/**
* Execute the mapReduce command.
*
* @see Collection::mapReduce()
* @param string|\RiakCode $map
* @param string|\RiakCode $reduce
* @param array|string $out
* @param array $query
* @param array $options
* @return ArrayIterator
* @throws ResultException if the command fails
*/
protected function doMapReduce($map, $reduce, $out, array $query, array $options)
{
list($commandOptions, $clientOptions) = isset($options['socketTimeoutMS']) || isset($options['timeout']) ? $this->splitCommandAndClientOptions($options) : array($options, array());
$command = array();
$command['mapreduce'] = $this->riakCollection->getName();
$command['map'] = $map;
$command['reduce'] = $reduce;
$command['query'] = (object) $query;
$command['out'] = $out;
$command = array_merge($command, $commandOptions);
foreach (array('map', 'reduce', 'finalize') as $key) {
if (isset($command[$key]) && is_string($command[$key])) {
$command[$key] = new \RiakCode($command[$key]);
}
}
$result = $this->database->command($command, $clientOptions);
if (empty($result['ok'])) {
throw new ResultException($result);
}
if (isset($result['result']) && is_string($result['result'])) {
return $this->database->selectCollection($result['result'])->find();
}
if (isset($result['result']) && is_array($result['result']) && isset($result['result']['db'], $result['result']['collection'])) {
return $this->database->getConnection()->selectCollection($result['result']['db'], $result['result']['collection'])->find();
}
$arrayIterator = new ArrayIterator(isset($result['results']) ? $result['results'] : array());
$arrayIterator->setCommandResult($result);
return $arrayIterator;
}
