/*
* Copyright 2007-2013 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 org.springbyexample.email;
import java.util.Map;
import javax.mail.internet.MimeMessage;
import org.apache.velocity.app.VelocityEngine;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.mail.javamail.MimeMessagePreparator;
import org.springframework.stereotype.Component;
import org.springframework.ui.velocity.VelocityEngineUtils;
/**
* Sends an e-mail message.
*
* @author David Winterfeldt
*/
@Component
public class VelocityEmailSender implements Sender {
private static final Logger logger = LoggerFactory.getLogger(VelocityEmailSender.class);
private final VelocityEngine velocityEngine;
private final JavaMailSender mailSender;
/**
* Constructor
*/
@Autowired
public VelocityEmailSender(VelocityEngine velocityEngine,
JavaMailSender mailSender) {
this.velocityEngine = velocityEngine;
this.mailSender = mailSender;
}
/**
* Sends e-mail using Velocity template for the body and
* the properties passed in as Velocity variables.
*
* @param msg The e-mail message to be sent, except for the body.
* @param hTemplateVariables Variables to use when processing the template.
*/
@Override
public void send(final SimpleMailMessage msg,
final Map<String, Object> hTemplateVariables) {
MimeMessagePreparator preparator = new MimeMessagePreparator() {
@Override
public void prepare(MimeMessage mimeMessage) throws Exception {
MimeMessageHelper message = new MimeMessageHelper(mimeMessage);
message.setTo(msg.getTo());
message.setFrom(msg.getFrom());
message.setSubject(msg.getSubject());
String body = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "/emailBody.vm", hTemplateVariables);
logger.info("body={}", body);
message.setText(body, true);
}
};
mailSender.send(preparator);
logger.info("Sent e-mail to '{}'.", msg.getTo());
}
}