/**
* Implements CollectionAbstract::loadSourceData().
*
* Executes a `git log -p [commit] -1` command to get the data, parses the
* log entry into an associative array of parts.
*
* @return array
*/
public function loadSourceData(QueueMessage $message)
{
$identifier = $message->getBody();
list($commit, $repository) = explode(':', $identifier, 2);
$git = $this->getGit($repository);
$options = array('p' => $commit, '1' => true);
$log = $git->log(null, null, $options);
list($headers, $message, $diff) = explode("\n\n", $log);
// Re-append a line break for lookahead pattern matching.
$headers .= "\n";
$data = array('id' => $identifier, 'commit' => $commit, 'repository' => $repository, 'message' => trim($message), 'diff' => trim($diff));
$patterns = array('author' => '/Author:\\s+(.+)(?=\\n)/s', 'committer' => '/Committer:\\s+(.+)(?=\\n)/s', 'date' => '/Date:\\s+(.+)(?=\\n)/s');
foreach ($patterns as $field_name => $pattern) {
if (preg_match($pattern, $headers, $match)) {
$data[$field_name] = $match[1];
}
}
return $data;
}
/**
* Implements CollectionAbstract::loadSourceData().
*/
public function loadSourceData(QueueMessage $message)
{
$item_id = $message->getBody();
if (isset($this->_scheduledItems[$item_id])) {
return $this->_scheduledItems[$item_id];
}
// @todo Handle the error. This is only an issue in parallel indexing
// configurations.
return false;
}
/**
* Indexes an item that is queued for indexing into the search engine.
*/
public function indexQueuedItem(QueueMessage $message)
{
$log = $this->getLogger();
$context = array('engine' => get_class($this->_searchEngine), 'item' => $message->getBody());
// Load the source data form the message. The message usually contains a
// unique identifier in the body. Skip processing if false is returned
// as the source data.
$collection = $message->getCollection();
$data = $collection->loadSourceData($message);
if ($data) {
$context['collection'] = $collection->getId();
$log->debug('Data fetched from source', $context);
// Build an index document from the source data.
$document = $this->_searchEngine->newDocument($this);
$collection->buildDocument($document, $data);
$log->debug('Document prepared for indexing', $context);
// Index the document, sandwich indexing with events.
$event = new IndexDocumentEvent($this, $document, $data);
$this->dispatchEvent(SearchEvents::DOCUMENT_PRE_INDEX, $event);
$this->_searchEngine->indexDocument($collection, $document);
$this->dispatchEvent(SearchEvents::DOCUMENT_POST_INDEX, $event);
$log->debug('Document processed for indexing', $context);
} else {
$log->critical('Data could not be loaded from source', $context);
}
}
