Complex classes like ProvidersWrapper 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 ProvidersWrapper, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 34 | class ProvidersWrapper  | 
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| 35 | { | 
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| 36 | /**  | 
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| 37 | * Holds reference to IMetadataProvider implementation.  | 
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| 38 | *  | 
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| 39 | * @var IMetadataProvider  | 
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| 40 | */  | 
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| 41 | private $metaProvider;  | 
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| 42 | |||
| 43 | /**  | 
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| 44 | * Holds reference to IServiceConfiguration implementation.  | 
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| 45 | *  | 
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| 46 | * @var IServiceConfiguration  | 
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| 47 | */  | 
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| 48 | private $config;  | 
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| 49 | |||
| 50 | /*  | 
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| 51 | * Holds reference to ProvidersQueryWrapper implementation  | 
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| 52 | *  | 
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| 53 | * @var ProvidersQueryWrapper  | 
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| 54 | */  | 
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| 55 | private $providerWrapper;  | 
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| 56 | |||
| 57 | /**  | 
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| 58 | * Cache for ResourceProperties of a resource type that belongs to a  | 
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| 59 | * resource set. An entry (ResourceProperty collection) in this cache  | 
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| 60 | * contains only the visible properties of ResourceType.  | 
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| 61 | *  | 
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| 62 | * @var array<array>  | 
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| 63 | */  | 
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| 64 | private $propertyCache = [];  | 
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| 65 | |||
| 66 | /**  | 
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| 67 | * Cache for ResourceSetWrappers. If ResourceSet is invisible value will  | 
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| 68 | * be null.  | 
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| 69 | *  | 
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| 70 | * @var ResourceSetWrapper[] indexed by resource set name  | 
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| 71 | */  | 
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| 72 | private $setWrapperCache = [];  | 
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| 73 | |||
| 74 | /**  | 
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| 75 | * Cache for ResourceTypes.  | 
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| 76 | *  | 
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| 77 | * @var ResourceType[] indexed by resource type name  | 
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| 78 | */  | 
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| 79 | private $typeCache = [];  | 
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| 80 | |||
| 81 | /**  | 
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| 82 | * Cache for ResourceAssociationSet. If ResourceAssociationSet is invisible  | 
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| 83 | * value will be null.  | 
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| 84 | *  | 
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| 85 | * @var ResourceAssociationSet[] indexed by name  | 
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| 86 | */  | 
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| 87 | private $associationSetCache = [];  | 
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                         | 
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| 88 | |||
| 89 | /**  | 
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| 90 | * Creates a new instance of ProvidersWrapper.  | 
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| 91 | *  | 
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| 92 | * @param IMetadataProvider $meta Reference to IMetadataProvider implementation  | 
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| 93 | * @param IQueryProvider $query Reference to IQueryProvider implementation  | 
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| 94 | * @param IServiceConfiguration $config Reference to IServiceConfiguration implementation  | 
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| 95 | */  | 
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| 96 | public function __construct(IMetadataProvider $meta, IQueryProvider $query, IServiceConfiguration $config)  | 
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| 97 |     { | 
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| 98 | $this->metaProvider = $meta;  | 
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| 99 | $this->config = $config;  | 
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| 100 | $this->providerWrapper = new ProvidersQueryWrapper($query);  | 
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| 101 | }  | 
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| 102 | |||
| 103 | /**  | 
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| 104 | * @return ProvidersQueryWrapper  | 
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| 105 | */  | 
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| 106 | public function getProviderWrapper()  | 
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| 111 | |||
| 112 | /**  | 
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| 113 | * @return IMetadataProvider  | 
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| 114 | */  | 
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| 115 | public function getMetaProvider()  | 
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| 116 |     { | 
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| 117 | assert(null != $this->metaProvider, 'Metadata provider must be set');  | 
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| 118 | return $this->metaProvider;  | 
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| 119 | }  | 
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| 120 | |||
| 121 | //Wrappers for IMetadataProvider methods  | 
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| 122 | |||
| 123 | /**  | 
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| 124 | * To get the Container name for the data source,  | 
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| 125 | * Note: Wrapper for IMetadataProvider::getContainerName method  | 
