added user session list and user list sidebox

etc/sidebox-config.xml

@@ -10,9 +10,9 @@
 
     The Original Code is the Venice Web Communities System.
 
-    The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+    The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
     for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
-    Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+    Copyright (C) 2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
 
     Contributor(s): 
 -->
@@ -40,6 +40,14 @@
     <new-image width="40" height="20" alt="New!" fixup="true">tag_new.gif</new-image>
   </sidebox>
 
+  <sidebox id="3">
+    <title>Users Logged In</title>
+    <factory-class>com.silverwrist.venice.ui.sidebox.UserListBox</factory-class>
+    <bullet width="14" height="14" fixup="true">purple-ball.gif</bullet>
+    <summary>${cur} total (max ${max})</summary>
+    <anon-label>Not logged in</anon-label>
+  </sidebox>
+
   <!-- test sidebox only, do not use -->
   <!--
   <sidebox id="-1">

setup/database.sql

@@ -935,7 +935,7 @@ INSERT INTO contacts (contactid, given_name, family_name, locality, region, pcod
 # Provide the default view for Anonymous Honyak.  This view will be copied to all
 # new users.
 INSERT INTO sideboxes (uid, boxid, sequence, param)
-    VALUES (1, 1, 100, NULL), (1, 2, 200, NULL);
+    VALUES (1, 1, 100, NULL), (1, 2, 200, NULL), (1, 3, 300, NULL);
 INSERT INTO confhotlist (uid, sequence, sigid, confid)
     VALUES (1, 100, 2, 2);
 
@@ -950,7 +950,7 @@ INSERT INTO contacts (contactid, given_name, family_name, locality, region, pcod
 
 # Create the default view for Administrator.
 INSERT INTO sideboxes (uid, boxid, sequence, param)
-    VALUES (2, 1, 100, NULL), (2, 2, 200, NULL);
+    VALUES (2, 1, 100, NULL), (2, 2, 200, NULL), (2, 3, 300, NULL);
 INSERT INTO confhotlist (uid, sequence, sigid, confid)
     VALUES (2, 100, 2, 2);
 
@@ -1053,7 +1053,7 @@ INSERT INTO propuser (uid, ndx, data) VALUES (3, 0, '');
 INSERT INTO contacts (contactid, given_name, family_name, locality, region, pcode, country, email, owner_uid)
     VALUES (5, 'Test', 'User', 'Denver', 'CO', '80231', 'US', 'testuser@example.com', 3);
 INSERT INTO sideboxes (uid, boxid, sequence, param)
-    VALUES (3, 1, 100, NULL), (3, 2, 200, NULL);
+    VALUES (3, 1, 100, NULL), (3, 2, 200, NULL), (3, 3, 300, NULL);
 INSERT INTO confhotlist (uid, sequence, sigid, confid)
     VALUES (3, 100, 2, 2);
 INSERT INTO sigmember (sigid, uid, granted_lvl, locked)

src/com/silverwrist/venice/ui/Content.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -23,12 +23,12 @@ public interface Content
   public static final int MENU_SELECTOR_TOP = 0;
   public static final int MENU_SELECTOR_COMMUNITY = 1;
 
-  public abstract boolean needFrame();
+  public boolean needFrame();
 
-  public abstract int getMenuSelector();
+  public int getMenuSelector();
 
-  public abstract String getPageTitle(RequestOutput ro);
+  public String getPageTitle(RequestOutput ro);
 
-  public abstract String getPageQID();
+  public String getPageQID();
 
 } // end interface Content

src/com/silverwrist/venice/ui/ContentDirect.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -21,6 +21,6 @@ import java.io.IOException;
 
 public interface ContentDirect extends Content
 {
-  public abstract void render(RequestOutput out) throws IOException;
+  public void render(RequestOutput out) throws IOException;
 
