Total Complexity | 42 |
Total Lines | 208 |
Duplicated Lines | 0 % |
Changes | 11 | ||
Bugs | 0 | Features | 0 |
Complex classes like MysqlDumper 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 MysqlDumper, and based on these observations, apply Extract Interface, too.
1 | <?php |
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8 | class MysqlDumper extends Dumper |
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9 | { |
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10 | /*@var bool*/ |
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11 | protected $singleTransaction = false; |
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12 | /*@var bool*/ |
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13 | protected $skipLockTables = false; |
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14 | /*@var bool*/ |
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15 | protected $quick = false; |
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16 | /*@var bool*/ |
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17 | protected $skipComments = true; |
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18 | /*@var string*/ |
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19 | protected $defaultCharacterSet = ''; |
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20 | /*@var bool*/ |
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21 | protected $createTables = true; |
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22 | |||
23 | public function useSingleTransaction() |
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24 | { |
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25 | $this->singleTransaction = true; |
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26 | return $this; |
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27 | } |
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28 | public function useSkipLockTables() |
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29 | { |
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30 | $this->skipLockTables = true; |
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31 | return $this; |
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32 | } |
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33 | public function useQuick() |
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34 | { |
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35 | $this->quick = true; |
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36 | return $this; |
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37 | } |
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38 | public function doNotUseSkipComments() |
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39 | { |
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40 | $this->skipComments = false; |
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41 | return $this; |
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42 | } |
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43 | public function doNotUseCreateTables() |
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44 | { |
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45 | $this->createTables = false; |
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46 | return $this; |
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47 | } |
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48 | public function setDefaultCharacterSet(string $charecterSet) |
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49 | { |
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50 | $this->defaultCharacterSet = $charecterSet; |
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51 | return $this; |
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52 | } |
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53 | |||
54 | public function dump(string $destinationPath = "") |
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59 | } |
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60 | |||
61 | public function restore(string $restorePath = "") |
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62 | { |
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66 | } |
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67 | |||
68 | protected function prepareDumpCommand(string $credentialFile, string $destinationPath): string |
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69 | { |
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70 | $dumpCommand = sprintf( |
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71 | '%smysqldump %s %s %s %s %s %s %s %s %s %s %s', |
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72 | $this->dumpCommandPath, |
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73 | $this->prepareAuthentication($credentialFile), |
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74 | $this->prepareDatabase(), |
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75 | $this->prepareSocket(), |
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76 | $this->prepareSkipComments(), |
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77 | $this->prepareCreateTables(), |
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78 | $this->prepareSingleTransaction(), |
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79 | $this->prepareSkipLockTables(), |
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80 | $this->prepareQuick(), |
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81 | $this->prepareDefaultCharSet(), |
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82 | $this->prepareIncludeTables(), |
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83 | $this->prepareIgnoreTables() |
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84 | ); |
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85 | |||
86 | if ($this->isCompress) { |
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87 | |||
88 | return "{$dumpCommand} | {$this->compressBinaryPath}{$this->compressCommand} > {$destinationPath}{$this->compressExtension}"; |
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89 | } |
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90 | |||
91 | return "{$dumpCommand} > {$destinationPath}"; |
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92 | } |
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93 | |||
94 | protected function prepareRestoreCommand(string $credentialFile, string $filePath): string |
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95 | { |
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96 | $restoreCommand = sprintf("%smysql %s %s", |
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97 | $this->dumpCommandPath, |
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98 | $this->prepareAuthentication($credentialFile), |
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99 | $this->prepareDatabase() |
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100 | ); |
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101 | |||
102 | if ($this->isCompress) { |
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103 | |||
104 | return "{$this->compressBinaryPath}{$this->compressCommand} < {$filePath} | {$restoreCommand}"; |
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105 | } |
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106 | |||
107 | return "{$restoreCommand} < {$filePath}"; |
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108 | } |
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109 | |||
