/*
* #%L
* ACS AEM Commons Bundle
* %%
* Copyright (C) 2013 Adobe
* %%
* 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.
* #L%
*/
package com.adobe.acs.commons.email.impl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.jcr.Session;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.text.StrLookup;
import org.apache.commons.mail.Email;
import org.apache.commons.mail.HtmlEmail;
import org.apache.commons.mail.SimpleEmail;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.adobe.acs.commons.email.EmailService;
import com.adobe.acs.commons.email.EmailServiceConstants;
import com.day.cq.commons.mail.MailTemplate;
import com.day.cq.mailer.MessageGateway;
import com.day.cq.mailer.MessageGatewayService;
@Component(label = "ACS AEM Commons - E-mail Service",
description = "A Generic Email service that sends an email to a given list of recipients.")
@Service
public final class EmailServiceImpl implements EmailService {
private static final Logger log = LoggerFactory.getLogger(EmailServiceImpl.class);
@Reference
private MessageGatewayService messageGatewayService;
@Reference
private ResourceResolverFactory resourceResolverFactory;
@Override
public List<String> sendEmail(final String templatePath, final Map<String, String> emailParams,
final String... recipients) {
List<String> failureList = new ArrayList<String>();
if (recipients == null || recipients.length <= 0) {
throw new IllegalArgumentException("Invalid Recipients");
}
List<InternetAddress> addresses = new ArrayList<InternetAddress>(recipients.length);
for (String recipient : recipients) {
try {
addresses.add(new InternetAddress(recipient));
} catch (AddressException e) {
log.warn("Invalid email address {} passed to sendEmail(). Skipping.", recipient);
}
}
InternetAddress[] iAddressRecipients = addresses.toArray(new InternetAddress[addresses.size()]);
List<InternetAddress> failureInternetAddresses = sendEmail(templatePath, emailParams, iAddressRecipients);
for (InternetAddress address : failureInternetAddresses) {
failureList.add(address.toString());
}
return failureList;
}
@Override
public List<InternetAddress> sendEmail(final String templatePath, final Map<String, String> emailParams,
final InternetAddress... recipients) {
List<InternetAddress> failureList = new ArrayList<InternetAddress>();
if (recipients == null || recipients.length <= 0) {
throw new IllegalArgumentException("Invalid Recipients");
}
if (StringUtils.isBlank(templatePath)) {
throw new IllegalArgumentException("Template path is null or empty");
}
Email email = getEmail(templatePath, emailParams);
if (email == null) {
throw new IllegalArgumentException("Error while creating template");
}
MessageGateway<Email> messageGateway = messageGatewayService.getGateway(email.getClass());
for (InternetAddress address : recipients) {
try {
email.setTo(Collections.singleton(address));
messageGateway.send(email);
} catch (Exception e) {
failureList.add(address);
log.error("Exception sending email to " + address, e);
}
}
return failureList;
}
private Email getEmail(String templatePath, Map<String, String> emailParams) {
ResourceResolver resourceResolver = null;
try {
resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(null);
final MailTemplate mailTemplate = MailTemplate.create(templatePath, resourceResolver.adaptTo(Session.class));
if (mailTemplate == null) {
log.warn("Email template at {} could not be created.", templatePath);
return null;
}
Class<? extends Email> emailClass = templatePath.endsWith(".html") ? HtmlEmail.class : SimpleEmail.class;
final Email email = mailTemplate.getEmail(StrLookup.mapLookup(emailParams), emailClass);
if (emailParams.containsKey(EmailServiceConstants.SENDER_EMAIL_ADDRESS)
&& emailParams.containsKey(EmailServiceConstants.SENDER_NAME)) {
email.setFrom(emailParams.get(EmailServiceConstants.SENDER_EMAIL_ADDRESS),
emailParams.get(EmailServiceConstants.SENDER_NAME));
} else if (emailParams.containsKey(EmailServiceConstants.SENDER_EMAIL_ADDRESS)) {
email.setFrom(emailParams.get(EmailServiceConstants.SENDER_EMAIL_ADDRESS));
}
return email;
} catch (Exception e) {
log.error("Unable to construct email from template " + templatePath, e);
} finally {
if (resourceResolver != null) {
resourceResolver.close();
}
}
return null;
}
}