/* Copyright 2014 Danish Maritime Authority.
*
* 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 net.maritimecloud.portal.infrastructure.mail;
import java.util.HashMap;
import java.util.Map;
import org.apache.velocity.app.VelocityEngine;
import org.springframework.ui.velocity.VelocityEngineUtils;
/**
*
* @author Christoffer Børrild
*/
public class VelocityMessageComposer implements MessageComposer {
private static final String TEMPLATE_SIGN_UP_ACTIVATION_MESSAGE = "templates/signUpActivationMessage.vm.html";
private static final String TEMPLATE_RESET_PASSWORD_MESSAGE = "templates/resetPasswordMessage.vm.html";
private static final String TEMPLATE_CONFIRM_CHANGED_EMAIL_ADDRESS_MESSAGE = "templates/confirmChangedEmailAddressMessage.vm.html";
private final VelocityEngine velocityEngine;
private final String spaUrl;
public VelocityMessageComposer(VelocityEngine velocityEngine, String spaUrl) {
assert (velocityEngine != null);
assert (spaUrl != null);
this.velocityEngine = velocityEngine;
this.spaUrl = spaUrl;
}
@Override
public String composeSignUpActivationMessage(String username, String verificationCode) {
assertNotNull(verificationCode);
return compose(createModel(username, verificationCode), TEMPLATE_SIGN_UP_ACTIVATION_MESSAGE);
}
@Override
public String composeResetPasswordMessage(String username, String resetPasswordCode) {
assertNotNull(resetPasswordCode);
return compose(createModel(username, resetPasswordCode), TEMPLATE_RESET_PASSWORD_MESSAGE);
}
@Override
public String composeConfirmChangedEmailAddressMessage(String username, String verificationCode) {
assertNotNull(verificationCode);
return compose(createModel(username, verificationCode), TEMPLATE_CONFIRM_CHANGED_EMAIL_ADDRESS_MESSAGE);
}
private void assertNotNull(Object value) throws IllegalStateException {
if (value == null) {
throw new IllegalStateException("User object is missing activationid or reset key!");
}
}
private String compose(Map model, String templateFilename) {
return VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, templateFilename, "UTF-8", model);
}
private Map createModel(String username, String key) {
Map model = new HashMap();
model.put("username", username);
model.put("baseUrl", spaUrl);
model.put("activationid", key);
return model;
}
}