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tree: a72146026d
Laurent Eschenauer eschnou
file 98 lines (80 sloc) 2.739 kb
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<?php

require_once 'AtomNS.php';
require_once 'AtomAdapterBasic.php';

class AtomAdapterException extends Exception { }

abstract class BaseAtomAdapter {
protected $_atomNode;
protected $_prefix;

public function getBase() {
return (string)$this->_atomNode->attributes("xml", true)->{AtomNS::BASE_ATTRIBUTE};
}

public function getLang() {
return (string)$this->_atomNode->attributes("xml", true)->{AtomNS::LANG_ATTRIBUTE};
}

public function getXml() {
return $this->_atomNode->asXML();
}

public function addNamespace($prefix, $namespace) {
$this->_atomNode->addAttribute($prefix.':temp',null,$namespace);
unset($this->_atomNode->attributes($namespace)->temp);
}

public function getExtension($namespace) {
return AtomExtensionManager::getInstance()->getExtensionAdapter($this->_atomNode, $namespace);
}

public function getDocumentType() {
return $this->_atomNode->getName();
}

public function __construct($adapterType,$data,$data_is_url=false) {
if (is_string($data)) {
$this->_atomNode = new SimpleXMLElement($data,null,$data_is_url);
}
else if ($data instanceof SimpleXMLElement) {
$this->_atomNode = $data;
}
else if ($data === null) {
$this->_atomNode = new SimpleXMLElement("<".$adapterType." xmlns='".AtomNS::NS."'></".$adapterType.">",null,$data_is_url);
}
else {
throw new AtomAdapterException("Invalid Data Type");
}

if ($this->_atomNode->getName() != $adapterType) { //check whether $this->_atomNode is the appropriate XML Object, e.g. atom entry node for AtomEntryAdapter
throw new AtomAdapterException("Invalid XML Object");
}

$this->_prefix = $this->_getPrefix(AtomNS::NS);
if ($this->_prefix === null) {
throw new AtomAdapterException("Invalid Atom Document");
}
}

public function __get($name) {
        $method = 'get' . $name;
        return $this->$method();
}

public function __set($name, $value) {
$method = 'set' . $name;
$this->$method($value);
}

protected function _getPrefix($namespace) {
foreach($this->_atomNode->getDocNamespaces(true) as $prefix => $ns) {
if ($ns == $namespace) {
return $prefix;
}
}
return null;
}

protected function _getAttribute($attribute, $namespace=null) {
return (string)$this->_atomNode->attributes($namespace)->$attribute;
}

protected function _setAttribute($attribute, $value, $namespace=null) {
if ($value !== null)
{
if (!isset($this->_atomNode->attributes($namespace)->$attribute)) {
if ($this->_prefix != "") {
$attribute = $this->_prefix . ":" . $attribute;
}
$this->_atomNode->addAttribute($attribute, $value, $namespace);
return;
}

$this->_atomNode->attributes($namespace)->$attribute = $value;
}
}
}
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