68 lines
2.2 KiB
PHP
68 lines
2.2 KiB
PHP
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<?php
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class OAI2XML {
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public $doc; // DOMDocument. Handle of current XML Document object
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function __construct($request_args) {
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$this->doc = new DOMDocument("1.0","UTF-8");
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$oai_node = $this->doc->createElement("OAI-PMH");
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$oai_node->setAttribute("xmlns","http://www.openarchives.org/OAI/2.0/");
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$oai_node->setAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance");
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$oai_node->setAttribute("xsi:schemaLocation","http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd");
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$this->addChild($oai_node,"responseDate",gmdate("Y-m-d\TH:i:s\Z"));
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$this->doc->appendChild($oai_node);
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$request = $this->addChild($this->doc->documentElement,"request",MY_URI);
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foreach($request_args as $key => $value) {
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$request->setAttribute($key,$value);
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}
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}
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function display() {
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$pr = new DOMDocument();
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$pr->preserveWhiteSpace = false;
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$pr->formatOutput = true;
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$pr->loadXML($this->doc->saveXML());
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echo $pr->saveXML();
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}
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/**
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* Add a child node to a parent node on a XML Doc: a worker function.
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*
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* @param $mom_node
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* Type: DOMNode. The target node.
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*
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* @param $name
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* Type: string. The name of child nade is being added
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*
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* @param $value
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* Type: string. Text for the adding node if it is a text node.
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*
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* @return DOMElement $added_node
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* The newly created node, can be used for further expansion.
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* If no further expansion is expected, return value can be igored.
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*/
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function addChild($mom_node,$name, $value='') {
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$added_node = $this->doc->createElement($name,$value);
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$added_node = $mom_node->appendChild($added_node);
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return $added_node;
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}
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}
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class OAI2XMLError extends OAI2XML {
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function __construct($request_args, $errors) {
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parent::__construct($request_args);
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$oai_node = $this->doc->documentElement;
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foreach($errors as $e) {
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$node = $this->addChild($oai_node,"error",$e->getMessage());
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$node->setAttribute("code",$e->getCode());
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}
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}
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}
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