com.adssets.servlet.MarketServlet.java Source code

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Here is the source code for com.adssets.servlet.MarketServlet.java

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/*
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 * and open the template in the editor.
 */
package com.adssets.servlet;

import com.adssets.ejb.DataAccessLocal;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author adssets
 */
@WebServlet(name = "Market", urlPatterns = { "/Market" })
public class MarketServlet extends HttpServlet {

    @EJB
    private DataAccessLocal data;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * 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("application/json");
        try (PrintWriter out = response.getWriter()) {
            String marketId = request.getParameter("marketId");
            if (marketId == null) {
                out.println(data.getMarkets());
            } else {
                out.println(data.getMarketByID(marketId));
            }
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> 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 {
        HttpServletResponse http = (HttpServletResponse) response;
        response.setHeader("Access-Control-Allow-Origin", "*");
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> 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 {
        response.setHeader("Access-Control-Allow-Origin", "*");
        ;
        try (PrintWriter out = response.getWriter()) {
            StringBuilder sb = new StringBuilder();
            String line = null;
            try {
                BufferedReader reader = request.getReader();
                while ((line = reader.readLine()) != null)
                    sb.append(line);
            } catch (Exception e) {
                System.out.println(
                        "com.adssets.servlet.MarketServlet.processRequestPost()" + " Could not read POST body");
            }

            JsonObject jsonObject = (new JsonParser()).parse(sb.toString()).getAsJsonObject();

            if (jsonObject.has("name") && jsonObject.has("description")) {
                String res = data.createMarket(jsonObject.toString());
                out.println(res);
            } else {
                System.out.println(
                        "com.adssets.servlet.MarketServlet.processRequestPost()" + " Missing fields in body");

            }

        }

    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}