95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
// Copyright (C) 2022 The OKit Authors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
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// OR OTHER DEALINGS IN THE SOFTWARE.
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package okit
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import (
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"context"
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)
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var (
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global chan Client
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)
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func init() {
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global = make(chan Client, 1)
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global <- NewClient()
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}
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// Replace updates the default Client to be the provided one.
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func Replace(c Client) {
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<-global
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global <- c
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}
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// C returns a copy of the current default Client.
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func C() Client {
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c := <-global
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global <- c
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return c
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}
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// ContextKey is a holder structure that allows data to be attached to contexts.
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type ContextKey string
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// SpanKey identifies a span on a given context.
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var SpanKey = ContextKey("okit.span")
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// With returns a client containing additional tags.
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func With(tags ...Tag) Client {
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return C().With(tags...)
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}
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// Emit emits an event with the provided tags.
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func Emit(event string, tags ...Tag) {
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C().WithCallerSkip(3).Emit(event, tags...)
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}
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// Observe reports a metric value with the provided tags.
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func Observe(metric string, value float64, tags ...Tag) {
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C().WithCallerSkip(3).Observe(metric, value, tags...)
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}
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// Trace traces a function call. It implements distributed tracing and bookend events.
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func Trace(ctxp *context.Context, tags ...Tag) ActiveTrace {
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return C().WithCallerSkip(3).Trace(ctxp, tags...)
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}
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// Debug writes a message at a debug level.
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func Debug(msg string, tags ...Tag) {
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C().WithCallerSkip(3).Debug(msg, tags...)
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}
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// Info writes a message at a informational level.
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func Info(msg string, tags ...Tag) {
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C().WithCallerSkip(3).Info(msg, tags...)
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}
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// Warn writes a message at a warning level.
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func Warn(msg string, tags ...Tag) {
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C().WithCallerSkip(3).Warn(msg, tags...)
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}
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// Error writes a message at a error level.
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func Error(msg string, tags ...Tag) {
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C().WithCallerSkip(3).Error(msg, tags...)
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}
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