Subversion Repositories SmartDukaan

package in.shop2020.web;

import java.lang.reflect.Type;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import java.util.Map.Entry;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.google.appengine.api.datastore.DatastoreService;

import com.google.appengine.api.datastore.DatastoreServiceFactory;

import com.google.appengine.api.datastore.Entity;

import com.google.gson.Gson;

import com.google.gson.reflect.TypeToken;

public class UploadCatalogItemsServlet extends HttpServlet {

    private static final long serialVersionUID = -3936645972813167428L;

    public void doPost(HttpServletRequest req, HttpServletResponse resp) {

        String data = req.getParameter("data");

        Gson gson = new Gson();

        List<Map<String, String>> jsonItems = new ArrayList<Map<String, String>>();

        Type listOfMapType = new TypeToken<List<Map<String, String>>>() {}.getType();

        jsonItems = gson.fromJson(data, listOfMapType);

        for (Map<String, String> jsonItem : jsonItems) {

            Entity entity = new Entity("Catalog", Long.parseLong(jsonItem.get("id")));

            for (Entry<String, String> entry : jsonItem.entrySet()) {

                String key = entry.getKey();

                String value = entry.getValue();

                if (key.endsWith("_long")) {

                    entity.setProperty(key.replace("_long", ""), Long.parseLong(value));

                }

                else {

                    entity.setProperty(key, value);

                }

            }

            DatastoreService ds = DatastoreServiceFactory.getDatastoreService();

            ds.put(entity);

        }

    }

    public void doGet(HttpServletRequest req, HttpServletResponse resp) {

        doPost(req, resp);

    }

}