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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\CommunityConfiguration\Schema; |
| 4 | |
| 5 | use LogicException; |
| 6 | use Wikimedia\ObjectFactory\ObjectFactory; |
| 7 | |
| 8 | /** |
| 9 | * Construct an ISchemaConverter for a specified version and schema. |
| 10 | */ |
| 11 | class SchemaConverterFactory { |
| 12 | |
| 13 | private ObjectFactory $objectFactory; |
| 14 | |
| 15 | public function __construct( ObjectFactory $objectFactory ) { |
| 16 | $this->objectFactory = $objectFactory; |
| 17 | } |
| 18 | |
| 19 | /** |
| 20 | * Construct a ISchemaConverter from a class name |
| 21 | * |
| 22 | * @param string|null $className |
| 23 | * @return ISchemaConverter|null |
| 24 | */ |
| 25 | private function getSchemaConverterFromClass( ?string $className ): ?ISchemaConverter { |
| 26 | if ( $className === null ) { |
| 27 | return null; |
| 28 | } |
| 29 | |
| 30 | // ObjectFactory::createObject supports arrays as its arguments, not just callables |
| 31 | // Link to Phan bug: https://github.com/phan/phan/issues/1648 |
| 32 | // @phan-suppress-next-line PhanTypeInvalidCallableArraySize |
| 33 | $res = $this->objectFactory->createObject( [ |
| 34 | // ObjectFactory::createObject supports arrays as its arguments, not just callables |
| 35 | // Link to Phan bug: https://github.com/phan/phan/issues/1648 |
| 36 | // @phan-suppress-next-line PhanTypeInvalidCallableArraySize |
| 37 | 'class' => $className |
| 38 | ], [ |
| 39 | 'assertClass' => ISchemaConverter::class, |
| 40 | ] ); |
| 41 | |
| 42 | // NOTE: This is here to allow for type hints. |
| 43 | if ( !$res instanceof ISchemaConverter ) { |
| 44 | throw new LogicException( 'ObjectFactory\'s assertion is invalid' ); |
| 45 | } |
| 46 | |
| 47 | return $res; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Get an appropriate SchemaReader for given version |
| 52 | * |
| 53 | * @param SchemaBuilder $schemaBuilder |
| 54 | * @param string|null $version Version (null for latest) |
| 55 | * @return SchemaReader |
| 56 | */ |
| 57 | private function getSchemaReader( |
| 58 | SchemaBuilder $schemaBuilder, |
| 59 | ?string $version = null |
| 60 | ): SchemaReader { |
| 61 | if ( $version === null ) { |
| 62 | return $schemaBuilder->getSchemaReader(); |
| 63 | } |
| 64 | |
| 65 | return $schemaBuilder->getVersionManager() |
| 66 | ->getVersionForSchema( $version ); |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Construct a schema converter for a particular version |
| 71 | * |
| 72 | * @param SchemaBuilder $schemaBuilder |
| 73 | * @param string|null $version Version (null for latest) |
| 74 | * @return ISchemaConverter|null |
| 75 | */ |
| 76 | public function getConverterFromVersion( |
| 77 | SchemaBuilder $schemaBuilder, |
| 78 | ?string $version = null |
| 79 | ): ?ISchemaConverter { |
| 80 | $schemaReader = $this->getSchemaReader( $schemaBuilder, $version ); |
| 81 | return $this->getSchemaConverterFromClass( $schemaReader->getSchemaConverterId() ); |
| 82 | } |
| 83 | } |