Fix logged session listener initialized before server startup

org.adempiere.base/src/org/compiere/Adempiere.java

@@ -32,12 +32,15 @@ import javax.jnlp.BasicService;
 import javax.jnlp.ServiceManager;
 import javax.jnlp.UnavailableServiceException;
 import javax.swing.ImageIcon;
+import javax.swing.event.EventListenerList;
 
 import org.adempiere.base.Core;
 import org.compiere.db.CConnection;
 import org.compiere.model.MClient;
 import org.compiere.model.MSystem;
 import org.compiere.model.ModelValidationEngine;
+import org.compiere.model.ServerStateChangeEvent;
+import org.compiere.model.ServerStateChangeListener;
 import org.compiere.util.CLogFile;
 import org.compiere.util.CLogMgt;
 import org.compiere.util.CLogger;
@@ -109,6 +112,9 @@ public final class Adempiere
 	
 	/** Thread pool **/
 	private static ThreadPoolExecutor threadPoolExecutor = null;
+	
+	 /** A list of event listeners for this component.	*/
+    private static EventListenerList m_listenerList = new EventListenerList();
 
 	static {
 		ClassLoader loader = Adempiere.class.getClassLoader();
@@ -538,6 +544,8 @@ public final class Adempiere
 
 		createThreadPool();
 		
+		fireServerStateChanged(new ServerStateChangeEvent(new Object(), ServerStateChangeEvent.SERVER_START));
+		
 		if (isClient)		//	don't test connection
 			return false;	//	need to call
 
@@ -655,4 +663,26 @@ public final class Adempiere
 	public static ThreadPoolExecutor getThreadPoolExecutor() {
 		return threadPoolExecutor;
 	}
+	
+	/**
+	 *  @param l listener
+	 */
+	public static synchronized void removeServerStateChangeListener(ServerStateChangeListener l)
+	{
+		m_listenerList.remove(ServerStateChangeListener.class, l);
+	}
+	/**
+	 *  @param l listener
+	 */
+	public static synchronized void addServerStateChangeListener(ServerStateChangeListener l)
+	{
+		m_listenerList.add(ServerStateChangeListener.class, l);
+	}
+	
+	private static void fireServerStateChanged(ServerStateChangeEvent e)
+	{
+		ServerStateChangeListener[] listeners = m_listenerList.getListeners(ServerStateChangeListener.class);
+		for (int i = 0; i < listeners.length; i++)
+        	listeners[i].stateChange(e);
+	}
 }	//	Adempiere

org.adempiere.base/src/org/compiere/model/ServerStateChangeEvent.java

@@ -0,0 +1,28 @@
+package org.compiere.model;
+
+import java.util.EventObject;
+
+public class ServerStateChangeEvent extends EventObject {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -7744346736197438379L;
+	public final static int SERVER_START = 0;
+	public final static int SERVER_STOP = 1;
+	
+	private int eventType;
+
+	public ServerStateChangeEvent(Object source, int eventType) {
+		super(source);
+		this.eventType = eventType;
+	}
+
+	public int getEventType() {
+		return eventType;
+	}
+	public void setEventType(int eventType) {
+		this.eventType = eventType;
+	}
+
+}

org.adempiere.base/src/org/compiere/model/ServerStateChangeListener.java

@@ -0,0 +1,31 @@
+/******************************************************************************
+ * Product: Adempiere ERP & CRM Smart Business Solution                       *
+ * Copyright (C) 2007 Adempiere, Inc. All Rights Reserved.                    *
+ * This program is free software; you can redistribute it and/or modify it    *
+ * under the terms version 2 of the GNU General Public License as published   *
+ * by the Free Software Foundation. This program is distributed in the hope   *
+ * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
+ * See the GNU General Public License for more details.                       *
+ * You should have received a copy of the GNU General Public License along    *
+ * with this program; if not, write to the Free Software Foundation, Inc.,    *
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
+ *****************************************************************************/
+package org.compiere.model;
+
+import java.util.EventListener;
+
+/**
+ * 
+ * @author Low Heng Sin
+ *
+ */
+public interface ServerStateChangeListener extends EventListener {
+
+	/**
+	 * 
+	 * @param event
+	 */
+	public void stateChange(ServerStateChangeEvent event);
+	
+}

org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/LoggedSessionListener.java

@@ -10,12 +10,15 @@ import javax.servlet.http.HttpSession;
 import javax.servlet.http.HttpSessionEvent;
 import javax.servlet.http.HttpSessionListener;
 
+import org.compiere.Adempiere;
 import org.compiere.model.MSession;
+import org.compiere.model.ServerStateChangeEvent;
+import org.compiere.model.ServerStateChangeListener;
 import org.compiere.util.DB;
 import org.compiere.util.Env;
 import org.compiere.util.WebUtil;
 
-public class LoggedSessionListener implements HttpSessionListener, ServletContextListener{
+public class LoggedSessionListener implements HttpSessionListener, ServletContextListener, ServerStateChangeListener{
 	private static Hashtable<String, HttpSession> AD_SessionList = new Hashtable<String, HttpSession>();
 	
 	@Override
@@ -45,6 +48,12 @@ public class LoggedSessionListener implements HttpSessionListener, ServletContex
 	}
 	
 	public void DestroyAllSession() {
+		if (!Adempiere.isStarted())
+		{
+			Adempiere.addServerStateChangeListener(this);
+			return;
+		}
+		
 		String serverName = WebUtil.getServerName();
 		String sql = "UPDATE AD_Session SET processed = 'Y' WHERE processed ='N' AND servername = '"+serverName+"'";
 		Statement stmt = DB.createStatement();
@@ -53,7 +62,8 @@ public class LoggedSessionListener implements HttpSessionListener, ServletContex
 		}catch (Exception e) {
 			System.out.println("UpdateSession: "+e);
 		}
-
+		
+		Adempiere.removeServerStateChangeListener(this);
 	}
 	
 	public void removeADSession(String sessionID, String serverName) {
@@ -73,4 +83,9 @@ public class LoggedSessionListener implements HttpSessionListener, ServletContex
 			System.out.println("UpdateSession: "+e);
 		}
 	}
+
+	@Override
+	public void stateChange(ServerStateChangeEvent event) {
+		DestroyAllSession();
+	}
 }