Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like AzineNotifierService often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use AzineNotifierService, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 17 | class AzineNotifierService implements NotifierServiceInterface |
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| 18 | { |
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| 19 | /** |
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| 20 | * Override this function to fill in any non-recipient-specific parameters that are required to |
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| 21 | * render the notifications-template or one of the notification-item-templates that |
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| 22 | * are rendered into the notifications-template |
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| 23 | * |
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| 24 | * @return array |
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| 25 | */ |
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| 26 | 3 | protected function getVarsForNotificationsEmail() |
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| 32 | |||
| 33 | /** |
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| 34 | * Override this function to fill in any recipient-specific parameters that are required to |
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| 35 | * render the notifications-template or one of the notification-item-templates that |
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| 36 | * are rendered into the notifications-template |
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| 37 | * |
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| 38 | * @param RecipientInterface $recipient |
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| 39 | * @return array |
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| 40 | */ |
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| 41 | 2 | protected function getRecipientVarsForNotificationsEmail(RecipientInterface $recipient) |
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| 49 | |||
| 50 | /** |
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| 51 | * Get the subject for the notifications-email to send. Override this function to implement your custom subject-lines. |
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| 52 | * @param array of array $contentItems |
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| 53 | * @param RecipientInterface $recipient |
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| 54 | * @return string |
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| 55 | */ |
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| 56 | 2 | public function getRecipientSpecificNotificationsSubject($contentItems, RecipientInterface $recipient) |
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| 69 | |||
| 70 | /** |
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| 71 | * Override this function to fill in any non-recipient-specific parameters that are required |
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| 72 | * to render the newsletter-template and are not provided by the TemplateProvider. e.g. the total number of recipients of this newsletter |
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| 73 | * |
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| 74 | * @return array |
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| 75 | */ |
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| 76 | 1 | protected function getGeneralVarsForNewsletter() |
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| 83 | |||
| 84 | /** |
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| 85 | * Override this function to fill in any non-recipient-specific content items that are the same |
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| 86 | * for all recipients of the newsletter. |
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| 87 | * |
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| 88 | * E.g. a list of featured events or news-articles. |
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| 89 | * |
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| 90 | * @return array of templatesIds (without ending) as key and params to render the template as value. => array('AzineEmailBundle:contentItem:message' => array('notification => $someNotification, 'goToUrl' => 'http://example.com', ...)); |
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| 91 | */ |
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| 92 | protected function getNonRecipientSpecificNewsletterContentItems() |
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| 101 | |||
| 102 | /** |
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| 103 | * Override this function to add more parameters that are required to render the newsletter template. |
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| 104 | * @param RecipientInterface $recipient |
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| 105 | * @return array |
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| 106 | */ |
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| 107 | 2 | public function getRecipientSpecificNewsletterParams(RecipientInterface $recipient) |
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| 111 | |||
| 112 | /** |
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| 113 | * Override this function to fill in any recipient-specific content items that are different |
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| 114 | * depending on the recipient of the newsletter. |
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| 115 | * |
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| 116 | * E.g. a list of the recipients latest activites. |
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| 117 | * |
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| 118 | * @param RecipientInterface $recipient |
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| 119 | * @return array of arrays with templatesIds (without ending) as key and params to render the template as value. |
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| 120 | * => array( |
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| 121 | * array('AzineEmailBundle:contentItem:message' => array('notification => $someNotification1, 'goToUrl' => 'http://example.com/1', ...)) |
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| 122 | * array('AzineEmailBundle:contentItem:message' => array('notification => $someNotification2, 'goToUrl' => 'http://example.com/2', ...)) |
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| 123 | * ); |
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| 124 | */ |
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| 125 | protected function getRecipientSpecificNewsletterContentItems(RecipientInterface $recipient) |
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| 135 | |||
| 136 | /** |
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| 137 | * Override this function to use a custom subject line for each newsletter-recipient. |
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| 138 | * |
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| 139 | * @param $generalContentItems array of content items. => e.g. array of array('templateID' => array('notification => $someNotification, 'goToUrl' => 'http://example.com', ...)) |
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| 140 | * @param $recipientContentItems array of content items. => e.g. array of array('templateID' => array('notification => $someNotification, 'goToUrl' => 'http://example.com', ...)) |
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| 141 | * @param $params array the array with all general template-params, including the item with the key 'subject' containing the default-subject |
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| 142 | * @param $recipient RecipientInterface |
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| 143 | * @param $locale string The language-code for translation of the subject |
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| 144 | * @return the subject line |
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| 145 | */ |
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| 146 | 1 | public function getRecipientSpecificNewsletterSubject(array $generalContentItems, array $recipientContentItems, array $params, RecipientInterface $recipient, $locale) |
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| 150 | |||
| 151 | /** |
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| 152 | * By overriding this function you can rearrange the content items to you liking. By default no ordering is done, so the order is as follows: |
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| 153 | * |
