com.bia.monitor.service.MonitorService.java Source code

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Here is the source code for com.bia.monitor.service.MonitorService.java

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/*
 * Copyright 2002-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.bia.monitor.service;

import com.bia.monitor.dao.JobRepository;
import com.bia.monitor.data.Job;
import java.util.Date;
import org.apache.commons.validator.routines.EmailValidator;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * Main service class for url CRUD
 * 
 * @author Intesar Mohammed
 */
@Component
public class MonitorService {

    static final String HTTP = "http://";
    static final String HTTPS = "https://";

    protected static final Logger logger = Logger.getLogger(MonitorService.class);

    private JobRepository jobRepository;
    private EmailService emailService;

    // private static final MonitorService instance = new MonitorService();
    @Autowired
    public MonitorService(JobRepository jobRepository, EmailService emailService) {
        this.jobRepository = jobRepository;
        this.emailService = emailService;
        logger.info("instantiated!");
    }

    /**
     * 
     * @param url
     * @param email
     * @return
     */
    public String add(String url, String email) {

        if ((!isValidEmail(email)) || (url == null || url.trim().length() <= 4)) {
            return "Invalid data!";
        }

        String url_ = url.toLowerCase();
        if (!url_.startsWith(HTTP) && !url_.startsWith(HTTPS)) {
            url = HTTP + url;
        }

        String id = monitor(url, email);

        logger.info(url + ", " + email + ", " + id + " is added to the queue!");

        return id;
    }

    /**
     * 
     * @param id
     * @return
     */
    public boolean remove(String id, String email) {

        Job job = jobRepository.findOne(id);

        if (job.getEmail().size() > 1) {
            job.getEmail().remove(email);
            jobRepository.save(job);
        } else {
            jobRepository.delete(job);
            logger.info("id=" + id + ", email=" + email + " is removed!");
        }

        StringBuilder body = new StringBuilder();
        body.append("Your submitted data! <br/>").append("<p>Url : ").append(job.getUrl()).append("<br/>")
                .append("Email : ").append(job.getEmail()).append("<br/><br/>")
                .append("Thanks for using http://www.zytoon.me/monitor/");

        emailService.sendEmail(email, "Your site is no longer monitored!", body.toString());

        return true;
    }

    /**
     * 
     * @param id
     * @return
     */
    public String status(String id) {
        Job j = jobRepository.findOne(id);
        if (j != null) {

            int mins = (int) ((new Date().getTime() / 60000) - (j.getUpSince().getTime() / 60000));

            StringBuilder reply = new StringBuilder();
            reply.append("{url : ").append(j.getUrl()).append(", Status : ").append(j.getStatus())
                    .append(", Since : ").append(mins).append(" minutes}");
            return reply.toString();

        }

        return "No data found, please add your site at http://www.zytoon.me/monitor";
    }

    // public static MonitorService getInstance() {
    // return instance;
    // }
    /**
     * 
     * @param emails
     * @return
     */
    private boolean isValidEmail(String email) {
        if (!EmailValidator.getInstance().isValid(email)) {
            return false;
        }
        return true;
    }

    private String monitor(String url, String email) {

        Job job = null;

        try {
            job = jobRepository.findByUrl(url);
        } catch (RuntimeException re) {
        }

        // add
        if (job != null) {
            job.getEmail().add(email);
            jobRepository.save(job);
        } else {
            job = new Job();
            job.setUrl(url);
            job.getEmail().add(email);
            job.setUpSince(new Date());
            jobRepository.save(job);
        }

        StringBuilder body = new StringBuilder();
        body.append("Your submitted data! <br/>").append("<p>Url : ").append(url).append("<br/>").append("Email : ")
                .append(email).append("<br/><br/>").append("Free Features!").append("<br/>")
                .append("1. Free Site/Web Service Monitor <br/>").append("2. Free Alerts <br/>")
                .append("3. Free weekly reports").append("<br/><br/>").append("More Upcoming Features!")
                .append("<br/>")
                .append("1. Free Social Media coverage on Twitter, G+, FB, Pinterest, Blogger, Reddit for 95+ uptime!")
                .append("<br/><br/>").append("If you like this service please refer to your friends --  ")
                .append("http://www.zytoon.me/monitor/ <br/><br/>").append("Important link ... <br/>")
                .append("<a href=\"http://www.zytoon.me/monitor/rest/monitor/status/").append(job.getId())
                .append("\"> Show me site status </a> <br/>")
                .append(" <a href=\"http://www.zytoon.me/monitor/rest/monitor/delete/").append(job.getId())
                .append("/").append(email).append("\" > Stop monitoring my site! </a> ");

        emailService.sendEmail(email, "Congratulations we are monitoring your site!", body.toString());

        return job.getId();
    }
}