log

package
v0.0.1 Latest Latest
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 Go to latest Published: Nov 1, 2022 License: MIT Imports: 8 Imported by: 12

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Index

Constants

This section is empty.

Variables

View Source 
var (
	Out io.Writer = os.Stderr
)

Functions

func Configure 

func Configure(config Config) error

func KvParse 

func KvParse(line string) map[string]string

func KvParseAll 

func KvParseAll(l string) []map[string]string

Types

type Config 

type Config struct {
	Level    string   `json:"level"`
	PoolSize uint16   `json:"pool_size"`
	Format   string   `json:"format"`
	KV       KvConfig `json:"kv"`
}

type Factory 

type Factory func(p *Pool) Logger

func KvFactory 

func KvFactory(maxSize uint32) Factory

type Field 

type Field struct {
	// contains filtered or unexported fields
}

func NewField 

func NewField() *Field

func (*Field) Finalize 

func (f *Field) Finalize() Field

just return Field so that it can be used in chaining

func (*Field) Int 

func (f *Field) Int(key string, value int) *Field

func (*Field) KV 

func (f *Field) KV() []byte

func (*Field) String 

func (f *Field) String(key string, value string) *Field

type KvConfig 

type KvConfig struct {
	MaxSize uint32 `json:"max_size"`
}

type KvLogger 

type KvLogger struct {
	// contains filtered or unexported fields
}

func NewKvLogger 

func NewKvLogger(maxSize uint32, pool *Pool) *KvLogger

func (*KvLogger) Bytes 

func (l *KvLogger) Bytes() []byte

Get the bytes from the logger. This is only valid before Log is called (after log is called, you'll get an empty slice). Only really useful for testing.

func (*KvLogger) Err 

func (l *KvLogger) Err(err error) Logger

Add a field (key=value) where value is an error

func (*KvLogger) Error 

func (l *KvLogger) Error(ctx string) Logger

Log an error-level message. Every message must have a [hopefully] unique context

func (*KvLogger) Fatal 

func (l *KvLogger) Fatal(ctx string) Logger

Log an fatal-level message. Every message must have a [hopefully] unique context

func (*KvLogger) Field 

func (l *KvLogger) Field(field Field) Logger

func (*KvLogger) Fixed 

func (l *KvLogger) Fixed()

Logger will _always_ include this data. Meant to be used with the Field builder. Even once released to the pool and re-checked out, this data will still be in the logger. For checkout-specific data, see MultiUse().

func (*KvLogger) Info 

func (l *KvLogger) Info(ctx string) Logger

Log an info-level message. Every message must have a [hopefully] unique context

func (*KvLogger) Int 

func (l *KvLogger) Int(key string, value int) Logger

Add a field (key=value) where value is an int

func (*KvLogger) Int64 

func (l *KvLogger) Int64(key string, value int64) Logger

Add a field (key=value) where value is an int

func (*KvLogger) Log 

func (l *KvLogger) Log()

Write the log to our globally configured writer

func (*KvLogger) LogTo 

func (l *KvLogger) LogTo(out io.Writer)

func (*KvLogger) MultiUse 

func (l *KvLogger) MultiUse() Logger

Similar to Fixed, but exists only while checked out

func (*KvLogger) Release 

func (l *KvLogger) Release()

func (*KvLogger) Reset 

func (l *KvLogger) Reset()

func (*KvLogger) String 

func (l *KvLogger) String(key string, value string) Logger

Add a field (key=value) where value is a string

func (*KvLogger) Warn 

func (l *KvLogger) Warn(ctx string) Logger

Log an warn-level message. Every message must have a [hopefully] unique context

type Level 

type Level uint8
const (
	INFO Level = iota
	WARN
	ERROR
	FATAL
	NONE
)

type Logger 

type Logger interface {
	// Actually log the data to the configured output
	// If the logger was not configured for MultiUse, this
	// must release the logger back to the pool (if any).
	Log()

	// Log to the specific writer
	LogTo(io.Writer)

