google.golang.org/grpc@v1.72.2/grpclog/component.go (about)

     1  /*
     2   *
     3   * Copyright 2020 gRPC authors.
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License");
     6   * you may not use this file except in compliance with the License.
     7   * You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   */
    18  
    19  package grpclog
    20  
    21  import (
    22  	"fmt"
    23  )
    24  
    25  // componentData records the settings for a component.
    26  type componentData struct {
    27  	name string
    28  }
    29  
    30  var cache = map[string]*componentData{}
    31  
    32  func (c *componentData) InfoDepth(depth int, args ...any) {
    33  	args = append([]any{"[" + string(c.name) + "]"}, args...)
    34  	InfoDepth(depth+1, args...)
    35  }
    36  
    37  func (c *componentData) WarningDepth(depth int, args ...any) {
    38  	args = append([]any{"[" + string(c.name) + "]"}, args...)
    39  	WarningDepth(depth+1, args...)
    40  }
    41  
    42  func (c *componentData) ErrorDepth(depth int, args ...any) {
    43  	args = append([]any{"[" + string(c.name) + "]"}, args...)
    44  	ErrorDepth(depth+1, args...)
    45  }
    46  
    47  func (c *componentData) FatalDepth(depth int, args ...any) {
    48  	args = append([]any{"[" + string(c.name) + "]"}, args...)
    49  	FatalDepth(depth+1, args...)
    50  }
    51  
    52  func (c *componentData) Info(args ...any) {
    53  	c.InfoDepth(1, args...)
    54  }
    55  
    56  func (c *componentData) Warning(args ...any) {
    57  	c.WarningDepth(1, args...)
    58  }
    59  
    60  func (c *componentData) Error(args ...any) {
    61  	c.ErrorDepth(1, args...)
    62  }
    63  
    64  func (c *componentData) Fatal(args ...any) {
    65  	c.FatalDepth(1, args...)
    66  }
    67  
    68  func (c *componentData) Infof(format string, args ...any) {
    69  	c.InfoDepth(1, fmt.Sprintf(format, args...))
    70  }
    71  
    72  func (c *componentData) Warningf(format string, args ...any) {
    73  	c.WarningDepth(1, fmt.Sprintf(format, args...))
    74  }
    75  
    76  func (c *componentData) Errorf(format string, args ...any) {
    77  	c.ErrorDepth(1, fmt.Sprintf(format, args...))
    78  }
    79  
    80  func (c *componentData) Fatalf(format string, args ...any) {
    81  	c.FatalDepth(1, fmt.Sprintf(format, args...))
    82  }
    83  
    84  func (c *componentData) Infoln(args ...any) {
    85  	c.InfoDepth(1, args...)
    86  }
    87  
    88  func (c *componentData) Warningln(args ...any) {
    89  	c.WarningDepth(1, args...)
    90  }
    91  
    92  func (c *componentData) Errorln(args ...any) {
    93  	c.ErrorDepth(1, args...)
    94  }
    95  
    96  func (c *componentData) Fatalln(args ...any) {
    97  	c.FatalDepth(1, args...)
    98  }
    99  
   100  func (c *componentData) V(l int) bool {
   101  	return V(l)
   102  }
   103  
   104  // Component creates a new component and returns it for logging. If a component
   105  // with the name already exists, nothing will be created and it will be
   106  // returned. SetLoggerV2 will panic if it is called with a logger created by
   107  // Component.
   108  func Component(componentName string) DepthLoggerV2 {
   109  	if cData, ok := cache[componentName]; ok {
   110  		return cData
   111  	}
   112  	c := &componentData{componentName}
   113  	cache[componentName] = c
   114  	return c
   115  }