Subversion Repositories SmartDukaan

package in.shop2020.web;

import java.io.IOException;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.TimeZone;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.json.JSONArray;

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

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

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

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

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

import com.google.appengine.api.datastore.Query.FilterOperator;

public class ShowSocialDataLog extends HttpServlet {

	private static final long serialVersionUID = 300994324656257525L;

	public void doPost(HttpServletRequest req, HttpServletResponse resp) {

		String requestedEventType = req.getParameter("event_type");

        resp.setContentType("application/json");

        DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();

        Query q = new Query("SocialDataLog");

        if (requestedEventType != null)	{

        	q.addFilter("eventType", FilterOperator.EQUAL, requestedEventType);

        }

        PreparedQuery pq = datastore.prepare(q);

        try {

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

        	Map<String, String> event;

        	for (Entity result : pq.asIterable()) {

            	event = new HashMap<String, String>();

            	event.put("event", (String) result.getProperty("eventType"));

            	event.put("user", (String) result.getProperty("eventType"));

            	event.put("time", (String) result.getProperty("logTime"));

            	data.add(event);

            }

            resp.getWriter().println(new JSONArray(data));

        } catch (IOException e) {

            System.out.println("Unable to write at output stream");

        }

    }

    public void doGet(HttpServletRequest req, HttpServletResponse resp) {

        doPost(req, resp);

    }

    public static void main (String [] args) throws ParseException{

    	SimpleDateFormat iSdf = new SimpleDateFormat("yyyyMMdd");

        iSdf.setTimeZone(TimeZone.getTimeZone("IST"));

    	Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("IST"));

    	String dateStr = "20120101";

    	Date date = iSdf.parse(dateStr);

    	System.out.println(date);

    	cal.add(Calendar.DATE, -1);

	    date = iSdf.parse(iSdf.format(cal.getTime()));

	    System.out.println(date);

    }

}