 } // end interface ContentDirect

src/com/silverwrist/venice/ui/VeniceUISessionList.java

@@ -0,0 +1,32 @@
+/*
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
+ * 
+ * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
+ * WARRANTY OF ANY KIND, either express or implied. See the License for the specific
+ * language governing rights and limitations under the License.
+ * 
+ * The Original Code is the Venice Web Communities System.
+ * 
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
+ * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
+ * Copyright (C) 2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ */
+package com.silverwrist.venice.ui;
+
+import java.util.Iterator;
+
+public interface VeniceUISessionList
+{
+  public static final String APP_ATTR_NAME = "session.list";
+
+  public int getSessionCount();
+
+  public int getMaxSessionCount();
+
+  public Iterator listSessions();
+
+} // end interface VeniceUISessionList

src/com/silverwrist/venice/ui/config/SideBoxManager.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -25,6 +25,7 @@ import com.silverwrist.venice.core.VeniceEngine;
 import com.silverwrist.venice.core.UserContext;
 import com.silverwrist.venice.except.*;
 import com.silverwrist.venice.ui.Content;
+import com.silverwrist.venice.ui.RequestInput;
 import com.silverwrist.venice.ui.sidebox.SideBoxFactory;
 import com.silverwrist.venice.util.XMLLoader;
 
@@ -115,13 +116,12 @@ public class SideBoxManager
    *--------------------------------------------------------------------------------
    */
 
-  public final Content createSideBox(int id, VeniceEngine engine, UserContext uc)
+  public final Content createSideBox(int id, RequestInput ri) throws AccessError, DataException
-      throws AccessError, DataException
   {
     SideBoxFactory fact = (SideBoxFactory)(factories.get(new Integer(id)));
     if (fact==null)
       throw new DataException("invalid sidebox ID!");
-    return fact.create(engine,uc);
+    return fact.create(ri);
 
   } // end createSideBox
 

src/com/silverwrist/venice/ui/servlet/HttpVeniceUISession.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2002 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2002-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -28,7 +28,7 @@ import com.silverwrist.venice.ui.*;
 import com.silverwrist.venice.ui.helpers.*;
 import com.silverwrist.venice.ui.script.*;
 
-class HttpVeniceUISession implements VeniceUISession
+class HttpVeniceUISession implements VeniceUISession, HttpSessionBindingListener
 {
   /*--------------------------------------------------------------------------------
    * Static data members
@@ -47,6 +47,7 @@ class HttpVeniceUISession implements VeniceUISession
   private HttpSession session;         // HTTP session value
   private UserContext user;            // user context associated with this session
   private boolean new_session = true;  // is this a new session?
+  private HttpVeniceUISessionList m_session_list = null;
 
   /*--------------------------------------------------------------------------------
    * Constructor
@@ -200,6 +201,10 @@ class HttpVeniceUISession implements VeniceUISession
 
       } // end finally
 
+      // add this session to the global list
+      m_session_list = HttpVeniceUISessionList.get(ri);
+      m_session_list.joinSession(this);
+
     } // end if
 
   } // end preprocess
@@ -215,6 +220,9 @@ class HttpVeniceUISession implements VeniceUISession
 
   public void valueUnbound(HttpSessionBindingEvent event)
   {
+    if (m_session_list!=null)
+      m_session_list.partSession(this);
+    m_session_list = null;
     this.session = null;
     this.user = null;
 

