doctrine /
mongodb-odm
Complex classes like AnnotationDriver 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 AnnotationDriver, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 38 | class AnnotationDriver extends AbstractAnnotationDriver |
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| 39 | { |
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| 40 | protected $entityAnnotationClasses = array( |
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| 41 | ODM\Document::class => 1, |
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| 42 | ODM\MappedSuperclass::class => 2, |
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| 43 | ODM\EmbeddedDocument::class => 3, |
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| 44 | ODM\QueryResultDocument::class => 4, |
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| 45 | ); |
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| 46 | |||
| 47 | /** |
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| 48 | * Registers annotation classes to the common registry. |
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| 49 | * |
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| 50 | * This method should be called when bootstrapping your application. |
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| 51 | */ |
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| 52 | public static function registerAnnotationClasses() |
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| 56 | |||
| 57 | /** |
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| 58 | * {@inheritdoc} |
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| 59 | */ |
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| 60 | 899 | public function loadMetadataForClass($className, ClassMetadata $class) |
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| 61 | { |
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| 62 | /** @var $class ClassMetadataInfo */ |
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| 63 | 899 | $reflClass = $class->getReflectionClass(); |
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| 64 | |||
| 65 | 899 | $classAnnotations = $this->reader->getClassAnnotations($reflClass); |
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| 66 | |||
| 67 | 899 | $documentAnnots = array(); |
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| 68 | 899 | foreach ($classAnnotations as $annot) { |
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| 69 | 897 | $classAnnotations[get_class($annot)] = $annot; |
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| 70 | |||
| 71 | 897 | foreach ($this->entityAnnotationClasses as $annotClass => $i) { |
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| 72 | 897 | if ($annot instanceof $annotClass) { |
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| 73 | 897 | $documentAnnots[$i] = $annot; |
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| 74 | 897 | continue 2; |
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| 75 | } |
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| 76 | } |
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| 77 | |||
| 78 | // non-document class annotations |
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| 79 | 395 | if ($annot instanceof ODM\AbstractIndex) { |
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| 80 | 13 | $this->addIndex($class, $annot); |
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| 81 | } |
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| 82 | 395 | if ($annot instanceof ODM\Indexes) { |
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| 83 | 65 | foreach (is_array($annot->value) ? $annot->value : array($annot->value) as $index) { |
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| 84 | 65 | $this->addIndex($class, $index); |
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| 85 | } |
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| 86 | } elseif ($annot instanceof ODM\InheritanceType) { |
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| 87 | 302 | $class->setInheritanceType(constant(MappingClassMetadata::class . '::INHERITANCE_TYPE_'.$annot->value)); |
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| 88 | } elseif ($annot instanceof ODM\DiscriminatorField) { |
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| 89 | // $fieldName property is deprecated, but fall back for BC |
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| 90 | 115 | if (isset($annot->value)) { |
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| 91 | 115 | $class->setDiscriminatorField($annot->value); |
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| 92 | } elseif (isset($annot->name)) { |
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| 93 | $class->setDiscriminatorField($annot->name); |
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| 94 | } elseif (isset($annot->fieldName)) { |
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| 95 | 115 | $class->setDiscriminatorField($annot->fieldName); |
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| 96 | } |
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| 97 | } elseif ($annot instanceof ODM\DiscriminatorMap) { |
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| 98 | 115 | $class->setDiscriminatorMap($annot->value); |
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| 99 | } elseif ($annot instanceof ODM\DiscriminatorValue) { |
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| 100 | $class->setDiscriminatorValue($annot->value); |
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| 101 | } elseif ($annot instanceof ODM\ChangeTrackingPolicy) { |
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| 102 | 57 | $class->setChangeTrackingPolicy(constant(MappingClassMetadata::class . '::CHANGETRACKING_'.$annot->value)); |
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| 103 | } elseif ($annot instanceof ODM\DefaultDiscriminatorValue) { |
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| 104 | 395 | $class->setDefaultDiscriminatorValue($annot->value); |
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| 105 | } |
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| 106 | |||
| 107 | } |
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| 108 | |||
| 109 | 899 | if ( ! $documentAnnots) { |
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| 110 | 3 | throw MappingException::classIsNotAValidDocument($className); |
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| 111 | } |
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| 112 | |||
| 113 | // find the winning document annotation |
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| 114 | 897 | ksort($documentAnnots); |
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| 115 | 897 | $documentAnnot = reset($documentAnnots); |
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| 116 | |||
| 117 | 897 | if ($documentAnnot instanceof ODM\MappedSuperclass) { |
