Holger Hildebrandt | fa07499 | 2020-03-27 15:42:06 +0000 | [diff] [blame^] | 1 | // Copyright 2015 CoreOS, Inc. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package capnslog |
| 16 | |
| 17 | import ( |
| 18 | "fmt" |
| 19 | "os" |
| 20 | ) |
| 21 | |
| 22 | type PackageLogger struct { |
| 23 | pkg string |
| 24 | level LogLevel |
| 25 | } |
| 26 | |
| 27 | const calldepth = 2 |
| 28 | |
| 29 | func (p *PackageLogger) internalLog(depth int, inLevel LogLevel, entries ...interface{}) { |
| 30 | logger.Lock() |
| 31 | defer logger.Unlock() |
| 32 | if inLevel != CRITICAL && p.level < inLevel { |
| 33 | return |
| 34 | } |
| 35 | if logger.formatter != nil { |
| 36 | logger.formatter.Format(p.pkg, inLevel, depth+1, entries...) |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | // SetLevel allows users to change the current logging level. |
| 41 | func (p *PackageLogger) SetLevel(l LogLevel) { |
| 42 | logger.Lock() |
| 43 | defer logger.Unlock() |
| 44 | p.level = l |
| 45 | } |
| 46 | |
| 47 | // LevelAt checks if the given log level will be outputted under current setting. |
| 48 | func (p *PackageLogger) LevelAt(l LogLevel) bool { |
| 49 | logger.Lock() |
| 50 | defer logger.Unlock() |
| 51 | return p.level >= l |
| 52 | } |
| 53 | |
| 54 | // Log a formatted string at any level between ERROR and TRACE |
| 55 | func (p *PackageLogger) Logf(l LogLevel, format string, args ...interface{}) { |
| 56 | p.internalLog(calldepth, l, fmt.Sprintf(format, args...)) |
| 57 | } |
| 58 | |
| 59 | // Log a message at any level between ERROR and TRACE |
| 60 | func (p *PackageLogger) Log(l LogLevel, args ...interface{}) { |
| 61 | p.internalLog(calldepth, l, fmt.Sprint(args...)) |
| 62 | } |
| 63 | |
| 64 | // log stdlib compatibility |
| 65 | |
| 66 | func (p *PackageLogger) Println(args ...interface{}) { |
| 67 | p.internalLog(calldepth, INFO, fmt.Sprintln(args...)) |
| 68 | } |
| 69 | |
| 70 | func (p *PackageLogger) Printf(format string, args ...interface{}) { |
| 71 | p.Logf(INFO, format, args...) |
| 72 | } |
| 73 | |
| 74 | func (p *PackageLogger) Print(args ...interface{}) { |
| 75 | p.internalLog(calldepth, INFO, fmt.Sprint(args...)) |
| 76 | } |
| 77 | |
| 78 | // Panic and fatal |
| 79 | |
| 80 | func (p *PackageLogger) Panicf(format string, args ...interface{}) { |
| 81 | s := fmt.Sprintf(format, args...) |
| 82 | p.internalLog(calldepth, CRITICAL, s) |
| 83 | panic(s) |
| 84 | } |
| 85 | |
| 86 | func (p *PackageLogger) Panic(args ...interface{}) { |
| 87 | s := fmt.Sprint(args...) |
| 88 | p.internalLog(calldepth, CRITICAL, s) |
| 89 | panic(s) |
| 90 | } |
| 91 | |
| 92 | func (p *PackageLogger) Panicln(args ...interface{}) { |
| 93 | s := fmt.Sprintln(args...) |
| 94 | p.internalLog(calldepth, CRITICAL, s) |
| 95 | panic(s) |
| 96 | } |
| 97 | |
| 98 | func (p *PackageLogger) Fatalf(format string, args ...interface{}) { |
| 99 | p.Logf(CRITICAL, format, args...) |
| 100 | os.Exit(1) |
| 101 | } |
| 102 | |
| 103 | func (p *PackageLogger) Fatal(args ...interface{}) { |
| 104 | s := fmt.Sprint(args...) |
| 105 | p.internalLog(calldepth, CRITICAL, s) |
| 106 | os.Exit(1) |
| 107 | } |
| 108 | |
| 109 | func (p *PackageLogger) Fatalln(args ...interface{}) { |
| 110 | s := fmt.Sprintln(args...) |
| 111 | p.internalLog(calldepth, CRITICAL, s) |
| 112 | os.Exit(1) |
| 113 | } |
| 114 | |
| 115 | // Error Functions |
| 116 | |
| 117 | func (p *PackageLogger) Errorf(format string, args ...interface{}) { |
| 118 | p.Logf(ERROR, format, args...) |
| 119 | } |
| 120 | |
| 121 | func (p *PackageLogger) Error(entries ...interface{}) { |
| 122 | p.internalLog(calldepth, ERROR, entries...) |
| 123 | } |
| 124 | |
| 125 | // Warning Functions |
| 126 | |
| 127 | func (p *PackageLogger) Warningf(format string, args ...interface{}) { |
| 128 | p.Logf(WARNING, format, args...) |
| 129 | } |
| 130 | |
| 131 | func (p *PackageLogger) Warning(entries ...interface{}) { |
| 132 | p.internalLog(calldepth, WARNING, entries...) |
| 133 | } |
| 134 | |
| 135 | // Notice Functions |
| 136 | |
| 137 | func (p *PackageLogger) Noticef(format string, args ...interface{}) { |
| 138 | p.Logf(NOTICE, format, args...) |
| 139 | } |
| 140 | |
| 141 | func (p *PackageLogger) Notice(entries ...interface{}) { |
| 142 | p.internalLog(calldepth, NOTICE, entries...) |
| 143 | } |
| 144 | |
| 145 | // Info Functions |
| 146 | |
| 147 | func (p *PackageLogger) Infof(format string, args ...interface{}) { |
| 148 | p.Logf(INFO, format, args...) |
| 149 | } |
| 150 | |
| 151 | func (p *PackageLogger) Info(entries ...interface{}) { |
| 152 | p.internalLog(calldepth, INFO, entries...) |
| 153 | } |
| 154 | |
| 155 | // Debug Functions |
| 156 | |
| 157 | func (p *PackageLogger) Debugf(format string, args ...interface{}) { |
| 158 | if p.level < DEBUG { |
| 159 | return |
| 160 | } |
| 161 | p.Logf(DEBUG, format, args...) |
| 162 | } |
| 163 | |
| 164 | func (p *PackageLogger) Debug(entries ...interface{}) { |
| 165 | if p.level < DEBUG { |
| 166 | return |
| 167 | } |
| 168 | p.internalLog(calldepth, DEBUG, entries...) |
| 169 | } |
| 170 | |
| 171 | // Trace Functions |
| 172 | |
| 173 | func (p *PackageLogger) Tracef(format string, args ...interface{}) { |
| 174 | if p.level < TRACE { |
| 175 | return |
| 176 | } |
| 177 | p.Logf(TRACE, format, args...) |
| 178 | } |
| 179 | |
| 180 | func (p *PackageLogger) Trace(entries ...interface{}) { |
| 181 | if p.level < TRACE { |
| 182 | return |
| 183 | } |
| 184 | p.internalLog(calldepth, TRACE, entries...) |
| 185 | } |
| 186 | |
| 187 | func (p *PackageLogger) Flush() { |
| 188 | logger.Lock() |
| 189 | defer logger.Unlock() |
| 190 | logger.formatter.Flush() |
| 191 | } |