diff options
Diffstat (limited to 'vendor/github.com/opentracing')
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. 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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 @@ -[](https://gitter.im/opentracing/public) [](https://travis-ci.org/opentracing/opentracing-go) [](http://godoc.org/github.com/opentracing/opentracing-go) -[](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) -} |