package org.itnaf.service;
import java.util.Map;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.exception.VelocityException;
import org.springframework.core.io.ClassPathResource;
import org.springframework.mail.MailException;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.ui.velocity.VelocityEngineUtils;
/**
* Class for sending e-mail messages based on Velocity templates
* or with attachments.
*
* <p><a href="MailEngine.java.html"><i>View Source</i></a></p>
*
* @author Matt Raible
*/
public class MailEngine {
protected static final Log log = LogFactory.getLog(MailEngine.class);
private MailSender mailSender;
private VelocityEngine velocityEngine;
public void setMailSender(MailSender mailSender) {
this.mailSender = mailSender;
}
public void setVelocityEngine(VelocityEngine velocityEngine) {
this.velocityEngine = velocityEngine;
}
/**
* Send a simple message based on a Velocity template.
* @param msg
* @param templateName
* @param model
*/
public void sendMessage(SimpleMailMessage msg, String templateName,
Map model) {
String result = null;
try {
result =
VelocityEngineUtils.mergeTemplateIntoString(velocityEngine,
templateName, model);
} catch (VelocityException e) {
e.printStackTrace();
}
msg.setText(result);
send(msg);
}
/**
* Send a simple message with pre-populated values.
* @param msg
*/
public void send(SimpleMailMessage msg) {
try {
mailSender.send(msg);
} catch (MailException ex) {
//log it and go on
log.error(ex.getMessage());
}
}
/**
* Convenience method for sending messages with attachments.
*
* @param emailAddresses
* @param resource
* @param bodyText
* @param subject
* @param attachmentName
* @throws MessagingException
* @author Ben Gill
*/
public void sendMessage(String[] emailAddresses,
ClassPathResource resource, String bodyText,
String subject, String attachmentName)
throws MessagingException {
MimeMessage message =
((JavaMailSenderImpl) mailSender).createMimeMessage();
// use the true flag to indicate you need a multipart message
MimeMessageHelper helper = new MimeMessageHelper(message, true);
helper.setTo(emailAddresses);
helper.setText(bodyText);
helper.setSubject(subject);
helper.addAttachment(attachmentName, resource);
((JavaMailSenderImpl) mailSender).send(message);
}
}