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1 | <?php |
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2 | |||
3 | namespace BsbDoctrineReconnect\DBAL; |
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4 | |||
5 | use BsbDoctrineReconnect\DBAL\Driver as DriverInterface; |
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6 | use Doctrine\Common\EventManager; |
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7 | use Doctrine\DBAL\Cache\QueryCacheProfile; |
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8 | use Doctrine\DBAL\Configuration; |
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9 | use Doctrine\DBAL\Connection as DBALConnection; |
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10 | use Doctrine\DBAL\DBALException; |
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11 | use Doctrine\DBAL\Driver\Connection as DriverConnection; |
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12 | use Doctrine\DBAL\Driver\PDOMySql\Driver as DBALDriver; |
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13 | |||
14 | /** |
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15 | * Class Connection |
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16 | * |
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17 | * @package BsbDoctrineReconnect\DBAL |
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18 | */ |
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19 | class Connection extends DBALConnection implements DriverConnection |
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20 | { |
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21 | /** |
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22 | * @var int |
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23 | */ |
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24 | protected $reconnectAttempts = 0; |
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25 | |||
26 | /** |
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27 | * {@inheritdoc} |
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28 | */ |
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29 | public function __construct( |
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30 | array $params, |
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31 | DBALDriver $driver, |
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32 | Configuration $config = null, |
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33 | EventManager $eventManager = null |
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34 | ) { |
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35 | if ($driver instanceof DriverInterface) { |
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36 | if (count($driver->getReconnectExceptions()) && isset($params['driverOptions']['x_reconnect_attempts'])) { |
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37 | $this->reconnectAttempts = (int) $params['driverOptions']['x_reconnect_attempts']; |
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38 | } |
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39 | } |
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40 | |||
41 | parent::__construct($params, $driver, $config, $eventManager); |
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42 | } |
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43 | |||
44 | /** |
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45 | * {@inheritdoc} |
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46 | */ |
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47 | public function executeQuery($query, array $params = [], $types = [], QueryCacheProfile $qcp = null) |
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48 | { |
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49 | $stmt = null; |
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50 | $attempt = 0; |
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51 | $retry = true; |
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52 | while ($retry) { |
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53 | $retry = false; |
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54 | try { |
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55 | $stmt = parent::executeQuery($query, $params, $types); |
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56 | } catch (DBALException $e) { |
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57 | error_log(""); |
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58 | error_log(" ,--.!,"); |
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59 | error_log(" __/ -*-"); |
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60 | error_log(" ,d08b. '|`"); |
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61 | error_log(" 0088MM"); |
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62 | error_log(" `9MMP'"); |
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63 | error_log(""); |
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64 | |||
65 | |||
66 | error_log("DBAL EXCEPTION THROWN"); |
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67 | error_log("â”” txn nesting level: " . $this->getTransactionNestingLevel()); |
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68 | error_log(" â”” error: " . $e->getMessage()); |
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69 | error_log(""); |
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70 | |||
71 | if ($this->validateReconnectAttempt($e, $attempt)) { |
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72 | error_log(" â”” OK - successfully validated"); |
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73 | $this->close(); |
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74 | $attempt++; |
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75 | |||
76 | if ($this->_driver->shouldStall($e)) { |
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77 | error_log(" ├ waitstate deemed beneficial, sleeping 5 seconds..."); |
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78 | sleep(5); |
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79 | } |
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80 | |||
81 | sleep(1); |
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82 | $retry = true; |
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83 | } else { |
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84 | error_log(" â”” FAIL - could not be validated"); |
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85 | throw $e; |
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86 | } |
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87 | } |
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88 | } |
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89 | |||
90 | return $stmt; |
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91 | } |
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92 | |||
93 | /** |
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94 | * {@inheritdoc} |
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95 | */ |
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96 | public function query() |
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97 | { |
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98 | $stmt = null; |
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99 | $args = func_get_args(); |
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100 | $attempt = 0; |
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101 | $retry = true; |
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102 | while ($retry) { |
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103 | $retry = false; |
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104 | try { |
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105 | // max arguments is 4 -> anything is better then calling call_user_func_array()! |
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106 | switch (count($args)) { |
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107 | case 1: |
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108 | $stmt = parent::query($args[0]); |
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109 | break; |
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110 | case 2: |
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111 | $stmt = parent::query($args[0], $args[1]); |
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112 | break; |
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113 | View Code Duplication | case 3: |
