root/SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/www/EPServlet.java @ 204

リビジョン 204, 4.2 KB (コミッタ: atsuko, 10 年 前)

他サイトから利用することを想定してHTTPヘッダ追加
行番号 
1/*
2 * To change this license header, choose License Headers in Project Properties.
3 * To change this template file, choose Tools | Templates
4 * and open the template in the editor.
5 */
6
7package org.biohackathon.SPARQLBuilder.www;
8
9import java.io.IOException;
10import java.io.PrintWriter;
11import javax.servlet.ServletException;
12import javax.servlet.annotation.WebServlet;
13import javax.servlet.http.HttpServlet;
14import javax.servlet.http.HttpServletRequest;
15import javax.servlet.http.HttpServletResponse;
16import javax.servlet.http.HttpSession;
17import org.biohackathon.SPARQLBuilder.OWL.*;
18import javax.json.*;
19
20//import java.io.*;
21
22/**
23 *
24 * @author atsuko
25 */
26@WebServlet(name = "EPServlet", urlPatterns = {"/eplist"})
27public class EPServlet extends HttpServlet {
28
29    //private RDFSchemaAnalyzerFactory factory = null;
30    private QueryPathGenerator qpg = null;
31    private static final String FILENAME = "cdata/";
32   
33    /**
34     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
35     * methods.
36     *
37     * @param request servlet request
38     * @param response servlet response
39     * @throws ServletException if a servlet-specific error occurs
40     * @throws IOException if an I/O error occurs
41     */
42    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
43            throws ServletException, IOException {
44        response.setContentType("text/html;charset=UTF-8");
45        try (PrintWriter out = response.getWriter()) {
46            /* TODO output your page here. You may use following sample code. */
47            out.println("<!DOCTYPE html>");
48            out.println("<html>");
49            out.println("<head>");
50            out.println("<title>Servlet EPServlet</title>");           
51            out.println("</head>");
52            out.println("<body>");
53            out.println("<h1>Servlet EPServlet at " + request.getContextPath() + "</h1>");
54            out.println("</body>");
55            out.println("</html>");
56        }
57    }
58
59    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
60    /**
61     * Handles the HTTP <code>GET</code> method.
62     *
63     * @param request servlet request
64     * @param response servlet response
65     * @throws ServletException if a servlet-specific error occurs
66     * @throws IOException if an I/O error occurs
67     */
68    @Override
69    protected void doGet(HttpServletRequest request, HttpServletResponse response)
70            throws ServletException, IOException {
71        //processRequest(request, response);
72       
73        response.setContentType("application/json;charset=UTF-8");
74        response.setHeader("Access-Control-Allow-Origin", "*");
75        response.setHeader("Access-Control-Allow-Methods", "GET");
76        response.setHeader("Access-Control-Allow-Headers", request.getHeader("Access-Control-Request-Headers"));
77        response.setHeader("Access-Control-Max-Age", "-1");       
78        PrintWriter out = response.getWriter();
79        if ( qpg == null ){
80            qpg = new QueryPathGenerator();
81        }
82        String[] elist = qpg.getFactory().getEndpointURIList();
83        JsonBuilderFactory jbfactory = Json.createBuilderFactory(null);
84        JsonArrayBuilder jab = jbfactory.createArrayBuilder();
85        for (int i = 0; i < elist.length; i++ ){
86            jab.add(elist[i]);
87        }
88        JsonArray ja = jab.build();
89        out.print(ja);
90        HttpSession session = request.getSession();
91        session.setAttribute("qpg", qpg);
92    }
93
94    /**
95     * Handles the HTTP <code>POST</code> method.
96     *
97     * @param request servlet request
98     * @param response servlet response
99     * @throws ServletException if a servlet-specific error occurs
100     * @throws IOException if an I/O error occurs
101     */
102    @Override
103    protected void doPost(HttpServletRequest request, HttpServletResponse response)
104            throws ServletException, IOException {
105        processRequest(request, response);
106    }
107
108    /**
109     * Returns a short description of the servlet.
110     *
111     * @return a String containing servlet description
112     */
113    @Override
114    public String getServletInfo() {
115        return "Short description";
116    }// </editor-fold>
117
118}
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