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                <?php namespace EmailLog\Addon;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use EmailLog\Addon\Addon;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                defined( 'ABSPATH' ) || exit; // Exit if accessed directly.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Retrieve the list of add-ons and render them.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 2.0.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class AddonList { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	const API_URL = 'https://wpemaillog.com/edd-api/products/?category=addon';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	const CACHE_EXPIRY_IN_HRS = 12;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	const CACHE_KEY = 'el_addon_list';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Add-on list.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var Addon[]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $addons;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Create a list of add-ons.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param Addon[] $addons List of Add-ons. If not passed, they will be automatically loaded.  | 
            
                            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function __construct( $addons = null ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( null === $addons ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$addons = $this->get_addons();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->addons = $addons;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Setup page to render the list of add-ons.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function render() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<div class="el-container">  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<?php $this->render_addons(); ?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<div class="clear"></div>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		</div> <!-- .el-container -->  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Retrieve the list of add-ons by calling the store API.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return Addon[] List of add-ons, empty array if API call fails.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function get_addons() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( false === ( $addons = get_transient( self::CACHE_KEY ) ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$response = wp_remote_get( self::API_URL );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( is_wp_error( $response ) || ! is_array( $response ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				// TODO: Don't keep trying if the server is down.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				return array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$addons = $this->parse_response( wp_remote_retrieve_body( $response ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			if ( ! empty( $addons ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				set_transient( self::CACHE_KEY, $addons, self::CACHE_EXPIRY_IN_HRS * HOUR_IN_SECONDS );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return $addons;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Parse the response and get the list of add-on.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $response API Response.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return array List of Add-ons.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function parse_response( $response ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$json = json_decode( $response, true );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( ! is_array( $json ) || ! array_key_exists( 'products', $json ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return $this->build_addon_list( $json['products'] );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Build a list of Addon objects from products data array.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param array $products Products data array.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return Addon[] List of Addons.  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	protected function build_addon_list( $products ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$addons = array();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		foreach ( $products as $product ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$addon = new Addon( $product );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$addons[ $addon->slug ] = $addon;  | 
            
                            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		return $addons;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Render the add-on list or display an error if the list can't be retrieved.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function render_addons() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( empty( $this->addons ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$this->render_empty_list();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		foreach ( $this->addons as $addon ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$addon->render();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Display a notice if the list of add-on can't be retrieved.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected function render_empty_list() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<span class="el-addon-empty">  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				printf(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    131
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                					__( 'We are not able to retrieve the add-on list now. Please visit the <a href="%s">add-on page</a> to view the add-ons.', 'email-log' ), // @codingStandardsIgnoreLine  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					'https://wpemaillog.com/addons'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    133
                 | 
                                    
                                                     | 
                
                 | 
                				);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                			?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                		</span>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                		<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                	 * Get an add-on by slug.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                	 * @param string $slug Add-on slug.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                	 * @return bool|\EmailLog\Addon\Addon Add-on if found, False otherwise.  | 
            
                            
                    | 
                        
                     | 
                     | 
                     | 
                    
                                                                                                    
                        
                         
                                                                                        
                                                                                     
                     | 
                
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                	public function get_addon_by_slug( $slug ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                		if ( array_key_exists( $slug, $this->addons ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                			return $this->addons[ $slug ];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                		return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.