.NewRequest("GET", "http://myservice/", nil)
-
- // Transmit the span's TraceContext as HTTP headers on our
- // outbound request.
- opentracing.GlobalTracer().Inject(
- span.Context(),
- opentracing.HTTPHeaders,
- opentracing.HTTPHeadersCarrier(httpReq.Header))
-
- resp, err := httpClient.Do(httpReq)
- ...
- }
- ...
- }
-```
-
-#### Deserializing from the wire
-
-```go
- http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
- var serverSpan opentracing.Span
- appSpecificOperationName := ...
- wireContext, err := opentracing.GlobalTracer().Extract(
- opentracing.HTTPHeaders,
- opentracing.HTTPHeadersCarrier(req.Header))
- if err != nil {
- // Optionally record something about err here
- }
-
- // Create the span referring to the RPC client if available.
- // If wireContext == nil, a root span will be created.
- serverSpan = opentracing.StartSpan(
- appSpecificOperationName,
- ext.RPCServerOption(wireContext))
-
- defer serverSpan.Finish()
-
- ctx := opentracing.ContextWithSpan(context.Background(), serverSpan)
- ...
- }
-```
-
-#### Conditionally capture a field using `log.Noop`
-
-In some situations, you may want to dynamically decide whether or not
-to log a field. For example, you may want to capture additional data,
-such as a customer ID, in non-production environments:
-
-```go
- func Customer(order *Order) log.Field {
- if os.Getenv("ENVIRONMENT") == "dev" {
- return log.String("customer", order.Customer.ID)
- }
- return log.Noop()
- }
-```
-
-#### Goroutine-safety
-
-The entire public API is goroutine-safe and does not require external
-synchronization.
-
-## API pointers for those implementing a tracing system
-
-Tracing system implementors may be able to reuse or copy-paste-modify the `basictracer` package, found [here](https://github.com/opentracing/basictracer-go). In particular, see `basictracer.New(...)`.
-
-## API compatibility
-
-For the time being, "mild" backwards-incompatible changes may be made without changing the major version number. As OpenTracing and `opentracing-go` mature, backwards compatibility will become more of a priority.
-
-## Tracer test suite
-
-A test suite is available in the [harness](https://godoc.org/github.com/opentracing/opentracing-go/harness) package that can assist Tracer implementors to assert that their Tracer is working correctly.
-
-## Licensing
-
-[Apache 2.0 License](./LICENSE).
diff --git a/vendor/github.com/opentracing/opentracing-go/ext.go b/vendor/github.com/opentracing/opentracing-go/ext.go
deleted file mode 100644
index e11977ebe..000000000
--- a/vendor/github.com/opentracing/opentracing-go/ext.go
+++ /dev/null
@@ -1,24 +0,0 @@
-package opentracing
-
-import (
- "context"
-)
-
-// TracerContextWithSpanExtension is an extension interface that the
-// implementation of the Tracer interface may want to implement. It
-// allows to have some control over the go context when the
-// ContextWithSpan is invoked.
-//
-// The primary purpose of this extension are adapters from opentracing
-// API to some other tracing API.
-type TracerContextWithSpanExtension interface {
- // ContextWithSpanHook gets called by the ContextWithSpan
- // function, when the Tracer implementation also implements
- // this interface. It allows to put extra information into the
- // context and make it available to the callers of the
- // ContextWithSpan.
- //
- // This hook is invoked before the ContextWithSpan function
- // actually puts the span into the context.
- ContextWithSpanHook(ctx context.Context, span Span) context.Context
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/ext/field.go b/vendor/github.com/opentracing/opentracing-go/ext/field.go
deleted file mode 100644
index 8282bd758..000000000
--- a/vendor/github.com/opentracing/opentracing-go/ext/field.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package ext
-
-import (
- "github.com/opentracing/opentracing-go"
- "github.com/opentracing/opentracing-go/log"
-)
-
-// LogError sets the error=true tag on the Span and logs err as an "error" event.
-func LogError(span opentracing.Span, err error, fields ...log.Field) {
- Error.Set(span, true)
- ef := []log.Field{
- log.Event("error"),
- log.Error(err),
- }
- ef = append(ef, fields...)
- span.LogFields(ef...)
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/ext/tags.go b/vendor/github.com/opentracing/opentracing-go/ext/tags.go
deleted file mode 100644
index a414b5951..000000000
--- a/vendor/github.com/opentracing/opentracing-go/ext/tags.go
+++ /dev/null
@@ -1,215 +0,0 @@
-package ext
-
-import "github.com/opentracing/opentracing-go"
-
-// These constants define common tag names recommended for better portability across
-// tracing systems and languages/platforms.
-//
-// The tag names are defined as typed strings, so that in addition to the usual use
-//
-// span.setTag(TagName, value)
-//
-// they also support value type validation via this additional syntax:
-//
-// TagName.Set(span, value)
-//
-var (
- //////////////////////////////////////////////////////////////////////
- // SpanKind (client/server or producer/consumer)
- //////////////////////////////////////////////////////////////////////
-
- // SpanKind hints at relationship between spans, e.g. client/server
- SpanKind = spanKindTagName("span.kind")
-
- // SpanKindRPCClient marks a span representing the client-side of an RPC
- // or other remote call
- SpanKindRPCClientEnum = SpanKindEnum("client")
- SpanKindRPCClient = opentracing.Tag{Key: string(SpanKind), Value: SpanKindRPCClientEnum}
-
- // SpanKindRPCServer marks a span representing the server-side of an RPC
- // or other remote call
- SpanKindRPCServerEnum = SpanKindEnum("server")
- SpanKindRPCServer = opentracing.Tag{Key: string(SpanKind), Value: SpanKindRPCServerEnum}
-
- // SpanKindProducer marks a span representing the producer-side of a
- // message bus
- SpanKindProducerEnum = SpanKindEnum("producer")
- SpanKindProducer = opentracing.Tag{Key: string(SpanKind), Value: SpanKindProducerEnum}
-
- // SpanKindConsumer marks a span representing the consumer-side of a
- // message bus
- SpanKindConsumerEnum = SpanKindEnum("consumer")
- SpanKindConsumer = opentracing.Tag{Key: string(SpanKind), Value: SpanKindConsumerEnum}
-
- //////////////////////////////////////////////////////////////////////
- // Component name
- //////////////////////////////////////////////////////////////////////
-
- // Component is a low-cardinality identifier of the module, library,
- // or package that is generating a span.
- Component = StringTagName("component")
-
- //////////////////////////////////////////////////////////////////////
- // Sampling hint
- //////////////////////////////////////////////////////////////////////
-
- // SamplingPriority determines the priority of sampling this Span.
- SamplingPriority = Uint16TagName("sampling.priority")
-
- //////////////////////////////////////////////////////////////////////
- // Peer tags. These tags can be emitted by either client-side or
- // server-side to describe the other side/service in a peer-to-peer
- // communications, like an RPC call.
- //////////////////////////////////////////////////////////////////////
-
- // PeerService records the service name of the peer.
