account.PurchaseRateByTag.java Source code

Introduction

Here is the source code for account.PurchaseRateByTag.java

Source

/*
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 */
package account;

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.SQLNonTransientConnectionException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import support.DBHelper;

/**
 *
 * @author bhaumik
 */
public class PurchaseRateByTag extends HttpServlet {

    /**
     * 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 {
        final String tag_no = request.getParameter("tag_no");
        final DBHelper helper = DBHelper.GetDBHelper();
        final Connection dataConnection = helper.getConnMpAdmin();
        final JsonObject jResultObj = new JsonObject();
        if (dataConnection != null) {
            try {
                String sql = "select TAG_NO,SR_NAME,PUR_RATE from tag t left join "
                        + " SERIESMST s on t.sr_cd=s.sr_cd " + " where t.tag_no='" + tag_no + "' and t.is_del=0 ";
                sql += " order by SR_NAME";
                PreparedStatement pstLocal = dataConnection.prepareStatement(sql);
                ResultSet rsLocal = pstLocal.executeQuery();
                JsonArray array = new JsonArray();
                while (rsLocal.next()) {
                    JsonObject object = new JsonObject();
                    object.addProperty("TAG_NO", rsLocal.getString("TAG_NO"));
                    object.addProperty("SR_NAME", rsLocal.getString("SR_NAME"));
                    object.addProperty("PUR_RATE", rsLocal.getDouble("PUR_RATE"));
                    array.add(object);
                }
                jResultObj.addProperty("result", 1);
                jResultObj.addProperty("Cause", "success");
                jResultObj.add("data", array);
            } catch (SQLNonTransientConnectionException ex1) {
                jResultObj.addProperty("result", -1);
                jResultObj.addProperty("Cause", "Server is down");
            } catch (SQLException ex) {
                jResultObj.addProperty("result", -1);
                jResultObj.addProperty("Cause", ex.getMessage());
            }
        }
        response.getWriter().print(jResultObj);
    }

    // <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>

}