/**
* Copyright (c) 2011-2014, OpenIoT
*
* This file is part of OpenIoT.
*
* OpenIoT is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* OpenIoT 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenIoT. If not, see <http://www.gnu.org/licenses/>.
*
* Contact: OpenIoT mailto: info@openiot.eu
* @author Behnaz Bostanipour
* @author Timotee Maret
* @author Julien Eberle
*/
package org.openiot.gsn.http.ac;
import org.openiot.gsn.Main;
import org.openiot.gsn.http.WebConstants;
import org.apache.log4j.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.*;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;
/**
* Created by IntelliJ IDEA.
* User: Behnaz Bostanipour
* Date: Apr 21, 2010
* Time: 1:04:58 PM
* To change this template use File | Settings | File Templates.
*/
public class MyChangeGroupCombinationServlet extends HttpServlet
{
private static transient Logger logger = Logger.getLogger( MyChangeGroupCombinationServlet.class );
/****************************************** Servlet Methods*******************************************/
/******************************************************************************************************/
public void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter out = res.getWriter();
// Get the session
HttpSession session = req.getSession();
User user = (User) session.getAttribute("user");
ConnectToDB ctdb = null;
if (user == null)
{
this.redirectToLogin(req,res);
}
else
{
this.checkSessionScheme(req,res);
if(user.isAdmin()== false)
{
res.sendError( WebConstants.ACCESS_DENIED , "Access denied." );
}
else
{
printHeader(out);
printLayoutMastHead( out, user);
this.printLayoutContent(out);
ParameterSet pm = new ParameterSet(req);
if(pm.valueForName("groupname")==null)
{
out.println("<p> can not print the form ! </p>");
}
else
{
if(pm.valueForName("groupname").equals(""))
{
res.sendRedirect("/");
}
try
{
ctdb = new ConnectToDB();
printForm(out,new Group(pm.valueForName("groupname"),ctdb.getDataSourceListForGroup(pm.valueForName("groupname"))));
}
catch(Exception e)
{
out.println("<p> can not print the form ! </p>");
logger.error("ERROR IN DOGET : ");
logger.error(e.getMessage(),e);
}
finally
{
if(ctdb!=null)
{
ctdb.closeStatement();
ctdb.closeConnection();
}
}
}
this.printLayoutFooter(out);
}
}
}
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
doGet(req,res);
handleForm(req,res);
}
/****************************************** HTML Printing Methods*******************************************/
/***********************************************************************************************************/
private void printHeader(PrintWriter out)
{
out.println("<HTML>");
out.println("<HEAD>");
out.println("<TITLE>Change Group Structure Form</TITLE>");
out.println(" <link rel=\"stylesheet\" media=\"screen\" type=\"text/css\" href=\"/style/acstyle.css\"/>");
//printStyle(out);
out.println("</HEAD>");
out.println("<body>");
out.println("<div id=\"container\">");
out.println("<div class=box>");
}
private void printLayoutMastHead(PrintWriter out, User user)
{
out.println("<div id=\"masthead\">");
out.println("<div class=\"image_float\"><img src=\"/style/gsn-mark.png\" alt=\"GSN logo\" /></div><br>");
out.println("<h1>Change Group Structure Form</h1>");
out.println("<div class=\"spacer\"></div>");
out.println("</div>");
out.println("<div id=\"mastheadborder\">");
this.printLinks(out);
this.printUserName(out, user);
out.println("<br><br>");
out.println("</div>");
}
private void printLayoutContent(PrintWriter out)
{
out.println("<div id=\"content\">");
}
private void printLayoutFooter(PrintWriter out)
{
out.println("</div>");
out.println("<div id=\"footer\">");