- PeerService = StringTagName("peer.service")
-
- // PeerAddress records the address name of the peer. This may be a "ip:port",
- // a bare "hostname", a FQDN or even a database DSN substring
- // like "mysql://username@127.0.0.1:3306/dbname"
- PeerAddress = StringTagName("peer.address")
-
- // PeerHostname records the host name of the peer
- PeerHostname = StringTagName("peer.hostname")
-
- // PeerHostIPv4 records IP v4 host address of the peer
- PeerHostIPv4 = IPv4TagName("peer.ipv4")
-
- // PeerHostIPv6 records IP v6 host address of the peer
- PeerHostIPv6 = StringTagName("peer.ipv6")
-
- // PeerPort records port number of the peer
- PeerPort = Uint16TagName("peer.port")
-
- //////////////////////////////////////////////////////////////////////
- // HTTP Tags
- //////////////////////////////////////////////////////////////////////
-
- // HTTPUrl should be the URL of the request being handled in this segment
- // of the trace, in standard URI format. The protocol is optional.
- HTTPUrl = StringTagName("http.url")
-
- // HTTPMethod is the HTTP method of the request, and is case-insensitive.
- HTTPMethod = StringTagName("http.method")
-
- // HTTPStatusCode is the numeric HTTP status code (200, 404, etc) of the
- // HTTP response.
- HTTPStatusCode = Uint16TagName("http.status_code")
-
- //////////////////////////////////////////////////////////////////////
- // DB Tags
- //////////////////////////////////////////////////////////////////////
-
- // DBInstance is database instance name.
- DBInstance = StringTagName("db.instance")
-
- // DBStatement is a database statement for the given database type.
- // It can be a query or a prepared statement (i.e., before substitution).
- DBStatement = StringTagName("db.statement")
-
- // DBType is a database type. For any SQL database, "sql".
- // For others, the lower-case database category, e.g. "redis"
- DBType = StringTagName("db.type")
-
- // DBUser is a username for accessing database.
- DBUser = StringTagName("db.user")
-
- //////////////////////////////////////////////////////////////////////
- // Message Bus Tag
- //////////////////////////////////////////////////////////////////////
-
- // MessageBusDestination is an address at which messages can be exchanged
- MessageBusDestination = StringTagName("message_bus.destination")
-
- //////////////////////////////////////////////////////////////////////
- // Error Tag
- //////////////////////////////////////////////////////////////////////
-
- // Error indicates that operation represented by the span resulted in an error.
- Error = BoolTagName("error")
-)
-
-// ---
-
-// SpanKindEnum represents common span types
-type SpanKindEnum string
-
-type spanKindTagName string
-
-// Set adds a string tag to the `span`
-func (tag spanKindTagName) Set(span opentracing.Span, value SpanKindEnum) {
- span.SetTag(string(tag), value)
-}
-
-type rpcServerOption struct {
- clientContext opentracing.SpanContext
-}
-
-func (r rpcServerOption) Apply(o *opentracing.StartSpanOptions) {
- if r.clientContext != nil {
- opentracing.ChildOf(r.clientContext).Apply(o)
- }
- SpanKindRPCServer.Apply(o)
-}
-
-// RPCServerOption returns a StartSpanOption appropriate for an RPC server span
-// with `client` representing the metadata for the remote peer Span if available.
-// In case client == nil, due to the client not being instrumented, this RPC
-// server span will be a root span.
-func RPCServerOption(client opentracing.SpanContext) opentracing.StartSpanOption {
- return rpcServerOption{client}
-}
-
-// ---
-
-// StringTagName is a common tag name to be set to a string value
-type StringTagName string
-
-// Set adds a string tag to the `span`
-func (tag StringTagName) Set(span opentracing.Span, value string) {
- span.SetTag(string(tag), value)
-}
-
-// ---
-
-// Uint32TagName is a common tag name to be set to a uint32 value
-type Uint32TagName string
-
-// Set adds a uint32 tag to the `span`
-func (tag Uint32TagName) Set(span opentracing.Span, value uint32) {
- span.SetTag(string(tag), value)
-}
-
-// ---
-
-// Uint16TagName is a common tag name to be set to a uint16 value
-type Uint16TagName string
-
-// Set adds a uint16 tag to the `span`
-func (tag Uint16TagName) Set(span opentracing.Span, value uint16) {
- span.SetTag(string(tag), value)
-}
-
-// ---
-
-// BoolTagName is a common tag name to be set to a bool value
-type BoolTagName string
-
-// Set adds a bool tag to the `span`
-func (tag BoolTagName) Set(span opentracing.Span, value bool) {
- span.SetTag(string(tag), value)
-}
-
-// IPv4TagName is a common tag name to be set to an ipv4 value
-type IPv4TagName string
-
-// Set adds IP v4 host address of the peer as an uint32 value to the `span`, keep this for backward and zipkin compatibility
-func (tag IPv4TagName) Set(span opentracing.Span, value uint32) {
- span.SetTag(string(tag), value)
-}
-
-// SetString records IP v4 host address of the peer as a .-separated tuple to the `span`. E.g., "127.0.0.1"
-func (tag IPv4TagName) SetString(span opentracing.Span, value string) {
- span.SetTag(string(tag), value)
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/globaltracer.go b/vendor/github.com/opentracing/opentracing-go/globaltracer.go
deleted file mode 100644
index 4f7066a92..000000000
--- a/vendor/github.com/opentracing/opentracing-go/globaltracer.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package opentracing
-
-type registeredTracer struct {
- tracer Tracer
- isRegistered bool
-}
-
-var (
- globalTracer = registeredTracer{NoopTracer{}, false}
-)
-
-// SetGlobalTracer sets the [singleton] opentracing.Tracer returned by
-// GlobalTracer(). Those who use GlobalTracer (rather than directly manage an
-// opentracing.Tracer instance) should call SetGlobalTracer as early as
-// possible in main(), prior to calling the `StartSpan` global func below.
-// Prior to calling `SetGlobalTracer`, any Spans started via the `StartSpan`
-// (etc) globals are noops.
-func SetGlobalTracer(tracer Tracer) {
- globalTracer = registeredTracer{tracer, true}
-}
-
-// GlobalTracer returns the global singleton `Tracer` implementation.
-// Before `SetGlobalTracer()` is called, the `GlobalTracer()` is a noop
-// implementation that drops all data handed to it.
-func GlobalTracer() Tracer {
- return globalTracer.tracer
-}
-
-// StartSpan defers to `Tracer.StartSpan`. See `GlobalTracer()`.
-func StartSpan(operationName string, opts ...StartSpanOption) Span {
- return globalTracer.tracer.StartSpan(operationName, opts...)
-}
-
-// InitGlobalTracer is deprecated. Please use SetGlobalTracer.