src/com/silverwrist/venice/ui/servlet/HttpVeniceUISessionList.java

@@ -0,0 +1,103 @@
+/*
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
+ * 
+ * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
+ * WARRANTY OF ANY KIND, either express or implied. See the License for the specific
+ * language governing rights and limitations under the License.
+ * 
+ * The Original Code is the Venice Web Communities System.
+ * 
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
+ * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
+ * Copyright (C) 2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ */
+package com.silverwrist.venice.ui.servlet;
+
+import java.util.*;
+import com.silverwrist.venice.ui.*;
+
+class HttpVeniceUISessionList implements VeniceUISessionList
+{
+  /*--------------------------------------------------------------------------------
+   * Attributes
+   *--------------------------------------------------------------------------------
+   */
+
+  private int m_max = 0;                  // maximum session count
+  private HashSet m_set = new HashSet();  // hash set
+
+  /*--------------------------------------------------------------------------------
+   * Constructor
+   *--------------------------------------------------------------------------------
+   */
+
+  private HttpVeniceUISessionList(RequestInput ri)
+  {
+    ri.setAppAttribute(APP_ATTR_NAME,this);
+
+  } // end constructor
+
+  /*--------------------------------------------------------------------------------
+   * Implementations from interface VeniceUISessionList
+   *--------------------------------------------------------------------------------
+   */
+
+  public synchronized int getSessionCount()
+  {
+    return m_set.size();
+
+  } // end getSessionCount
+
+  public synchronized int getMaxSessionCount()
+  {
+    return m_max;
+
+  } // end getMaxSessionCount
+
+  public synchronized Iterator listSessions()
+  {
+    if (m_set.isEmpty())
+      return Collections.EMPTY_LIST.iterator();
+    ArrayList tmp = new ArrayList(m_set);
+    return Collections.unmodifiableList(tmp).iterator();
+
+  } // end listSessions
+
+  /*--------------------------------------------------------------------------------
+   * External operations
+   *--------------------------------------------------------------------------------
+   */
+
+  synchronized void joinSession(VeniceUISession session)
+  {
+    m_set.add(session);
+    if (m_set.size()>m_max)
+      m_max = m_set.size();
+
+  } // end joinSession
+
+  synchronized void partSession(VeniceUISession session)
+  {
+    m_set.remove(session);
+
+  } // end partSession
+
+  /*--------------------------------------------------------------------------------
+   * External static operations
+   *--------------------------------------------------------------------------------
+   */
+
+  static synchronized HttpVeniceUISessionList get(RequestInput ri)
+  {
+    HttpVeniceUISessionList rc = (HttpVeniceUISessionList)(ri.getAppAttribute(APP_ATTR_NAME));
+    if (rc==null)
+      rc = new HttpVeniceUISessionList(ri);
+    return rc;
+
+  } // end get
+
+} // end class HttpVeniceUISessionList

src/com/silverwrist/venice/ui/servlet/RequestImpl.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001-04 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -1409,7 +1409,7 @@ public class RequestImpl implements RequestInput
     for (int i=0; i<descrs.size(); i++)
     { // get all the sideboxes created
       SideBoxDescriptor d = (SideBoxDescriptor)(descrs.get(i));
-      rc[i] = sbmgr.createSideBox(d.getID(),engine,user);
+      rc[i] = sbmgr.createSideBox(d.getID(),this);
 
     } // end for
 

src/com/silverwrist/venice/ui/sidebox/CommunityBox.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001-02 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -34,11 +34,21 @@ public class CommunityBox implements SideBoxFactory
    *--------------------------------------------------------------------------------
    */
 
-  class CommunityBoxImpl implements ContentDirect
+  private class CommunityBoxImpl implements ContentDirect
   {
+    /*====================================================================
+     * Attributes
+     *====================================================================
+     */
+
     private UserContext uc;
     private List comm_list;
 
+    /*====================================================================
+     * Constructor
+     *====================================================================
+     */
+
     CommunityBoxImpl(UserContext uc) throws DataException
     {
       this.uc = uc;
@@ -46,6 +56,11 @@ public class CommunityBox implements SideBoxFactory
 
     } // end constructor
 
+    /*====================================================================
+     * Implementations from interface Content
+     *====================================================================
+     */
+
     public boolean needFrame()
     {
       return false;
@@ -81,6 +96,11 @@ public class CommunityBox implements SideBoxFactory
 
     } // end getPageQID
 
+    /*====================================================================
+     * Implementations from interface ContentDirect
+     *====================================================================
+     */
+
     public void render(RequestOutput out) throws IOException
     {
       HTMLRendering html = (HTMLRendering)(out.queryService(HTMLRendering.class));
@@ -207,9 +227,9 @@ public class CommunityBox implements SideBoxFactory
 
