Subversion Repositories SmartDukaan

package in.shop2020.catalog.dashboard.server;

import in.shop2020.catalog.dashboard.shared.Item;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.util.List;

import javax.servlet.ServletException;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.google.gwt.core.client.GWT;

/**

 * Servlet to generate and then download master sheet  

 * It is invoked from ItemActions.java

 */

@SuppressWarnings("serial")

public class FileDownloadServlet extends HttpServlet {

    @Override

    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        long vendorId = Long.parseLong(req.getParameter("vendorId"));

        String vendorCategory = req.getParameter("vendorCategory"); // This parameter is set in ItemActions.java

        CatalogServiceImpl impl = new CatalogServiceImpl();

        List<Item> itemList = impl.getItemsByVendorCategory(vendorCategory);

        GWT.log("Generating master sheet for " + vendorCategory + "...Item count = " + itemList.size());

        MasterSheetGenerator msg = new MasterSheetGenerator();

        ByteArrayOutputStream baos = msg.generateMasterSheet(vendorId, itemList);

        resp.setContentType("application/vnd.ms-excel");

        resp.setHeader("Content-disposition", "inline; filename=master-sheet-" + vendorCategory + ".xls");

        ServletOutputStream sos;

        try {

            sos = resp.getOutputStream();

            baos.writeTo(sos);

            sos.flush();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}