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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.*;
/**
*
* @author atsuko
*/
@WebServlet(name = "PLServlet", urlPatterns = {"/plist"})
public class PLServlet 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 PLServlet");
out.println("");
out.println("");
out.println("Servlet PLServlet 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 {
//processRequest(request, response);
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 ep = request.getParameter("ep");
String st = request.getParameter("startclass");
String en = request.getParameter("endclass");
//String ask = request.getParameter("ask");
// String
String uri = request.getQueryString();
System.out.println(uri);
HttpSession session = request.getSession();
QueryPathGenerator qpg = (QueryPathGenerator)session.getAttribute("qpg");
if ( qpg == null ){
qpg = new QueryPathGenerator();
}
SClass[] classes = qpg.getClasses();
qpg.setClassLabels(classes);
Path[] paths = null;
paths = qpg.getPaths(st, en);
if ( paths == null ){
out.print(" ");
}else{
String jsonstr = "[";
for(int i = 0; i< paths.length; i++){
if (i > 0 && paths[i] != null){
jsonstr += ",";
}
if ( paths[i] == null ){
continue;
}
jsonstr += paths[i].toJSONString4(qpg);
}
jsonstr += "]";
// For debug
/*
System.out.println("JSON:");
System.out.println(jsonstr);
*/
out.print(jsonstr);
}
}
/**
* 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";
}//
}