/**
* Create the root XML element to use with a request
*
* @param Operation $operation Operation object
*
* @return \XMLWriter
*/
protected function createRootElement(Operation $operation)
{
static $defaultRoot = array('name' => 'Request');
// If no root element was specified, then just wrap the XML in 'Request'
$root = $operation->getData('xmlRoot') ?: $defaultRoot;
// Allow the XML declaration to be customized with xmlEncoding
$encoding = $operation->getData('xmlEncoding');
$xmlWriter = $this->startDocument($encoding);
$xmlWriter->startElement($root['name']);
// Create the wrapping element with no namespaces if no namespaces were present
if (!empty($root['namespaces'])) {
// Create the wrapping element with an array of one or more namespaces
foreach ((array) $root['namespaces'] as $prefix => $uri) {
$nsLabel = 'xmlns';
if (!is_numeric($prefix)) {
$nsLabel .= ':' . $prefix;
}
$xmlWriter->writeAttribute($nsLabel, $uri);
}
}
return $xmlWriter;
}
