Android Open Source - droidBBpush Send Servlet

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License

The source code is released under:

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Java Source Code

package com.arg3.examples.push;
/*  www.  jav  a2s  . c o  m*/
import com.arg3.examples.push.dao.DeviceDAO;
import com.arg3.examples.push.model.Device;

import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.inject.Inject;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Created by ryan on 2014-09-25.
 */
public class SendServlet extends BaseServlet {

    @Inject
    DeviceDAO deviceDAO;

    @Inject
    BlackberryPushService bbService;

    @Inject
    AndroidPushService droidService;

    @Override
    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        String deviceId = req.getParameter("deviceId");

        try {
            Device device = deviceDAO.find(Integer.valueOf(deviceId));

            if (device == null) {
                addFlashError(req, "Device not found");
                resp.sendRedirect("/push");
                return;
            }
            req.setAttribute("device", device);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        req.getRequestDispatcher("/send_push.ftl").forward(req, resp);

    }

    @Override
    public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        String deviceId = req.getParameter("deviceId");
        String message = req.getParameter("message");

        if (message == null || message.isEmpty()) {
            addFlashError(req, "must provide a message");
            resp.sendRedirect("/send?deviceId=" + deviceId);
            return;
        }

        boolean success;

        if (deviceId == null || deviceId.isEmpty()) {
            success = sendMessageToAll(message);
        } else {
            success = sendMessageToDevice(deviceId, message);
        }

        if (success)
            addFlashMessage(req, "Message sent successfully");
        else
            addFlashError(req, "Unable to send message(s) at this time");

        resp.sendRedirect("/push");
    }

    private boolean sendMessageToAll(String message) throws ServletException {

        List<Device> devices;

        try {
            devices = deviceDAO.findAllDevices();
        } catch (SQLException e) {
            throw new ServletException("Unable to query devices", e);
        }

        List<String> androidTokens = new ArrayList<String>();
        List<String> bbTokens = new ArrayList<String>();

        for (Device device : devices) {
            switch (device.getType()) {
                case Blackberry:
                    bbTokens.add(device.getToken());
                    break;
                case Android:
                    androidTokens.add(device.getToken());
                    break;
            }
        }

        boolean success = true;

        if (androidTokens.size() > 0) {
            success = droidService.sendMessage(androidTokens, message) && success;
        }

        if (bbTokens.size() > 0) {
            success = bbService.sendMessage(bbTokens, message) && success;
        }

        return success;
    }

    private boolean sendMessageToDevice(String deviceId, String message) throws ServletException {

        Device device = null;

        try {
            device = deviceDAO.find(Integer.valueOf(deviceId));
        } catch (SQLException e) {
            e.printStackTrace();
        }

        if (device == null) {
            throw new ServletException("Device " + deviceId + " not found");
        }

        switch (device.getType()) {
            case Blackberry:
                return bbService.sendMessage(device, message);

            case Android:
                return droidService.sendMessage(device, message);

            default:
                throw new ServletException("Unknown device type");
        }
    }
}

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