|
public getNodesByIdentifier ( array $identifiers, string $class = 'Node' ) : ArrayIterato\ArrayIterator | |
||
| $identifiers | array | UUIDs of nodes to retrieve. |
| $class | string | Optional class name for the factory. |
| 리턴 | ArrayIterato\ArrayIterator | |
Iterator of the specified nodes keyed by their unique ids |
public function getNodesByIdentifier($identifiers, $class = 'Node')
{
$nodes = $fetchPaths = array();
foreach ($identifiers as $uuid) {
if (!empty($this->objectsByUuid[$uuid]) && !empty($this->objectsByPath[$class][$this->objectsByUuid[$uuid]])) {
// Return it from memory if we already have it
$nodes[$uuid] = $this->objectsByPath[$class][$this->objectsByUuid[$uuid]];
} else {
$fetchPaths[$uuid] = $uuid;
$nodes[$uuid] = $uuid;
// keep position
}
}
if (!empty($fetchPaths)) {
$data = $this->transport->getNodesByIdentifier($fetchPaths);
foreach ($data as $absPath => $item) {
// TODO: $absPath is the backend path. we should inverse the getFetchPath operation here
// build the node from the received data
$node = $this->getNodeByPath($absPath, $class, $item);
$found[$node->getIdentifier()] = $node;
}
foreach ($nodes as $key => $node) {
if (is_string($node)) {
if (isset($found[$node])) {
$nodes[$key] = $found[$node];
} else {
unset($nodes[$key]);
}
}
}
}
reset($nodes);
return new ArrayIterator($nodes);
} /**
* {@inheritDoc}
*
* @api
*/
public function getNodesByIdentifier($ids)
{
if (!is_array($ids) && !$ids instanceof \Traversable) {
$hint = is_object($ids) ? get_class($ids) : gettype($ids);
throw new InvalidArgumentException("Not a valid array or Traversable: {$hint}");
}
return $this->objectManager->getNodesByIdentifier($ids);
}