| 1 | /* |
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| 2 | * To change this license header, choose License Headers in Project Properties. |
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| 3 | * To change this template file, choose Tools | Templates |
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| 4 | * and open the template in the editor. |
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| 5 | */ |
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| 6 | |
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| 7 | package org.biohackathon.SPARQLBuilder.www; |
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| 8 | |
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| 9 | import java.io.IOException; |
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| 10 | import java.io.PrintWriter; |
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| 11 | import javax.servlet.ServletException; |
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| 12 | import javax.servlet.annotation.WebServlet; |
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| 13 | import javax.servlet.http.HttpServlet; |
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| 14 | import javax.servlet.http.HttpServletRequest; |
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| 15 | import javax.servlet.http.HttpServletResponse; |
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| 16 | import javax.servlet.http.HttpSession; |
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| 17 | import org.biohackathon.SPARQLBuilder.OWL.*; |
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| 18 | |
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| 19 | /** |
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| 20 | * |
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| 21 | * @author atsuko |
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| 22 | */ |
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| 23 | @WebServlet(name = "PLServlet", urlPatterns = {"/plist"}) |
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| 24 | public class PLServlet extends HttpServlet { |
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| 25 | |
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| 26 | private static final String FILENAME = "cdata/"; |
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| 27 | |
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| 28 | /** |
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| 29 | * Processes requests for both HTTP <code>GET</code> and <code>POST</code> |
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| 30 | * methods. |
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| 31 | * |
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| 32 | * @param request servlet request |
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| 33 | * @param response servlet response |
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| 34 | * @throws ServletException if a servlet-specific error occurs |
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| 35 | * @throws IOException if an I/O error occurs |
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| 36 | */ |
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| 37 | protected void processRequest(HttpServletRequest request, HttpServletResponse response) |
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| 38 | throws ServletException, IOException { |
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| 39 | response.setContentType("text/html;charset=UTF-8"); |
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| 40 | try (PrintWriter out = response.getWriter()) { |
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| 41 | /* TODO output your page here. You may use following sample code. */ |
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| 42 | out.println("<!DOCTYPE html>"); |
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| 43 | out.println("<html>"); |
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| 44 | out.println("<head>"); |
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| 45 | out.println("<title>Servlet PLServlet</title>"); |
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| 46 | out.println("</head>"); |
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| 47 | out.println("<body>"); |
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| 48 | out.println("<h1>Servlet PLServlet at " + request.getContextPath() + "</h1>"); |
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| 49 | out.println("</body>"); |
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| 50 | out.println("</html>"); |
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| 51 | } |
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| 52 | } |
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| 53 | |
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| 54 | // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> |
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| 55 | /** |
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| 56 | * Handles the HTTP <code>GET</code> method. |
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| 57 | * |
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| 58 | * @param request servlet request |
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| 59 | * @param response servlet response |
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| 60 | * @throws ServletException if a servlet-specific error occurs |
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| 61 | * @throws IOException if an I/O error occurs |
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| 62 | */ |
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| 63 | @Override |
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| 64 | protected void doGet(HttpServletRequest request, HttpServletResponse response) |
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| 65 | throws ServletException, IOException { |
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| 66 | //processRequest(request, response); |
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| 67 | response.setContentType("application/json;charset=UTF-8"); |
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| 68 | response.setHeader("Access-Control-Allow-Origin", "*"); |
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| 69 | response.setHeader("Access-Control-Allow-Methods", "GET"); |
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| 70 | response.setHeader("Access-Control-Allow-Headers", request.getHeader("Access-Control-Request-Headers")); |
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| 71 | response.setHeader("Access-Control-Max-Age", "-1"); |
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| 72 | PrintWriter out = response.getWriter(); |
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| 73 | String ep = request.getParameter("ep"); |
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| 74 | String st = request.getParameter("startclass"); |
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| 75 | String en = request.getParameter("endclass"); |
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| 76 | String ask = request.getParameter("ask"); |
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| 77 | |
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| 78 | HttpSession session = request.getSession(); |
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| 79 | QueryPathGenerator qpg = (QueryPathGenerator)session.getAttribute("qpg"); |
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| 80 | if ( qpg == null ){ |
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| 81 | qpg = new QueryPathGenerator(ep); |
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| 82 | } |
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| 83 | SClass[] classes = qpg.getClasses(null); |
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| 84 | Path[] paths = null; |
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| 85 | //if ( ask == null ){ |
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| 86 | // paths = qpg.getPaths(st, en, false); |
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| 87 | //}else if ( ask.equalsIgnoreCase("true")){ |
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| 88 | paths = qpg.getPaths(st, en, true); |
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| 89 | //}else{ |
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| 90 | // paths = qpg.getPaths(st, en, false); |
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| 91 | //} |
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| 92 | |
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| 93 | String jsonstr = "["; |
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| 94 | for(int i = 0; i< paths.length; i++){ |
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| 95 | if (i > 0 && paths[i] != null){ |
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| 96 | jsonstr += ","; |
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| 97 | } |
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| 98 | if ( paths[i] == null ){ |
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| 99 | continue; |
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| 100 | } |
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| 101 | jsonstr += paths[i].toJSONString3(classes); |
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| 102 | } |
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| 103 | jsonstr += "]"; |
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| 104 | // For debug |
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| 105 | System.out.println("JSON:"); |
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| 106 | System.out.println(jsonstr); |
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| 107 | out.print(jsonstr); |
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| 108 | } |
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| 109 | |
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| 110 | /** |
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| 111 | * Handles the HTTP <code>POST</code> method. |
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| 112 | * |
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| 113 | * @param request servlet request |
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| 114 | * @param response servlet response |
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| 115 | * @throws ServletException if a servlet-specific error occurs |
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| 116 | * @throws IOException if an I/O error occurs |
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| 117 | */ |
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| 118 | @Override |
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| 119 | protected void doPost(HttpServletRequest request, HttpServletResponse response) |
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| 120 | throws ServletException, IOException { |
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| 121 | processRequest(request, response); |
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| 122 | } |
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| 123 | |
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| 124 | /** |
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| 125 | * Returns a short description of the servlet. |
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| 126 | * |
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| 127 | * @return a String containing servlet description |
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| 128 | */ |
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| 129 | @Override |
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| 130 | public String getServletInfo() { |
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| 131 | return "Short description"; |
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| 132 | }// </editor-fold> |
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| 133 | |
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| 134 | } |
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