public function index(\Traversable $resourceTraversable)
{
$indexer = new SolariumIndexer($this->getClient(), $resourceTraversable);
$count = $indexer->run();
// generate index substitution map
$map = array();
foreach ($indexer->getUsedIndexes() as $index) {
$map[$index->getIdentifier()] = $index->getSolrId();
}
$this->setIndexSubstitutions($map);
return $count;
}
