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:
| 1 | <?php |
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| 28 | class GenericResource implements PuliResource |
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| 29 | { |
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| 30 | /** |
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| 31 | * @var ResourceRepository |
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| 32 | */ |
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| 33 | private $repo; |
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| 34 | |||
| 35 | /** |
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| 36 | * @var string |
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| 37 | */ |
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| 38 | private $path; |
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| 39 | |||
| 40 | /** |
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| 41 | * @var string |
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| 42 | */ |
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| 43 | private $repoPath; |
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| 44 | |||
| 45 | /** |
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| 46 | * Creates a new resource. |
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| 47 | * |
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| 48 | * @param string|null $path The path of the resource. |
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| 49 | */ |
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| 50 | 1052 | public function __construct($path = null) |
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| 51 | { |
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| 52 | 1052 | $this->path = $path; |
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| 53 | 1052 | $this->repoPath = $path; |
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| 54 | 1052 | } |
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| 55 | |||
| 56 | /** |
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| 57 | * {@inheritdoc} |
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| 58 | */ |
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| 59 | 742 | public function getPath() |
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| 63 | |||
| 64 | /** |
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| 65 | * {@inheritdoc} |
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| 66 | */ |
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| 67 | 455 | public function getName() |
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| 71 | |||
| 72 | /** |
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| 73 | * {@inheritdoc} |
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| 74 | */ |
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| 75 | 3 | View Code Duplication | public function getChild($relPath) |
| 76 | { |
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| 77 | 3 | if (!$this->getRepository()) { |
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| 78 | 1 | throw ResourceNotFoundException::forPath($this->getRepositoryPath().'/'.$relPath); |
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| 79 | } |
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| 80 | |||
| 81 | 2 | return $this->getRepository()->get($this->getRepositoryPath().'/'.$relPath); |
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| 82 | } |
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| 83 | |||
| 84 | /** |
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| 85 | * {@inheritdoc} |
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| 86 | */ |
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| 87 | 3 | public function hasChild($relPath) |
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| 88 | { |
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| 89 | 3 | if (!$this->getRepository()) { |
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| 90 | 1 | return false; |
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| 91 | } |
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| 92 | |||
| 93 | 2 | return $this->getRepository()->contains($this->getRepositoryPath().'/'.$relPath); |
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| 94 | } |
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| 95 | |||
| 96 | /** |
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| 97 | * {@inheritdoc} |
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| 98 | */ |
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| 99 | 3 | public function hasChildren() |
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| 100 | { |
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| 101 | 3 | if (!$this->getRepository()) { |
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| 102 | 1 | return false; |
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| 103 | } |
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| 104 | |||
| 105 | 2 | return $this->getRepository()->hasChildren($this->getRepositoryPath()); |
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| 106 | } |
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| 107 | |||
| 108 | /** |
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| 109 | * {@inheritdoc} |
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| 110 | */ |
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| 111 | 8 | View Code Duplication | public function listChildren() |
| 112 | { |
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| 113 | 8 | $children = new ArrayResourceCollection(); |
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| 114 | |||
| 115 | 8 | if (!$this->getRepository()) { |
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| 116 | 1 | return $children; |
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| 117 | } |
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| 118 | |||
| 119 | 7 | foreach ($this->getRepository()->listChildren($this->getRepositoryPath()) as $child) { |
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| 120 | 2 | $children[$child->getName()] = $child; |
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| 121 | } |
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| 122 | |||
| 123 | 7 | return $children; |
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| 124 | } |
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| 125 | |||
| 126 | /** |
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| 127 | * {@inheritdoc} |
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| 128 | */ |
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| 129 | 8 | public function getVersions() |
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| 130 | { |
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| 131 | 8 | if (!$this->getRepository()) { |
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| 132 | 4 | return new VersionList($this->getRepositoryPath(), array($this)); |
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| 133 | } |
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| 134 | |||
| 135 | 4 | return $this->getRepository()->getVersions($this->getRepositoryPath()); |
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| 136 | } |
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| 137 | |||
| 138 | /** |
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| 139 | * {@inheritdoc} |
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| 140 | */ |
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| 141 | public function getMetadata() |
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| 145 | |||
| 146 | /** |
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| 147 | * {@inheritdoc} |
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| 148 | */ |
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| 149 | 920 | public function attachTo(ResourceRepository $repo, $path = null) |
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| 150 | { |
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| 151 | 920 | $this->repo = $repo; |
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| 152 | |||
| 153 | 920 | if (null !== $path) { |
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| 154 | 817 | $this->path = $path; |
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| 155 | 817 | $this->repoPath = $path; |
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| 156 | } |
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| 157 | 920 | } |
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| 158 | |||
| 159 | /** |
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| 160 | * {@inheritdoc} |
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| 161 | */ |
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| 162 | 28 | public function detach() |
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| 166 | |||
| 167 | /** |
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| 168 | * {@inheritdoc} |
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| 169 | */ |
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| 170 | 415 | public function getRepository() |
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| 174 | |||
| 175 | /** |
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| 176 | * {@inheritdoc} |
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| 177 | */ |
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| 178 | 145 | public function getRepositoryPath() |
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| 182 | |||
| 183 | /** |
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| 184 | * {@inheritdoc} |
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| 185 | */ |
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| 186 | 84 | public function isAttached() |
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| 190 | |||
| 191 | /** |
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| 192 | * {@inheritdoc} |
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| 193 | */ |
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| 194 | 56 | public function createReference($path) |
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| 195 | { |
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| 196 | 56 | $ref = clone $this; |
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| 197 | 56 | $ref->path = $path; |
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| 198 | |||
| 199 | 56 | return $ref; |
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| 200 | } |
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| 201 | |||
| 202 | /** |
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| 203 | * {@inheritdoc} |
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| 204 | */ |
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| 205 | 84 | public function isReference() |
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| 209 | |||
| 210 | /** |
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| 211 | * {@inheritdoc} |
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| 212 | */ |
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| 213 | 45 | public function serialize() |
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| 214 | { |
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| 215 | 45 | $data = array(); |
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| 216 | |||
| 217 | 45 | $this->preSerialize($data); |
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| 221 | |||
| 222 | /** |
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| 223 | * {@inheritdoc} |
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| 224 | */ |
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| 225 | 37 | public function unserialize($string) |
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| 231 | |||
| 232 | /** |
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| 233 | * Invoked before serializing a resource. |
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| 234 | * |
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| 235 | * Override this method if you want to serialize custom data in subclasses. |
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| 236 | * |
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| 237 | * @param array $data The data to serialize. Add custom data at the end of |
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| 238 | * the array. |
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| 239 | */ |
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| 240 | 45 | protected function preSerialize(array &$data) |
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| 245 | |||
| 246 | /** |
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| 247 | * Invoked after unserializing a resource. |
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| 248 | * |
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| 249 | * Override this method if you want to unserialize custom data in |
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| 250 | * subclasses. |
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| 251 | * |
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| 252 | * @param array $data The unserialized data. Pop your custom data from the |
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| 253 | * end of the array before calling the parent method. |
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| 254 | */ |
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| 255 | 37 | protected function postUnserialize(array $data) |
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| 260 | } |
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| 261 |