110 | protected function runCommand($filePath, $action) |
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111 | { |
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112 | try { |
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113 | |||
114 | $credentials = $this->getCredentials(); |
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115 | $this->tempFile = tempnam(sys_get_temp_dir(), 'mysqlpass'); |
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116 | $handler = fopen($this->tempFile, 'r+'); |
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117 | fwrite($handler, $credentials); |
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118 | |||
119 | if ($action == 'dump') { |
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120 | $this->command = preg_replace('/\s+/', ' ', $this->prepareDumpCommand($this->tempFile, $filePath)); |
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121 | } |
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122 | |||
123 | if ($action == 'restore') { |
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124 | $this->command = preg_replace('/\s+/', ' ', $this->prepareRestoreCommand($this->tempFile, $filePath)); |
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125 | } |
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126 | |||
127 | $process = $this->prepareProcessCommand(); |
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128 | |||
129 | if ($this->debug) { |
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130 | $process->mustRun(); |
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131 | } else { |
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132 | $process->run(); |
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133 | } |
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134 | |||
135 | fclose($handler); |
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136 | unlink($this->tempFile); |
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137 | |||
138 | } catch (ProcessFailedException $e) { |
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139 | throw new \Exception($e->getMessage()); |
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140 | |||
141 | } |
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142 | } |
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143 | |||
144 | protected function getCredentials() |
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145 | { |
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146 | $contents = [ |
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147 | '[client]', |
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148 | "user = '{$this->username}'", |
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149 | "password = '{$this->password}'", |
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150 | "host = '{$this->host}'", |
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151 | "port = '{$this->port}'", |
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152 | ]; |
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153 | return implode(PHP_EOL, $contents); |
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154 | } |
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155 | |||
156 | public function prepareDatabase() |
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157 | { |
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158 | return $this->dbName; |
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159 | } |
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160 | |||
161 | public function prepareIncludeTables() |
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162 | { |
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163 | $includeTables = (count($this->tables) > 0) ? implode(' ', $this->tables) : ""; |
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164 | $includeTablesArg = !empty($includeTables) ? '--tables ' . $includeTables : ''; |
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165 | return $includeTablesArg; |
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166 | } |
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167 | |||
168 | public function prepareIgnoreTables() |
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169 | { |
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170 | $ignoreTablesArgs = []; |
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171 | foreach ($this->ignoreTables as $tableName) { |
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172 | $ignoreTablesArgs[] = "--ignore-table={$databaseArg}.{$tableName}"; |
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173 | } |
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174 | $ignoreTablesArg = (count($ignoreTablesArgs) > 0) ? implode(' ', $ignoreTablesArgs) : ''; |
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175 | return $ignoreTablesArg; |
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176 | } |
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177 | |||
178 | public function prepareSingleTransaction() |
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179 | { |
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180 | return $this->singleTransaction ? "--single-transaction" : ""; |
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181 | } |
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182 | |||
183 | public function prepareSkipLockTables() |
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184 | { |
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185 | return $this->skipLockTables ? "--skip-lock-tables" : ""; |
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186 | } |
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187 | |||
188 | public function prepareQuick() |
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189 | { |
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190 | return $this->quick ? "--quick" : ""; |
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191 | } |
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192 | |||
193 | public function prepareCreateTables() |
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194 | { |
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195 | return !$this->createTables ? '--no-create-info' : ''; |
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196 | } |
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197 | |||
198 | public function prepareSkipComments() |
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199 | { |
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200 | return $this->skipComments ? '--skip-comments' : ''; |
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201 | } |
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202 | |||
203 | public function prepareSocket() |
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206 | } |
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207 | |||
208 | public function prepareDefaultCharSet() |
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209 | { |
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210 | return ($this->defaultCharacterSet !== '') ? "--default-character-set={$this->defaultCharacterSet}" : ''; |
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211 | } |
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212 | |||
213 | public function prepareAuthentication(string $credentialFile) |
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216 | } |
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217 | } |
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218 |