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| 126 | * implementation.  | 
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| 127 | *  | 
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| 128 | * @throws ODataException Exception if implementation returns empty container name  | 
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| 129 | *  | 
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| 130 | * @return string that contains the name of the container  | 
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| 131 | */  | 
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| 132 | public function getContainerName()  | 
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| 133 |     { | 
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| 134 | $containerName = $this->getMetaProvider()->getContainerName();  | 
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| 135 |         if (empty($containerName)) { | 
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| 136 | throw new ODataException(  | 
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| 137 | Messages::providersWrapperContainerNameMustNotBeNullOrEmpty(),  | 
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| 138 | 500  | 
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| 139 | );  | 
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| 140 | }  | 
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| 141 | |||
| 142 | return $containerName;  | 
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| 143 | }  | 
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| 144 | |||
| 145 | /**  | 
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| 146 | * To get Namespace name for the data source,  | 
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| 147 | * Note: Wrapper for IMetadataProvider::getContainerNamespace method implementation.  | 
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| 148 | *  | 
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| 149 | * @throws ODataException Exception if implementation returns empty container namespace  | 
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| 150 | *  | 
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| 151 | * @return string that contains the namespace name  | 
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| 152 | */  | 
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| 153 | public function getContainerNamespace()  | 
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| 154 |     { | 
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| 155 | $containerNamespace = $this->getMetaProvider()->getContainerNamespace();  | 
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| 156 |         if (empty($containerNamespace)) { | 
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| 157 | throw new ODataException(  | 
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| 158 | Messages::providersWrapperContainerNamespaceMustNotBeNullOrEmpty(),  | 
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| 159 | 500  | 
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| 160 | );  | 
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| 161 | }  | 
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| 162 | |||
| 163 | return $containerNamespace;  | 
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| 164 | }  | 
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| 165 | |||
| 166 | /**  | 
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| 167 | * To get the data service configuration.  | 
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| 168 | *  | 
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| 169 | * @return IServiceConfiguration  | 
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| 170 | */  | 
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| 171 | public function getConfiguration()  | 
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| 172 |     { | 
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| 173 | return $this->config;  | 
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| 174 | }  | 
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| 175 | |||
| 176 | /**  | 
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| 177 | * To get all entity set information,  | 
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| 178 | * Note: Wrapper for IMetadataProvider::getResourceSets method implementation,  | 
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| 179 | * This method returns array of ResourceSetWrapper instances but the corresponding IDSMP method  | 
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| 180 | * returns array of ResourceSet instances.  | 
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| 181 | *  | 
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| 182 | * @throws ODataException when two resource sets with the same name are encountered  | 
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| 183 | *  | 
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| 184 | * @return ResourceSetWrapper[] The ResourceSetWrappers for the visible ResourceSets  | 
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| 185 | */  | 
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| 186 | public function getResourceSets()  | 
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| 187 |     { | 
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| 188 | $resourceSets = $this->getMetaProvider()->getResourceSets();  | 
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| 189 | $resourceSetWrappers = [];  | 
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| 190 | $resourceSetNames = [];  | 
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| 191 |         foreach ($resourceSets as $resourceSet) { | 
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| 192 | $name = $resourceSet->getName();  | 
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| 193 |             if (in_array($name, $resourceSetNames)) { | 
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| 194 | throw new ODataException(Messages::providersWrapperEntitySetNameShouldBeUnique($name), 500);  | 
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| 195 | }  | 
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| 196 | |||
| 197 | $resourceSetNames[] = $name;  | 
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| 198 | $resourceSetWrapper = $this->validateResourceSetAndGetWrapper($resourceSet);  | 
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| 199 |             if (null !== $resourceSetWrapper) { | 
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| 200 | $resourceSetWrappers[] = $resourceSetWrapper;  | 
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| 201 | }  | 
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| 202 | }  | 
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| 203 | |||
| 204 | return $resourceSetWrappers;  | 
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| 205 | }  | 
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| 206 | |||
| 207 | /**  | 
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| 208 | * This function perform the following operations  | 
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| 209 | * (1) If the cache contain an entry [key, value] for the resourceset then  | 
