/**
* Setup the hosts based on the configuration file
* @throws \Exception
* @return mixed|void
*/
public function setup()
{
if (empty($this->params['hostGroup'])) {
$this->params['hostGroup'] = 'default';
}
if (empty($this->params['environment'])) {
$this->params['environment'] = ServerUtility::determineEnvironment();
}
if (isset($this->params['timeout'])) {
$this->timeout = $this->params['timeout'];
}
if ($this->params['forceLocalhost']) {
$this->registerHost('master', '127.0.0.1:6379');
return;
}
$config = $this->getConfig();
$serverGroups = $config['servergroup'];
if (!isset($serverGroups[$this->params['hostGroup']])) {
throw new \Exception('hostgroup is not a valid group setup in the configuration');
}
$servers = $serverGroups[$this->params['hostGroup']];
$this->setMaster($servers);
$this->setSlaves($servers);
}
/**
* This allows override of how environment information is loaded into this
* class.
*
* @return string
*/
protected function determineEnvironment()
{
return ServerUtility::determineEnvironment();
}
/**
* Check the table information cache for the given table data
*
* @param string $database
* @param string $table
* @return string
*/
public function tableInfo($database, $table)
{
// use the mysql registry for this request to look up information about the database/table on this host
$tableInfo = MysqlTableInfo::getInfo($this->hosts['master'], $database, $table);
$MemcacheConn = null;
if ($tableInfo) {
return $tableInfo;
}
$key = current($this->hosts['master']) . "|{$database}.{$table}";
$isLocal = ServerUtility::isLocal();
// Using file cache to make thie more portable need to expose caching layer in the future
CacheManager::setup(array("path" => sys_get_temp_dir()));
$InstanceCache = CacheManager::Files();
// when running a local machine we want to allow schema updates to happen at anytime so no caching layer in place
if ($isLocal) {
$tableInfo = false;
} else {
$tableInfo = $InstanceCache->get($key);
}
if (!$tableInfo) {
$tableInfo = $this->generateSchemaJson($database, $table);
$InstanceCache->set($key, $tableInfo, $this->tableInfoCacheSec);
MysqlTableInfo::setInfo($this->hosts['master'], $database, $table, $tableInfo);
}
return $tableInfo;
}
