/**
* Invokes the plugin specific code.
*
* @return string
* @throws Stagehand_LegacyError_PEARErrorStack_Exception
*/
public function invoke()
{
$this->_prepareContinuation();
Piece_Unity_Service_Continuation::setFlowExecutionTicketKey($this->flowExecutionTicketKey);
self::$_flowID = $this->context->getOriginalScriptName();
Piece_Flow_Action_Factory::setActionDirectory($this->actionDirectory);
$viewElement = $this->context->viewElement;
$viewElement->setElement('__flowExecutionTicketKey', Piece_Unity_Service_Continuation::getFlowExecutionTicketKey());
try {
$flowExecutionTicket = $this->_continuationServer->invoke($this->context, $this->bindActionsWithFlowExecution);
$viewString = $this->_continuationServer->getView();
} catch (Stagehand_LegacyError_PEARErrorStack_Exception $e) {
if ($e->getCode() == PIECE_FLOW_ERROR_FLOW_EXECUTION_EXPIRED) {
if ($this->useGCFallback) {
$session = $this->context->getSession();
$session->setAttribute('_flowExecutionExpired', true);
$this->context->sendHTTPStatus(302);
return $this->gcFallbackURI;
}
}
throw $e;
}
$this->context->viewElement->setElement('__flowExecutionTicket', $flowExecutionTicket);
$session = $this->context->getSession();
$session->setPreloadCallback('_Dispatcher_Continuation_ActionLoader', array(__CLASS__, 'loadAction'));
foreach (array_keys(Piece_Flow_Action_Factory::getInstances()) as $actionClass) {
$session->addPreloadClass('_Dispatcher_Continuation_ActionLoader', $actionClass, $this->_continuationServer->getActiveFlowID());
}
return $this->_prefixFlowNameToViewString($viewString);
}
/**
* Defines and initializes extension points and configuration points.
*
* @since Method available since Release 0.6.0
*/
function _initialize()
{
$this->_addConfigurationPoint('actionDirectory');
$this->_addConfigurationPoint('enableSingleFlowMode', false);
// deprecated
$this->_addConfigurationPoint('cacheDirectory');
$this->_addConfigurationPoint('flowDefinitions', array());
// deprecated
$this->_addConfigurationPoint('flowExecutionTicketKey', '_flowExecutionTicket');
$this->_addConfigurationPoint('flowNameKey', '_flow');
// deprecated
$this->_addConfigurationPoint('flowName');
// deprecated
$this->_addConfigurationPoint('bindActionsWithFlowExecution', true);
$this->_addConfigurationPoint('enableGC', false);
$this->_addConfigurationPoint('gcExpirationTime', 1440);
$this->_addConfigurationPoint('useGCFallback', false);
$this->_addConfigurationPoint('gcFallbackURL');
// deprecated
$this->_addConfigurationPoint('useFlowMappings', false);
$this->_addConfigurationPoint('flowMappings', array());
$this->_addConfigurationPoint('configDirectory');
$this->_addConfigurationPoint('configExtension', '.flow');
$this->_addConfigurationPoint('useFullFlowNameAsViewPrefix', true);
$this->_addConfigurationPoint('gcFallbackURI', $this->_getConfiguration('gcFallbackURL'));
Piece_Unity_Service_Continuation::setFlowExecutionTicketKey($this->_getConfiguration('flowExecutionTicketKey'));
$GLOBALS['PIECE_UNITY_Continuation_FlowIDKey'] = $this->_getConfiguration('flowNameKey');
if ($this->_getConfiguration('useFlowMappings')) {
$GLOBALS['PIECE_UNITY_Continuation_FlowID'] = $this->_context->getOriginalScriptName();
} else {
$GLOBALS['PIECE_UNITY_Continuation_FlowID'] = $this->_getConfiguration('flowName');
}
Piece_Flow_Action_Factory::setActionDirectory($this->_getConfiguration('actionDirectory'));
$viewElement =& $this->_context->getViewElement();
$viewElement->setElement('__flowExecutionTicketKey', Piece_Unity_Service_Continuation::getFlowExecutionTicketKey());
$viewElement->setElement('__flowNameKey', $GLOBALS['PIECE_UNITY_Continuation_FlowIDKey']);
}