-func InitGlobalTracer(tracer Tracer) {
- SetGlobalTracer(tracer)
-}
-
-// IsGlobalTracerRegistered returns a `bool` to indicate if a tracer has been globally registered
-func IsGlobalTracerRegistered() bool {
- return globalTracer.isRegistered
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/go.mod b/vendor/github.com/opentracing/opentracing-go/go.mod
deleted file mode 100644
index bf48bb5d7..000000000
--- a/vendor/github.com/opentracing/opentracing-go/go.mod
+++ /dev/null
@@ -1,5 +0,0 @@
-module github.com/opentracing/opentracing-go
-
-go 1.14
-
-require github.com/stretchr/testify v1.3.0
diff --git a/vendor/github.com/opentracing/opentracing-go/go.sum b/vendor/github.com/opentracing/opentracing-go/go.sum
deleted file mode 100644
index 4347755af..000000000
--- a/vendor/github.com/opentracing/opentracing-go/go.sum
+++ /dev/null
@@ -1,7 +0,0 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
diff --git a/vendor/github.com/opentracing/opentracing-go/gocontext.go b/vendor/github.com/opentracing/opentracing-go/gocontext.go
deleted file mode 100644
index 1831bc9b2..000000000
--- a/vendor/github.com/opentracing/opentracing-go/gocontext.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package opentracing
-
-import "context"
-
-type contextKey struct{}
-
-var activeSpanKey = contextKey{}
-
-// ContextWithSpan returns a new `context.Context` that holds a reference to
-// the span. If span is nil, a new context without an active span is returned.
-func ContextWithSpan(ctx context.Context, span Span) context.Context {
- if span != nil {
- if tracerWithHook, ok := span.Tracer().(TracerContextWithSpanExtension); ok {
- ctx = tracerWithHook.ContextWithSpanHook(ctx, span)
- }
- }
- return context.WithValue(ctx, activeSpanKey, span)
-}
-
-// SpanFromContext returns the `Span` previously associated with `ctx`, or
-// `nil` if no such `Span` could be found.
-//
-// NOTE: context.Context != SpanContext: the former is Go's intra-process
-// context propagation mechanism, and the latter houses OpenTracing's per-Span
-// identity and baggage information.
-func SpanFromContext(ctx context.Context) Span {
- val := ctx.Value(activeSpanKey)
- if sp, ok := val.(Span); ok {
- return sp
- }
- return nil
-}
-
-// StartSpanFromContext starts and returns a Span with `operationName`, using
-// any Span found within `ctx` as a ChildOfRef. If no such parent could be
-// found, StartSpanFromContext creates a root (parentless) Span.
-//
-// The second return value is a context.Context object built around the
-// returned Span.
-//
-// Example usage:
-//
-// SomeFunction(ctx context.Context, ...) {
-// sp, ctx := opentracing.StartSpanFromContext(ctx, "SomeFunction")
-// defer sp.Finish()
-// ...
-// }
-func StartSpanFromContext(ctx context.Context, operationName string, opts ...StartSpanOption) (Span, context.Context) {
- return StartSpanFromContextWithTracer(ctx, GlobalTracer(), operationName, opts...)
-}
-
-// StartSpanFromContextWithTracer starts and returns a span with `operationName`
-// using a span found within the context as a ChildOfRef. If that doesn't exist
-// it creates a root span. It also returns a context.Context object built
-// around the returned span.
-//
-// It's behavior is identical to StartSpanFromContext except that it takes an explicit
-// tracer as opposed to using the global tracer.
-func StartSpanFromContextWithTracer(ctx context.Context, tracer Tracer, operationName string, opts ...StartSpanOption) (Span, context.Context) {
- if parentSpan := SpanFromContext(ctx); parentSpan != nil {
- opts = append(opts, ChildOf(parentSpan.Context()))
- }
- span := tracer.StartSpan(operationName, opts...)
- return span, ContextWithSpan(ctx, span)
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/log/field.go b/vendor/github.com/opentracing/opentracing-go/log/field.go
deleted file mode 100644
index f222ded79..000000000
--- a/vendor/github.com/opentracing/opentracing-go/log/field.go
+++ /dev/null
@@ -1,282 +0,0 @@
-package log
-
-import (
- "fmt"
- "math"
-)
-
-type fieldType int
-
-const (
- stringType fieldType = iota
- boolType
- intType
- int32Type
- uint32Type
- int64Type
- uint64Type
- float32Type
- float64Type
- errorType
- objectType
- lazyLoggerType
- noopType
-)
-
-// Field instances are constructed via LogBool, LogString, and so on.
-// Tracing implementations may then handle them via the Field.Marshal
-// method.
-//
-// "heavily influenced by" (i.e., partially stolen from)
-// https://github.com/uber-go/zap
-type Field struct {
- key string
- fieldType fieldType
- numericVal int64
- stringVal string
- interfaceVal interface{}
-}
-
-// String adds a string-valued key:value pair to a Span.LogFields() record
-func String(key, val string) Field {
- return Field{
- key: key,
- fieldType: stringType,
- stringVal: val,
- }
-}
-
-// Bool adds a bool-valued key:value pair to a Span.LogFields() record
-func Bool(key string, val bool) Field {
- var numericVal int64
- if val {
- numericVal = 1
- }
- return Field{
- key: key,
- fieldType: boolType,
- numericVal: numericVal,
- }
-}
-
-// Int adds an int-valued key:value pair to a Span.LogFields() record
-func Int(key string, val int) Field {
- return Field{
- key: key,
- fieldType: intType,
- numericVal: int64(val),
- }
-}
-
-// Int32 adds an int32-valued key:value pair to a Span.LogFields() record
-func Int32(key string, val int32) Field {
- return Field{
- key: key,
- fieldType: int32Type,
- numericVal: int64(val),
- }
-}
-
-// Int64 adds an int64-valued key:value pair to a Span.LogFields() record
-func Int64(key string, val int64) Field {
- return Field{
- key: key,
- fieldType: int64Type,
- numericVal: val,
- }
-}
-
-// Uint32 adds a uint32-valued key:value pair to a Span.LogFields() record
-func Uint32(key string, val uint32) Field {
- return Field{
- key: key,
- fieldType: uint32Type,
- numericVal: int64(val),
- }
-}
-
-// Uint64 adds a uint64-valued key:value pair to a Span.LogFields() record
-func Uint64(key string, val uint64) Field {
- return Field{
- key: key,
- fieldType: uint64Type,
- numericVal: int64(val),
- }
-}
-
-// Float32 adds a float32-valued key:value pair to a Span.LogFields() record
-func Float32(key string, val float32) Field {
- return Field{
- key: key,
- fieldType: float32Type,
- numericVal: int64(math.Float32bits(val)),
- }
-}
-
-// Float64 adds a float64-valued key:value pair to a Span.LogFields() record
-func Float64(key string, val float64) Field {
- return Field{
- key: key,
- fieldType: float64Type,
- numericVal: int64(math.Float64bits(val)),
- }
-}
-
-// Error adds an error with the key "error.object" to a Span.LogFields() record
-func Error(err error) Field {
- return Field{
- key: "error.object",
- fieldType: errorType,
- interfaceVal: err,
- }
-}
-
-// Object adds an object-valued key:value pair to a Span.LogFields() record
-// Please pass in an immutable object, otherwise there may be concurrency issues.
