/
messages.go
140 lines (117 loc) · 4.03 KB
/
messages.go
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package gol
import (
"fmt"
"time"
"github.com/mediaFORGE/gol/fields"
field_severity "github.com/mediaFORGE/gol/fields/severity"
field_timestamp "github.com/mediaFORGE/gol/fields/timestamp"
)
// LogMessage is a log message.
type LogMessage map[string]interface{}
// FieldLength returns the number of fields in the message.
func (msg LogMessage) FieldLength() (n int) {
return len(msg)
}
// Get returns the value of the given logger message field.
func (msg LogMessage) Get(f string) (i interface{}, err error) {
if v, ok := msg[f]; ok {
return v, nil
}
return nil, fmt.Errorf("Message does not contain field %s", f)
}
// Severity returns the value of the logger message severity level field.
func (msg LogMessage) Severity() (lvl field_severity.Type, err error) {
var v interface{}
if v, err = msg.Get(fields.Severity); err == nil {
return v.(field_severity.Type), nil
}
return field_severity.Type(-1), err
}
// SetSeverity sets the value of the logger message severity level field.
func (msg LogMessage) SetSeverity(lvl field_severity.Type) (err error) {
if err = lvl.Validate(); err == nil {
msg[fields.Severity] = lvl
}
return
}
// Start returns the value of the logger message start field.
func (msg LogMessage) Start() (s *time.Time, err error) {
var v interface{}
if v, err = msg.Get(fields.Start); err == nil {
return v.(*time.Time), nil
}
return &time.Time{}, err
}
// SetStart sets the value of the logger message start field.
func (msg LogMessage) SetStart(s *time.Time) (err error) {
msg[fields.Start] = s
return nil
}
// Stop returns the value of the logger message stop field.
func (msg LogMessage) Stop() (s *time.Time, err error) {
var v interface{}
if v, err = msg.Get(fields.Stop); err == nil {
return v.(*time.Time), nil
}
return &time.Time{}, err
}
// SetStop sets the value of the logger message stop field.
func (msg LogMessage) SetStop(s *time.Time) (err error) {
msg[fields.Stop] = s
return nil
}
// Timestamp returns the value of the logger message timestamp field.
func (msg LogMessage) Timestamp() (*field_timestamp.Type, error) {
var v interface{}
var err error
if v, err = msg.Get(fields.Timestamp); err == nil {
vt := v.(field_timestamp.Type)
return &vt, nil
}
return nil, err
}
// NewLogMessageFunc is the function signature of LogMessage constructor functions.
type NewLogMessageFunc func(args ...interface{}) *LogMessage
// NewEmergency builds an emergency severity message.
func NewEmergency(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Emergency), args...)
}
// NewAlert builds an alert severity message.
func NewAlert(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Alert), args...)
}
// NewCritical builds a critical severity message.
func NewCritical(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Critical), args...)
}
// NewError builds an error severity message.
func NewError(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Error), args...)
}
// NewWarning builds a warning severity message.
func NewWarning(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Warning), args...)
}
// NewNotice builds a notice severity message.
func NewNotice(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Notice), args...)
}
// NewInfo builds an info severity message.
func NewInfo(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Info), args...)
}
// NewDebug builds a debug severity message.
func NewDebug(args ...interface{}) *LogMessage {
return NewMessage(field_severity.Type(field_severity.Debug), args...)
}
// NewMessage build a log message with the given severity level.
func NewMessage(l field_severity.Type, args ...interface{}) *LogMessage {
msg := LogMessage{
fields.Timestamp: field_timestamp.Type{time.Now()},
fields.Severity: l,
}
for i := 0; i < len(args); i += 2 {
msg[args[i].(string)] = args[i+1]
}
return &msg
}