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| 154 | * - all user-specific content items as returned by AzineNotifierService::getRecipientSpecificNewsletterContentItems |
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| 155 | * - all non-user-specific content items as returned by AzineNotifierService::getNonRecipientSpecificNewsletterContentItems |
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| 156 | * |
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| 157 | * @param array $contentItems |
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| 158 | * @return array |
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| 159 | */ |
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| 160 | 2 | public function orderContentItems(array $contentItems){ |
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| 163 | |||
| 164 | /** |
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| 165 | * Over ride this constructor if you need to inject more dependencies to get all the data together that you need for your newsletter/notifications. |
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| 166 | * |
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| 167 | * @param TemplateTwigSwiftMailerInterface $mailer |
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| 168 | * @param \Twig_Environment $twig |
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| 169 | * @param Logger $logger |
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| 170 | * @param UrlGeneratorInterface $router |
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| 171 | * @param ManagerRegistry $managerRegistry |
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| 172 | * @param TemplateProviderInterface $templateProvider |
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| 173 | * @param RecipientProviderInterface $recipientProvider |
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| 174 | * @param Translator $translatorService |
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| 175 | * @param array $parameters |
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| 176 | */ |
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| 177 | 8 | public function __construct(TemplateTwigSwiftMailerInterface $mailer, \Twig_Environment $twig, Logger $logger, UrlGeneratorInterface $router, |
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| 191 | |||
| 192 | ////////////////////////////////////////////////////////////////////////// |
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| 193 | /* You probably don't need to change or override any of the stuff below */ |
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| 194 | ////////////////////////////////////////////////////////////////////////// |
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| 195 | |||
| 196 | const CONTENT_ITEMS = 'contentItems'; |
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| 197 | /** |
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| 198 | * @var TemplateTwigSwiftMailerInterface |
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| 199 | */ |
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| 200 | protected $mailer; |
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| 201 | |||
| 202 | /** |
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| 203 | * @var \Twig_Environment |
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| 204 | */ |
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| 205 | protected $twig; |
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| 206 | |||
| 207 | /** |
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| 208 | * @var Logger |
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| 209 | */ |
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| 210 | protected $logger; |
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| 211 | |||
| 212 | /** |
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| 213 | * @var UrlGeneratorInterface |
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| 214 | */ |
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| 215 | protected $router; |
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| 216 | |||
| 217 | /** |
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| 218 | * @var TemplateProviderInterface |
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| 219 | */ |
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| 220 | protected $templateProvider; |
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| 221 | |||
| 222 | /** |
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| 223 | * @var RecipientProviderInterface |
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| 224 | */ |
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| 225 | protected $recipientProvider; |
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| 226 | |||
| 227 | /** |
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| 228 | * @var ManagerRegistry |
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| 229 | */ |
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| 230 | protected $managerRegistry; |
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| 231 | |||
| 232 | /** |
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| 233 | * Array of configuration-parameters from the config.yml |
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| 234 | * @var array |
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| 235 | */ |
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| 236 | protected $configParameter; |
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| 237 | |||
| 238 | /** |
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| 239 | * The translator |
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| 240 | * @var Translator |
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| 241 | */ |
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| 242 | protected $translatorService; |
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| 243 | |||
| 244 | /** |
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| 245 | * Get the number of seconds in a "one-hour-interval" |
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| 246 | * @return integer of seconds to consider as an hour. |
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| 247 | */ |
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| 248 | 4 | protected function getHourInterval() |
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| 256 | |||
| 257 | /** |
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| 258 | * Get the number of seconds in a "one-day-interval" |
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| 259 | * @return integer of seconds to consider as a day. |
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| 260 | */ |
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| 261 | 3 | protected function getDayInterval() |
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| 269 | |||
| 270 | /** |
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| 271 | * (non-PHPdoc) |
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| 272 | * @see Azine\EmailBundle\Services.NotifierServiceInterface::sendNotifications() |
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| 273 | */ |
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| 274 | 3 | public function sendNotifications(array &$failedAddresses) |
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| 303 | |||
| 304 | /** |
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| 305 | * Send the notifications-email for one recipient |
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| 306 | * @param integer $recipientId |
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| 307 | * @param string $wrapperTemplateName |
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| 308 | * @param array $params array of parameters for this recipient |
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| 309 | * @return null|string or the failed email addressess |
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| 310 | */ |
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| 311 | 3 | public function sendNotificationsFor($recipientId, $wrapperTemplateName, $params) |
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| 364 | |||
| 365 | /** |
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| 366 | * (non-PHPdoc) |
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| 367 | * @see Azine\EmailBundle\Services.NotifierServiceInterface::sendNewsletter() |
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| 368 | */ |
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| 369 | 2 | public function sendNewsletter(array &$failedAddresses) |
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| 395 | |||
| 396 | /** |
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| 397 | * Send the newsletter for one recipient |
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| 398 | * @param integer $recipientId |
