Conditions | 1 |
Paths | 1 |
Total Lines | 119 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | <?php |
||
186 | protected function getQueueNode() |
||
187 | { |
||
188 | $treeBuilder = new TreeBuilder('queues'); |
||
189 | |||
190 | $node = $treeBuilder->getRootNode(); |
||
191 | |||
192 | $queuesInfo = <<<'EOF' |
||
193 | Example for using RabbitMQ |
||
194 | - { queue: myQueue, recover: true, default: false, routing_key: the_routing_key, dead_letter_exchange: 'my.dead.letter.exchange' } |
||
195 | - { queue: catchall, default: true } |
||
196 | |||
197 | Example for using Doctrine |
||
198 | - { queue: sonata_page, types: [sonata.page.create_snapshot, sonata.page.create_snapshots] } |
||
199 | - { queue: catchall, default: true } |
||
200 | EOF; |
||
201 | |||
202 | $routingKeyInfo = <<<'EOF' |
||
203 | Only used by RabbitMQ |
||
204 | |||
205 | Direct exchange with routing_key |
||
206 | EOF; |
||
207 | |||
208 | $recoverInfo = <<<'EOF' |
||
209 | Only used by RabbitMQ |
||
210 | |||
211 | If set to true, the consumer will respond with a `basic.recover` when an exception occurs, |
||
212 | otherwise it will not respond at all and the message will be unacknowledged |
||
213 | EOF; |
||
214 | |||
215 | $deadLetterExchangeInfo = <<<'EOF' |
||
216 | Only used by RabbitMQ |
||
217 | |||
218 | If is set, failed messages will be rejected and sent to this exchange |
||
219 | EOF; |
||
220 | |||
221 | $deadLetterRoutingKeyInfo = <<<'EOF' |
||
222 | Only used by RabbitMQ |
||
223 | |||
224 | If set, failed messages will be routed to the queue using this key by dead-letter-exchange, |
||
225 | otherwise it will be requeued to the original queue if `dead-letter-exchange` is set. |
||
226 | |||
227 | If set, the queue must be configured with this key as `routing_key`. |
||
228 | EOF; |
||
229 | |||
230 | $ttlInfo = <<<'EOF' |
||
231 | Only used by RabbitMQ |
||
232 | |||
233 | Defines the per-queue message time-to-live (milliseconds) |
||
234 | EOF; |
||
235 | |||
236 | $prefetchCountInfo = <<<'EOF' |
||
237 | Only used by RabbitMQ |
||
238 | |||
239 | Defines the number of messages which will be delivered to the customer at a time. |
||
240 | EOF; |
||
241 | |||
242 | $typesInfo = <<<'EOF' |
||
243 | Only used by Doctrine |
||
244 | |||
245 | Defines types handled by the message backend |
||
246 | EOF; |
||
247 | |||
248 | $connectionNode = $node |
||
249 | ->info($queuesInfo) |
||
250 | ->requiresAtLeastOneElement() |
||
251 | ->prototype('array') |
||
252 | ; |
||
253 | |||
254 | $connectionNode |
||
255 | ->children() |
||
256 | ->scalarNode('queue') |
||
257 | ->info('The name of the queue') |
||
258 | ->cannotBeEmpty() |
||
259 | ->isRequired() |
||
260 | ->end() |
||
261 | ->booleanNode('default') |
||
262 | ->info('Set the name of the default queue') |
||
263 | ->defaultValue(false) |
||
264 | ->end() |
||
265 | |||
266 | // RabbitMQ configuration |
||
267 | ->scalarNode('routing_key') |
||
268 | ->info($routingKeyInfo) |
||
269 | ->defaultValue('') |
||
270 | ->end() |
||
271 | ->booleanNode('recover') |
||
272 | ->info($recoverInfo) |
||
273 | ->defaultValue(false) |
||
274 | ->end() |
||
275 | ->scalarNode('dead_letter_exchange') |
||
276 | ->info($deadLetterExchangeInfo) |
||
277 | ->defaultValue(null) |
||
278 | ->end() |
||
279 | ->scalarNode('dead_letter_routing_key') |
||
280 | ->info($deadLetterRoutingKeyInfo) |
||
281 | ->defaultValue(null) |
||
282 | ->end() |
||
283 | ->integerNode('ttl') |
||
284 | ->info($ttlInfo) |
||
285 | ->min(0) |
||
286 | ->defaultValue(null) |
||
287 | ->end() |
||
288 | ->integerNode('prefetch_count') |
||
289 | ->info($prefetchCountInfo) |
||
290 | ->min(0) |
||
291 | ->max(65535) |
||
292 | ->defaultValue(null) |
||
293 | ->end() |
||
294 | |||
295 | // Database configuration (Doctrine) |
||
296 | ->arrayNode('types') |
||
297 | ->info($typesInfo) |
||
298 | ->defaultValue([]) |
||
299 | ->prototype('scalar')->end() |
||
300 | ->end() |
||
301 | ->end(); |
||
302 | |||
303 | return $node; |
||
304 | } |
||
305 | } |
||
306 |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the parent class: