/**
* Calls the function specified in the constructor with any additional arguments
* passed to the constructor.
*/
public function doUpdate()
{
try {
call_user_func_array($this->doUpdateFunction, $this->arguments);
} catch (Exception $ex) {
$this->exceptionHandler->handleException($ex, 'data-update-failed', 'A data update callback triggered an exception');
}
}
/**
* @param string $line
* @return EntityId|null
*/
protected function lineToId($line)
{
$line = trim($line);
try {
$id = $this->parser->parse($line);
} catch (EntityIdParsingException $ex) {
$this->exceptionHandler->handleException($ex, 'bad-entity-id', "Failed to parse Entity ID {$line}");
$id = null;
}
return $id;
}
/**
* Dump list of entities
*
* @param EntityId[] $entityIds
* @param int &$dumpCount The number of entities already dumped (will be updated).
*/
private function dumpEntities(array $entityIds, &$dumpCount)
{
$toLoad = array();
foreach ($entityIds as $entityId) {
if ($this->idMatchesFilters($entityId)) {
$toLoad[] = $entityId;
}
}
$this->entityPrefetcher->prefetch($toLoad);
foreach ($toLoad as $entityId) {
try {
$data = $this->generateDumpForEntityId($entityId);
if (!$data) {
continue;
}
$this->preEntityDump($dumpCount);
$this->writeToDump($data);
$this->postEntityDump($dumpCount);
$dumpCount++;
if ($this->limit && $dumpCount >= $this->limit) {
break;
}
} catch (EntityLookupException $ex) {
$this->exceptionHandler->handleException($ex, 'failed-to-dump', 'Failed to dump ' . $entityId);
} catch (StorageException $ex) {
$this->exceptionHandler->handleException($ex, 'failed-to-dump', 'Failed to dump ' . $entityId);
}
}
}
/**
* @param ResultWrapper $res
*
* @return EntityId[] An associative array mapping page IDs to Entity IDs.
*/
private function slurpEntityIds(ResultWrapper $res)
{
$entityPerPage = array();
foreach ($res as $row) {
try {
$entityId = $this->idParser->parse($row->pp_value);
$entityPerPage[$row->pp_page] = $entityId;
} catch (Exception $ex) {
$this->exceptionHandler->handleException($ex, 'badEntityId', __METHOD__ . ': ' . 'Failed to parse entity ID: ' . $row->pp_value . ' at page ' . $row->pp_page);
}
}
return $entityPerPage;
}