EmailNotificationHandler.java

/*
Copyright (c) Microsoft Open Technologies, Inc.  All rights reserved.
 
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of this software and associated documentation files (the "Software"), to deal
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 */
package com.microsoftopentechnologies.azchat.web.timertasks;

import java.util.List;
import java.util.Set;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import com.microsoftopentechnologies.azchat.web.common.utils.AzureChatConstants;
import com.microsoftopentechnologies.azchat.web.dao.QueueRequestDAO;
import com.microsoftopentechnologies.azchat.web.dao.QueueRequestDAOImpl;
import com.microsoftopentechnologies.azchat.web.dao.UserDAO;
import com.microsoftopentechnologies.azchat.web.dao.UserDAOImpl;
import com.microsoftopentechnologies.azchat.web.dao.UserPreferenceDAO;
import com.microsoftopentechnologies.azchat.web.dao.UserPreferenceDAOImpl;
import com.microsoftopentechnologies.azchat.web.dao.data.entities.sql.UserEntity;
import com.microsoftopentechnologies.azchat.web.dao.data.entities.sql.UserPreferenceEntity;
import com.microsoftopentechnologies.azchat.web.data.beans.FriendRequestBean;

/**
 * This class handles email notifications for new friend requests by scanning
 * email notification queue periodically.
 * 
 * @author Rupesh_Shirude
 *
 */
@Component
public class EmailNotificationHandler {
	private static final Logger LOGGER = LogManager
			.getLogger(EmailNotificationHandler.class);

	/**
	 * This method is used to send mail about friend request notification. 
	 * TODO : Currently this method does not support email sending it just logs the
	 * message using log4j implementation.If you want to send the email's you
	 * need to hook corresponding code.
	 * 
	 * @throws Exception
	 */
	@Scheduled(fixedRate = 180000)
	private void processFriendRequestNotifications() throws Exception {
		LOGGER.info("[EmailNotificationHandler][sendMailFriendRequestNotifications] start");
		Set<String> friendRequests = null;
		QueueRequestDAO queueRequestDAO = new QueueRequestDAOImpl();
		UserPreferenceDAO userPreferenceDAO = new UserPreferenceDAOImpl();
		try {
			friendRequests = queueRequestDAO
					.getAllMessagesFromQueue(AzureChatConstants.QUEUE_NAME_EMAIL_NOTIFICATION);
		} catch (Exception e1) {
			LOGGER.error("Exception occurred while retrieving email notification information from queue. Exception Messages :  "
					+ e1.getMessage());
		}
		for (String friendReqNotfcnInQue : friendRequests) {
			JSONObject jsonObject = new JSONObject(friendReqNotfcnInQue);
			FriendRequestBean friendRequestBean = convertToObject(jsonObject);
			List<UserPreferenceEntity> userPreferenceEntities = userPreferenceDAO
					.getUserPreferenceEntity(Integer.parseInt(friendRequestBean
							.getFriendID()));
			for (UserPreferenceEntity entity : userPreferenceEntities) {
				if (entity.getPreferenceId() == 1) {
					UserDAO userDAO = new UserDAOImpl();
					UserEntity user = userDAO.getUserDetailsByUserId(Integer
							.parseInt(friendRequestBean.getUserID()));
					// Send mail notification here to friend
					StringBuilder logstat = new StringBuilder(
							"Friend request sent by user id: ");
					logstat.append(user.getUserID());
					logstat.append("(").append(user.getFirstName())
							.append(") TO ");
					logstat.append(friendRequestBean.getFriendName()).append(
							"0.");

					LOGGER.info(logstat);

				}
			}

		}
		LOGGER.info("[EmailNotificationHandler][sendMailFriendRequestNotifications] end");
	}

	/**
	 * This method converts JSON object to the FriendRequestBean object.
	 * 
	 * @param jsonObject
	 * @return
	 */
	private FriendRequestBean convertToObject(JSONObject jsonObject) {
		FriendRequestBean friendRequestBean = new FriendRequestBean();
		try {
			friendRequestBean.setUserID(jsonObject.getString("userID"));
			friendRequestBean.setFriendID(jsonObject.getString("friendID"));
			friendRequestBean.setFriendName(jsonObject.getString("friendName"));
			friendRequestBean.setFriendPhotoUrl(jsonObject
					.getString("friendPhotoUrl"));
			friendRequestBean.setStatus(jsonObject.getString("status"));
		} catch (JSONException e) {
			LOGGER.error("Exception while converting to Object. "
					+ e.getMessage());
		}
		return friendRequestBean;
	}

}