| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * TechDivision\Import\RowTrait | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * NOTICE OF LICENSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * This source file is subject to the Open Software License (OSL 3.0) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * that is available through the world-wide-web at this URL: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * http://opensource.org/licenses/osl-3.0.php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * PHP version 5 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * @author    Tim Wagner <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @copyright 2016 TechDivision GmbH <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @link      https://github.com/techdivision/import | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @link      http://www.techdivision.com | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | namespace TechDivision\Import; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  * A trait that provides row handling. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  * @author    Tim Wagner <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  * @copyright 2016 TechDivision GmbH <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  * @link      https://github.com/techdivision/import | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  * @link      http://www.techdivision.com | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | trait RowTrait | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * The actual row, that has to be processed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     protected $row = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * The flag that stop's overserver execution on the actual row. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * @var boolean | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     protected $skipRow = false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * The number of rows that has been skipped. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * @var integer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     protected $skippedRows = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * Stop's observer execution on the actual row. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * @param boolean $skip The flag to skip row exection or not | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 | 1 |  |     public function skipRow($skip = true) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         // raise the counter for the skipped rows | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 | 1 |  |         if ($skip === true) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 | 1 |  |             $this->skippedRows++; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         // set the the flag to signal the row has been skipped | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 | 1 |  |         $this->skipRow = $skip; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 | 1 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * Query's whether or not the observer execution for the given row has to be skipped. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |      * @return boolean TRUE if the observer execution has to be skipped, else FALSE | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 79 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |     public function rowHasToBeSkipped() | 
            
                                                                        
                            
            
                                    
            
            
                | 81 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 82 |  |  |         return $this->skipRow; | 
            
                                                                        
                            
            
                                    
            
            
                | 83 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * Set's the actual row, that has to be processed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * @param array $row The row | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 | 10 |  |     public function setRow(array $row) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 | 10 |  |         $this->row = $row; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 | 10 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |      * Return's the actual row. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      * @return array The actual row | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 | 14 |  |     public function getRow() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 | 14 |  |         return $this->row; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * Query whether or not a value for the column with the passed name exists. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      * @param string $name The column name to query for a valid value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |      * @return boolean TRUE if the value is set, else FALSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 | 2 |  |     public function hasValue($name) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |         // query whether or not the header is available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 | 2 |  |         if ($this->hasHeader($name)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |             // load the key for the row | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 | 1 |  |             $headerValue = $this->getHeader($name); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |             // query whether the rows column has a vaild value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 | 1 |  |             return (isset($this->row[$headerValue]) && $this->row[$headerValue] !== ''); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |         // return FALSE if not | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 | 1 |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |      * Set the value in the passed column name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |      * @param string $name  The column name to set the value for | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |      * @param mixed  $value The value to set | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 | 4 |  |     protected function setValue($name, $value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 | 4 |  |         $this->row[$this->getHeader($name)] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 | 4 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |      * Resolve's the value with the passed colum name from the actual row. If a callback will | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      * be passed, the callback will be invoked with the found value as parameter. If | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |      * the value is NULL or empty, the default value will be returned. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * @param string        $name     The name of the column to return the value for | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * @param mixed|null    $default  The default value, that has to be returned, if the row's value is empty | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      * @param callable|null $callback The callback that has to be invoked on the value, e. g. to format it | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * @return mixed|null The, almost formatted, value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 | 15 |  |     public function getValue($name, $default = null, callable $callback = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         // initialize the value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 | 15 |  |         $value = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |         // query whether or not the header is available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 | 15 |  |         if ($this->hasHeader($name)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |             // load the header value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 | 7 |  |             $headerValue = $this->getHeader($name); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |             // query wheter or not, the value with the requested key is available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 | 7 |  |             if ((isset($this->row[$headerValue]) && $this->row[$headerValue] !== '')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 | 7 |  |                 $value = $this->row[$headerValue]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |         // query whether or not, a callback has been passed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 | 15 |  |         if ($value != null && is_callable($callback)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 | 1 |  |             $value = call_user_func($callback, $value); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |         // query whether or not | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 | 15 |  |         if ($value == null && $default !== null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 | 1 |  |             $value = $default; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         // return the value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 | 15 |  |         return $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      * Return's the number of skipped rows. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |      * @return int The number of skipped rows | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 | 4 |  |     public function getSkippedRows() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 | 4 |  |         return $this->skippedRows; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |      * This method queries whether or not  the column with the passed name is available or | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |      * not. This  method uses the `isset()` function to make sure the column is available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |      * and has not been removed somehow before, because it has an empty value for example. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |      * @param string $name The name of the column to query for | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |      * @return boolean TRUE if the columen is available, FALSE otherwise | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |     public function hasColumn(string $name) : bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         // query whether or not the header is available, if yes try | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |         // to load the key and query whether the column is available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |         if ($this->hasHeader($name)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |             return isset($this->row[$this->getHeader($name)]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |         // return FALSE if not | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |         return false; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |      * Queries whether or not the header with the passed name is available. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |      * @param string $name The header name to query | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |      * @return boolean TRUE if the header is available, else FALSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |     abstract public function hasHeader($name); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |      * Return's the header value for the passed name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |      * @param string $name The name of the header to return the value for | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |      * @return mixed The header value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |      * @throws \InvalidArgumentException Is thrown, if the header with the passed name is NOT available | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |     abstract public function getHeader($name); | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 234 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 235 |  |  |  |