out.println(" <p align=\"center\"><FONT COLOR=\"#000000\"/>Powered by <a class=\"nonedecolink\" href=\"http://globalsn.sourceforge.net/\">GSN</a>, Distributed Information Systems Lab, EPFL 2010</p>");
out.println("</div>");
out.println("</div>");
out.println("</div>");
out.println("</body>");
out.println("</html>");
}
private void printForm(PrintWriter out,Group group)
{
String groupName= group.getGroupName();
Vector remainingDataSourcelist=this.getDSNamesDifference(group.getDataSourceList());
if(remainingDataSourcelist==null)
{
out.println("<p><LI>Can not print the form !</p>");
return;
}
else
{
out.println("<FORM METHOD=POST>"); // posts to itself
//out.println("<div class=\"image_float\">");
this.printGroupDataSourceList(out,group);
//out.println("</div>");
out.println("<br>");
out.println("<h2>Other virtual sensors</h2>");
out.println("<BR>");
this.printOtherDataSourceList(out,remainingDataSourcelist);
//out.println("<div class=\"spacer\"></div>");
//out.println("<BR>");
out.println("<BR>");
out.println("<BR>");
this.printFormButtons(out);
out.println("</FORM>");
}
}
private void printLinks(PrintWriter out)
{
out.println("<a class=linkclass href=/gsn/MyGroupManagementServlet>group management</a>");
out.println("<a class=linkclass href=\"/gsn/MyLogoutHandlerServlet\">logout</a>");
}
private void printUserName(PrintWriter out, User user)
{
//String username=user.getUserName();
out.println("<p id=\"login\">logged in as : "+user.getUserName()+"</p>");
}
private void printGroupDataSourceList(PrintWriter out, Group group)
{
DataSource ds=null;
String dsname=null;
String dstype=null;
String groupName= group.getGroupName();
out.println("<h2>Group Information</h2><br>");
out.println("<table>");
out.println("<tr><th>group name</th><td>"+groupName+"</td></tr>");
out.println("</table><br>");
out.println("<h2>Curent virtual sensors in this group</h2><br>");
if(group.getDataSourceList().size()==0)
{
out.println("<table class=transparenttable>");
out.println("<tr><td>No virtaul sensor is available.</td></tr>");
out.println("</table>");
}
else
{ out.println("<table>");
out.println("<tr><th> virtual sensor name </th>");
out.println("<th> access right</th></tr>");
for(int j=0;j<group.getDataSourceList().size();j++)
{
ds=(DataSource)group.getDataSourceList().get(j);
dsname=ds.getDataSourceName();
dstype=ds.getDataSourceType();
out.println("<tr><td>" + dsname + "</td>");
if(dstype.charAt(0)=='1')
{
out.println("<td><INPUT CHECKED TYPE=RADIO NAME="+dsname+" VALUE= 1> read");
out.println("<INPUT TYPE=RADIO NAME="+dsname+" VALUE= 2> write");
out.println("<INPUT TYPE=RADIO NAME="+dsname+" VALUE=3> read/write");
}
else if(dstype.charAt(0)=='2')
{
out.println("<td><INPUT TYPE=RADIO NAME="+dsname+" VALUE= 1> read ");
out.println("<INPUT CHECKED TYPE=RADIO NAME="+dsname+" VALUE= 2> write ");
out.println("<INPUT TYPE=RADIO NAME="+dsname+" VALUE=3> read/write");
}
else if(dstype.charAt(0)=='3')
{
out.println("<td><INPUT TYPE=RADIO NAME="+dsname+" VALUE= 1> read ");
out.println("<INPUT TYPE=RADIO NAME="+dsname+" VALUE= 2> write");
out.println("<INPUT CHECKED TYPE=RADIO NAME="+dsname+" VALUE=3> read/write");
}
out.println("<INPUT TYPE=RADIO NAME="+dsname+" VALUE=0> delete </td></tr>");
}
out.println("</table>");
}
}
private void printOtherDataSourceList(PrintWriter out, Vector dataSourceList)
{
DataSource ds=null;
String dataSourceName=null;
//out.println("<table class=tablewithgreatleftmargin>");
if(dataSourceList.size()==0)
{
out.println("<table class=transparenttable>");
out.println("<tr><td>No virtaul sensor is available.</td></tr>");
out.println("</table>");
}
else
{
out.println("<table>");
out.println("<tr><th> virtual sensor name </th>");
out.println("<th> access right</th></tr>");
for(int i=0; i<dataSourceList.size();i++)
{
ds=(DataSource)(dataSourceList.get(i));