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| 118 | 297 | $class->isMappedSuperclass = true; |
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| 119 | } elseif ($documentAnnot instanceof ODM\EmbeddedDocument) { |
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| 120 | 296 | $class->isEmbeddedDocument = true; |
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| 121 | } elseif ($documentAnnot instanceof ODM\QueryResultDocument) { |
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| 122 | 52 | $class->isQueryResultDocument = true; |
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| 123 | } |
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| 124 | 897 | if (isset($documentAnnot->db)) { |
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| 125 | 1 | $class->setDatabase($documentAnnot->db); |
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| 126 | } |
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| 127 | 897 | if (isset($documentAnnot->collection)) { |
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| 128 | 354 | $class->setCollection($documentAnnot->collection); |
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| 129 | } |
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| 130 | 897 | if (isset($documentAnnot->repositoryClass)) { |
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| 131 | 65 | $class->setCustomRepositoryClass($documentAnnot->repositoryClass); |
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| 132 | } |
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| 133 | 897 | if (isset($documentAnnot->writeConcern)) { |
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| 134 | 11 | $class->setWriteConcern($documentAnnot->writeConcern); |
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| 135 | } |
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| 136 | 897 | if (isset($documentAnnot->indexes)) { |
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| 137 | 896 | foreach ($documentAnnot->indexes as $index) { |
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| 138 | $this->addIndex($class, $index); |
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| 139 | } |
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| 140 | } |
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| 141 | 897 | if (isset($documentAnnot->requireIndexes)) { |
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| 142 | 889 | $class->setRequireIndexes($documentAnnot->requireIndexes); |
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| 143 | } |
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| 144 | 897 | if (isset($documentAnnot->slaveOkay)) { |
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| 145 | 1 | $class->setSlaveOkay($documentAnnot->slaveOkay); |
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| 146 | } |
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| 147 | |||
| 148 | 897 | foreach ($reflClass->getProperties() as $property) { |
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| 149 | 896 | if (($class->isMappedSuperclass && ! $property->isPrivate()) |
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| 150 | || |
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| 151 | 896 | ($class->isInheritedField($property->name) && $property->getDeclaringClass()->name !== $class->name)) { |
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| 152 | 336 | continue; |
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| 153 | } |
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| 154 | |||
| 155 | 895 | $indexes = array(); |
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| 156 | 895 | $mapping = array('fieldName' => $property->getName()); |
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| 157 | 895 | $fieldAnnot = null; |
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| 158 | |||
| 159 | 895 | foreach ($this->reader->getPropertyAnnotations($property) as $annot) { |
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| 160 | 895 | if ($annot instanceof ODM\AbstractField) { |
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| 161 | 895 | $fieldAnnot = $annot; |
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| 162 | } |
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| 163 | 895 | if ($annot instanceof ODM\AbstractIndex) { |
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| 164 | 195 | $indexes[] = $annot; |
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| 165 | } |
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| 166 | 895 | if ($annot instanceof ODM\Indexes) { |
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| 167 | foreach (is_array($annot->value) ? $annot->value : array($annot->value) as $index) { |
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| 168 | $indexes[] = $index; |
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| 169 | } |
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| 170 | } elseif ($annot instanceof ODM\AlsoLoad) { |
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| 171 | 15 | $mapping['alsoLoadFields'] = (array) $annot->value; |
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| 172 | } elseif ($annot instanceof ODM\Version) { |
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| 173 | 97 | $mapping['version'] = true; |
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| 174 | } elseif ($annot instanceof ODM\Lock) { |
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| 175 | 895 | $mapping['lock'] = true; |
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| 176 | } |
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| 177 | } |
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| 178 | |||
| 179 | 895 | if ($fieldAnnot) { |
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| 180 | 895 | $mapping = array_replace($mapping, (array) $fieldAnnot); |
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| 181 | 895 | $class->mapField($mapping); |
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| 182 | } |
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| 183 | |||
| 184 | 895 | if ($indexes) { |
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| 185 | 195 | foreach ($indexes as $index) { |
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| 186 | 195 | $name = isset($mapping['name']) ? $mapping['name'] : $mapping['fieldName']; |
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| 187 | 195 | $keys = array($name => $index->order ?: 'asc'); |
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| 188 | 895 | $this->addIndex($class, $index, $keys); |
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| 189 | } |
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| 190 | } |
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| 191 | } |
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| 192 | |||
| 193 | // Set shard key after all fields to ensure we mapped all its keys |
