Index: lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/web/actions/LearningAction.java
===================================================================
diff -u -rb70e2750284cb613bbe37fb30b69091d679c3bf4 -r79ecd521e801b87cfefe154777d21bcb6a238601
--- lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/web/actions/LearningAction.java	(.../LearningAction.java)	(revision b70e2750284cb613bbe37fb30b69091d679c3bf4)
+++ lams_tool_chat/src/java/org/lamsfoundation/lams/tool/chat/web/actions/LearningAction.java	(.../LearningAction.java)	(revision 79ecd521e801b87cfefe154777d21bcb6a238601)
@@ -26,30 +26,93 @@
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
 
 import org.apache.log4j.Logger;
 import org.apache.struts.action.Action;
 import org.apache.struts.action.ActionForm;
 import org.apache.struts.action.ActionForward;
 import org.apache.struts.action.ActionMapping;
+import org.lamsfoundation.lams.tool.ToolAccessMode;
+import org.lamsfoundation.lams.tool.chat.dao.hibernate.ChatUserDAO;
+import org.lamsfoundation.lams.tool.chat.model.ChatSession;
+import org.lamsfoundation.lams.tool.chat.model.ChatUser;
+import org.lamsfoundation.lams.tool.chat.service.ChatServiceProxy;
+import org.lamsfoundation.lams.tool.chat.service.IChatService;
+import org.lamsfoundation.lams.tool.chat.util.ChatConstants;
+import org.lamsfoundation.lams.tool.chat.util.ChatException;
+import org.lamsfoundation.lams.usermanagement.dto.UserDTO;
+import org.lamsfoundation.lams.util.WebUtil;
+import org.lamsfoundation.lams.web.session.SessionManager;
+import org.lamsfoundation.lams.web.util.AttributeNames;
 
 /**
  * @author
  * @version
  * 
- * @struts.action path="/learning"                
- * @struts.action-forward name="success" path="tiles:/learning/main"                
+ * @struts.action path="/learning"
+ * @struts.action-forward name="success" path="tiles:/learning/main"
  */
 public class LearningAction extends Action {
 
 	private static Logger log = Logger.getLogger(LearningAction.class);
 
-	public ActionForward execute(ActionMapping mapping, ActionForm form,
+	private static final boolean MODE_OPTIONAL = false;
+
+	private IChatService chatService;
+
+public ActionForward execute(ActionMapping mapping, ActionForm form,
 			HttpServletRequest request, HttpServletResponse response)
 			throws Exception {
-		// TODO Auto-generated method stub
-		log.info("excuting learning action");
+		// 'toolSessionID' and 'mode' paramters are expected to be present.
+		// TODO need to catch exceptions and handle errors.
+		ToolAccessMode mode = WebUtil.readToolAccessModeParam(request, AttributeNames.PARAM_MODE,
+				MODE_OPTIONAL);		
+		Long toolSessionID = WebUtil.readLongParam(request, AttributeNames.PARAM_TOOL_SESSION_ID);
+		
+		// set up chatService
+		if (chatService == null) {
+			chatService = ChatServiceProxy.getChatService(this.getServlet()
+					.getServletContext());
+		}
+		
+		// Retreive the session
+		ChatSession chatSession = chatService.getSessionBySessionId(toolSessionID);
+		if (chatSession == null) {
+			throw new ChatException("Cannot retreive session with toolSessionId" + toolSessionID);
+		}
+		
+		// Retrieve the current user
+		ChatUser chatUser = getCurrentUser(toolSessionID);
+		
+		// Create the room if it doesnt exist
+		if (chatSession.getJabberRoom() == null) {
+			chatService.createJabberRoom(chatSession);			
+		}
+		
+		
+		request.setAttribute("XMPPDOMAIN", ChatConstants.XMPPDOMAIN);
+		request.setAttribute("USERNAME", chatUser.getLoginName());
+		request.setAttribute("PASSWORD", chatUser.getLoginName());
+		request.setAttribute("CONFERENCEROOM", chatSession.getJabberRoom());
+		request.setAttribute("NICK", chatUser.getLoginName());
+		
 		return mapping.findForward("success");
-	}
+		
+	}	private ChatUser getCurrentUser(Long toolSessionId) {
+		UserDTO user = (UserDTO) SessionManager.getSession().getAttribute(
+				AttributeNames.USER);
 
+		// attempt to retrieve user using userId and toolSessionId
+		ChatUser chatUser = chatService.getUserByUserIdAndSessionId(new Long(
+				user.getUserID().intValue()), toolSessionId);
+
+		if (chatUser == null) {
+			ChatSession chatSession = chatService
+					.getSessionBySessionId(toolSessionId);
+			chatUser = chatService.createChatUser(user, chatSession);
+		}
+
+		return chatUser;
+	}
 }