dataSourceName=ds.getDataSourceName();
out.println("<tr><td>" + dataSourceName + "</td>");
out.println("<td><FONT COLOR=#333><INPUT TYPE=RADIO NAME="+dataSourceName+" VALUE= 1> read ");
out.println("<FONT COLOR=#333><INPUT TYPE=RADIO NAME="+dataSourceName+" VALUE= 2> write ");
out.println("<FONT COLOR=#333><INPUT TYPE=RADIO NAME="+dataSourceName+" VALUE=3> read/write </td></tr>");
}
out.println("</table>");
}
}
private void printFormButtons(PrintWriter out)
{
//out.println("<table class=transparenttable>");
out.println("<INPUT TYPE=SUBMIT class=sumitbuttonstyle VALUE=\"Submit\">");
out.println("<INPUT TYPE=RESET class=sumitbuttonstyle VALUE=\"Reset\">");
//out.println("</table>");
}
/****************************************** DB related Methods*******************************************/
/********************************************************************************************************************/
private Vector getDSNamesDifference(Vector newVector)
{
Vector dsNamesDifference =null;
ConnectToDB ctdb = null;
try
{ ctdb = new ConnectToDB();
dsNamesDifference = ctdb.getDataSourceListsDifference(this.dataSourceVectorForDataSourceNames(ctdb.getValuesVectorForOneColumnUnderOneCondition(new Column("DATASOURCENAME"),new Column("ISCANDIDATE","no"),"ACDATASOURCE")),newVector);
}
catch(Exception e)
{
logger.error("ERROR IN getDSNamesDifference : ");
logger.error(e.getMessage(),e);
}
finally
{
if(ctdb!=null)
{
ctdb.closeStatement();
ctdb.closeConnection();
}
}
return dsNamesDifference;
}
/****************************************** AC related Methods*******************************************/
/********************************************************************************************************************/
private void handleForm(HttpServletRequest req,HttpServletResponse res) throws IOException
{
HttpSession session = req.getSession();
PrintWriter out = (PrintWriter) session.getAttribute("out");
ParameterSet pm = new ParameterSet(req);
ConnectToDB ctdb = null;
try
{
ctdb = new ConnectToDB();
Group changedGroup= new Group(pm.valueForName("groupname"),ctdb.getChangedDataSourceListForParameterSet(pm));
ctdb.changeGroupCombination(changedGroup);
res.sendRedirect("/gsn/MyGroupManagementServlet");
}
catch(Exception e)
{
out.println("Change group combination was not successful. <BR>");
out.println("Exception caught : "+e.getMessage());
}
finally
{
if(ctdb!=null)
{
ctdb.closeStatement();
ctdb.closeConnection();
}
}
}
/****************************************** Client Session related Methods*******************************************/
/********************************************************************************************************************/
private void checkSessionScheme(HttpServletRequest req, HttpServletResponse res)throws IOException
{
if(req.getScheme().equals("https")== true)
{
if((req.getSession().getAttribute("scheme")==null))
{
req.getSession().setAttribute("scheme","https");
}
}
else if(req.getScheme().equals("http")== true )
{
if((req.getSession().getAttribute("scheme")==null))
{
req.getSession().setAttribute("scheme","http");
}
res.sendRedirect("https://"+req.getServerName()+":"+ Main.getContainerConfig().getSSLPort()+"/gsn/MyChangeGroupCombinationServlet");
}
}
private void redirectToLogin(HttpServletRequest req, HttpServletResponse res)throws IOException
{
req.getSession().setAttribute("login.target", HttpUtils.getRequestURL(req).toString());
res.sendRedirect("/gsn/MyLoginHandlerServlet");
}
private Vector dataSourceVectorForDataSourceNames(Vector dataSourceNames)
{
Vector dataSourceVector = new Vector();
for(int i=0;i<dataSourceNames.size();i++)
{
dataSourceVector.add(new DataSource((String)dataSourceNames.get(i)));
}
return dataSourceVector;
}
}