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| 399 | * @param array $params params and contentItems that are the same for all recipients |
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| 400 | * @param string $wrapperTemplate |
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| 401 | * @return string|null or the failed email addressess |
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| 402 | */ |
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| 403 | 2 | public function sendNewsletterFor($recipientId, array $params, $wrapperTemplate) |
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| 439 | |||
| 440 | /** |
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| 441 | * Get the Notifications that have not yet been sent yet. |
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| 442 | * Ordered by "template" and "title". |
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| 443 | * @param RecipientInterface $recipient |
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| 444 | * @return array of Notification |
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| 445 | */ |
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| 446 | 3 | protected function getNotificationsFor(RecipientInterface $recipient) |
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| 483 | |||
| 484 | /** |
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| 485 | * Get all IDs for Recipients of pending notifications |
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| 486 | * @return array of IDs |
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| 487 | */ |
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| 488 | 3 | protected function getNotificationRecipientIds() |
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| 492 | |||
| 493 | /** |
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| 494 | * Update (set sent = now) and save the notifications |
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| 495 | * @param array $notifications |
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| 496 | */ |
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| 497 | 2 | protected function setNotificationsAsSent(array $notifications) |
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| 505 | |||
| 506 | /** |
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| 507 | * Mark all Notifications as sent long ago, as the recipient never want's to get any notifications. |
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| 508 | * @param RecipientInterface $recipient |
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| 509 | */ |
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| 510 | 1 | protected function markAllNotificationsAsSentFarInThePast(RecipientInterface $recipient) |
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| 514 | |||
| 515 | /** |
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| 516 | * Get the interval in days between newsletter mailings |
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| 517 | */ |
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| 518 | 1 | protected function getNewsletterInterval() |
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| 522 | |||
| 523 | /** |
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| 524 | * Get the time of the day when the newsletter should be sent. |
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| 525 | * @return string Time of the day in the format HH:mm |
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| 526 | */ |
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| 527 | 1 | protected function getNewsletterSendTime() |
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| 531 | |||
| 532 | /** |
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| 533 | * Get the DateTime at which the last newsletter mailing probably has taken place, if a newsletter is sent today. |
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| 534 | * (Calculated: send-time-today - interval in days) |
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| 535 | * @return \DateTime |
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| 536 | */ |
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| 537 | 1 | protected function getDateTimeOfLastNewsletter() |
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| 541 | |||
| 542 | /** |
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| 543 | * Get the DateTime at which the next newsletter mailing will take place, if a newsletter is sent today. |
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| 544 | * (Calculated: send-time-today + interval in days) |
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| 545 | */ |
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| 546 | 1 | protected function getDateTimeOfNextNewsletter() |
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| 550 | |||
| 551 | /** |
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| 552 | * Convenience-function to add and save a Notification-entity |
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| 553 | * |
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| 554 | * @param integer $recipientId the ID of the recipient of this notification => see RecipientProvider.getRecipient($id) |
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| 555 | * @param string $title the title of the notification. depending on the recipients settings, multiple notifications are sent in one email. |
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| 556 | * @param string $content the content of the notification |
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| 557 | * @param string $template the twig-template to render the notification with |
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| 558 | * @param array $templateVars the parameters used in the twig-template, 'notification' => Notification and 'recipient' => RecipientInterface will be added to this array when rendering the twig-template. |
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| 559 | * @param integer $importance important messages are at the top of the notification-emails, un-important at the bottom. |
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| 560 | * @param boolean $sendImmediately whether or not to ignore the recipients mailing-preference and send the notification a.s.a.p. |
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| 561 | * @return Notification |
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| 562 | */ |
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| 563 | 2 | public function addNotification($recipientId, $title, $content, $template, $templateVars, $importance, $sendImmediately) |
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| 578 | |||
| 579 | /** |
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| 580 | * Convenience-function to add and save a Notification-entity for a message => see AzineTemplateProvider::CONTENT_ITEM_MESSAGE_TYPE |
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| 581 | * |
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| 582 | * The following default are used: |
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| 583 | * $importance = NORMAL |
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| 584 | * $sendImmediately = fale |
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| 585 | * $template = template for type AzineTemplateProvider::CONTENT_ITEM_MESSAGE_TYPE |
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| 586 | * $templateVars = only those from the template-provider |
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| 587 | * |
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| 588 | * @param integer $recipientId |
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| 589 | * @param string $title |
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| 590 | * @param string $content nl2br will be applied in the html-version of the email |
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| 591 | * @param string $goToUrl if this is supplied, a link "Go to message" will be added. |
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| 592 | */ |
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| 593 | 1 | public function addNotificationMessage($recipientId, $title, $content, $goToUrl = null) |
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| 602 | |||
| 603 | |||
| 604 | /** |
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| 605 | * @return NotificationRepository |
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| 606 | */ |
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| 607 | 4 | protected function getNotificationRepository(){ |
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| 610 | |||
| 611 | } |
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| 612 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.