   } // end setConfiguration
 
-  public Content create(VeniceEngine engine, UserContext uc) throws DataException
+  public Content create(RequestInput ri) throws DataException
   {
-    return new CommunityBoxImpl(uc);
+    return new CommunityBoxImpl(ri.getUser());
 
   } // end create
   

src/com/silverwrist/venice/ui/sidebox/ConferenceBox.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001-02 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -34,11 +34,21 @@ public class ConferenceBox implements SideBoxFactory
    *--------------------------------------------------------------------------------
    */
 
-  class ConferenceBoxImpl implements ContentDirect
+  private class ConferenceBoxImpl implements ContentDirect
   {
+    /*====================================================================
+     * Attributes
+     *====================================================================
+     */
+
     private UserContext uc;     // current user context
     private List hotlist;       // current conference hotlist
 
+    /*====================================================================
+     * Constructor
+     *====================================================================
+     */
+
     ConferenceBoxImpl(UserContext uc) throws DataException
     {
       this.uc = uc;
@@ -46,6 +56,11 @@ public class ConferenceBox implements SideBoxFactory
 
     } // end constructor
 
+    /*====================================================================
+     * Implementations from interface Content
+     *====================================================================
+     */
+
     public boolean needFrame()
     {
       return false;
@@ -81,6 +96,11 @@ public class ConferenceBox implements SideBoxFactory
 
     } // end getPageQID
 
+    /*====================================================================
+     * Implementations from interface ContentDirect
+     *====================================================================
+     */
+
     public void render(RequestOutput out) throws IOException
     {
       HTMLRendering html = (HTMLRendering)(out.queryService(HTMLRendering.class));
@@ -205,9 +225,9 @@ public class ConferenceBox implements SideBoxFactory
 
   } // end setConfiguration
 
-  public Content create(VeniceEngine engine, UserContext uc) throws DataException
+  public Content create(RequestInput ri) throws DataException
   {
-    return new ConferenceBoxImpl(uc);
+    return new ConferenceBoxImpl(ri.getUser());
 
   } // end create
 

src/com/silverwrist/venice/ui/sidebox/JSPSideBoxFactory.java

@@ -9,9 +9,9 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
@@ -153,9 +153,9 @@ public class JSPSideBoxFactory implements SideBoxFactory
 
   } // end setConfiguration
 
-  public Content create(VeniceEngine engine, UserContext uc)
+  public Content create(RequestInput ri)
   {
-    return new JSPSideBox(this,engine,uc);
+    return new JSPSideBox(this,ri.getEngine(),ri.getUser());
 
   } // end create
 

src/com/silverwrist/venice/ui/sidebox/SideBoxFactory.java

@@ -9,24 +9,23 @@
  * 
  * The Original Code is the Venice Web Communities System.
  * 
- * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
  * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
- * Copyright (C) 2001 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * Copyright (C) 2001-2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
  * 
  * Contributor(s): 
  */
 package com.silverwrist.venice.ui.sidebox;
 
 import org.w3c.dom.*;
-import com.silverwrist.venice.core.VeniceEngine;
-import com.silverwrist.venice.core.UserContext;
 import com.silverwrist.venice.except.*;
 import com.silverwrist.venice.ui.Content;
+import com.silverwrist.venice.ui.RequestInput;
 
 public interface SideBoxFactory
 {
-  public abstract void setConfiguration(Element cfg) throws ConfigException;
+  public void setConfiguration(Element cfg) throws ConfigException;
 
-  public abstract Content create(VeniceEngine engine, UserContext uc) throws AccessError, DataException;
+  public Content create(RequestInput ri) throws AccessError, DataException;
 
