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<?php
/**
* An LBFactory class that always returns a single database object.
*/
class LBFactory_Single extends LBFactory {
protected $lb;
/**
* @param $conf An associative array with one member:
* - connection: The DatabaseBase connection object
*/
function __construct( $conf ) {
$this->lb = new LoadBalancer_Single( $conf );
}
function newMainLB( $wiki = false ) {
return $this->lb;
}
function getMainLB( $wiki = false ) {
return $this->lb;
}
function newExternalLB( $cluster, $wiki = false ) {
return $this->lb;
}
function &getExternalLB( $cluster, $wiki = false ) {
return $this->lb;
}
function forEachLB( $callback, $params = array() ) {
call_user_func_array( $callback, array_merge( array( $this->lb ), $params ) );
}
}
/**
* Helper class for LBFactory_Single.
*/
class LoadBalancer_Single extends LoadBalancer {
var $db;
function __construct( $params ) {
$this->db = $params['connection'];
parent::__construct( array( 'servers' => array( array(
'type' => $this->db->getType(),
'host' => $this->db->getServer(),
'dbname' => $this->db->getDBname(),
'load' => 1,
) ) ) );
}
function reallyOpenConnection( $server, $dbNameOverride = false ) {
return $this->db;
}
}
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