github.com/xraypb/xray-core@v1.6.6/app/log/log_creator.go (about)

     1  package log
     2  
     3  import (
     4  	"sync"
     5  
     6  	"github.com/xraypb/xray-core/common"
     7  	"github.com/xraypb/xray-core/common/log"
     8  )
     9  
    10  type HandlerCreatorOptions struct {
    11  	Path string
    12  }
    13  
    14  type HandlerCreator func(LogType, HandlerCreatorOptions) (log.Handler, error)
    15  
    16  var handlerCreatorMap = make(map[LogType]HandlerCreator)
    17  
    18  var handlerCreatorMapLock = &sync.RWMutex{}
    19  
    20  func RegisterHandlerCreator(logType LogType, f HandlerCreator) error {
    21  	if f == nil {
    22  		return newError("nil HandlerCreator")
    23  	}
    24  
    25  	handlerCreatorMapLock.Lock()
    26  	defer handlerCreatorMapLock.Unlock()
    27  
    28  	handlerCreatorMap[logType] = f
    29  	return nil
    30  }
    31  
    32  func createHandler(logType LogType, options HandlerCreatorOptions) (log.Handler, error) {
    33  	handlerCreatorMapLock.RLock()
    34  	defer handlerCreatorMapLock.RUnlock()
    35  
    36  	creator, found := handlerCreatorMap[logType]
    37  	if !found {
    38  		return nil, newError("unable to create log handler for ", logType)
    39  	}
    40  	return creator(logType, options)
    41  }
    42  
    43  func init() {
    44  	common.Must(RegisterHandlerCreator(LogType_Console, func(lt LogType, options HandlerCreatorOptions) (log.Handler, error) {
    45  		return log.NewLogger(log.CreateStdoutLogWriter()), nil
    46  	}))
    47  
    48  	common.Must(RegisterHandlerCreator(LogType_File, func(lt LogType, options HandlerCreatorOptions) (log.Handler, error) {
    49  		creator, err := log.CreateFileLogWriter(options.Path)
    50  		if err != nil {
    51  			return nil, err
    52  		}
    53  		return log.NewLogger(creator), nil
    54  	}))
    55  
    56  	common.Must(RegisterHandlerCreator(LogType_None, func(lt LogType, options HandlerCreatorOptions) (log.Handler, error) {
    57  		return nil, nil
    58  	}))
    59  }