--- a/busui/owa/modules/base/classes/dbEventQueue.php
+++ b/busui/owa/modules/base/classes/dbEventQueue.php
@@ -1,1 +1,179 @@
+<?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.
+//
+// $Id$
+//
+
+if ( ! class_exists( 'eventQueue' ) ) {
+	require_once( OWA_BASE_CLASS_DIR.'eventQueue.php' );
+}
+/**
+ * Database backed Event Queue Implementation
+ * 
+ * @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 1.4.0
+ */
+
+class owa_dbEventQueue extends eventQueue {
+	
+	var $db;
+	var $items_per_fetch = 50;
+		
+	function __construct($queue_dir = '') {
+		
+		$this->db = owa_coreAPI::dbSingleton();
+		return parent::__construct();	
+	}
+		
+	function addToQueue($event) {
+		
+		$qi = owa_coreAPI::entityFactory('base.queue_item');
+		$serialized_event = serialize( $event );
+		$qi->set( 'id', $qi->generateId( $serialized_event) );
+		$qi->set( 'event_type', $event->getEventType() );
+		$qi->set( 'status', 'unhandled' );
+		$qi->set( 'priority', $this->determinPriority( $event->getEventType() ) );
+		$qi->set( 'event', $serialized_event );
+		$qi->set( 'insertion_timestamp', $this->makeTimestamp() );
+		$qi->set( 'insertion_datestamp', $this->makeDatestamp() );
+		$qi->save();
+	}
+	
+	function markAsFailed($item_id, $error_msg = '') {
+		
+		$qi = owa_coreAPI::entityFactory('base.queue_item');
+		$qi->load($item_id);
+		$inserted_timestamp = $qi->get('insertion_timestamp');
+		if ($inserted_timestamp) {
+			$qi->set( 'failed_attempt_count' , $qi->get( 'failed_attempt_count' ) + 1 );
+			$qi->set( 'last_attempt_timestamp', $this->makeTimestamp() );
+			$qi->set( 'not_before_timestamp', $this->determineNextAttempt($qi->get('event_type'), $qi->get('failed_attempt_count') ) );
+			$qi->set( 'last_error_msg', $error_msg);
+			$qi->save();
+		}
+	}
+	
+	function markAsHandled($item_id) {
+		$qi = owa_coreAPI::entityFactory('base.queue_item');
+		$qi->load($item_id);
+		$inserted_timestamp = $qi->get('insertion_timestamp');
+		if ($inserted_timestamp) {
+			$qi->set( 'status', 'handled' );
+			$qi->set( 'handled_timestamp', $this->makeTimestamp() );
+			$qi->save();
+		}
+	}
+	
+	function getNextItems($limit = '') {
+		
+		if ( ! $limit ) {
+			$limit = $this->items_per_fetch;
+		}
+		$this->db->select( '*' );
+		$this->db->from( 'owa_queue_item' );
+		$this->db->where( 'status', 'unhandled' );
+		$this->db->where( 'not_before_timestamp', time(), '<' );
+		$this->db->orderBy( 'insertion_timestamp' , 'ASC' );
+		$this->db->limit( $limit );
+		
+		$items = $this->db->getAllRows();
+		
+		if ( $items ) {
+			$entities = array();
+			foreach ( $items as $item ) {
+				$qi = owa_coreAPI::entityFactory( 'base.queue_item' );
+				$qi->setProperties( $item );
+				$entities[] = $qi;
+			}
+			
+			if ( $limit > 1 ) {
+				return $entities;
+			} else {
+				return $entities[0];
+			}
+		}		
+	}
+	
+	function getNextItem() {
+	
+		return $this->getNextItems(1);
+	}
+	
+	function determineNextAttempt($event_type, $failed_count) {
+	
+		return $this->makeTimeStamp(time() + 30);
+	}
+	
+	function makeTimestamp() {
+		
+		return time();
+	}
+	
+	// safe for mysql timestamp column type
+	function makeDatestamp($time = '') {
+		
+		if ( ! $time ) {
+			$time = time();
+		}
+		
+		return gmdate("Y-m-d H:i:s", $time);
+	}
+	
+	function determinPriority($event_type) {
+		
+		return 99;
+	}
+	
+	function processQueue() {
+		
+		$more = true;
+		
+		while( $more ) {
+		
+			$items = $this->getNextItems();
+			
+			if ( $items ) {
+			
+				foreach ( $items as $item ) {
+					owa_coreAPI::debug('About to dispatch queue item id: ' . $item->get( 'id' ) );			
+					$event = unserialize( $item->get('event') );
+					$dispatch = owa_coreAPI::getEventDispatch();
+					$ret = $dispatch->notify( $event );
+					owa_coreAPI::debug($ret);
+					
+					$id = $item->get( 'id' );
+					if ( $ret === OWA_EHS_EVENT_HANDLED ) {
+						$this->markAsHandled( $id );
+						owa_coreAPI::debug("EHS: marked item ($id) as handled.");
+					} else {
+						$this->markAsFailed( $id );
+						owa_coreAPI::debug("EHS: marked item ($id) as failed.");
+					}	
+					
+				}
+				
+			} else {
+				$more = false;
+			}
+		}
+	}
+}
+
+?>