 } // end interface SideBoxFactory

src/com/silverwrist/venice/ui/sidebox/UserListBox.java

@@ -0,0 +1,237 @@
+/*
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (the "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
+ * 
+ * Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
+ * WARRANTY OF ANY KIND, either express or implied. See the License for the specific
+ * language governing rights and limitations under the License.
+ * 
+ * The Original Code is the Venice Web Communities System.
+ * 
+ * The Initial Developer of the Original Code is Eric J. Bowersox <erbo@ricochet.com>,
+ * for Silverwrist Design Studios.  Portions created by Eric J. Bowersox are
+ * Copyright (C) 2004 Eric J. Bowersox/Silverwrist Design Studios.  All Rights Reserved.
+ * 
+ * Contributor(s): 
+ */
+package com.silverwrist.venice.ui.sidebox;
+
+import java.io.*;
+import java.util.*;
+import org.w3c.dom.*;
+import com.silverwrist.util.*;
+import com.silverwrist.venice.core.*;
+import com.silverwrist.venice.except.*;
+import com.silverwrist.venice.ui.*;
+import com.silverwrist.venice.ui.helpers.HTMLRendering;
+import com.silverwrist.venice.ui.helpers.ImageHandler;
+
+public class UserListBox implements SideBoxFactory
+{
+  /*--------------------------------------------------------------------------------
+   * Internal class that implements the actual sidebox
+   *--------------------------------------------------------------------------------
+   */
+
+  private class UserListBoxImpl implements ContentDirect
+  {
+    /*====================================================================
+     * Attributes
+     *====================================================================
+     */
+
+    private boolean m_logged_in;
+    private int m_total_count;
+    private int m_max_count;
+    private int m_anon_count = 0;
+    private TreeSet m_users = new TreeSet();
+
+    /*====================================================================
+     * Constructor
+     *====================================================================
+     */
+
+    UserListBoxImpl(boolean logged_in, VeniceUISessionList slist)
+    {
+      m_logged_in = logged_in;
+      Iterator it = null;
+      synchronized (slist)
+      { // get user information
+	m_total_count = slist.getSessionCount();
+	m_max_count = slist.getMaxSessionCount();
+	it = slist.listSessions();
+
+      } // end synchronized block
+
+      while (it.hasNext())
+      { // build the user list and the anon user count
+	UserContext uc = ((VeniceUISession)(it.next())).getUser();
+	if (uc.isLoggedIn())
+	  m_users.add(uc.getUserName());
+	else
+	  m_anon_count++;
+
+      } // end while
+
+    } // end constructor
+
+    /*====================================================================
+     * Implementations from interface Content
+     *====================================================================
+     */
+
+    public boolean needFrame()
+    {
+      return false;
+
+    } // end needFrame
+
+    public int getMenuSelector()
+    {
+      return MENU_SELECTOR_NOCHANGE;
+
+    } // end getMenuSelector
+
+    public String getPageTitle(RequestOutput ro)
+    {
+      if (m_title_image!=null)
+      { // return an image rendering
+	ImageHandler ih = (m_logged_in ? m_title_image : m_anon_title_image);
+	return ih.getRendering(ro);
+
+      } // end if
+      else
+      { // return a title string
+	String rc = (m_logged_in ? m_title : m_anon_title);
+	return StringUtil.encodeHTML(rc);
+
+      } // end else
+
+    } // end getPageTitle
+
+    public String getPageQID()
+    {
+      return null;
+
+    } // end getPageQID
+
+    /*====================================================================
+     * Implementations from interface ContentDirect
+     *====================================================================
+     */
+
+    public void render(RequestOutput out) throws IOException
+    {
+      HTMLRendering html = (HTMLRendering)(out.queryService(HTMLRendering.class));
+      String norm_font = html.getFontTag(html.SIDEBOX_CONTENT_FOREGROUND,"sidebox");
+      String hilite = html.getFontTag(html.SIDEBOX_CONTENT_LINK,"sidebox");
+
+      out.write("<table align=\"left\" border=\"0\" cellpadding=\"0\" cellspacing=\"2\"><tr valign=\"middle\">"
