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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * \AppserverIo\Collections\HashMap  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * NOTICE OF LICENSE  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This source file is subject to the Open Software License (OSL 3.0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * that is available through the world-wide-web at this URL:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * http://opensource.org/licenses/osl-3.0.php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * PHP version 5  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author    Tim Wagner <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2015 TechDivision GmbH <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      https://github.com/appserver-io/collections  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      http://www.appserver.io  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace AppserverIo\Collections;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\Strng;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\Integer;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\Flt;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\Boolean;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\NullPointerException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use \AppserverIo\Lang\ClassCastException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This class is the implementation of a HashMap.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author    Tim Wagner <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright 2015 TechDivision GmbH <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      https://github.com/appserver-io/collections  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @link      http://www.appserver.io  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                class HashMap extends AbstractMap  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Standard constructor that adds the array passed  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * as parameter to the internal member variable.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param array $items An array to initialize the HashMap  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @throws \AppserverIo\Lang\ClassCastException Is thrown if the passed parameter is not of type array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                    public function __construct($items = array())  | 
            
                            
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                        // parent constructor to ensure property preset  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        parent::__construct();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // check if NULL is passed, is yes, to nothing  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_null($items)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // check if an array is passed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_array($items)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // initialize the HashMap with the values of the passed array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            foreach ($items as $key => $item) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $this->add($key, $item);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // if not a array is passed throw an exception  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        throw new ClassCastException('Passed object is not an array'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * This method adds the passed object with the passed key  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * to the HashMap.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param mixed $key    The key to add the passed value under  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param mixed $object The object to add to the HashMap  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return \AppserverIo\Collections\HashMap The instance  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @throws \AppserverIo\Collections\InvalidKeyException Is thrown if the passed key is NOT an primitive datatype  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @throws \AppserverIo\Lang\NullPointerException Is thrown if the passed key is null or not a flat datatype like Integer, Strng, Double or Boolean  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function add($key, $object)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_null($key)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new NullPointerException('Passed key is null'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // check if a primitive datatype is passed  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                        if (is_integer($key) || is_string($key) || is_double($key) || is_bool($key)) { | 
            
                            
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                            // add the item to the array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->items[$key] = $object;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // and return  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // check if an object is passed  | 
            
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
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                        if (is_object($key)) { | 
            
                            
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                            if ($key instanceof Strng) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $newKey = $key->stringValue();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif ($key instanceof Flt) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $newKey = $key->floatValue();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif ($key instanceof Integer) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $newKey = $key->intValue();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif ($key instanceof Boolean) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $newKey = $key->booleanValue();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } elseif (method_exists($key, '__toString')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $newKey = $key->__toString();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                throw new InvalidKeyException('Passed key has to be a primitive datatype or  has to implement the __toString() method'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // add the item to the array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->items[$newKey] = $object;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            // and return  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        throw new InvalidKeyException('Passed key has to be a primitive datatype or  has to implement the __toString() method'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * This method Returns a new HashMap initialized with the  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * passed array.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param array $array Holds the array to initialize the new HashMap  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return \AppserverIo\Collections\HashMap Returns a HashMap initialized with the passed array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @throws \AppserverIo\Lang\ClassCastException Is thrown if the passed object is not an array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function fromArray($array)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // check if the passed object is an array and set it  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_array($array)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                                     | 
                
                 | 
                            return new HashMap($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    131
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    132
                 | 
                                    
                                                     | 
                
                 | 
                        // throw an exception if the passed object is not an array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                        throw new ClassCastException('Passed object is not an array'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
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.