active/alogs/logger_scope.go

// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  scope.go
//   Created by DEV
//   Modified   24/04/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// 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.
// ------------------------------------------------------------------------

package alogs

import (
	"fmt"
	"strings"
)

type (


	LoggerScope struct {
		loggerObject

		path 	string
		nodes 	[][]byte

		mode 	ScopeMode
		parent 	Logger
		scopes 	loggerScopes
	}

	LoggerScopeFnc func (s *LoggerScope)

)


func newLoggerScope (name string, level Level, parent Logger, path string, nodes [][]byte, options []LoggerScopeFnc) *LoggerScope {
	if path != "" {
		path = fmt.Sprintf("%s%c%s",path,G.ScopeSep,name)
	} else {
		path = name 
	}
	sc := &LoggerScope {
		parent	 : parent,
		nodes 	 : append(nodes,[]byte(name)),
		path  	 : path,
	}
	sc.loggerObject = *newLoggerObject(name,level,sc.log)
	for _,o := range options {
		o(sc)
	}
	return sc 
}



func (l *LoggerScope) Nodes() [][]byte {
	return l.nodes }

func (l *LoggerScope) Path () string {
	return l.path  }

func (l *LoggerScope) Mode () (m ScopeMode) {
	l.RLock()
	m = l.mode
	l.RUnlock()
	return
}

func (l *LoggerScope) SetMode (mode ScopeMode) {
	if !mode.isValid() {
		panic(G.ErrInvalidScopeMode)
	}
	l.Lock()
	l.mode = mode
	l.Unlock()
}


func (l *LoggerScope) GetScope (name string) *LoggerScope {
	return l.getScope(strings.Split(strings.ToLower(name),g.scopeSepStr)) }

func (l *LoggerScope) getScope (nodes []string)( sc *LoggerScope) {
	l.RLock()
	if sc = l.scopes.getScope(nodes[0]); sc != nil {
		if len(nodes) > 1 {
			sc = sc.getScope(nodes[:1])
		}
	}
	l.RUnlock()
	return
}


func (l *LoggerScope) NewScope (path string, options ...LoggerScopeFnc) (*LoggerScope,error) {
	return l.newScope(strings.Split(strings.ToLower(path),g.scopeSepStr),options) }

func (l *LoggerScope) newScope (path []string, options []LoggerScopeFnc) (sc *LoggerScope, er error) {
	l.Lock()
	if sc = l.scopes.getScope(path[0]); sc == nil {
		sc = newLoggerScope(path[0], l.level, l, l.path, l.nodes,options)
		l.scopes = append(l.scopes, sc)
		if len(path) == 1 {
			l.Unlock()
			return
		}
	} else if len(path) == 1 {
		l.Unlock()
		return nil,G.ErrDuplicatedScope.WrapWithFieldString(errFieldScope,path[0])
	}
	sc,er = sc.newScope(path[1:],options)
	l.Unlock()
	return
}




func (l *LoggerScope) Log(ent *Entry) error {
	l.Lock()
	if  l.mode.IsFilter() && !l.level.Has(ent.Level) {
		l.Unlock()
		return nil
	}
	if l.mode.IsCascade() {
		l.extenders.ExtendEntry(ent)
	}
	l.Unlock()
	return l.parent.Log(ent)
}


func (l *LoggerScope) log(lvl Level, msg string, err error,ops []EntryFnc){
	l.Lock()
	if !l.level.Has(lvl) {
		l.Unlock()
		return
	}
	en := l.extenders.ExtendEntry(AcquireEntry(nil,lvl,msg,err,ops...))
	en.Scope = l.path
	en.Scopes= l.nodes
	l.Unlock()

	_ = l.parent.Log(en)
	ReleaseEntry(en)

}


func LoggerScopeWithMode(mode ScopeMode) LoggerScopeFnc {
	return func(s *LoggerScope) {
		if !mode.isValid() {
			panic(G.ErrInvalidScopeMode.WrapWithFieldString(entryFieldLogger,s.name))
		}
		if mode == ScopeDirect {
			s.mode = ScopeDirect
			return
		}
		s.mode |= mode
	}
}

/*
func LoggerScopeWithLevel(level Level) LoggerScopeFnc {
	return func(s *LoggerScope) {
		if !level.isValid() {
			panic(G.ErrInvalidLevel.WrapWithFieldString(entryFieldLogger,s.name))
		}
		s.level = level
	}
}
*/

func LoggerScopeWithExtender(extender ...EntryExtender) LoggerScopeFnc {
	return func(s *LoggerScope) {
		s.extenders = append(s.extenders,extender ...) } }