-// Such as passing in the map, log.Object may result in "fatal error: concurrent map iteration and map write".
-// Because span is sent asynchronously, it is possible that this map will also be modified.
-func Object(key string, obj interface{}) Field {
- return Field{
- key: key,
- fieldType: objectType,
- interfaceVal: obj,
- }
-}
-
-// Event creates a string-valued Field for span logs with key="event" and value=val.
-func Event(val string) Field {
- return String("event", val)
-}
-
-// Message creates a string-valued Field for span logs with key="message" and value=val.
-func Message(val string) Field {
- return String("message", val)
-}
-
-// LazyLogger allows for user-defined, late-bound logging of arbitrary data
-type LazyLogger func(fv Encoder)
-
-// Lazy adds a LazyLogger to a Span.LogFields() record; the tracing
-// implementation will call the LazyLogger function at an indefinite time in
-// the future (after Lazy() returns).
-func Lazy(ll LazyLogger) Field {
- return Field{
- fieldType: lazyLoggerType,
- interfaceVal: ll,
- }
-}
-
-// Noop creates a no-op log field that should be ignored by the tracer.
-// It can be used to capture optional fields, for example those that should
-// only be logged in non-production environment:
-//
-// func customerField(order *Order) log.Field {
-// if os.Getenv("ENVIRONMENT") == "dev" {
-// return log.String("customer", order.Customer.ID)
-// }
-// return log.Noop()
-// }
-//
-// span.LogFields(log.String("event", "purchase"), customerField(order))
-//
-func Noop() Field {
- return Field{
- fieldType: noopType,
- }
-}
-
-// Encoder allows access to the contents of a Field (via a call to
-// Field.Marshal).
-//
-// Tracer implementations typically provide an implementation of Encoder;
-// OpenTracing callers typically do not need to concern themselves with it.
-type Encoder interface {
- EmitString(key, value string)
- EmitBool(key string, value bool)
- EmitInt(key string, value int)
- EmitInt32(key string, value int32)
- EmitInt64(key string, value int64)
- EmitUint32(key string, value uint32)
- EmitUint64(key string, value uint64)
- EmitFloat32(key string, value float32)
- EmitFloat64(key string, value float64)
- EmitObject(key string, value interface{})
- EmitLazyLogger(value LazyLogger)
-}
-
-// Marshal passes a Field instance through to the appropriate
-// field-type-specific method of an Encoder.
-func (lf Field) Marshal(visitor Encoder) {
- switch lf.fieldType {
- case stringType:
- visitor.EmitString(lf.key, lf.stringVal)
- case boolType:
- visitor.EmitBool(lf.key, lf.numericVal != 0)
- case intType:
- visitor.EmitInt(lf.key, int(lf.numericVal))
- case int32Type:
- visitor.EmitInt32(lf.key, int32(lf.numericVal))
- case int64Type:
- visitor.EmitInt64(lf.key, int64(lf.numericVal))
- case uint32Type:
- visitor.EmitUint32(lf.key, uint32(lf.numericVal))
- case uint64Type:
- visitor.EmitUint64(lf.key, uint64(lf.numericVal))
- case float32Type:
- visitor.EmitFloat32(lf.key, math.Float32frombits(uint32(lf.numericVal)))
- case float64Type:
- visitor.EmitFloat64(lf.key, math.Float64frombits(uint64(lf.numericVal)))
- case errorType:
- if err, ok := lf.interfaceVal.(error); ok {
- visitor.EmitString(lf.key, err.Error())
- } else {
- visitor.EmitString(lf.key, "<nil>")
- }
- case objectType:
- visitor.EmitObject(lf.key, lf.interfaceVal)
- case lazyLoggerType:
- visitor.EmitLazyLogger(lf.interfaceVal.(LazyLogger))
- case noopType:
- // intentionally left blank
- }
-}
-
-// Key returns the field's key.
-func (lf Field) Key() string {
- return lf.key
-}
-
-// Value returns the field's value as interface{}.
-func (lf Field) Value() interface{} {
- switch lf.fieldType {
- case stringType:
- return lf.stringVal
- case boolType:
- return lf.numericVal != 0
- case intType:
- return int(lf.numericVal)
- case int32Type:
- return int32(lf.numericVal)
- case int64Type:
- return int64(lf.numericVal)
- case uint32Type:
- return uint32(lf.numericVal)
- case uint64Type:
- return uint64(lf.numericVal)
- case float32Type:
- return math.Float32frombits(uint32(lf.numericVal))
- case float64Type:
- return math.Float64frombits(uint64(lf.numericVal))
- case errorType, objectType, lazyLoggerType:
- return lf.interfaceVal
- case noopType:
- return nil
- default:
- return nil
- }
-}
-
-// String returns a string representation of the key and value.
-func (lf Field) String() string {
- return fmt.Sprint(lf.key, ":", lf.Value())
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/log/util.go b/vendor/github.com/opentracing/opentracing-go/log/util.go
deleted file mode 100644
index d57e28aa5..000000000
--- a/vendor/github.com/opentracing/opentracing-go/log/util.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package log
-
-import (
- "fmt"
- "reflect"
-)
-
-// InterleavedKVToFields converts keyValues a la Span.LogKV() to a Field slice
-// a la Span.LogFields().
-func InterleavedKVToFields(keyValues ...interface{}) ([]Field, error) {
- if len(keyValues)%2 != 0 {
- return nil, fmt.Errorf("non-even keyValues len: %d", len(keyValues))
- }
- fields := make([]Field, len(keyValues)/2)
- for i := 0; i*2 < len(keyValues); i++ {
- key, ok := keyValues[i*2].(string)
- if !ok {
- return nil, fmt.Errorf(
- "non-string key (pair #%d): %T",
- i, keyValues[i*2])
- }
- switch typedVal := keyValues[i*2+1].(type) {
- case bool:
- fields[i] = Bool(key, typedVal)
- case string:
- fields[i] = String(key, typedVal)
- case int:
- fields[i] = Int(key, typedVal)
- case int8:
- fields[i] = Int32(key, int32(typedVal))
- case int16:
- fields[i] = Int32(key, int32(typedVal))
- case int32:
- fields[i] = Int32(key, typedVal)
- case int64:
- fields[i] = Int64(key, typedVal)
- case uint:
- fields[i] = Uint64(key, uint64(typedVal))
- case uint64:
- fields[i] = Uint64(key, typedVal)
- case uint8:
- fields[i] = Uint32(key, uint32(typedVal))
- case uint16:
- fields[i] = Uint32(key, uint32(typedVal))
- case uint32:
- fields[i] = Uint32(key, typedVal)
- case float32:
- fields[i] = Float32(key, typedVal)
- case float64:
- fields[i] = Float64(key, typedVal)
- default:
- if typedVal == nil || (reflect.ValueOf(typedVal).Kind() == reflect.Ptr && reflect.ValueOf(typedVal).IsNil()) {
- fields[i] = String(key, "nil")
- continue
- }
- // When in doubt, coerce to a string
- fields[i] = String(key, fmt.Sprint(typedVal))
- }
- }
- return fields, nil
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/noop.go b/vendor/github.com/opentracing/opentracing-go/noop.go
deleted file mode 100644
index f9b680a21..000000000
--- a/vendor/github.com/opentracing/opentracing-go/noop.go
+++ /dev/null
@@ -1,64 +0,0 @@
-package opentracing
-
-import "github.com/opentracing/opentracing-go/log"
-
-// A NoopTracer is a trivial, minimum overhead implementation of Tracer
-// for which all operations are no-ops.
