Index: lams_tool_lamc/src/java/org/lamsfoundation/lams/tool/mc/web/McMonitoringStarterAction.java
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diff -u
--- lams_tool_lamc/src/java/org/lamsfoundation/lams/tool/mc/web/McMonitoringStarterAction.java	(revision 0)
+++ lams_tool_lamc/src/java/org/lamsfoundation/lams/tool/mc/web/McMonitoringStarterAction.java	(revision cdf12800c54f7356c41a8eeee5dbf9ffeb1a7346)
@@ -0,0 +1,136 @@
+
+package org.lamsfoundation.lams.tool.mc.web;
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+import org.apache.log4j.Logger;
+import org.apache.struts.Globals;
+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.apache.struts.action.ActionMessage;
+import org.apache.struts.action.ActionMessages;
+import org.lamsfoundation.lams.tool.mc.McAppConstants;
+import org.lamsfoundation.lams.tool.mc.McApplicationException;
+import org.lamsfoundation.lams.tool.mc.McUtils;
+import org.lamsfoundation.lams.tool.mc.service.IMcService;
+import org.lamsfoundation.lams.tool.mc.service.McServiceProxy;
+import org.lamsfoundation.lams.usermanagement.dto.UserDTO;
+import org.lamsfoundation.lams.web.session.SessionManager;
+import org.lamsfoundation.lams.web.util.AttributeNames;
+
+
+/**
+ * 
+ * @author Ozgur Demirtas
+ *
+ */
+
+public class McMonitoringStarterAction extends Action implements McAppConstants {
+	static Logger logger = Logger.getLogger(McMonitoringStarterAction.class.getName());
+
+	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) 
+  								throws IOException, ServletException, McApplicationException {
+
+		IMcService mcService = McServiceProxy.getMcService(getServlet().getServletContext());
+	    logger.debug("retrieving mcService from proxy: " + mcService);
+	    request.getSession().setAttribute(TOOL_SERVICE, mcService);		
+
+		McMonitoringForm mcMonitoringForm = (McMonitoringForm) form;
+
+	    /*
+	     * mark the http session as a monitoring activity 
+	     */
+	    request.getSession().setAttribute(TARGET_MODE,TARGET_MODE_MONITORING);
+	    
+	    /*
+	     * persist time zone information to session scope. 
+	     */
+	    McUtils.persistTimeZone(request);
+	    ActionForward validateParameters=validateParameters(request, mapping);
+	    logger.debug("validateParamaters: " + validateParameters);
+	    if (validateParameters != null)
+	    {
+	    	return validateParameters;
+	    }
+  
+	    Long toolSessionID=(Long) request.getSession().getAttribute(AttributeNames.PARAM_TOOL_SESSION_ID);
+	    logger.debug("retrieved toolSessionID: " + toolSessionID);
+    	
+	    logger.debug("forwarding to: " + LOAD_MONITORING);
+	    return (mapping.findForward(LOAD_MONITORING));	
+	}
+	
+	
+	protected ActionForward validateParameters(HttpServletRequest request, ActionMapping mapping)
+	{
+		/*
+	     * obtain and setup the current user's data 
+	     */
+	    String userID = "";
+	    HttpSession ss = SessionManager.getSession();
+	    UserDTO user = (UserDTO) ss.getAttribute(AttributeNames.USER);
+	    if ((user == null) || (user.getUserID() == null))
+	    {
+	    	logger.debug("error: The tool expects userId");
+	    	persistError(request,"error.learningUser.notAvailable");
+	    	request.setAttribute(USER_EXCEPTION_USERID_NOTAVAILABLE, new Boolean(true));
+			return (mapping.findForward(ERROR_LIST));
+	    }else
+	    	userID = user.getUserID().toString();
+	    
+	    logger.debug("retrieved userId: " + userID);
+    	request.getSession().setAttribute(USER_ID, userID);
+		
+	    
+	    /*
+	     * process incoming tool session id and later derive toolContentId from it. 
+	     */
+	    //String strToolSessionId=request.getParameter(TOOL_SESSION_ID);
+    	String strToolSessionId=request.getParameter(AttributeNames.PARAM_TOOL_SESSION_ID);
+	    long toolSessionId=0;
+	    if ((strToolSessionId == null) || (strToolSessionId.length() == 0)) 
+	    {
+	    	persistError(request, "error.toolSessionId.required");
+	    	request.setAttribute(USER_EXCEPTION_TOOLSESSIONID_REQUIRED, new Boolean(true));
+			return (mapping.findForward(ERROR_LIST));
+	    }
+	    else
+	    {
+	    	try
+			{
+	    		toolSessionId=new Long(strToolSessionId).longValue();
+		    	logger.debug("passed TOOL_SESSION_ID : " + new Long(toolSessionId));
+		    	request.getSession().setAttribute(TOOL_SESSION_ID,new Long(toolSessionId));	
+			}
+	    	catch(NumberFormatException e)
+			{
+	    		persistError(request, "error.sessionId.numberFormatException");
+	    		logger.debug("add error.sessionId.numberFormatException to ActionMessages.");
+				request.setAttribute(USER_EXCEPTION_NUMBERFORMAT, new Boolean(true));
+				return (mapping.findForward(ERROR_LIST));
+			}
+	    }
+	    return null;
+	}
+
+	
+	/**
+     * persists error messages to request scope
+     * @param request
+     * @param message
+     */
+	public void persistError(HttpServletRequest request, String message)
+	{
+		ActionMessages errors= new ActionMessages();
+		errors.add(Globals.ERROR_KEY, new ActionMessage(message));
+		logger.debug("add " + message +"  to ActionMessages:");
+		saveErrors(request,errors);	    	    
+	}
+}