eu.trentorise.smartcampus.permissionprovider.manager.MailSender.java Source code

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Here is the source code for eu.trentorise.smartcampus.permissionprovider.manager.MailSender.java

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/*******************************************************************************
 * Copyright 2015 Fondazione Bruno Kessler
 * 
 *    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 eu.trentorise.smartcampus.permissionprovider.manager;

import java.io.IOException;
import java.util.Map;
import java.util.Properties;

import javax.annotation.PostConstruct;
import javax.mail.internet.MimeMessage;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.Resource;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import eu.trentorise.smartcampus.permissionprovider.common.RegistrationException;

/**
 * @author raman
 *
 */
@Component
public class MailSender {

    private static JavaMailSenderImpl mailSender = null;

    @Value("${mail.username}")
    private String mailUser;
    @Autowired
    @Value("${mail.password}")
    private String mailPwd;
    @Autowired
    @Value("${mail.host}")
    private String mailHost;
    @Autowired
    @Value("${mail.port}")
    private Integer mailPort;
    @Autowired
    @Value("${mail.protocol}")
    private String mailProtocol;

    @Value("classpath:/javamail.properties")
    private Resource mailProps;

    @Autowired
    private TemplateEngine templateEngine;

    public MailSender() throws IOException {
        mailSender = new org.springframework.mail.javamail.JavaMailSenderImpl();

    }

    @PostConstruct
    public void init() throws IOException {
        mailSender.setHost(mailHost);
        mailSender.setPort(mailPort);
        mailSender.setProtocol(mailProtocol);
        mailSender.setPassword(mailPwd);
        mailSender.setUsername(mailUser);

        Properties props = new Properties();
        props.load(mailProps.getInputStream());
        mailSender.setJavaMailProperties(props);

    }

    public void sendEmail(String email, String template, String subject, Map<String, Object> vars)
            throws RegistrationException {

        try {
            final Context ctx = new Context();
            if (vars != null) {
                for (String var : vars.keySet()) {
                    ctx.setVariable(var, vars.get(var));
                }
            }

            final MimeMessage mimeMessage = mailSender.createMimeMessage();
            final MimeMessageHelper message = new MimeMessageHelper(mimeMessage, true, "UTF-8");
            message.setSubject(subject);
            message.setFrom(mailUser);
            message.setTo(email);

            // Create the HTML body using Thymeleaf
            final String htmlContent = this.templateEngine.process(template, ctx);
            message.setText(htmlContent, true);
            // Send mail
            mailSender.send(mimeMessage);
        } catch (Exception e) {
            e.printStackTrace();
            throw new RegistrationException(e);
        }
    }
}