Total Complexity | 45 |
Total Lines | 307 |
Duplicated Lines | 0 % |
Changes | 7 | ||
Bugs | 0 | Features | 0 |
Complex classes like FileLogger often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use FileLogger, and based on these observations, apply Extract Interface, too.
1 | <?php |
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19 | class FileLogger extends AbstractLogger implements ConfigInterface |
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20 | { |
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21 | use ConfigTrait; |
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22 | |||
23 | /** |
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24 | * 文件 |
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25 | * |
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26 | * @var resource |
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27 | */ |
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28 | protected $temp; |
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29 | |||
30 | /** |
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31 | * 临时文件名 |
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32 | * |
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33 | * @var string |
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34 | */ |
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35 | protected $tempName; |
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36 | |||
37 | /** |
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38 | * 移除文件 |
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39 | * |
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40 | * @var array |
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41 | */ |
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42 | protected $removeFiles = []; |
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43 | |||
44 | /** |
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45 | * 最后的日志 |
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46 | * |
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47 | * @var string |
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48 | */ |
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49 | protected $latest; |
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50 | |||
51 | /** |
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52 | * 构建文件日志 |
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53 | * |
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54 | * @param array $config |
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55 | */ |
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56 | public function __construct(array $config = []) |
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57 | { |
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58 | $this->set($config); |
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59 | register_shutdown_function([$this, 'shutdown']); |
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60 | } |
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61 | |||
62 | /** |
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63 | * 设置配置 |
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64 | * @param array $config |
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65 | */ |
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66 | public function set(array $config) |
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67 | { |
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68 | $this->applyConfig($config); |
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69 | FileSystem::make($this->getConfig('save-path')); |
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70 | FileSystem::make($this->getConfig('save-dump-path')); |
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71 | FileSystem::make($this->getConfig('save-zip-path')); |
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72 | } |
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73 | |||
74 | /** |
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75 | * @return resource |
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76 | * @throws FileLoggerException |
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77 | */ |
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78 | public function getAvailableWrite() |
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85 | } |
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86 | |||
87 | /** |
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88 | * @throws FileLoggerException |
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89 | */ |
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90 | private function prepareWrite() |
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91 | { |
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92 | $unique = substr(md5(uniqid()), 0, 8); |
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93 | $save = $this->getConfig('save-path'); |
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94 | $this->tempName = $save . '/' . date('YmdHis') . '.' . $unique . '.log'; |
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95 | $temp = fopen($this->tempName, 'w+'); |
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96 | if ($temp !== false) { |
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97 | $this->temp = $temp; |
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98 | } else { |
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99 | throw new FileLoggerException(__METHOD__ . ':' . sprintf('cannot create log file')); |
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100 | } |
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101 | $this->latest = $save . '/' . $this->getConfig('file-name'); |
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102 | } |
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103 | |||
104 | /** |
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105 | * @return array |
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106 | */ |
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107 | public function getDefaultConfig(): array |
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117 | ]; |
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118 | } |
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119 | |||
120 | /** |
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121 | * 打包文件 |
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122 | */ |
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123 | private function packLogFile() |
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156 | ); |
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157 | } |
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158 | } |
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159 | } |
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160 | |||
161 | /** |
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162 | * @param string $from |
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163 | * @param string $to |
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164 | */ |
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165 | private function safeMoveKeep(string $from, string $to) |
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166 | { |
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167 | $fromFile = fopen($from, 'r'); |
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168 | $toFile = fopen($to, 'w+'); |
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169 | if ($fromFile !== false && $toFile !== false) { |
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170 | flock($toFile, LOCK_EX); |
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171 | // 复制内容 |
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172 | stream_copy_to_stream($fromFile, $toFile); |
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173 | flock($toFile, LOCK_UN); |
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174 | fclose($toFile); |
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175 | fclose($fromFile); |
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176 | } |
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177 | // 清空内容 |
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178 | $this->clearContent($from); |
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179 | } |
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180 | |||
181 | /** |
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182 | * 清空内容 |
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183 | * @param string $path |
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184 | * @return bool |
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185 | */ |
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186 | private function clearContent(string $path) |
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187 | { |
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188 | $file = fopen($path, 'w'); |
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189 | if ($file) { |
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190 | fclose($file); |
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191 | return true; |
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192 | } |
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193 | return false; |
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194 | } |
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195 | |||
196 | /** |
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197 | * 获取压缩 |
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198 | * |
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199 | * @param string $path |
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200 | * @return ZipArchive|null |
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201 | */ |
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202 | private function getZipArchive(string $path) |
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203 | { |
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204 | if (class_exists('ZipArchive')) { |
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205 | $zip = new ZipArchive; |
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206 | $res = $zip->open($path, ZipArchive::CREATE); |
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207 | if ($res === true) { |
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208 | return $zip; |
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209 | } |
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210 | } |
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211 | return null; |
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212 | } |
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213 | |||
214 | /** |
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215 | * 检查日志文件大小 |
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216 | * |
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217 | * @return boolean |
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218 | */ |
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219 | private function checkSize(): bool |
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220 | { |
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221 | $logFile = $this->latest; |
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222 | if (file_exists($logFile)) { |
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223 | if (filesize($logFile) > $this->getConfig('max-file-size')) { |
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224 | return true; |
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225 | } |
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226 | } |
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227 | return false; |
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228 | } |
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229 | |||
230 | |||
231 | /** |
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232 | * @param string $level |
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233 | * @param string $message |
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234 | * @param array $context |
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235 | * @return mixed|void |
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236 | * @throws FileLoggerException |
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237 | */ |
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238 | public function log($level, string $message, array $context = []) |
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239 | { |
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240 | if (LogLevel::compare($level, $this->getConfig('log-level')) >= 0) { |
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241 | $replace = []; |
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242 | $message = $this->interpolate($message, $context); |
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243 | $replace['%level%'] = $level; |
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244 | $replace['%message%'] = $message; |
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245 | $write = strtr($this->getConfig('log-format'), $replace); |
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246 | fwrite($this->getAvailableWrite(), $write . PHP_EOL); |
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247 | } |
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248 | } |
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249 | |||
250 | |||
251 | /** |
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252 | * 将临时文件写入最后日志 |
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253 | */ |
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254 | private function rollLatest() |
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255 | { |
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256 | if (isset($this->latest)) { |
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257 | $latest = fopen($this->latest, 'a+'); |
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258 | if (flock($latest, LOCK_EX)) { |
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259 | rewind($this->temp); |
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260 | stream_copy_to_stream($this->temp, $latest); |
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261 | flock($latest, LOCK_UN); |
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262 | if (file_exists($this->tempName)) { |
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263 | unlink($this->tempName); |
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264 | } |
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265 | } |
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266 | fclose($latest); |
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267 | fclose($this->temp); |
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268 | $this->temp = null; |
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269 | $this->tempName = null; |
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270 | } |
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271 | } |
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272 | |||
273 | /** |
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274 | * 删除已经压缩的文件 |
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275 | */ |
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276 | private function removePackFiles() |
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284 | } |
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285 | |||
286 | /** |
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287 | * 即时写入日志 |
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288 | */ |
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289 | public function write() |
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296 | } |
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297 | |||
298 | /** |
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299 | * 程序关闭时调用 |
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300 | */ |
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301 | public function shutdown() |
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307 | } |
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308 | |||
309 | /** |
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310 | * @param string $message |
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311 | * @param array $context |
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312 | * @return string |
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313 | */ |
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314 | public function interpolate(string $message, array $context) |
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326 | } |
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327 | } |
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328 |