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| 210 | * return the entry-value  | 
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| 211 | * (2) If the cache not contain an entry for the resourceset then validate  | 
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| 212 | * the resourceset  | 
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| 213 | * (a) If valid add entry as [resouceset_name, resourceSetWrapper]  | 
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| 214 | * (b) if not valid add entry as [resouceset_name, null]  | 
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| 215 | * Note: validating a resourceset means checking the resourceset is visible  | 
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| 216 | * or not using configuration.  | 
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| 217 | *  | 
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| 218 | * @param ResourceSet $resourceSet The resourceset to validate and get the  | 
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| 219 | * wrapper for  | 
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| 220 | *  | 
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| 221 | * @return ResourceSetWrapper|null Returns an instance if a resource set with the given name is visible  | 
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| 222 | */  | 
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| 223 | private function validateResourceSetAndWrapper(ResourceSet $resourceSet)  | 
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| 224 |     { | 
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| 225 | $cacheKey = $resourceSet->getName();  | 
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| 226 |         if (array_key_exists($cacheKey, $this->setWrapperCache)) { | 
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| 227 | return $this->setWrapperCache[$cacheKey];  | 
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| 228 | }  | 
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| 229 | |||
| 230 | $this->validateResourceType($resourceSet->getResourceType());  | 
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| 231 | $wrapper = new ResourceSetWrapper($resourceSet, $this->config);  | 
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| 232 | $nuVal = $wrapper->isVisible() ? $wrapper : null;  | 
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| 233 | $this->setWrapperCache[$cacheKey] = $nuVal;  | 
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| 234 | |||
| 235 | return $this->setWrapperCache[$cacheKey];  | 
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| 236 | }  | 
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| 237 | |||
| 238 | /**  | 
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| 239 | * Validates the given instance of ResourceType.  | 
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| 240 | *  | 
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| 241 | * @param ResourceType $resourceType The ResourceType to validate  | 
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| 242 | *  | 
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| 243 | * @throws ODataException Exception if $resourceType is invalid  | 
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| 244 | *  | 
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| 245 | * @return ResourceType  | 
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| 246 | */  | 
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| 247 | private function validateResourceType(ResourceType $resourceType)  | 
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| 248 |     { | 
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| 249 | $cacheKey = $resourceType->getName();  | 
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| 250 |         if (array_key_exists($cacheKey, $this->typeCache)) { | 
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| 251 | return $this->typeCache[$cacheKey];  | 
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| 252 | }  | 
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| 253 | |||
| 254 | //TODO: Do validation if any for the ResourceType  | 
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| 255 | $this->typeCache[$cacheKey] = $resourceType;  | 
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| 256 | |||
| 257 | return $resourceType;  | 
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| 258 | }  | 
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| 259 | |||
| 260 | /**  | 
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| 261 | * To get all resource types in the data source,  | 
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| 262 | * Note: Wrapper for IMetadataProvider::getTypes method implementation.  | 
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| 263 | *  | 
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| 264 | * @throws ODataException  | 
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| 265 | * @return ResourceType[]  | 
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| 266 | */  | 
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| 267 | public function getTypes()  | 
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| 268 |     { | 
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| 269 | $resourceTypes = $this->getMetaProvider()->getTypes();  | 
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| 270 | $resourceTypeNames = [];  | 
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| 271 |         foreach ($resourceTypes as $resourceType) { | 
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| 272 |             if (in_array($resourceType->getName(), $resourceTypeNames)) { | 
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| 273 | throw new ODataException(  | 
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| 274 | Messages::providersWrapperEntityTypeNameShouldBeUnique($resourceType->getName()),  | 
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| 275 | 500  | 
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| 276 | );  | 
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| 277 | }  | 
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| 278 | |||
| 279 | $resourceTypeNames[] = $resourceType->getName();  | 
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| 280 | $this->validateResourceType($resourceType);  | 
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| 281 | }  | 
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| 282 | |||
| 283 | return $resourceTypes;  | 
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| 284 | }  | 
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| 285 | |||
| 286 | public function getSingletons()  | 
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| 287 |     { | 
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| 288 | $singletons = $this->getMetaProvider()->getSingletons();  | 
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| 289 | return (null == $singletons) ? [] : $singletons;  | 
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| 290 | }  | 
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| 291 | |||
| 292 | /**  | 
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| 293 | * To get a resource set based on the specified resource set name which is  | 
