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*/
package org.biohackathon.SPARQLBuilder.www;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.biohackathon.SPARQLBuilder.OWL.*;
import javax.json.*;
import java.util.*;
//import java.io.*;
/**
*
* @author atsuko
*/
@WebServlet(name = "EPServlet", urlPatterns = {"/eplist"})
public class EPServlet extends HttpServlet {
private static final String FILENAME = "cdata/";
/**
* Processes requests for both HTTP GET and POST
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("");
out.println("");
out.println("");
out.println("Servlet EPServlet");
out.println("");
out.println("");
out.println("Servlet EPServlet at " + request.getContextPath() + "
");
out.println("");
out.println("");
}
}
//
/**
* Handles the HTTP GET method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession();
// Initialize the session
session.removeAttribute("qpg");
//session.removeAttribute("graph");
QueryPathGenerator qpg = new QueryPathGenerator();
response.setContentType("application/json;charset=UTF-8");
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "GET");
response.setHeader("Access-Control-Allow-Headers", request.getHeader("Access-Control-Request-Headers"));
response.setHeader("Access-Control-Max-Age", "-1");
PrintWriter out = response.getWriter();
String[] elist = qpg.getFactory().getEndpointURIList();
SortedSet sortedelist = new TreeSet();
for (int i = 0; i < elist.length; i++ ){
sortedelist.add(elist[i]);
}
JsonBuilderFactory jbfactory = Json.createBuilderFactory(null);
JsonArrayBuilder jab = jbfactory.createArrayBuilder();
Iterator eit = sortedelist.iterator();
while( eit.hasNext() ){
jab.add(eit.next());
}
JsonArray ja = jab.build();
out.print(ja);
session.setAttribute("qpg", qpg);
}
/**
* Handles the HTTP POST method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}//
}