-//
-// The primary use of this implementation is in libraries, such as RPC
-// frameworks, that make tracing an optional feature controlled by the
-// end user. A no-op implementation allows said libraries to use it
-// as the default Tracer and to write instrumentation that does
-// not need to keep checking if the tracer instance is nil.
-//
-// For the same reason, the NoopTracer is the default "global" tracer
-// (see GlobalTracer and SetGlobalTracer functions).
-//
-// WARNING: NoopTracer does not support baggage propagation.
-type NoopTracer struct{}
-
-type noopSpan struct{}
-type noopSpanContext struct{}
-
-var (
- defaultNoopSpanContext SpanContext = noopSpanContext{}
- defaultNoopSpan Span = noopSpan{}
- defaultNoopTracer Tracer = NoopTracer{}
-)
-
-const (
- emptyString = ""
-)
-
-// noopSpanContext:
-func (n noopSpanContext) ForeachBaggageItem(handler func(k, v string) bool) {}
-
-// noopSpan:
-func (n noopSpan) Context() SpanContext { return defaultNoopSpanContext }
-func (n noopSpan) SetBaggageItem(key, val string) Span { return n }
-func (n noopSpan) BaggageItem(key string) string { return emptyString }
-func (n noopSpan) SetTag(key string, value interface{}) Span { return n }
-func (n noopSpan) LogFields(fields ...log.Field) {}
-func (n noopSpan) LogKV(keyVals ...interface{}) {}
-func (n noopSpan) Finish() {}
-func (n noopSpan) FinishWithOptions(opts FinishOptions) {}
-func (n noopSpan) SetOperationName(operationName string) Span { return n }
-func (n noopSpan) Tracer() Tracer { return defaultNoopTracer }
-func (n noopSpan) LogEvent(event string) {}
-func (n noopSpan) LogEventWithPayload(event string, payload interface{}) {}
-func (n noopSpan) Log(data LogData) {}
-
-// StartSpan belongs to the Tracer interface.
-func (n NoopTracer) StartSpan(operationName string, opts ...StartSpanOption) Span {
- return defaultNoopSpan
-}
-
-// Inject belongs to the Tracer interface.
-func (n NoopTracer) Inject(sp SpanContext, format interface{}, carrier interface{}) error {
- return nil
-}
-
-// Extract belongs to the Tracer interface.
-func (n NoopTracer) Extract(format interface{}, carrier interface{}) (SpanContext, error) {
- return nil, ErrSpanContextNotFound
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/propagation.go b/vendor/github.com/opentracing/opentracing-go/propagation.go
deleted file mode 100644
index b0c275eb0..000000000
--- a/vendor/github.com/opentracing/opentracing-go/propagation.go
+++ /dev/null
@@ -1,176 +0,0 @@
-package opentracing
-
-import (
- "errors"
- "net/http"
-)
-
-///////////////////////////////////////////////////////////////////////////////
-// CORE PROPAGATION INTERFACES:
-///////////////////////////////////////////////////////////////////////////////
-
-var (
- // ErrUnsupportedFormat occurs when the `format` passed to Tracer.Inject() or
- // Tracer.Extract() is not recognized by the Tracer implementation.
- ErrUnsupportedFormat = errors.New("opentracing: Unknown or unsupported Inject/Extract format")
-
- // ErrSpanContextNotFound occurs when the `carrier` passed to
- // Tracer.Extract() is valid and uncorrupted but has insufficient
- // information to extract a SpanContext.
- ErrSpanContextNotFound = errors.New("opentracing: SpanContext not found in Extract carrier")
-
- // ErrInvalidSpanContext errors occur when Tracer.Inject() is asked to
- // operate on a SpanContext which it is not prepared to handle (for
- // example, since it was created by a different tracer implementation).
- ErrInvalidSpanContext = errors.New("opentracing: SpanContext type incompatible with tracer")
-
- // ErrInvalidCarrier errors occur when Tracer.Inject() or Tracer.Extract()
- // implementations expect a different type of `carrier` than they are
- // given.
- ErrInvalidCarrier = errors.New("opentracing: Invalid Inject/Extract carrier")
-
- // ErrSpanContextCorrupted occurs when the `carrier` passed to
- // Tracer.Extract() is of the expected type but is corrupted.
- ErrSpanContextCorrupted = errors.New("opentracing: SpanContext data corrupted in Extract carrier")
-)
-
-///////////////////////////////////////////////////////////////////////////////
-// BUILTIN PROPAGATION FORMATS:
-///////////////////////////////////////////////////////////////////////////////
-
-// BuiltinFormat is used to demarcate the values within package `opentracing`
-// that are intended for use with the Tracer.Inject() and Tracer.Extract()
-// methods.
-type BuiltinFormat byte
-
-const (
- // Binary represents SpanContexts as opaque binary data.
- //
- // For Tracer.Inject(): the carrier must be an `io.Writer`.
- //
- // For Tracer.Extract(): the carrier must be an `io.Reader`.
- Binary BuiltinFormat = iota
-
- // TextMap represents SpanContexts as key:value string pairs.
- //
- // Unlike HTTPHeaders, the TextMap format does not restrict the key or
- // value character sets in any way.
- //
- // For Tracer.Inject(): the carrier must be a `TextMapWriter`.
- //
- // For Tracer.Extract(): the carrier must be a `TextMapReader`.
- TextMap
-
- // HTTPHeaders represents SpanContexts as HTTP header string pairs.
- //
- // Unlike TextMap, the HTTPHeaders format requires that the keys and values
- // be valid as HTTP headers as-is (i.e., character casing may be unstable
- // and special characters are disallowed in keys, values should be
- // URL-escaped, etc).
- //
- // For Tracer.Inject(): the carrier must be a `TextMapWriter`.
- //
- // For Tracer.Extract(): the carrier must be a `TextMapReader`.
- //
- // See HTTPHeadersCarrier for an implementation of both TextMapWriter
- // and TextMapReader that defers to an http.Header instance for storage.