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| 294 | * visible,  | 
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| 295 | * Note: Wrapper for IMetadataProvider::resolveResourceSet method  | 
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| 296 | * implementation.  | 
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| 297 | *  | 
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| 298 | * @param string $name Name of the resource set  | 
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| 299 | *  | 
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| 300 | * @return ResourceSetWrapper|null Returns resource set with the given name if found,  | 
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| 301 | * NULL if resource set is set to invisible or not found  | 
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| 302 | */  | 
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| 303 | public function resolveResourceSet($name)  | 
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| 304 |     { | 
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| 305 |         if (array_key_exists($name, $this->setWrapperCache)) { | 
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| 306 | return $this->setWrapperCache[$name];  | 
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| 307 | }  | 
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| 308 | |||
| 309 | $resourceSet = $this->getMetaProvider()->resolveResourceSet($name);  | 
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| 310 |         if (null === $resourceSet) { | 
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| 311 | return null;  | 
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| 312 | }  | 
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| 313 | |||
| 314 | return $this->validateResourceSetAndWrapper($resourceSet);  | 
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| 315 | }  | 
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| 316 | |||
| 317 | /**  | 
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| 318 | * To get a resource type based on the resource set name,  | 
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| 319 | * Note: Wrapper for IMetadataProvider::resolveResourceType  | 
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| 320 | * method implementation.  | 
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| 321 | *  | 
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| 322 | * @param string $name Name of the resource set  | 
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| 323 | *  | 
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| 324 | * @throws ODataException If the ResourceType is invalid  | 
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| 325 | *  | 
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| 326 | * @return ResourceType|null resource type with the given resource set name if found else NULL  | 
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| 327 | */  | 
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| 328 | public function resolveResourceType($name)  | 
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| 329 |     { | 
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| 330 | $resourceType = $this->getMetaProvider()->resolveResourceType($name);  | 
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| 331 |         if (null === $resourceType) { | 
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| 332 | return null;  | 
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| 333 | }  | 
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| 334 | |||
| 335 | return $this->validateResourceType($resourceType);  | 
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| 336 | }  | 
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| 337 | |||
| 338 | /**  | 
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| 339 | * Try to resolve named singleton  | 
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| 340 | *  | 
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| 341 | * @param string $name  | 
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| 342 | * @return mixed|null  | 
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| 343 | */  | 
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| 344 | public function resolveSingleton($name)  | 
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| 345 |     { | 
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| 346 | $singletons = $this->getMetaProvider()->getSingletons();  | 
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| 347 |         if (array_key_exists($name, $singletons)) { | 
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| 348 | return $singletons[$name];  | 
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| 349 | }  | 
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| 350 | return null;  | 
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| 351 | }  | 
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| 352 | |||
| 353 | /**  | 
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| 354 | * The method must return a collection of all the types derived from  | 
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| 355 | * $resourceType The collection returned should NOT include the type  | 
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| 356 | * passed in as a parameter  | 
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| 357 | * Note: Wrapper for IMetadataProvider::getDerivedTypes  | 
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| 358 | * method implementation.  | 
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| 359 | *  | 
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| 360 | * @param ResourceEntityType $resourceType Resource to get derived resource types from  | 
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| 361 | *  | 
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| 362 | * @throws InvalidOperationException when the meat provider doesn't return an array  | 
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| 363 | *  | 
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| 364 | * @return ResourceType[]  | 
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| 365 | */  | 
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| 366 | public function getDerivedTypes(ResourceEntityType $resourceType)  | 
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| 367 |     { | 
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| 368 | $derivedTypes = $this->getMetaProvider()->getDerivedTypes($resourceType);  | 
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| 369 |         if (!is_array($derivedTypes)) { | 
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| 370 | throw new InvalidOperationException(  | 
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| 371 | Messages::metadataAssociationTypeSetInvalidGetDerivedTypesReturnType($resourceType->getName())  | 
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| 372 | );  | 
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| 373 | }  | 
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| 374 | |||
| 375 |         foreach ($derivedTypes as $derivedType) { | 
