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<?php
declare(strict_types=1);
namespace WsdlToPhp\DomHandler;
abstract class AbstractElementHandler extends AbstractNodeHandler
{
public function __construct(\DOMElement $element, AbstractDomDocumentHandler $domDocument, int $index = -1)
{
parent::__construct($element, $domDocument, $index);
}
public function getElement(): ?\DOMElement
{
return $this->getNode() instanceof \DOMElement ? $this->getNode() : null;
}
public function hasAttribute(string $name): bool
{
return $this->getElement() && $this->getElement()->hasAttribute($name);
}
public function getAttribute(string $name): ?AttributeHandler
{
if (!$this->hasAttribute($name) || !$this->getElement()) {
return null;
}
$attribute = $this->getDomDocumentHandler()->getHandler($this->getElement()->getAttributeNode($name));
return $attribute instanceof AttributeHandler ? $attribute : null;
}
/**
* @return null|bool|mixed|string
*/
public function getAttributeValue(string $name, bool $withNamespace = false, bool $withinItsType = true, ?string $asType = AbstractAttributeHandler::DEFAULT_VALUE_TYPE)
{
$value = null;
$attribute = $this->getAttribute($name);
if ($attribute instanceof AbstractAttributeHandler) {
$value = $attribute->getValue($withNamespace, $withinItsType, $asType);
}
return $value;
}
/**
* @return array<int, AbstractElementHandler|AbstractNodeHandler>
*/
public function getChildrenByName(string $name): array
{
$children = [];
if (!$this->hasChildren() || !$this->getElement()) {
return $children;
}
foreach ($this->getElement()->getElementsByTagName($name) as $index => $node) {
$children[] = $this->getDomDocumentHandler()->getHandler($node, $index);
}
return $children;
}
/**
* @return AbstractElementHandler[]
*/
public function getElementChildren(): array
{
return $this->hasChildren() ? $this->getDomDocumentHandler()->getElementsHandlers($this->getChildNodes()) : [];
}
/**
* @param string[] $attributes
*
* @return AbstractAttributeHandler[]|AbstractElementHandler[]|AbstractNodeHandler[]
*/
public function getChildrenByNameAndAttributes(string $name, array $attributes): array
{
return $this->getDomDocumentHandler()->getElementsByNameAndAttributes($name, $attributes, $this->getNode());
}
/**
* @param string[] $attributes
*/
public function getChildByNameAndAttributes(string $name, array $attributes): ?ElementHandler
{
$children = $this->getChildrenByNameAndAttributes($name, $attributes);
$child = array_shift($children);
return $child instanceof ElementHandler ? $child : null;
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*
* @return mixed
*/
public function getMaxOccurs()
{
$maxOccurs = $this->getAttributeValue(AbstractAttributeHandler::ATTRIBUTE_MAX_OCCURS);
if (AbstractAttributeHandler::VALUE_UNBOUNDED === $maxOccurs) {
return $maxOccurs;
}
if (!is_numeric($maxOccurs)) {
return AbstractAttributeHandler::DEFAULT_OCCURRENCE_VALUE;
}
return (int) $maxOccurs;
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*
* @return int
*/
public function getMinOccurs()
{
$minOccurs = $this->getAttributeValue(AbstractAttributeHandler::ATTRIBUTE_MIN_OCCURS);
if (!is_numeric($minOccurs)) {
return AbstractAttributeHandler::DEFAULT_OCCURRENCE_VALUE;
}
return (int) $minOccurs;
}
/**
* Info at {@link http://www.w3schools.com/xml/el_element.asp}.
*/
public function getNillable(): bool
{
return (bool) $this->getAttributeValue(AbstractAttributeHandler::ATTRIBUTE_NILLABLE, false, true, 'bool');
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*/
public function canOccurSeveralTimes(): bool
{
return (1 < $this->getMinOccurs()) || (1 < $this->getMaxOccurs()) || (AbstractAttributeHandler::VALUE_UNBOUNDED === $this->getMaxOccurs());
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*/
public function canOccurOnlyOnce(): bool
{
return 1 === $this->getMaxOccurs();
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*/
public function isOptional(): bool
{
return 0 === $this->getMinOccurs();
}
/**
* Info at {@link https://www.w3.org/TR/xmlschema-0/#OccurrenceConstraints}.
*/
public function isRequired(): bool
{
return 1 <= $this->getMinOccurs();
}
public function isRemovable(): bool
{
return $this->isOptional() && $this->getNillable();
}
}