<?php

//
// Open Web Analytics - An Open Source Web Analytics Framework
//
// Copyright 2006 Peter Adams. All rights reserved.
//
// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// $Id$
//

require_once(OWA_BASE_CLASS_DIR.'cliController.php');

/**
 * Entity Install Controller
 * 
 * @author      Peter Adams <peter@openwebanalytics.com>
 * @copyright   Copyright &copy; 2006 Peter Adams <peter@openwebanalytics.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
 * @category    owa
 * @package     owa
 * @version		$Revision$	      
 * @since		owa 1.0.0
 */

class owa_processEventQueueController extends owa_cliController {
	
	function __construct( $params ) {
	
		$this->setRequiredCapability( 'edit_modules' );
		return parent::__construct( $params );
	}

	function action() {
		
		if ( $this->getParam( 'queues' ) ) {
			
			$queues = $this->getParam( 'queues' );
						
		} else {
		
			$queues = 'incoming_tracking_events,processing';
		}
		
		owa_coreAPI::notice( "About to process event queues: $queues");
		
		// pull list of event queues to process from command line
		$queues = $this->getParam( 'queues' );
		
		if ( $queues ) {
			// parse command line
			$queues = explode( ',', $this->getParam( 'queues' ) );
			
		} else {
			
			// get whatever queues are registered by modules
			$s = owa_coreAPI::serviceSingleton();
			$queues = array_keys( $s->getMap('event_queues') );
		}
		
		if ( $queues ) {		
		
			foreach ( $queues as $queue_name ) {
				
				$q = owa_coreAPI::getEventQueue( $queue_name );
				
				if ( $q->connect() ) {
					
					$d = owa_coreAPI::getEventDispatch();
					$more = true;
					
					while( $more ) {
					
						owa_coreAPI::debug( 'calling receive message' );
						// get an item from the queue		
						$event = $q->receiveMessage();
						owa_coreAPI::debug( 'Event returned: '.print_r( $event, true ) );
					
						if ( $event ) {
						
							// process event if needed
							// lookup which event processor to use to process this event type
							$processor_action = owa_coreAPI::getEventProcessor( $event->getEventType() );
					
							if ( $processor_action ) {
								
								// processor handles it's own event dispatching, so just return
								return owa_coreAPI::handleRequest( array( 'event' => $event ), $processor_action );								
						
							} else {
								
								// dispatch event	
								$ret = $d->notify( $event );	
							}
						
							if ( $ret  = OWA_EHS_EVENT_HANDLED ) {
								// delete event from queue
								// second param is for backwards compat. remove soon
								$q->deleteMessage( $event->getQueueGuid() );
							}
							
						} else {
							// if no event, stop the loop
							$more = false;
							owa_coreAPI::notice("No more events to process.");
						}
					}
					
					$q->disconnect();
				}
			}
			
		} else {
		
			owa_coreAPI::notice("There are no event queues registered.");
		}
	}
}

?>