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| 376 | $this->validateResourceType($derivedType);  | 
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| 377 | }  | 
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| 378 | |||
| 379 | return $derivedTypes;  | 
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| 380 | }  | 
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| 381 | |||
| 382 | /**  | 
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| 383 | * Returns true if $resourceType represents an Entity Type which has derived  | 
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| 384 | * Entity Types, else false.  | 
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| 385 | * Note: Wrapper for IMetadataProvider::hasDerivedTypes method implementation.  | 
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| 386 | *  | 
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| 387 | * @param ResourceEntityType $resourceType Resource to check for derived resource types  | 
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| 388 | *  | 
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| 389 | * @throws ODataException If the ResourceType is invalid  | 
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| 390 | *  | 
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| 391 | * @return bool  | 
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| 392 | */  | 
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| 393 | public function hasDerivedTypes(ResourceEntityType $resourceType)  | 
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| 394 |     { | 
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| 395 | $this->validateResourceType($resourceType);  | 
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| 396 | |||
| 397 | return $this->getMetaProvider()->hasDerivedTypes($resourceType);  | 
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| 398 | }  | 
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| 399 | |||
| 400 | /**  | 
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| 401 | * Gets the visible resource properties for the given resource type from the given resource set wrapper.  | 
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| 402 | *  | 
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| 403 | * @param ResourceSetWrapper $setWrapper Resource set wrapper in question  | 
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| 404 | * @param ResourceType $resourceType Resource type in question  | 
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| 405 | *  | 
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| 406 | * @return ResourceProperty[] Collection of visible resource properties from the given resource set wrapper  | 
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| 407 | * and resource type  | 
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| 408 | */  | 
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| 409 | public function getResourceProperties(ResourceSetWrapper $setWrapper, ResourceType $resourceType)  | 
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| 410 |     { | 
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| 411 |         if (!$resourceType instanceof ResourceEntityType) { | 
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| 412 | //Complex resource type  | 
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| 413 | return $resourceType->getAllProperties();  | 
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| 414 | }  | 
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| 415 | //TODO: move this to doctrine annotations  | 
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| 416 | $cacheKey = $setWrapper->getName() . '_' . $resourceType->getFullName();  | 
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| 417 |         if (!array_key_exists($cacheKey, $this->propertyCache)) { | 
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| 418 | //Fill the cache  | 
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| 419 | $this->propertyCache[$cacheKey] = [];  | 
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| 420 |             foreach ($resourceType->getAllProperties() as $resourceProperty) { | 
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| 421 | $this->propertyCache[$cacheKey][$resourceProperty->getName()] = $resourceProperty;  | 
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| 422 | }  | 
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| 423 | }  | 
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| 424 | |||
| 425 | return $this->propertyCache[$cacheKey];  | 
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| 426 | }  | 
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| 427 | |||
| 428 | /**  | 
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| 429 | * Gets the target resource set wrapper for the given navigation property,  | 
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| 430 | * source resource set wrapper and the source resource type.  | 
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| 431 | *  | 
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| 432 | * @param ResourceSetWrapper $resourceSetWrapper Source resource set  | 
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| 433 | * @param ResourceEntityType $resourceType Source resource type  | 
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| 434 | * @param ResourceProperty $navigationResourceProperty Navigation property  | 
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| 435 | *  | 
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| 436 | * @return ResourceSetWrapper|null Returns instance of ResourceSetWrapper  | 
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| 437 | * (describes the entity set and associated configuration) for the  | 
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| 438 | * given navigation property. returns NULL if resourceset for the  | 
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| 439 | * navigation property is invisible or if metadata provider returns  | 
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| 440 | * null resource association set  | 
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| 441 | */  | 
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| 442 | public function getResourceSetWrapperForNavigationProperty(  | 
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| 466 | |||
| 467 | /**  | 
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| 468 | * Gets the ResourceAssociationSet instance for the given source association end,  | 
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| 469 | * Note: Wrapper for IMetadataProvider::getResourceAssociationSet  | 
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| 470 | * method implementation.  | 
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| 471 | *  | 
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| 472 | * @param ResourceSet $set Resource set of the source association end  | 
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| 473 | * @param ResourceEntityType $type Resource type of the source association end  | 
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| 474 | * @param ResourceProperty $property Resource property of the source association end  | 