- // For example, Inject():
- //
- // carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
- // err := span.Tracer().Inject(
- // span.Context(), opentracing.HTTPHeaders, carrier)
- //
- // Or Extract():
- //
- // carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
- // clientContext, err := tracer.Extract(
- // opentracing.HTTPHeaders, carrier)
- //
- HTTPHeaders
-)
-
-// TextMapWriter is the Inject() carrier for the TextMap builtin format. With
-// it, the caller can encode a SpanContext for propagation as entries in a map
-// of unicode strings.
-type TextMapWriter interface {
- // Set a key:value pair to the carrier. Multiple calls to Set() for the
- // same key leads to undefined behavior.
- //
- // NOTE: The backing store for the TextMapWriter may contain data unrelated
- // to SpanContext. As such, Inject() and Extract() implementations that
- // call the TextMapWriter and TextMapReader interfaces must agree on a
- // prefix or other convention to distinguish their own key:value pairs.
- Set(key, val string)
-}
-
-// TextMapReader is the Extract() carrier for the TextMap builtin format. With it,
-// the caller can decode a propagated SpanContext as entries in a map of
-// unicode strings.
-type TextMapReader interface {
- // ForeachKey returns TextMap contents via repeated calls to the `handler`
- // function. If any call to `handler` returns a non-nil error, ForeachKey
- // terminates and returns that error.
- //
- // NOTE: The backing store for the TextMapReader may contain data unrelated
- // to SpanContext. As such, Inject() and Extract() implementations that
- // call the TextMapWriter and TextMapReader interfaces must agree on a
- // prefix or other convention to distinguish their own key:value pairs.
- //
- // The "foreach" callback pattern reduces unnecessary copying in some cases
- // and also allows implementations to hold locks while the map is read.
- ForeachKey(handler func(key, val string) error) error
-}
-
-// TextMapCarrier allows the use of regular map[string]string
-// as both TextMapWriter and TextMapReader.
-type TextMapCarrier map[string]string
-
-// ForeachKey conforms to the TextMapReader interface.
-func (c TextMapCarrier) ForeachKey(handler func(key, val string) error) error {
- for k, v := range c {
- if err := handler(k, v); err != nil {
- return err
- }
- }
- return nil
-}
-
-// Set implements Set() of opentracing.TextMapWriter
-func (c TextMapCarrier) Set(key, val string) {
- c[key] = val
-}
-
-// HTTPHeadersCarrier satisfies both TextMapWriter and TextMapReader.
-//
-// Example usage for server side:
-//
-// carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
-// clientContext, err := tracer.Extract(opentracing.HTTPHeaders, carrier)
-//
-// Example usage for client side:
-//
-// carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
-// err := tracer.Inject(
-// span.Context(),
-// opentracing.HTTPHeaders,
-// carrier)
-//
-type HTTPHeadersCarrier http.Header
-
-// Set conforms to the TextMapWriter interface.
-func (c HTTPHeadersCarrier) Set(key, val string) {
- h := http.Header(c)
- h.Set(key, val)
-}
-
-// ForeachKey conforms to the TextMapReader interface.
-func (c HTTPHeadersCarrier) ForeachKey(handler func(key, val string) error) error {
- for k, vals := range c {
- for _, v := range vals {
- if err := handler(k, v); err != nil {
- return err
- }
- }
- }
- return nil
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/span.go b/vendor/github.com/opentracing/opentracing-go/span.go
deleted file mode 100644
index 0d3fb5341..000000000
--- a/vendor/github.com/opentracing/opentracing-go/span.go
+++ /dev/null
@@ -1,189 +0,0 @@
-package opentracing
-
-import (
- "time"
-
- "github.com/opentracing/opentracing-go/log"
-)
-
-// SpanContext represents Span state that must propagate to descendant Spans and across process
-// boundaries (e.g., a <trace_id, span_id, sampled> tuple).
-type SpanContext interface {
- // ForeachBaggageItem grants access to all baggage items stored in the
- // SpanContext.
- // The handler function will be called for each baggage key/value pair.
- // The ordering of items is not guaranteed.
- //
- // The bool return value indicates if the handler wants to continue iterating
- // through the rest of the baggage items; for example if the handler is trying to
- // find some baggage item by pattern matching the name, it can return false
- // as soon as the item is found to stop further iterations.
- ForeachBaggageItem(handler func(k, v string) bool)
-}
-
-// Span represents an active, un-finished span in the OpenTracing system.
-//
-// Spans are created by the Tracer interface.
-type Span interface {
- // Sets the end timestamp and finalizes Span state.
- //
- // With the exception of calls to Context() (which are always allowed),
- // Finish() must be the last call made to any span instance, and to do
- // otherwise leads to undefined behavior.
- Finish()
- // FinishWithOptions is like Finish() but with explicit control over
- // timestamps and log data.
- FinishWithOptions(opts FinishOptions)
-
- // Context() yields the SpanContext for this Span. Note that the return
- // value of Context() is still valid after a call to Span.Finish(), as is
- // a call to Span.Context() after a call to Span.Finish().
- Context() SpanContext
-
- // Sets or changes the operation name.
- //
- // Returns a reference to this Span for chaining.
- SetOperationName(operationName string) Span
-
- // Adds a tag to the span.
- //
- // If there is a pre-existing tag set for `key`, it is overwritten.
- //
- // Tag values can be numeric types, strings, or bools. The behavior of
- // other tag value types is undefined at the OpenTracing level. If a
- // tracing system does not know how to handle a particular value type, it
- // may ignore the tag, but shall not panic.
- //
- // Returns a reference to this Span for chaining.
- SetTag(key string, value interface{}) Span
-
- // LogFields is an efficient and type-checked way to record key:value
- // logging data about a Span, though the programming interface is a little
- // more verbose than LogKV(). Here's an example:
- //
- // span.LogFields(
- // log.String("event", "soft error"),
- // log.String("type", "cache timeout"),
- // log.Int("waited.millis", 1500))
- //
- // Also see Span.FinishWithOptions() and FinishOptions.BulkLogData.
- LogFields(fields ...log.Field)
-
- // LogKV is a concise, readable way to record key:value logging data about
- // a Span, though unfortunately this also makes it less efficient and less
- // type-safe than LogFields(). Here's an example:
- //
- // span.LogKV(
- // "event", "soft error",
- // "type", "cache timeout",
- // "waited.millis", 1500)
- //
- // For LogKV (as opposed to LogFields()), the parameters must appear as
- // key-value pairs, like
- //
- // span.LogKV(key1, val1, key2, val2, key3, val3, ...)
- //
- // The keys must all be strings. The values may be strings, numeric types,
- // bools, Go error instances, or arbitrary structs.
- //
- // (Note to implementors: consider the log.InterleavedKVToFields() helper)
- LogKV(alternatingKeyValues ...interface{})
-
- // SetBaggageItem sets a key:value pair on this Span and its SpanContext
- // that also propagates to descendants of this Span.
- //
- // SetBaggageItem() enables powerful functionality given a full-stack
- // opentracing integration (e.g., arbitrary application data from a mobile
- // app can make it, transparently, all the way into the depths of a storage
- // system), and with it some powerful costs: use this feature with care.
