49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// Copyright (C) 2017 Michał Matczuk
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package log
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// Context is simplified version of go-kit log Context
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// https://godoc.org/github.com/go-kit/kit/log#Context.
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type Context struct {
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prefix []interface{}
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suffix []interface{}
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logger Logger
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}
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// NewContext returns a logger that adds prefix before keyvals.
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func NewContext(logger Logger) *Context {
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return &Context{
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prefix: make([]interface{}, 0),
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suffix: make([]interface{}, 0),
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logger: logger,
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}
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}
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// With returns a new Context with keyvals appended to those of the receiver.
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func (c *Context) With(keyvals ...interface{}) *Context {
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return &Context{
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prefix: c.prefix,
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suffix: append(c.suffix, keyvals...),
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logger: c.logger,
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}
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}
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// WithPrefix returns a new Context with keyvals prepended to those of the
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// receiver.
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func (c *Context) WithPrefix(keyvals ...interface{}) *Context {
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return &Context{
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prefix: append(c.prefix, keyvals...),
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suffix: c.suffix,
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logger: c.logger,
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}
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}
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// Log adds prefix and suffix to keyvals and calls internal logger.
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func (c *Context) Log(keyvals ...interface{}) error {
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s := append(c.prefix, keyvals...)
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s = append(s, c.suffix...)
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return c.logger.Log(s...)
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}
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