/*
* Copyright 2010 Last.fm
*
* 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 fm.last.citrine.web;
import java.text.ParseException;
import org.apache.commons.lang.StringUtils;
import org.quartz.CronExpression;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import fm.last.citrine.model.Task;
/**
* Validator for Task DTO.
*/
public class TaskDTOValidator implements Validator {
@Override
public boolean supports(Class someClass) {
return TaskDTO.class.equals(someClass);
}
@Override
public void validate(Object object, Errors errors) {
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "task.groupName", "group.empty");
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "task.name", "name.empty");
Task task = ((TaskDTO) object).getTask();
if (!StringUtils.isEmpty(task.getTimerSchedule())) {
// if there is a timer schedule, check it is valid for quartz cron trigger
try {
new CronExpression(task.getTimerSchedule());
} catch (ParseException e) {
errors.rejectValue("task.timerSchedule", "timer.schedule.invalid", e.getMessage());
}
}
if (task.getGroupName() != null && Constants.GROUP_NAME_ALL.equals(task.getGroupName().trim())) {
errors.rejectValue("task.groupName", "group.illegal", Constants.GROUP_NAME_ALL + " not allowed as group name");
}
}
}