- //
- // IMPORTANT NOTE #1: SetBaggageItem() will only propagate baggage items to
- // *future* causal descendants of the associated Span.
- //
- // IMPORTANT NOTE #2: Use this thoughtfully and with care. Every key and
- // value is copied into every local *and remote* child of the associated
- // Span, and that can add up to a lot of network and cpu overhead.
- //
- // Returns a reference to this Span for chaining.
- SetBaggageItem(restrictedKey, value string) Span
-
- // Gets the value for a baggage item given its key. Returns the empty string
- // if the value isn't found in this Span.
- BaggageItem(restrictedKey string) string
-
- // Provides access to the Tracer that created this Span.
- Tracer() Tracer
-
- // Deprecated: use LogFields or LogKV
- LogEvent(event string)
- // Deprecated: use LogFields or LogKV
- LogEventWithPayload(event string, payload interface{})
- // Deprecated: use LogFields or LogKV
- Log(data LogData)
-}
-
-// LogRecord is data associated with a single Span log. Every LogRecord
-// instance must specify at least one Field.
-type LogRecord struct {
- Timestamp time.Time
- Fields []log.Field
-}
-
-// FinishOptions allows Span.FinishWithOptions callers to override the finish
-// timestamp and provide log data via a bulk interface.
-type FinishOptions struct {
- // FinishTime overrides the Span's finish time, or implicitly becomes
- // time.Now() if FinishTime.IsZero().
- //
- // FinishTime must resolve to a timestamp that's >= the Span's StartTime
- // (per StartSpanOptions).
- FinishTime time.Time
-
- // LogRecords allows the caller to specify the contents of many LogFields()
- // calls with a single slice. May be nil.
- //
- // None of the LogRecord.Timestamp values may be .IsZero() (i.e., they must
- // be set explicitly). Also, they must be >= the Span's start timestamp and
- // <= the FinishTime (or time.Now() if FinishTime.IsZero()). Otherwise the
- // behavior of FinishWithOptions() is undefined.
- //
- // If specified, the caller hands off ownership of LogRecords at
- // FinishWithOptions() invocation time.
- //
- // If specified, the (deprecated) BulkLogData must be nil or empty.
- LogRecords []LogRecord
-
- // BulkLogData is DEPRECATED.
- BulkLogData []LogData
-}
-
-// LogData is DEPRECATED
-type LogData struct {
- Timestamp time.Time
- Event string
- Payload interface{}
-}
-
-// ToLogRecord converts a deprecated LogData to a non-deprecated LogRecord
-func (ld *LogData) ToLogRecord() LogRecord {
- var literalTimestamp time.Time
- if ld.Timestamp.IsZero() {
- literalTimestamp = time.Now()
- } else {
- literalTimestamp = ld.Timestamp
- }
- rval := LogRecord{
- Timestamp: literalTimestamp,
- }
- if ld.Payload == nil {
- rval.Fields = []log.Field{
- log.String("event", ld.Event),
- }
- } else {
- rval.Fields = []log.Field{
- log.String("event", ld.Event),
- log.Object("payload", ld.Payload),
- }
- }
- return rval
-}
diff --git a/vendor/github.com/opentracing/opentracing-go/tracer.go b/vendor/github.com/opentracing/opentracing-go/tracer.go
deleted file mode 100644
index 715f0cedf..000000000
--- a/vendor/github.com/opentracing/opentracing-go/tracer.go
+++ /dev/null
@@ -1,304 +0,0 @@
-package opentracing
-
-import "time"
-
-// Tracer is a simple, thin interface for Span creation and SpanContext
-// propagation.
-type Tracer interface {
-
- // Create, start, and return a new Span with the given `operationName` and
- // incorporate the given StartSpanOption `opts`. (Note that `opts` borrows
- // from the "functional options" pattern, per
- // http://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis)
- //
- // A Span with no SpanReference options (e.g., opentracing.ChildOf() or
- // opentracing.FollowsFrom()) becomes the root of its own trace.
- //
- // Examples:
- //
- // var tracer opentracing.Tracer = ...
- //
- // // The root-span case:
- // sp := tracer.StartSpan("GetFeed")
- //
- // // The vanilla child span case:
- // sp := tracer.StartSpan(
- // "GetFeed",
- // opentracing.ChildOf(parentSpan.Context()))
- //
- // // All the bells and whistles:
- // sp := tracer.StartSpan(
- // "GetFeed",
- // opentracing.ChildOf(parentSpan.Context()),
- // opentracing.Tag{"user_agent", loggedReq.UserAgent},
- // opentracing.StartTime(loggedReq.Timestamp),
- // )
- //
- StartSpan(operationName string, opts ...StartSpanOption) Span
-
- // Inject() takes the `sm` SpanContext instance and injects it for
- // propagation within `carrier`. The actual type of `carrier` depends on
- // the value of `format`.
- //
- // OpenTracing defines a common set of `format` values (see BuiltinFormat),
- // and each has an expected carrier type.
- //
- // Other packages may declare their own `format` values, much like the keys
- // used by `context.Context` (see https://godoc.org/context#WithValue).
- //
- // Example usage (sans error handling):
- //
- // carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
- // err := tracer.Inject(
- // span.Context(),
- // opentracing.HTTPHeaders,
- // carrier)
- //
- // NOTE: All opentracing.Tracer implementations MUST support all
- // BuiltinFormats.
- //
- // Implementations may return opentracing.ErrUnsupportedFormat if `format`
- // is not supported by (or not known by) the implementation.
- //
- // Implementations may return opentracing.ErrInvalidCarrier or any other
- // implementation-specific error if the format is supported but injection
- // fails anyway.
- //
- // See Tracer.Extract().
- Inject(sm SpanContext, format interface{}, carrier interface{}) error
-
- // Extract() returns a SpanContext instance given `format` and `carrier`.
- //
- // OpenTracing defines a common set of `format` values (see BuiltinFormat),
- // and each has an expected carrier type.
- //
- // Other packages may declare their own `format` values, much like the keys
- // used by `context.Context` (see
- // https://godoc.org/golang.org/x/net/context#WithValue).
- //
- // Example usage (with StartSpan):
- //
- //
- // carrier := opentracing.HTTPHeadersCarrier(httpReq.Header)
- // clientContext, err := tracer.Extract(opentracing.HTTPHeaders, carrier)
- //
- // // ... assuming the ultimate goal here is to resume the trace with a
- // // server-side Span:
- // var serverSpan opentracing.Span
- // if err == nil {
- // span = tracer.StartSpan(
- // rpcMethodName, ext.RPCServerOption(clientContext))
- // } else {
- // span = tracer.StartSpan(rpcMethodName)
- // }
- //
- //
- // NOTE: All opentracing.Tracer implementations MUST support all
- // BuiltinFormats.