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| 475 | *  | 
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| 476 | * @throws ODataException  | 
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| 477 | * @return ResourceAssociationSet|null Returns ResourceAssociationSet for the source  | 
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| 478 | * association end, NULL if no such  | 
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| 479 | * association end or resource set in the  | 
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| 480 | * other end of the association is invisible  | 
            ||
| 481 | */  | 
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| 482 | public function getResourceAssociationSet(  | 
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| 483 | ResourceSet $set,  | 
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| 484 | ResourceEntityType $type,  | 
            ||
| 485 | ResourceProperty $property  | 
            ||
| 486 |     ) { | 
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| 487 | $type = $this->getResourceTypeWherePropertyIsDeclared($type, $property);  | 
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| 488 | // usage below requires $type to not be null - so kaboom as early as possible  | 
            ||
| 489 | assert(null != $type, 'Resource type obtained from property must not be null.');  | 
            ||
| 490 | assert($type instanceof ResourceEntityType);  | 
            ||
| 491 | |||
| 492 | $associationSet = $this->getMetaProvider()->getResourceAssociationSet(  | 
            ||
| 493 | $set,  | 
            ||
| 494 | $type,  | 
            ||
| 495 | $property  | 
            ||
| 496 | );  | 
            ||
| 497 | assert(  | 
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| 498 | null == $associationSet || $associationSet instanceof ResourceAssociationSet,  | 
            ||
| 499 | 'Retrieved resource association must be either null or an instance of ResourceAssociationSet'  | 
            ||
| 500 | );  | 
            ||
| 501 | |||
| 502 |         if (null !== $associationSet) { | 
            ||
| 503 | $thisAssociationSetEnd = $associationSet->getResourceAssociationSetEnd(  | 
            ||
| 504 | $set,  | 
            ||
| 505 | $type,  | 
            ||
| 506 | $property  | 
            ||
| 507 | );  | 
            ||
| 508 | |||
| 509 | $relatedAssociationSetEnd = $associationSet->getRelatedResourceAssociationSetEnd(  | 
            ||
| 510 | $set,  | 
            ||
| 511 | $type,  | 
            ||
| 512 | $property  | 
            ||
| 513 | );  | 
            ||
| 514 | |||
| 515 | //If either $thisAssociationSetEnd and/or $relatedAssociationSetEnd  | 
            ||
| 516 | //is null means the associationset we got from the IDSMP::getResourceAssociationSet is invalid.  | 
            ||
| 517 | |||
| 518 | //Return null, if either AssociationSet's End1 or End2's resourceset name  | 
            ||
| 519 | //doesn't match the name of resource set wrapper (param1) and resource type is not assignable  | 
            ||
| 520 | //from given resource type (param2)  | 
            ||
| 521 |             if (null === $thisAssociationSetEnd || null === $relatedAssociationSetEnd) { | 
            ||
| 522 | throw new ODataException(  | 
            ||
| 523 | Messages::providersWrapperIDSMPGetResourceSetReturnsInvalidResourceSet(  | 
            ||
| 524 | $set->getName(),  | 
            ||
| 525 | $type->getFullName(),  | 
            ||
| 526 | $property->getName()  | 
            ||
| 527 | ),  | 
            ||
| 528 | 500  | 
            ||
| 529 | );  | 
            ||
| 530 | }  | 
            ||
| 531 | |||
| 532 | $relatedResourceSetWrapper = $this->validateResourceSetAndWrapper(  | 
            ||
| 533 | $relatedAssociationSetEnd->getResourceSet()  | 
            ||
| 534 | );  | 
            ||
| 535 |             if ($relatedResourceSetWrapper === null) { | 
            ||
| 536 | $associationSet = null;  | 
            ||
| 537 |             } else { | 
            ||
| 538 | $this->validateResourceType($thisAssociationSetEnd->getResourceType());  | 
            ||
| 539 | $this->validateResourceType($relatedAssociationSetEnd->getResourceType());  | 
            ||
| 540 | }  | 
            ||
| 541 | }  | 
            ||
| 542 | assert(  | 
            ||
| 543 | null == $associationSet || $associationSet instanceof ResourceAssociationSet,  | 
            ||
| 544 | 'Retrieved resource assocation must be either null or an instance of ResourceAssociationSet'  | 
            ||
| 545 | );  | 
            ||
| 546 | |||
| 547 | return $associationSet;  | 
            ||
| 548 | }  | 
            ||
| 549 | |||
| 550 | /**  | 
            ||
| 551 | * Gets the resource type on which the resource property is declared on,  | 
            ||
| 552 | * If property is not declared in the given resource type, then this  | 
            ||
| 553 | * function drill down to the inheritance hierarchy of the given resource  | 
            ||
| 554 | * type to find out the base class in which the property is declared.  | 
            ||
| 555 | *  | 
            ||
| 556 | * @param ResourceType $type The resource type to start looking  | 
            ||
| 557 | * @param ResourceProperty $property The resource property in question  | 
            ||
| 558 | *  | 
            ||
| 559 | * @return ResourceType|null Returns reference to the ResourceType on which  | 
            ||
| 560 | * the $property is declared, NULL if  | 
            ||
| 561 | * $property is not declared anywhere  | 
            ||
| 562 | * in the inheritance hierarchy  | 
            ||
| 563 | */  | 
            ||
| 564 | private function getResourceTypeWherePropertyIsDeclared(ResourceType $type, ResourceProperty $property)  | 
            ||
| 565 |     { | 
            ||
| 566 |         while (null !== $type) { | 
            ||
| 567 |             if (null !== $type->resolvePropertyDeclaredOnThisType($property->getName())) { | 
            ||
| 568 | break;  | 
            ||
| 569 | }  | 
            ||
| 570 | |||
| 571 | $type = $type->getBaseType();  | 
            ||
| 572 | }  | 
            ||
| 573 | |||
| 574 | return $type;  | 
            ||
| 575 | }  | 
            ||
| 576 | |||
| 577 | /**  | 
            ||
| 578 | * Wrapper function over _validateResourceSetAndGetWrapper function.  | 
            ||
| 579 | *  | 
            ||
| 580 | * @param ResourceSet $resourceSet see the comments of _validateResourceSetAndGetWrapper  | 
            ||
| 581 | *  | 
            ||
| 582 | * @return ResourceSetWrapper|null see the comments of _validateResourceSetAndGetWrapper  | 
            ||
| 583 | */  | 
            ||
| 584 | public function validateResourceSetAndGetWrapper(ResourceSet $resourceSet)  | 
            ||
| 585 |     { | 
            ||
| 586 | return $this->validateResourceSetAndWrapper($resourceSet);  | 
            ||
| 587 | }  | 
            ||
| 588 | |||
| 589 | /**  | 
            ||
| 590 | * Gets the Edm Schema version compliance to the metadata.  | 
            ||
| 591 | *  | 
            ||
| 592 | * @return EdmSchemaVersion  | 
            ||
| 593 | */  | 
            ||
| 594 | public function getEdmSchemaVersion()  | 
            ||
| 595 |     { | 
            ||
