github.com/wangyougui/gf/v2@v2.6.5/frame/gins/gins_log.go (about)

     1  // Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
     2  //
     3  // This Source Code Form is subject to the terms of the MIT License.
     4  // If a copy of the MIT was not distributed with this file,
     5  // You can obtain one at https://github.com/wangyougui/gf.
     6  
     7  package gins
     8  
     9  import (
    10  	"context"
    11  	"fmt"
    12  
    13  	"github.com/wangyougui/gf/v2/internal/consts"
    14  	"github.com/wangyougui/gf/v2/internal/instance"
    15  	"github.com/wangyougui/gf/v2/os/glog"
    16  	"github.com/wangyougui/gf/v2/util/gutil"
    17  )
    18  
    19  // Log returns an instance of glog.Logger.
    20  // The parameter `name` is the name for the instance.
    21  // Note that it panics if any error occurs duration instance creating.
    22  func Log(name ...string) *glog.Logger {
    23  	var (
    24  		ctx          = context.Background()
    25  		instanceName = glog.DefaultName
    26  	)
    27  	if len(name) > 0 && name[0] != "" {
    28  		instanceName = name[0]
    29  	}
    30  	instanceKey := fmt.Sprintf("%s.%s", frameCoreComponentNameLogger, instanceName)
    31  	return instance.GetOrSetFuncLock(instanceKey, func() interface{} {
    32  		logger := glog.Instance(instanceName)
    33  		// To avoid file no found error while it's not necessary.
    34  		var (
    35  			configMap      map[string]interface{}
    36  			loggerNodeName = consts.ConfigNodeNameLogger
    37  		)
    38  		// Try to find possible `loggerNodeName` in case-insensitive way.
    39  		if configData, _ := Config().Data(ctx); len(configData) > 0 {
    40  			if v, _ := gutil.MapPossibleItemByKey(configData, consts.ConfigNodeNameLogger); v != "" {
    41  				loggerNodeName = v
    42  			}
    43  		}
    44  		// Retrieve certain logger configuration by logger name.
    45  		certainLoggerNodeName := fmt.Sprintf(`%s.%s`, loggerNodeName, instanceName)
    46  		if v, _ := Config().Get(ctx, certainLoggerNodeName); !v.IsEmpty() {
    47  			configMap = v.Map()
    48  		}
    49  		// Retrieve global logger configuration if configuration for certain logger name does not exist.
    50  		if len(configMap) == 0 {
    51  			if v, _ := Config().Get(ctx, loggerNodeName); !v.IsEmpty() {
    52  				configMap = v.Map()
    53  			}
    54  		}
    55  		// Set logger config if config map is not empty.
    56  		if len(configMap) > 0 {
    57  			if err := logger.SetConfigWithMap(configMap); err != nil {
    58  				panic(err)
    59  			}
    60  		}
    61  		return logger
    62  	}).(*glog.Logger)
    63  }