public function getObject(Spring\Object\Parser $parser, \SimpleXMLElement $element)
{
$object = new Common\Mutable\HashSet();
$children = $parser->getElementChildren($element, null);
foreach ($children as $child) {
$object->putValue($parser->getObjectFromElement($child));
}
return $object;
}
/**
* This method parses a "set" node.
*
* @access protected
* @param \SimpleXMLElement $root a reference to the root node
* @param \SimpleXMLElement $node a reference to the "set" node
* @return Common\Mutable\ISet a set of values
* @throws Throwable\Parse\Exception indicates that problem occurred while
* parsing
*/
protected function parseSetElement(\SimpleXMLElement $root, \SimpleXMLElement $node)
{
$set = new Common\Mutable\HashSet();
$children = $node->children();
foreach ($children as $child) {
$name = $child->getName();
switch ($name) {
case 'array':
$set->putValue($this->parseArrayElement($root, $child));
break;
case 'dictionary':
$set->putValue($this->parseDictionaryElement($root, $child));
break;
case 'expression':
$set->putValue($this->parseExpressionElement($root, $child));
break;
case 'idref':
$set->putValue($this->parseIdRefElement($root, $child));
break;
case 'list':
$set->putValue($this->parseListElement($root, $child));
break;
case 'map':
$set->putValue($this->parseMapElement($root, $child));
break;
case 'null':
$set->putValue($this->parseNullElement($root, $child));
break;
case 'object':
$set->putValue($this->parseInnerObjectElement($root, $child));
break;
case 'ref':
$set->putValue($this->parseRefElement($root, $child));
break;
case 'set':
$set->putValue($this->parseSetElement($root, $child));
break;
case 'undefined':
$set->putValue($this->parseUndefinedElement($root, $child));
break;
case 'value':
$set->putValue($this->parseValueElement($root, $child));
break;
default:
throw new Throwable\Parse\Exception('Unable to process Spring XML. Tag ":tag" has invalid child node ":child".', array(':tag' => 'set', ':child' => $name));
break;
}
}
return $set;
}
/**
* This method returns the power set of the specified set.
*
* @access public
* @static
* @param Common\ISet $set the hash set to be used
* @return Common\ISet the power set
*
* @see http://rosettacode.org/wiki/Power_Set
*/
public static function powerset(Common\ISet $set)
{
$powerset = new Common\Mutable\HashSet();
$powerset->putValue(new Common\Mutable\HashSet());
foreach ($set as $element) {
$hashset = new Common\Mutable\HashSet();
foreach ($powerset as $subset) {
$hashset->putValue($subset);
$temp = new Common\Mutable\HashSet($subset);
$temp->putValue($element);
$hashset->putValue($temp);
}
$powerset = $hashset;
}
return $powerset;
}