+		+ "<td align=\"left\" class=\"sidebox\" colspan=\"2\">" + norm_font + "<b>");
+      HashMap m = new HashMap();
+      m.put("cur",String.valueOf(m_total_count));
+      m.put("max",String.valueOf(m_max_count));
+      out.write(StringUtil.replaceAllVariables(m_summary,m) + "</b></FONT></td></tr>");
+      if (m_anon_count>0)
+      { // write the anonymous user count
+	out.write("<tr valign=\"middle\"><td align=\"center\" width=\"" + m_bullet.getWidth() + "\">");
+	m_bullet.render(out);
+	out.write("</td><td align=\"left\" class=\"sidebox\">" + norm_font + m_anon_label + " (" + m_anon_count
+		  + ")</FONT></td></tr>");
+
+      } // end if
+
+      for (Iterator it=m_users.iterator(); it.hasNext(); )
+      { // get user name and write it out to the list
+	String uname = (String)(it.next());
+	out.write("<tr valign=\"middle\"><td align=\"center\" width=\"" + m_bullet.getWidth() + "\">");
+	m_bullet.render(out);
+	out.write("</td><td align=\"left\" class=\"sidebox\"><a class=\"sidebox\" target=\"_blank\" href=\"");
+	out.write(html.formatURL("user/" + uname,html.SERVLET));
+	out.write("\">" + hilite + uname + "</FONT></a></td></tr>");
+
+      } // end for
+
+      out.write("</table>\n");
+
+    } // end render
+
+  } // end class UserListBoxImpl
+
+  /*--------------------------------------------------------------------------------
+   * Attributes
+   *--------------------------------------------------------------------------------
+   */
+
+  private ImageHandler m_title_image;       // title image for sidebox for logged-in users
+  private ImageHandler m_anon_title_image;  // title image for sidebox for not-logged-in users
+  private String m_title;                   // title of sidebox for logged-in users
+  private String m_anon_title;              // title of sidebox for not-logged-in users
+  private ImageHandler m_bullet;            // bullet image
+  private String m_summary;                 // summary message
+  private String m_anon_label;              // anonymous label
+
+  /*--------------------------------------------------------------------------------
+   * Constructor
+   *--------------------------------------------------------------------------------
+   */
+
+  public UserListBox()
+  { // do nothing
+  } // end constructor
+
+  /*--------------------------------------------------------------------------------
+   * Implementations from interface SideBoxFactory
+   *--------------------------------------------------------------------------------
+   */
+
+  public void setConfiguration(Element cfg) throws ConfigException
+  {
+    DOMElementHelper cfg_h = new DOMElementHelper(cfg);
+    m_title_image = new ImageHandler(cfg_h.getSubElement("title-image"));
+    if (m_title_image.isDefined())
+    { // we're using image titles...
+      m_title = m_anon_title = null;
+      m_anon_title_image = new ImageHandler(cfg_h.getSubElement("anon-title-image"));
+      if (!(m_anon_title_image.isDefined()))
+	m_anon_title_image = m_title_image;
+
+    } // end if
+    else
+    { // standard textual title
+      m_title_image = m_anon_title_image = null;
+      m_title = cfg_h.getSubElementText("title");
+      if (m_title==null)
+	throw new ConfigException("no <title/> specified for conference list sidebox",cfg);
+      m_title += ":";
+      m_anon_title = cfg_h.getSubElementText("anon-title");
+      if (m_anon_title==null)
+	m_anon_title = m_title;
+      else
+	m_anon_title += ":";
+
+    } // end else
+
+    m_bullet = new ImageHandler(cfg_h.getSubElement("bullet"),"purple-ball.gif","*",14,14);
+
+    m_summary = cfg_h.getSubElementText("summary");
+    if (m_summary==null)
+      m_summary = "${cur} total (max ${max})";
+
+    m_anon_label = cfg_h.getSubElementText("anon-label");
+    if (m_anon_label==null)
+      m_anon_label = "Anonymous";
+
+  } // end setConfiguration
+
+  public Content create(RequestInput ri) throws AccessError, DataException
+  {
+    VeniceUISessionList slist = (VeniceUISessionList)(ri.getAppAttribute(VeniceUISessionList.APP_ATTR_NAME));
+    if (slist==null)
+      throw new DataException("session list object not found");
+    return new UserListBoxImpl(ri.getUser().isLoggedIn(),slist);
+
+  } // end create
+
+} // end class UserListBox