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:
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20 | class AzureBlobStorage implements Adapter, |
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21 | MetadataSupporter |
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22 | { |
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23 | /** |
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24 | * Error constants. |
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25 | */ |
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26 | const ERROR_CONTAINER_ALREADY_EXISTS = 'ContainerAlreadyExists'; |
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27 | const ERROR_CONTAINER_NOT_FOUND = 'ContainerNotFound'; |
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28 | |||
29 | /** |
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30 | * @var AzureBlobStorage\BlobProxyFactoryInterface |
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31 | */ |
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32 | protected $blobProxyFactory; |
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33 | |||
34 | /** |
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35 | * @var string |
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36 | */ |
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37 | protected $containerName; |
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38 | |||
39 | /** |
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40 | * @var bool |
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41 | */ |
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42 | protected $detectContentType; |
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43 | |||
44 | /** |
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45 | * @var \WindowsAzure\Blob\Internal\IBlob |
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46 | */ |
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47 | protected $blobProxy; |
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48 | |||
49 | /** |
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50 | * @param AzureBlobStorage\BlobProxyFactoryInterface $blobProxyFactory |
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51 | * @param string $containerName |
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52 | * @param bool $create |
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53 | * @param bool $detectContentType |
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54 | */ |
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55 | public function __construct(BlobProxyFactoryInterface $blobProxyFactory, $containerName, $create = false, $detectContentType = true) |
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64 | |||
65 | /** |
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66 | * Creates a new container. |
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67 | * |
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68 | * @param string $containerName |
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69 | * @param \WindowsAzure\Blob\Models\CreateContainerOptions $options |
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70 | * |
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71 | * @throws \RuntimeException if cannot create the container |
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72 | */ |
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73 | View Code Duplication | public function createContainer($containerName, CreateContainerOptions $options = null) |
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92 | |||
93 | /** |
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94 | * Deletes a container. |
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95 | * |
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96 | * @param string $containerName |
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97 | * @param DeleteContainerOptions $options |
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98 | * |
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99 | * @throws \RuntimeException if cannot delete the container |
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100 | */ |
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101 | View Code Duplication | public function deleteContainer($containerName, DeleteContainerOptions $options = null) |
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120 | |||
121 | /** |
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122 | * {@inheritdoc} |
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123 | */ |
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124 | View Code Duplication | public function read($key) |
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138 | |||
139 | /** |
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140 | * {@inheritdoc} |
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141 | */ |
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142 | public function write($key, $content) |
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172 | |||
173 | /** |
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174 | * {@inheritdoc} |
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175 | */ |
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176 | public function exists($key) |
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206 | |||
207 | /** |
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208 | * {@inheritdoc} |
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209 | */ |
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210 | public function keys() |
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235 | |||
236 | /** |
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237 | * {@inheritdoc} |
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238 | */ |
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239 | public function mtime($key) |
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253 | |||
254 | /** |
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255 | * {@inheritdoc} |
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256 | */ |
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257 | View Code Duplication | public function delete($key) |
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271 | |||
272 | /** |
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273 | * {@inheritdoc} |
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274 | */ |
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275 | public function rename($sourceKey, $targetKey) |
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290 | |||
291 | /** |
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292 | * {@inheritdoc} |
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293 | */ |
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294 | public function isDirectory($key) |
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299 | |||
300 | /** |
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301 | * {@inheritdoc} |
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302 | */ |
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303 | View Code Duplication | public function setMetadata($key, $content) |
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321 | |||
322 | /** |
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323 | * {@inheritdoc} |
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324 | */ |
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325 | View Code Duplication | public function getMetadata($key) |
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345 | |||
346 | /** |
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347 | * Lazy initialization, automatically called when some method is called after construction. |
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348 | */ |
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349 | protected function init() |
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355 | |||
356 | /** |
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357 | * Throws a runtime exception if a give ServiceException derived from a "container not found" error. |
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358 | * |
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359 | * @param ServiceException $exception |
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360 | * @param string $action |
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361 | * |
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362 | * @throws \RuntimeException |
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363 | */ |
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364 | protected function failIfContainerNotFound(ServiceException $exception, $action) |
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376 | |||
377 | /** |
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378 | * Extracts the error code from a service exception. |
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379 | * |
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380 | * @param ServiceException $exception |
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381 | * |
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382 | * @return string |
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383 | */ |
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384 | protected function getErrorCodeFromServiceException(ServiceException $exception) |
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394 | } |
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395 |