com.gae.ChannelAPIServlet.java Source code

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Here is the source code for com.gae.ChannelAPIServlet.java

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/*!
* gaedirect v3.2.0
* *
* Copyright 2012, Katsuyuki Seino
* Licensed under the GPL Version 2 licenses.
* http://jquery.org/license
*
* Date: Mon May 29 2012
*/
package com.gae;

import com.google.appengine.api.channel.ChannelFailureException;
import com.google.appengine.api.channel.ChannelService;
import com.google.appengine.api.channel.ChannelServiceFactory;
import com.google.appengine.api.channel.ChannelMessage;
import java.io.IOException;
//import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import javax.cache.Cache;
import javax.cache.CacheException;
import javax.cache.CacheFactory;
import javax.cache.CacheManager;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.simple.JSONObject;

@SuppressWarnings("serial")
public class ChannelAPIServlet extends HttpServlet {
    Cache cache;
    private ChannelService channelService;

    @Override
    public void init() throws ServletException {
        try {
            channelService = ChannelServiceFactory.getChannelService();
        } catch (ChannelFailureException e) {
            throw new RuntimeException(e);
        }
        try {
            CacheFactory cacheFactory = CacheManager.getInstance().getCacheFactory();
            cache = cacheFactory.createCache(Collections.emptyMap());
        } catch (CacheException e) {
            throw new RuntimeException(e);
        }
    }

    @Override
    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        resp.setCharacterEncoding("utf-8");
        String clientInfo = req.getParameter("clientId");
        String clientId = "";
        int durationMinutes = 0;
        if (clientInfo.indexOf(":") != -1) {
            clientId = (String) clientInfo.split(":")[0];
            String dminutes1 = (String) clientInfo.split(":")[1];
            durationMinutes = Integer.parseInt(dminutes1.substring(0, dminutes1.length() - 1));
        } else {
            clientId = new String(clientInfo);
            durationMinutes = 0;
        }
        String action = req.getParameter("action");
        if (action.equals("open")) {
            String token = "";
            try {
                if (durationMinutes > 0) {
                    token = channelService.createChannel(clientId, durationMinutes);
                } else {
                    token = channelService.createChannel(clientId);
                }
            } catch (ChannelFailureException e) {
                throw new RuntimeException(e);
            }
            String clientList = "";
            try {
                byte[] clientList_b = (byte[]) cache.get("uidKey");
                clientList = new String(clientList_b, "UTF-8");
            } catch (Exception e) {
            }
            clientList += clientId + ",";
            byte[] clientList_bn = clientList.getBytes("UTF-8");
            cache.put("uidKey", clientList_bn);
            resp.setContentType("text/plain");
            resp.setCharacterEncoding("utf-8");
            resp.getWriter().write(token);
        } else if (action.equals("close")) {
            byte[] clientList_b = (byte[]) cache.get("uidKey");
            String clientList = new String(clientList_b, "UTF-8");
            String[] clientList_a = clientList.split(",");
            String clientList_n = "";
            for (int i = 0; i < clientList_a.length; i++) {
                if (!clientId.equals(clientList_a[i])) {
                    clientList_n += clientList_a[i] + ",";
                }
            }
            byte[] clientList_bn = clientList_n.getBytes("UTF-8");
            cache.put("uidKey", clientList_bn);
            resp.getWriter().write(clientList_n);
        } else if (action.equals("cinit")) {
            String init = clientId + ",";
            byte[] init_b = init.getBytes("UTF-8");
            cache.put("uidKey", init_b);
            resp.getWriter().write("IDclientId?????");
        }
    }

    @Override
    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        String rv = req.getParameter("rv");
        String idb = req.getParameter("id");
        String valb = req.getParameter("val");
        String[] id = idb.split(",");
        String[] val = valb.split("<p>");
        Date date1 = new Date();
        SimpleDateFormat df = new SimpleDateFormat("yyyy''MM''dd''kk''mm''ss''");
        String date = df.format(date1);
        //Add to detastore
        if (!req.getParameter("kind").equals("none")) {
            /*
             *   CRUD ? 
             */
            DirectBeans_textjson dbeans = new DirectBeans_textjson();
            String kind = req.getParameter("kind");
            String key = req.getParameter("clientId");
            dbeans.addDirect(kind, key, id, val, "deli");
        }

        JSONObject jsonobj = new JSONObject();
        for (int i = 0; i < id.length; i++) {
            // Add 2011-12-24  for Text data
            if (id[i].charAt(2) == ':') {
                id[i] = id[i].substring(3);
            }
            // Add 2011-12-24  for Text data
            jsonobj.put(id[i], val[i]);
        }
        jsonobj.put("date", date);
        byte[] clientList_b = (byte[]) cache.get("uidKey");
        String clientList = new String(clientList_b, "UTF-8");
        String[] clientList_a = clientList.split(",");
        try {
            for (int i = 0; i < clientList_a.length; i++) {
                channelService.sendMessage(new ChannelMessage(clientList_a[i], jsonobj.toString()));
            }
        } catch (ChannelFailureException e) {
            throw new RuntimeException(e);
        }
        String clients = "";
        for (int i = 0; i < clientList_a.length; i++) {
            clients += clientList_a[i] + ",";
        }
        clients = clients.substring(0, clients.length() - 1);
        resp.getWriter().write(clients);
    }
}