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| 194 | 895 | if (isset($classAnnotations['Doctrine\ODM\MongoDB\Mapping\Annotations\ShardKey'])) { |
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| 195 | 72 | $this->setShardKey($class, $classAnnotations['Doctrine\ODM\MongoDB\Mapping\Annotations\ShardKey']); |
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| 196 | } |
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| 197 | |||
| 198 | /** @var $method \ReflectionMethod */ |
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| 199 | 894 | foreach ($reflClass->getMethods(\ReflectionMethod::IS_PUBLIC) as $method) { |
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| 200 | /* Filter for the declaring class only. Callbacks from parent |
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| 201 | * classes will already be registered. |
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| 202 | */ |
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| 203 | 620 | if ($method->getDeclaringClass()->name !== $reflClass->name) { |
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| 204 | 309 | continue; |
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| 205 | } |
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| 206 | |||
| 207 | 620 | foreach ($this->reader->getMethodAnnotations($method) as $annot) { |
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| 208 | 302 | if ($annot instanceof ODM\AlsoLoad) { |
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| 209 | 13 | $class->registerAlsoLoadMethod($method->getName(), $annot->value); |
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| 210 | } |
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| 211 | |||
| 212 | 302 | if ( ! isset($classAnnotations[ODM\HasLifecycleCallbacks::class])) { |
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| 213 | 72 | continue; |
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| 214 | } |
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| 215 | |||
| 216 | 283 | if ($annot instanceof ODM\PrePersist) { |
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| 217 | 262 | $class->addLifecycleCallback($method->getName(), Events::prePersist); |
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| 218 | } elseif ($annot instanceof ODM\PostPersist) { |
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| 219 | 11 | $class->addLifecycleCallback($method->getName(), Events::postPersist); |
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| 220 | } elseif ($annot instanceof ODM\PreUpdate) { |
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| 221 | 15 | $class->addLifecycleCallback($method->getName(), Events::preUpdate); |
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| 222 | } elseif ($annot instanceof ODM\PostUpdate) { |
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| 223 | 67 | $class->addLifecycleCallback($method->getName(), Events::postUpdate); |
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| 224 | } elseif ($annot instanceof ODM\PreRemove) { |
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| 225 | 72 | $class->addLifecycleCallback($method->getName(), Events::preRemove); |
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| 226 | } elseif ($annot instanceof ODM\PostRemove) { |
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| 227 | 70 | $class->addLifecycleCallback($method->getName(), Events::postRemove); |
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| 228 | } elseif ($annot instanceof ODM\PreLoad) { |
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| 229 | 71 | $class->addLifecycleCallback($method->getName(), Events::preLoad); |
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| 230 | } elseif ($annot instanceof ODM\PostLoad) { |
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| 231 | 72 | $class->addLifecycleCallback($method->getName(), Events::postLoad); |
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| 232 | } elseif ($annot instanceof ODM\PreFlush) { |
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| 233 | 620 | $class->addLifecycleCallback($method->getName(), Events::preFlush); |
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| 234 | } |
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| 235 | } |
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| 236 | } |
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| 237 | 894 | } |
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| 238 | |||
| 239 | 219 | private function addIndex(ClassMetadataInfo $class, $index, array $keys = array()) |
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| 255 | |||
| 256 | /** |
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| 257 | * @param ClassMetadataInfo $class |
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| 258 | * @param ODM\ShardKey $shardKey |
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| 259 | * |
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| 260 | * @throws MappingException |
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| 261 | */ |
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| 262 | 72 | private function setShardKey(ClassMetadataInfo $class, ODM\ShardKey $shardKey) |
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| 263 | { |
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| 264 | 72 | $options = array(); |
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| 265 | 72 | $allowed = array('unique', 'numInitialChunks'); |
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| 266 | 72 | foreach ($allowed as $name) { |
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| 267 | 72 | if (isset($shardKey->$name)) { |
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| 268 | 72 | $options[$name] = $shardKey->$name; |
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| 269 | } |
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| 270 | } |
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| 271 | |||
| 272 | 72 | $class->setShardKey($shardKey->keys, $options); |
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| 273 | 71 | } |
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| 274 | |||
| 275 | /** |
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| 276 | * Factory method for the Annotation Driver |
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| 277 | * |
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| 278 | * @param array|string $paths |
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| 279 | * @param Reader $reader |
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| 280 | * @return AnnotationDriver |
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| 281 | */ |
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| 282 | 1128 | public static function create($paths = array(), Reader $reader = null) |
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| 289 | } |
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| 290 |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.