com.ibm.bluemix.samples.HomeServlet.java Source code

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Here is the source code for com.ibm.bluemix.samples.HomeServlet.java

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package com.ibm.bluemix.samples;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.json.simple.JSONObject;

/**
 * Receives the informations to be displayed in the home.jsp from the database
 */
@SuppressWarnings("serial")
public class HomeServlet extends HttpServlet {

    /**
     * object of the PostgreSQLClient class to access and alter the database
     */
    private PostgreSQLClient db = new PostgreSQLClient();

    /**
     * Returns information about the files stored in the database to the home.jsp
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        System.out.println("Home Servlet");

        try {
            List<JSONObject> files = db.getResults();
            request.setAttribute("files", files);
        } catch (Exception e) {
            request.setAttribute("msg", e.getMessage());
            request.setAttribute("files", new ArrayList<JSONObject>());
            e.printStackTrace(System.err);
        }

        response.setContentType("text/html");
        response.setStatus(200);
        request.getRequestDispatcher("/home.jsp").forward(request, response);
    }

}