/**
* Executes a synchronous command.
*
* @param CommandInterface $command Command to execute.
*
* @return AwsDynamoDbResponse
*/
protected function executeCommand(CommandInterface $command)
{
try {
$result = $this->client->execute($command);
} catch (AwsException $e) {
/* Return an error response. */
return new AwsDynamoDbResponse(null, $e);
}
return new AwsDynamoDbResponse($result, null);
}
/**
* @param string $pattern a pattern that table name should match, if emtpy, all tables will be returned
*
* @return array
*/
public function listTables($pattern = '/.*/')
{
$tables = [];
$lastEvaluatedTableName = null;
do {
$args = ["Limit" => 30];
if ($lastEvaluatedTableName) {
$args['ExclusiveStartTableName'] = $lastEvaluatedTableName;
}
$cmd = $this->db->getCommand('ListTables', $args);
$result = $this->db->execute($cmd);
if (isset($result['LastEvaluatedTableName'])) {
$lastEvaluatedTableName = $result['LastEvaluatedTableName'];
} else {
$lastEvaluatedTableName = null;
}
foreach ($result['TableNames'] as $tableName) {
if (preg_match($pattern, $tableName)) {
$tables[] = $tableName;
}
}
} while ($lastEvaluatedTableName != null);
return $tables;
}