| 596 | //The minimal schema version for custom provider is 1.1  | 
            ||
| 597 | return EdmSchemaVersion::VERSION_1_DOT_1;  | 
            ||
| 598 | }  | 
            ||
| 599 | |||
| 600 | /**  | 
            ||
| 601 | * Gets the underlying custom expression provider, the end developer is  | 
            ||
| 602 | * responsible for implementing IExpressionProvider if he choose for.  | 
            ||
| 603 | *  | 
            ||
| 604 | * @return IExpressionProvider Instance of IExpressionProvider implementation  | 
            ||
| 605 | */  | 
            ||
| 606 | public function getExpressionProvider()  | 
            ||
| 607 |     { | 
            ||
| 608 | return $this->getProviderWrapper()->getExpressionProvider();  | 
            ||
| 609 | }  | 
            ||
| 610 | |||
| 611 | /**  | 
            ||
| 612 | * Indicates if the QueryProvider can handle ordered paging, this means respecting order, skip, and top parameters  | 
            ||
| 613 | * If the query provider can not handle ordered paging, it must return the entire result set and POData will  | 
            ||
| 614 | * perform the ordering and paging.  | 
            ||
| 615 | *  | 
            ||
| 616 | * @return bool True if the query provider can handle ordered paging, false if POData should perform the paging  | 
            ||
| 617 | */  | 
            ||
| 618 | public function handlesOrderedPaging()  | 
            ||
| 619 |     { | 
            ||
| 620 | return $this->getProviderWrapper()->handlesOrderedPaging();  | 
            ||
| 621 | }  | 
            ||
| 622 | |||
| 623 | /**  | 
            ||
| 624 | * Gets collection of entities belongs to an entity set.  | 
            ||
| 625 | *  | 
            ||
| 626 | * @param QueryType $queryType Indicates if this is a query for a count, entities, or entities  | 
            ||
| 627 | * with a count  | 
            ||
| 628 | * @param ResourceSet $resourceSet The entity set containing the entities that need to be fetched  | 
            ||
| 629 | * @param FilterInfo|null $filterInfo Represents the $filter parameter of the OData query.  | 
            ||
| 630 | * NULL if no $filter specified  | 
            ||
| 631 | * @param InternalOrderByInfo|null $orderBy The orderBy information  | 
            ||
| 632 | * @param integer|null $top The top count  | 
            ||
| 633 | * @param integer|null $skip The skip count  | 
            ||
| 634 | * @param SkipTokenInfo|null $skipToken The skip token  | 
            ||
| 635 | *  | 
            ||
| 636 | * @return QueryResult  | 
            ||
| 637 | */  | 
            ||
| 638 | public function getResourceSet(  | 
            ||
| 639 | QueryType $queryType,  | 
            ||
| 640 | ResourceSet $resourceSet,  | 
            ||
| 641 | FilterInfo $filterInfo = null,  | 
            ||
| 642 | InternalOrderByInfo $orderBy = null,  | 
            ||
| 643 | $top = null,  | 
            ||
| 644 | $skip = null,  | 
            ||
| 645 | SkipTokenInfo $skipToken = null  | 
            ||
| 646 |     ) { | 
            ||
| 647 | return $this->getProviderWrapper()->getResourceSet(  | 
            ||
| 648 | $queryType,  | 
            ||
| 649 | $resourceSet,  | 
            ||
| 650 | $filterInfo,  | 
            ||
| 651 | $orderBy,  | 
            ||
| 652 | $top,  | 
            ||
| 653 | $skip,  | 
            ||
| 654 | $skipToken  | 
            ||
| 655 | );  | 
            ||
| 656 | }  | 
            ||
| 657 | |||
| 658 | /**  | 
            ||
| 659 | * Gets an entity instance from an entity set identified by a key.  | 
            ||
| 660 | *  | 
            ||
| 661 | * @param ResourceSet $resourceSet The entity set containing the entity to fetch  | 
            ||
| 662 | * @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch  | 
            ||
| 663 | *  | 
            ||
| 664 | * @return object|null Returns entity instance if found, else null  | 
            ||
| 665 | */  | 
            ||
| 666 | public function getResourceFromResourceSet(ResourceSet $resourceSet, KeyDescriptor $keyDescriptor)  | 
            ||
| 667 |     { | 
            ||
| 668 | return $this->getProviderWrapper()->getResourceFromResourceSet($resourceSet, $keyDescriptor);  | 
            ||
| 669 | }  | 
            ||
| 670 | |||
| 671 | /**  | 
            ||
| 672 | * Puts an entity instance to entity set identified by a key.  | 
            ||
| 673 | *  | 
            ||
| 674 | * @param ResourceSet $resourceSet The entity set containing the entity to update  | 
            ||
| 675 | * @param KeyDescriptor $keyDescriptor The key identifying the entity to update  | 
            ||
| 676 | * @param mixed $data  | 
            ||
| 677 | *  | 
            ||
| 678 | * @return bool|null Returns result of executing query  | 
            ||
| 679 | */  | 
            ||
| 680 | public function putResource(  | 
            ||
| 681 | ResourceSet $resourceSet,  | 
            ||
| 682 | KeyDescriptor $keyDescriptor,  | 
            ||
| 683 | $data  | 
            ||
| 684 |     ) { | 
            ||
| 685 | return $this->getProviderWrapper()->putResource(  | 
            ||
| 686 | $resourceSet,  | 
            ||
| 687 | $keyDescriptor,  | 
            ||
| 688 | $data  | 
            ||
| 689 | );  | 
            ||
| 690 | }  | 
            ||
| 691 | |||
| 692 | /**  | 
            ||
| 693 | * Get related resource set for a resource.  | 
            ||
| 694 | *  | 
            ||
| 695 | * @param QueryType $queryType Indicates if this is a query for a count, entities, or entities  | 
            ||
| 696 | * with a count  | 
            ||
| 697 | * @param ResourceSet $sourceResourceSet The entity set containing the source entity  | 
            ||
| 698 | * @param object $sourceEntity The source entity instance  | 
            ||
| 699 | * @param ResourceSet $targetResourceSet The resource set containing the target of the navigation property  | 
            ||
| 700 | * @param ResourceProperty $targetProperty The navigation property to retrieve  | 
            ||
| 701 | * @param FilterInfo|null $filterInfo Represents the $filter parameter of the OData query.  | 
            ||
| 702 | * NULL if no $filter specified  | 
            ||
| 703 | * @param mixed $orderBy sorted order if we want to get the data in some specific order  | 
            ||
| 704 | * @param int $top number of records which need to be retrieved  | 
            ||
| 705 | * @param int $skip number of records which need to be skipped  | 
            ||
| 706 | * @param SkipTokenInfo|null $skipToken value indicating what records to skip  | 
            ||
| 707 | *  | 
            ||
| 708 | * @throws ODataException  | 
            ||
| 709 | *  | 
            ||
| 710 | * @return QueryResult  | 
            ||
| 711 | */  | 
            ||
| 712 | public function getRelatedResourceSet(  | 
            ||
| 713 | QueryType $queryType,  | 
            ||
| 714 | ResourceSet $sourceResourceSet,  | 
            ||
| 715 | $sourceEntity,  | 
            ||
| 716 | ResourceSet $targetResourceSet,  | 
            ||
| 717 | ResourceProperty $targetProperty,  | 
            ||
| 718 | $filterInfo,  | 
            ||
| 719 | $orderBy,  | 
            ||
| 720 | $top,  | 
            ||
| 721 | $skip,  | 
            ||
| 722 | SkipTokenInfo $skipToken = null  | 
