Complex classes like Passbook 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 Passbook, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
||
| 19 | abstract class Passbook |
||
| 20 | { |
||
| 21 | protected const TYPE = null; |
||
| 22 | |||
| 23 | /** |
||
| 24 | * @var int |
||
| 25 | */ |
||
| 26 | private $formatVersion = 1; |
||
| 27 | |||
| 28 | /** |
||
| 29 | * @var string |
||
| 30 | */ |
||
| 31 | private $passTypeIdentifier; |
||
| 32 | |||
| 33 | /** |
||
| 34 | * @var string |
||
| 35 | */ |
||
| 36 | private $serialNumber; |
||
| 37 | |||
| 38 | /** |
||
| 39 | * @var string |
||
| 40 | */ |
||
| 41 | private $teamIdentifier; |
||
| 42 | |||
| 43 | /** |
||
| 44 | * @var string |
||
| 45 | */ |
||
| 46 | private $organizationName; |
||
| 47 | |||
| 48 | /** |
||
| 49 | * @var string |
||
| 50 | */ |
||
| 51 | private $description; |
||
| 52 | |||
| 53 | /** |
||
| 54 | * @var string|null |
||
| 55 | */ |
||
| 56 | private $logoText; |
||
| 57 | |||
| 58 | /** |
||
| 59 | * @var Barcode[] |
||
| 60 | */ |
||
| 61 | private $barcodes = []; |
||
| 62 | |||
| 63 | /** |
||
| 64 | * @var DateTimeImmutable|null |
||
| 65 | */ |
||
| 66 | private $relevantDate; |
||
| 67 | |||
| 68 | /** |
||
| 69 | * @var string|null |
||
| 70 | */ |
||
| 71 | private $appLaunchURL; |
||
| 72 | |||
| 73 | /** |
||
| 74 | * @var array|null |
||
| 75 | */ |
||
| 76 | private $associatedStoreIdentifiers; |
||
| 77 | |||
| 78 | /** |
||
| 79 | * @var string|null |
||
| 80 | */ |
||
| 81 | private $userInfo; |
||
| 82 | |||
| 83 | /** |
||
| 84 | * @var DateTimeImmutable|null |
||
| 85 | */ |
||
| 86 | private $expirationDate; |
||
| 87 | |||
| 88 | /** |
||
| 89 | * @var boolean|null |
||
| 90 | */ |
||
| 91 | private $voided; |
||
| 92 | |||
| 93 | /** |
||
| 94 | * @var Location[]|null |
||
| 95 | */ |
||
| 96 | private $locations; |
||
| 97 | |||
| 98 | /** |
||
| 99 | * @var int|null |
||
| 100 | */ |
||
| 101 | private $maxDistance; |
||
| 102 | |||
| 103 | /** |
||
| 104 | * @var string|null |
||
| 105 | */ |
||
| 106 | private $webServiceURL; |
||
| 107 | |||
| 108 | /** |
||
| 109 | * @var string|null |
||
| 110 | */ |
||
| 111 | private $authenticationToken; |
||
| 112 | |||
| 113 | /** |
||
| 114 | * @var Color|null |
||
| 115 | */ |
||
| 116 | private $foregroundColor; |
||
| 117 | |||
| 118 | /** |
||
| 119 | * @var Color|null |
||
| 120 | */ |
||
| 121 | private $backgroundColor; |
||
| 122 | |||
| 123 | /** |
||
| 124 | * @var Color|null |
||
| 125 | */ |
||
| 126 | private $labelColor; |
||
| 127 | |||
| 128 | /** |
||
| 129 | * @var LocalImage[] |
||
| 130 | */ |
||
| 131 | private $images = []; |
||
| 132 | |||
| 133 | /** |
||
| 134 | * @var Field[] |
||
| 135 | */ |
||
| 136 | private $headerFields = []; |
||
| 137 | |||
| 138 | /** |
||
| 139 | * @var Field[] |
||
| 140 | */ |
||
| 141 | private $primaryFields = []; |
||
| 142 | |||
| 143 | /** |
||
| 144 | * @var Field[] |
||
| 145 | */ |
||
| 146 | private $auxiliaryFields = []; |
||
| 147 | |||
| 148 | /** |
||
| 149 | * @var Field[] |
||
| 150 | */ |
||
| 151 | private $secondaryFields = []; |
||
| 152 | |||
| 153 | /** |
||
| 154 | * @var Field[] |
||
| 155 | */ |
||
| 156 | private $backFields = []; |
||
| 157 | |||
| 158 | 3 | public function __construct(string $serialNumber) |
|
| 162 | |||
| 163 | 3 | public function setOrganizationName(string $organizationName): void |
|
| 167 | |||
| 168 | 3 | public function setDescription(string $description): void |
|
| 172 | |||
| 173 | 3 | public function setPassTypeIdentifier(string $passTypeIdentifier): void |
|
| 177 | |||
| 178 | 3 | public function setTeamIdentifier(string $teamIdentifier): void |
|
| 182 | |||
| 183 | 7 | public function setLogoText(string $logoText): void |
|
| 187 | |||
| 188 | 7 | public function setRelevantDate(DateTimeImmutable $relevantDate): void |
|
| 192 | |||
| 193 | 7 | public function setBarcode(Barcode $barcode): void |
|
| 197 | |||
| 198 | 7 | public function addLocation(Location $location): void |
|
| 202 | |||
| 203 | 6 | public function setMaxDistance(int $maxDistance): void |
|
| 207 | |||
| 208 | 7 | public function setWebService($url, $authenticationToken): void |
|
| 213 | |||
| 214 | 7 | public function setForegroundColor(Color $foregroundColor): void |
|
| 218 | |||
| 219 | 7 | public function setBackgroundColor(Color $backgroundColor): void |
|
| 223 | |||
| 224 | 6 | public function setLabelColor(Color $labelColor): void |
|
| 228 | |||
| 229 | 6 | public function addImage(Image $image): void |
|
| 233 | |||
| 234 | 7 | public function addHeaderField(Field $field): void |
|
| 238 | |||
| 239 | 7 | public function addPrimaryField(Field $field): void |
|
| 243 | |||
| 244 | 1 | public function addAuxiliaryField(Field $field): void |
|
| 248 | |||
| 249 | 7 | public function addSecondaryField(Field $field): void |
|
| 253 | |||
| 254 | 7 | public function addBackField(Field $field): void |
|
| 258 | |||
| 259 | 1 | public function setAppLaunchURL(string $appLaunchURL): void |
|
| 263 | |||
| 264 | 1 | public function addAssociatedStoreIdentifiers(int $associatedStoreIdentifiers): void |
|
| 268 | |||
| 269 | 1 | public function setUserInfo(string $userInfo): void |
|
| 273 | |||
| 274 | 6 | public function voided(): void |
|
| 278 | |||
| 279 | 6 | public function hasPassTypeIdentifier(): bool |
|
| 283 | |||
| 284 | 6 | public function hasTeamIdentifier(): bool |
|
| 288 | |||
| 289 | 3 | public function getData(): array |
|
| 298 | |||
| 299 | 2 | private function getGenericData(): array |
|
| 375 | |||
| 376 | 2 | private function getFieldsData(): array |
|
| 398 | |||
| 399 | /** |
||
| 400 | * @return Image[] |
||
| 401 | */ |
||
| 402 | 6 | public function getImages(): array |
|
| 406 | |||
| 407 | /** |
||
| 408 | * @throws LogicException |
||
| 409 | * @throws MissingRequiredDataException |
||
| 410 | */ |
||
| 411 | 29 | public function validate(): void |
|
| 433 | } |
||
| 434 |
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: