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<?php |
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declare(strict_types=1); |
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namespace POData\Readers\Atom; |
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use POData\Common\MimeTypes; |
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use POData\Common\ODataConstants; |
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use POData\ObjectModel\ODataEntry; |
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use POData\ObjectModel\ODataFeed; |
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use POData\Readers\Atom\Processors\BaseNodeHandler; |
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use POData\Readers\Atom\Processors\EntryProcessor; |
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use POData\Readers\Atom\Processors\FeedProcessor; |
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use POData\Readers\IODataReader; |
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use SplStack; |
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class AtomODataReader implements IODataReader |
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{ |
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/** |
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* XmlParser. |
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* |
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* @var resource |
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*/ |
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private $parser; |
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/** |
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* @var SplStack|BaseNodeHandler[] |
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*/ |
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private $stack; |
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/** |
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* @var ODataFeed|ODataEntry |
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*/ |
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private $objectModel = []; |
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public function __construct() |
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{ |
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$this->parser = xml_parser_create_ns('UTF-8', '|'); |
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xml_set_object($this->parser, $this); |
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xml_set_element_handler($this->parser, [$this, 'tagOpen'], [$this, 'tagClose']); |
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xml_set_character_data_handler($this->parser, [$this, 'characterData']); |
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xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0); |
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$this->stack = new SplStack(); |
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} |
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public function __destruct() |
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{ |
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xml_parser_free($this->parser); |
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} |
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public function read($data) |
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{ |
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xml_parse($this->parser, $data, true); |
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return $this->objectModel; |
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} |
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public function characterData($parser, $data) |
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{ |
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if ($this->stack->isEmpty()) { |
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throw new \ParseError('encountered character data outside of xml tag'); |
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} |
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$this->stack->top()->handleCharacterData($data); |
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} |
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public function tagOpen($parser, $tag, $attributes) |
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{ |
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switch (strtolower($tag)) { |
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case strtolower(ODataConstants::ATOM_NAMESPACE . '|' . ODataConstants::ATOM_FEED_ELEMENT_NAME): |
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$this->stack->push(new FeedProcessor()); |
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break; |
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case strtolower(ODataConstants::ATOM_NAMESPACE . '|' . ODataConstants::ATOM_ENTRY_ELEMENT_NAME): |
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$this->stack->push(new EntryProcessor()); |
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break; |
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default: |
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if ($this->stack->isEmpty()) { |
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throw new \ParseError(sprintf('encountered node %s while not in a feed or a stack', $tag)); |
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} |
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list($namespsace, $name) = explode('|', $tag); |
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$this->stack->top()->handleStartNode($namespsace, $name, $attributes); |
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} |
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} |
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public function tagClose($parser, $tag) |
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{ |
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switch (strtolower($tag)) { |
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case strtolower(ODataConstants::ATOM_NAMESPACE . '|' . ODataConstants::ATOM_FEED_ELEMENT_NAME): |
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case strtolower(ODataConstants::ATOM_NAMESPACE . '|' . ODataConstants::ATOM_ENTRY_ELEMENT_NAME): |
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$process = $this->stack->pop(); |
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if ($this->stack->isEmpty()) { |
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$this->objectModel = $process->getObjetModelObject(); |
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} else { |
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$this->stack->top()->handleChildComplete($process->getObjetModelObject()); |
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} |
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break; |
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default: |
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if ($this->stack->isEmpty()) { |
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throw new \ParseError('encountered node %s while not in a feed or a stack'); |
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} |
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list($namespsace, $name) = explode('|', $tag); |
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$this->stack->top()->handleEndNode($namespsace, $name); |
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} |
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} |
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public function canHandle(\POData\Common\Version $responseVersion, $contentType) |
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{ |
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return MimeTypes::MIME_APPLICATION_ATOM == $contentType || MimeTypes::MIME_APPLICATION_XML === $contentType; |
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} |
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} |
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Algo-Web /
POData
