/**
* Serialize
*
* @param var $payload
* @param io.streams.OutputStream $out
* @return void
*/
public function serialize($payload, $out)
{
$t = new Tree();
$t->setEncoding('UTF-8');
if ($payload instanceof Payload) {
$root = isset($payload->properties['name']) ? $payload->properties['name'] : 'root';
$val = $payload->value;
} else {
$root = 'root';
$val = $payload;
}
$out->write($t->getDeclaration() . "\n");
if ($val instanceof \Traversable) {
$i = 0;
$map = null;
foreach ($val as $key => $element) {
if (0 === $i++) {
$out->write('<' . $root . '>');
$map = 0 !== $key;
}
$out->write($this->node($map ? $key : $root, $element)->getSource(INDENT_NONE, 'utf-8'));
}
if (null === $map) {
$out->write('<' . $root . '/>');
} else {
$out->write('</' . $root . '>');
}
} else {
$out->write($t->withRoot($this->node($root, $val))->getSource(INDENT_NONE));
}
}
/**
* Calculate payload
*
* @param com.google.gsa.feed.XmlFeed feed
* @return string
*/
public function payload($feed)
{
$tree = new Tree('gsafeed');
$tree->addChild((new Node('header'))->withChild(new Node('datasource', $feed->dataSource()))->withChild(new Node('feedtype', $feed->feedType()->name())));
$group = $tree->addChild(new Node('group'));
foreach ($feed->getRecords() as $record) {
$record->visit($group->addChild(new Node('record')));
}
return $tree->getDeclaration() . "\n" . self::FEED_DOC_TYPE . "\n" . $tree->getSource(INDENT_DEFAULT);
}
/**
* Set XML from a tree
*
* @param xml.Tree xml
*/
public function setXMLTree(Tree $xml)
{
libxml_get_last_error() && libxml_clear_errors();
$this->document = new \DOMDocument();
$this->document->loadXML($xml->getDeclaration() . $xml->getSource(INDENT_NONE));
$this->_checkErrors($xml);
}