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0 ignored issues
–
show
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114 | $stmt = parent::query($args[0], $args[1], $args[2]); |
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115 | break; |
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116 | View Code Duplication | case 4: |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. ![]() |
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117 | $stmt = parent::query($args[0], $args[1], $args[2], $args[3]); |
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118 | break; |
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119 | default: |
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120 | $stmt = parent::query(); |
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121 | } |
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122 | } catch (DBALException $e) { |
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123 | View Code Duplication | if ($this->validateReconnectAttempt($e, $attempt)) { |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. ![]() |
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124 | $this->close(); |
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125 | $attempt++; |
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126 | sleep(1); |
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127 | $retry = true; |
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128 | } else { |
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129 | throw $e; |
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130 | } |
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131 | } |
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132 | } |
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133 | |||
134 | return $stmt; |
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135 | } |
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136 | |||
137 | /** |
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138 | * {@inheritdoc} |
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139 | */ |
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140 | public function executeUpdate($query, array $params = [], array $types = []) |
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141 | { |
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142 | $stmt = null; |
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143 | $attempt = 0; |
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144 | $retry = true; |
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145 | while ($retry) { |
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146 | $retry = false; |
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147 | try { |
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148 | $stmt = parent::executeUpdate($query, $params, $types); |
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149 | } catch (DBALException $e) { |
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150 | View Code Duplication | if ($this->validateReconnectAttempt($e, $attempt)) { |
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0 ignored issues
–
show
This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. ![]() |
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151 | $this->close(); |
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152 | $attempt++; |
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153 | sleep(1); |
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154 | $retry = true; |
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155 | } else { |
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156 | throw $e; |
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157 | } |
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158 | } |
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159 | } |
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160 | |||
161 | return $stmt; |
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162 | } |
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163 | |||
164 | /** |
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165 | * {@inheritdoc} |
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166 | */ |
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167 | public function prepare($sql) |
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168 | { |
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169 | return $this->prepareWrapped($sql); |
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170 | } |
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171 | |||
172 | /** |
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173 | * @param string $sql |
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174 | * @return Statement |
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175 | */ |
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176 | protected function prepareWrapped($sql) |
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177 | { |
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178 | // returns a reconnect-wrapper for Statements |
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179 | return new Statement($sql, $this); |
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180 | } |
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181 | |||
182 | /** |
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183 | * do not use, only used by Statement-class |
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184 | * |
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185 | * needs to be public for access from the Statement-class |
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186 | * |
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187 | * @deprecated |
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188 | * @param string $sql |
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189 | */ |
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190 | public function prepareUnwrapped($sql) |
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191 | { |
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192 | // returns the actual statement |
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193 | return parent::prepare($sql); |
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194 | } |
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195 | |||
196 | /** |
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197 | * @param DBALException $e |
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198 | * @param integer $attempt |
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199 | * @return bool |
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200 | */ |
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201 | public function validateReconnectAttempt(DBALException $e, $attempt) |
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202 | { |
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203 | if ($this->getTransactionNestingLevel()) { |
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204 | return false; |
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205 | } |
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206 | |||
207 | if ($this->reconnectAttempts && $attempt < $this->reconnectAttempts) { |
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208 | $reconnectExceptions = $this->_driver->getReconnectExceptions(); |
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209 | $message = $e->getMessage(); |
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210 | |||
211 | if (!empty($reconnectExceptions)) { |
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212 | foreach ($reconnectExceptions as $reconnectException) { |
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213 | if (strpos($message, $reconnectException) !== false) { |
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214 | return true; |
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215 | } |
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216 | } |
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217 | } |
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218 | } |
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219 | |||
220 | return false; |
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221 | } |
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222 | } |
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223 |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.