            ||
| 723 |     ) { | 
            ||
| 724 | return $this->getProviderWrapper()->getRelatedResourceSet(  | 
            ||
| 725 | $queryType,  | 
            ||
| 726 | $sourceResourceSet,  | 
            ||
| 727 | $sourceEntity,  | 
            ||
| 728 | $targetResourceSet,  | 
            ||
| 729 | $targetProperty,  | 
            ||
| 730 | $filterInfo,  | 
            ||
| 731 | $orderBy,  | 
            ||
| 732 | $top,  | 
            ||
| 733 | $skip,  | 
            ||
| 734 | $skipToken  | 
            ||
| 735 | );  | 
            ||
| 736 | }  | 
            ||
| 737 | |||
| 738 | /**  | 
            ||
| 739 | * Gets a related entity instance from an entity set identified by a key.  | 
            ||
| 740 | *  | 
            ||
| 741 | * @param ResourceSet $sourceResourceSet The entity set related to the entity to be fetched  | 
            ||
| 742 | * @param object $sourceEntity The related entity instance  | 
            ||
| 743 | * @param ResourceSet $targetResourceSet The entity set from which entity needs to be fetched  | 
            ||
| 744 | * @param ResourceProperty $targetProperty The metadata of the target property  | 
            ||
| 745 | * @param KeyDescriptor $keyDescriptor The key to identify the entity to be fetched  | 
            ||
| 746 | *  | 
            ||
| 747 | * @return object|null Returns entity instance if found, else null  | 
            ||
| 748 | */  | 
            ||
| 749 | public function getResourceFromRelatedResourceSet(  | 
            ||
| 750 | ResourceSet $sourceResourceSet,  | 
            ||
| 751 | $sourceEntity,  | 
            ||
| 752 | ResourceSet $targetResourceSet,  | 
            ||
| 753 | ResourceProperty $targetProperty,  | 
            ||
| 754 | KeyDescriptor $keyDescriptor  | 
            ||
| 755 |     ) { | 
            ||
| 756 | return $this->getProviderWrapper()->getResourceFromRelatedResourceSet(  | 
            ||
| 757 | $sourceResourceSet,  | 
            ||
| 758 | $sourceEntity,  | 
            ||
| 759 | $targetResourceSet,  | 
            ||
| 760 | $targetProperty,  | 
            ||
| 761 | $keyDescriptor  | 
            ||
| 762 | );  | 
            ||
| 763 | }  | 
            ||
| 764 | |||
| 765 | /**  | 
            ||
| 766 | * Get related resource for a resource.  | 
            ||
| 767 | *  | 
            ||
| 768 | * @param ResourceSet $sourceResourceSet The source resource set  | 
            ||
| 769 | * @param object $sourceEntity The source resource  | 
            ||
| 770 | * @param ResourceSet $targetResourceSet The resource set of the navigation  | 
            ||
| 771 | * property  | 
            ||
| 772 | * @param ResourceProperty $targetProperty The navigation property to be  | 
            ||
| 773 | * retrieved  | 
            ||
| 774 | *  | 
            ||
| 775 | * @return object|null The related resource if exists, else null  | 
            ||
| 776 | */  | 
            ||
| 777 | public function getRelatedResourceReference(  | 
            ||
| 778 | ResourceSet $sourceResourceSet,  | 
            ||
| 779 | $sourceEntity,  | 
            ||
| 780 | ResourceSet $targetResourceSet,  | 
            ||
| 781 | ResourceProperty $targetProperty  | 
            ||
| 782 |     ) { | 
            ||
| 783 | return $this->getProviderWrapper()->getRelatedResourceReference(  | 
            ||
| 784 | $sourceResourceSet,  | 
            ||
| 785 | $sourceEntity,  | 
            ||
| 786 | $targetResourceSet,  | 
            ||
| 787 | $targetProperty  | 
            ||
| 788 | );  | 
            ||
| 789 | }  | 
            ||
| 790 | |||
| 791 | /**  | 
            ||
| 792 | * Updates a resource.  | 
            ||
| 793 | *  | 
            ||
| 794 | * @param ResourceSet $sourceResourceSet The entity set containing the source entity  | 
            ||
| 795 | * @param object $sourceEntityInstance The source entity instance  | 
            ||
| 796 | * @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch  | 
            ||
| 797 | * @param object $data the New data for the entity instance  | 
            ||
| 798 | * @param bool $shouldUpdate Should undefined values be updated or reset to default  | 
            ||
| 799 | *  | 
            ||
| 800 | * @return object|null the new resource value if it is assignable, or throw exception for null  | 
            ||
| 801 | */  | 
            ||
| 802 | public function updateResource(  | 
            ||
| 803 | ResourceSet $sourceResourceSet,  | 
            ||
| 804 | $sourceEntityInstance,  | 
            ||
| 805 | KeyDescriptor $keyDescriptor,  | 
            ||
| 806 | $data,  | 
            ||
| 807 | $shouldUpdate = false  | 
            ||
| 808 |     ) { | 
            ||
| 809 | return $this->getProviderWrapper()->updateResource(  | 
            ||
| 810 | $sourceResourceSet,  | 
            ||
| 811 | $sourceEntityInstance,  | 
            ||
| 812 | $keyDescriptor,  | 
            ||
| 813 | $data,  | 
            ||
| 814 | $shouldUpdate  | 
            ||
| 815 | );  | 
            ||
| 816 | }  | 
            ||
| 817 | |||
| 818 | /**  | 
            ||
| 819 | * Delete resource from a resource set.  | 
            ||
| 820 | *  | 
            ||
| 821 | * @param ResourceSet $sourceResourceSet  | 
            ||
| 822 | * @param object $sourceEntityInstance  | 
            ||
| 823 | *  | 
            ||
| 824 | * @return bool true if resources successfully deleted, otherwise false  | 
            ||
| 825 | */  | 
            ||
| 826 | public function deleteResource(  | 
            ||
| 827 | ResourceSet $sourceResourceSet,  | 
            ||
| 828 | $sourceEntityInstance  | 
            ||
| 829 |     ) { | 
            ||
| 830 | return $this->getProviderWrapper()->deleteResource(  | 
            ||
| 831 | $sourceResourceSet,  | 
            ||
| 832 | $sourceEntityInstance  | 
            ||
| 833 | );  | 
            ||
| 834 | }  | 
            ||
| 835 | |||
| 836 | /**  | 
            ||
| 837 | * @param ResourceSet $resourceSet The entity set containing the entity to fetch  | 
            ||
| 838 | * @param object $sourceEntityInstance The source entity instance  | 
            ||
| 839 | * @param object $data The New data for the entity instance.  | 
            ||
| 840 | *  | 
            ||
| 841 | * @return object|null returns the newly created model if successful, or null if model creation failed.  | 
            ||
| 842 | */  | 
            ||
| 843 | public function createResourceforResourceSet(  | 
            ||
| 844 | ResourceSet $resourceSet,  | 
            ||
| 845 | $sourceEntityInstance,  | 
            ||
| 846 | $data  | 
            ||
| 847 |     ) { | 
            ||
| 848 | return $this->getProviderWrapper()->createResourceforResourceSet(  | 
            ||
| 849 | $resourceSet,  | 
            ||
| 850 | $sourceEntityInstance,  | 
            ||
| 851 | $data  | 
            ||
| 852 | );  | 
            ||
| 853 | }  | 
            ||
| 854 | |||
| 855 | /**  | 
            ||
| 856 | * @return mixed  | 
            ||
| 857 | */  | 
            ||
| 858 | public function getMetadataXML()  | 
            ||
| 862 | }  | 
            ||
| 863 | 
This check marks private properties in classes that are never used. Those properties can be removed.