	// Resets the logger, without releasing it back to the pool.
	// Reset must not erased any fixed data
	Reset()

	// Releases the logger back to the pool, if one is configured.
	Release()

	// Gets the log data
	Bytes() []byte

	// Set the level and context for a new log entry
	Info(ctx string) Logger
	Warn(ctx string) Logger
	Error(ctx string) Logger
	Fatal(ctx string) Logger

	// Log an error
	Err(err error) Logger

	// Any data already in the logger will be including in _every_
	// message ever generated from this logger. This data survives both
	// a reset and a release.
	// As an example of where this could be used is a project owned loggers
	// in which case these loggers could have the project_id always included
	// in any log entry.
	Fixed()

	// Any data already in the logger will be including in _every_
	// message generated until the logger is released. This data survives a
	// a reset but not a release.
	// This is meant to be used for a request-owned logger where every entry
	// logged with the logger has request_id.
	MultiUse() Logger

	// Add an int value to the current entry
	Int(key string, value int) Logger

	// Add an int64 value to the current entry
	Int64(key string, value int64) Logger

	// Add an string value to the current entry
	String(key string, value string) Logger

	// Log a field
	Field(field Field) Logger
}

func Checkout 

func Checkout() Logger

func Error 

func Error(ctx string) Logger

func Fatal 

func Fatal(ctx string) Logger

func Info 

func Info(ctx string) Logger

func Warn 

func Warn(ctx string) Logger

type Noop 

type Noop struct {
}

func (Noop) Bytes 

func (_ Noop) Bytes() []byte

func (Noop) Err 

func (n Noop) Err(err error) Logger

func (Noop) Error 

func (n Noop) Error(ctx string) Logger

func (Noop) Fatal 

func (n Noop) Fatal(ctx string) Logger

func (Noop) Field 

func (n Noop) Field(field Field) Logger

func (Noop) Fixed 

func (n Noop) Fixed()

func (Noop) Info 

func (n Noop) Info(ctx string) Logger

func (Noop) Int 

func (n Noop) Int(key string, value int) Logger

func (Noop) Int64 

func (n Noop) Int64(key string, value int64) Logger

func (Noop) Log 

func (_ Noop) Log()

func (Noop) LogTo 

func (_ Noop) LogTo(io.Writer)

func (Noop) MultiUse 

func (n Noop) MultiUse() Logger

func (Noop) Release 

func (_ Noop) Release()

func (Noop) Reset 

func (_ Noop) Reset()

func (Noop) String 

func (n Noop) String(key string, value string) Logger

func (Noop) Warn 

func (n Noop) Warn(ctx string) Logger

type Pool 

type Pool struct {
	// contains filtered or unexported fields
}

func NewPool 

func NewPool(count uint16, level Level, factory Factory, field *Field) *Pool

func (*Pool) Checkout 

func (p *Pool) Checkout() Logger

func (*Pool) Depleted 

func (p *Pool) Depleted() uint64

func (*Pool) Error 

func (p *Pool) Error(ctx string) Logger

func (*Pool) Fatal 

func (p *Pool) Fatal(ctx string) Logger

func (*Pool) Info 

func (p *Pool) Info(ctx string) Logger

func (*Pool) Len 

func (p *Pool) Len() int

func (*Pool) Warn 

func (p *Pool) Warn(ctx string) Logger

type StructuredError 

type StructuredError struct {
	Code int            `json:"code"`
	Err  error          `json:"err"`
	Data map[string]any `json:"data"`
}

An error that's designed to be logged in a more structured manner

func Err 

func Err(code int, err error) *StructuredError

func Errf 

func Errf(code int, format string, args ...any) *StructuredError

func (StructuredError) Error 

func (e StructuredError) Error() string

func (*StructuredError) Int 

func (e *StructuredError) Int(key string, value int) *StructuredError

func (*StructuredError) String 

func (e *StructuredError) String(key string, value string) *StructuredError

Source Files

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