mypackage.CollInformation.java Source code

Introduction

Here is the source code for mypackage.CollInformation.java

Source

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package mypackage;

import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.json.JSONArray;
import org.json.JSONObject;

/**
 *
 * @author Kapil Gehlot
 */
public class CollInformation extends HttpServlet {

    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. */
            try {
                String getDBName = request.getParameter("dbname");
                String getCollName = request.getParameter("collname");
                MongoClient mongoClient = new MongoClient("localhost", 27017);
                DB mongoDatabase = mongoClient.getDB(getDBName);
                DBCollection coll = mongoDatabase.getCollection(getCollName);
                long totalDoc = coll.count();
                JSONObject jSONObject = new JSONObject();
                JSONArray jSONArray = new JSONArray();

                DBCursor cursor = coll.find();
                int i = 0;
                while (cursor.hasNext()) {
                    jSONArray.put(cursor.next());
                    i++;
                }
                jSONObject.put("db", jSONArray);
                jSONObject.put("counter", i);
                jSONObject.put("totalDoc", totalDoc);
                out.println(jSONObject);

            } catch (Exception e) {

            }
        }
    }

    // <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 {
        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 {
        processRequest(request, response);
    }

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

}