org.jasig.schedassist.impl.events.ReminderServiceApplicationListener.java Source code

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Here is the source code for org.jasig.schedassist.impl.events.ReminderServiceApplicationListener.java

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/**
 * Licensed to Jasig under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Jasig licenses this file to you 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.jasig.schedassist.impl.events;

import java.util.Date;

import org.apache.commons.lang.time.DateUtils;
import org.jasig.schedassist.impl.reminder.IReminder;
import org.jasig.schedassist.impl.reminder.ReminderService;
import org.jasig.schedassist.model.IScheduleOwner;
import org.jasig.schedassist.model.Reminders;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;

/**
 * {@link ApplicationListener} for {@link AbstractAppointmentEvent}s that
 * integrates with the {@link ReminderService}.
 * 
 * @author Nicholas Blair
 * @version $Id: ReminderServiceApplicationListener.java 3101 2011-02-28 18:42:05Z npblair $
 */
@Component
public class ReminderServiceApplicationListener implements ApplicationListener<AbstractAppointmentEvent> {

    private ReminderService reminderService;

    /**
     * @param reminderService the reminderService to set
     */
    @Autowired
    public void setReminderService(ReminderService reminderService) {
        this.reminderService = reminderService;
    }

    /* (non-Javadoc)
     * @see org.springframework.context.ApplicationListener#onApplicationEvent(org.springframework.context.ApplicationEvent)
     */
    @Async
    @Override
    public void onApplicationEvent(AbstractAppointmentEvent event) {
        final IScheduleOwner owner = event.getOwner();
        final Reminders reminderPreference = owner.getRemindersPreference();
        if (reminderPreference.isEnabled()) {
            if (event instanceof AppointmentCreatedEvent || event instanceof AppointmentJoinedEvent) {
                final Date sendTime = DateUtils.addHours(event.getBlock().getStartTime(),
                        -reminderPreference.getHours());
                if (sendTime.after(new Date())) {
                    // only create the reminder if and only if the "sendTime" is in the future
                    this.reminderService.createEventReminder(event.getOwner(),
                            event.getVisitor().getCalendarAccount(), event.getBlock(), event.getEvent(), sendTime);
                }
            } else if (event instanceof AppointmentCancelledEvent || event instanceof AppointmentLeftEvent) {
                final IReminder reminder = this.reminderService.getReminder(owner,
                        event.getVisitor().getCalendarAccount(), event.getBlock());
                if (reminder != null) {
                    this.reminderService.deleteEventReminder(reminder);
                }
            }
        }
    }

}