- //
- // Return values:
- // - A successful Extract returns a SpanContext instance and a nil error
- // - If there was simply no SpanContext to extract in `carrier`, Extract()
- // returns (nil, opentracing.ErrSpanContextNotFound)
- // - If `format` is unsupported or unrecognized, Extract() returns (nil,
- // opentracing.ErrUnsupportedFormat)
- // - If there are more fundamental problems with the `carrier` object,
- // Extract() may return opentracing.ErrInvalidCarrier,
- // opentracing.ErrSpanContextCorrupted, or implementation-specific
- // errors.
- //
- // See Tracer.Inject().
- Extract(format interface{}, carrier interface{}) (SpanContext, error)
-}
-
-// StartSpanOptions allows Tracer.StartSpan() callers and implementors a
-// mechanism to override the start timestamp, specify Span References, and make
-// a single Tag or multiple Tags available at Span start time.
-//
-// StartSpan() callers should look at the StartSpanOption interface and
-// implementations available in this package.
-//
-// Tracer implementations can convert a slice of `StartSpanOption` instances
-// into a `StartSpanOptions` struct like so:
-//
-// func StartSpan(opName string, opts ...opentracing.StartSpanOption) {
-// sso := opentracing.StartSpanOptions{}
-// for _, o := range opts {
-// o.Apply(&sso)
-// }
-// ...
-// }
-//
-type StartSpanOptions struct {
- // Zero or more causal references to other Spans (via their SpanContext).
- // If empty, start a "root" Span (i.e., start a new trace).
- References []SpanReference
-
- // StartTime overrides the Span's start time, or implicitly becomes
- // time.Now() if StartTime.IsZero().
- StartTime time.Time
-
- // Tags may have zero or more entries; the restrictions on map values are
- // identical to those for Span.SetTag(). May be nil.
- //
- // If specified, the caller hands off ownership of Tags at
- // StartSpan() invocation time.
- Tags map[string]interface{}
-}
-
-// StartSpanOption instances (zero or more) may be passed to Tracer.StartSpan.
-//
-// StartSpanOption borrows from the "functional options" pattern, per
-// http://dave.cheney.net/2014/10/17/functional-options-for-friendly-apis
-type StartSpanOption interface {
- Apply(*StartSpanOptions)
-}
-
-// SpanReferenceType is an enum type describing different categories of
-// relationships between two Spans. If Span-2 refers to Span-1, the
-// SpanReferenceType describes Span-1 from Span-2's perspective. For example,
-// ChildOfRef means that Span-1 created Span-2.
-//
-// NOTE: Span-1 and Span-2 do *not* necessarily depend on each other for
-// completion; e.g., Span-2 may be part of a background job enqueued by Span-1,
-// or Span-2 may be sitting in a distributed queue behind Span-1.
-type SpanReferenceType int
-
-const (
- // ChildOfRef refers to a parent Span that caused *and* somehow depends
- // upon the new child Span. Often (but not always), the parent Span cannot
- // finish until the child Span does.
- //
- // An timing diagram for a ChildOfRef that's blocked on the new Span:
- //
- // [-Parent Span---------]
- // [-Child Span----]
- //
- // See http://opentracing.io/spec/
- //
- // See opentracing.ChildOf()
- ChildOfRef SpanReferenceType = iota
-
- // FollowsFromRef refers to a parent Span that does not depend in any way
- // on the result of the new child Span. For instance, one might use
- // FollowsFromRefs to describe pipeline stages separated by queues,
- // or a fire-and-forget cache insert at the tail end of a web request.
- //
- // A FollowsFromRef Span is part of the same logical trace as the new Span:
- // i.e., the new Span is somehow caused by the work of its FollowsFromRef.
- //
- // All of the following could be valid timing diagrams for children that
- // "FollowFrom" a parent.
- //
- // [-Parent Span-] [-Child Span-]
- //
- //
- // [-Parent Span--]
- // [-Child Span-]
- //
- //
- // [-Parent Span-]
- // [-Child Span-]
- //
- // See http://opentracing.io/spec/
- //
- // See opentracing.FollowsFrom()
- FollowsFromRef
-)
-
-// SpanReference is a StartSpanOption that pairs a SpanReferenceType and a
-// referenced SpanContext. See the SpanReferenceType documentation for
-// supported relationships. If SpanReference is created with
-// ReferencedContext==nil, it has no effect. Thus it allows for a more concise
-// syntax for starting spans:
-//
-// sc, _ := tracer.Extract(someFormat, someCarrier)
-// span := tracer.StartSpan("operation", opentracing.ChildOf(sc))
-//
-// The `ChildOf(sc)` option above will not panic if sc == nil, it will just
-// not add the parent span reference to the options.
-type SpanReference struct {
- Type SpanReferenceType
- ReferencedContext SpanContext
-}
-
-// Apply satisfies the StartSpanOption interface.
-func (r SpanReference) Apply(o *StartSpanOptions) {
- if r.ReferencedContext != nil {
- o.References = append(o.References, r)
- }
-}
-
-// ChildOf returns a StartSpanOption pointing to a dependent parent span.
-// If sc == nil, the option has no effect.
-//
-// See ChildOfRef, SpanReference
-func ChildOf(sc SpanContext) SpanReference {
- return SpanReference{
- Type: ChildOfRef,
- ReferencedContext: sc,
- }
-}
-
-// FollowsFrom returns a StartSpanOption pointing to a parent Span that caused
-// the child Span but does not directly depend on its result in any way.
-// If sc == nil, the option has no effect.
-//
-// See FollowsFromRef, SpanReference
-func FollowsFrom(sc SpanContext) SpanReference {
- return SpanReference{
- Type: FollowsFromRef,
- ReferencedContext: sc,
- }
-}
-
-// StartTime is a StartSpanOption that sets an explicit start timestamp for the
-// new Span.
-type StartTime time.Time
-
-// Apply satisfies the StartSpanOption interface.
-func (t StartTime) Apply(o *StartSpanOptions) {
- o.StartTime = time.Time(t)
-}
-
-// Tags are a generic map from an arbitrary string key to an opaque value type.
-// The underlying tracing system is responsible for interpreting and
-// serializing the values.
-type Tags map[string]interface{}
-
-// Apply satisfies the StartSpanOption interface.
-func (t Tags) Apply(o *StartSpanOptions) {
- if o.Tags == nil {
- o.Tags = make(map[string]interface{})
- }
- for k, v := range t {
- o.Tags[k] = v
- }
-}
-
-// Tag may be passed as a StartSpanOption to add a tag to new spans,
-// or its Set method may be used to apply the tag to an existing Span,
-// for example:
-//
-// tracer.StartSpan("opName", Tag{"Key", value})
-//
-// or
-//
-// Tag{"key", value}.Set(span)
-type Tag struct {
- Key string
- Value interface{}
-}
-
-// Apply satisfies the StartSpanOption interface.
-func (t Tag) Apply(o *StartSpanOptions) {
- if o.Tags == nil {
- o.Tags = make(map[string]interface{})
- }
- o.Tags[t.Key] = t.Value
-}
-
-// Set applies the tag to an existing Span.
-func (t Tag) Set(s Span) {
- s.SetTag(t.Key, t.Value)
-}