HibernateCalendarSetDao.java

/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.portlet.calendar.dao;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.annotation.Resource;
import javax.portlet.PortletRequest;
import javax.portlet.PortletSession;
import org.jasig.portlet.calendar.CalendarSet;
import org.jasig.portlet.calendar.PredefinedCalendarConfiguration;
import org.jasig.portlet.calendar.UserDefinedCalendarConfiguration;
import org.jasig.portlet.calendar.service.SessionSetupInitializationService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Required;

/**
 * @author Jen Bourey, jbourey@unicon.net
 * @version $Revision$
 */
public class HibernateCalendarSetDao implements ICalendarSetDao {

  private final Logger log = LoggerFactory.getLogger(this.getClass());

  private CalendarStore calendarStore;

  @Required
  @Resource(name = "calendarStore")
  public void setCalendarStore(CalendarStore calendarStore) {
    this.calendarStore = calendarStore;
  }

  /*
   * (non-Javadoc)
   * @see org.jasig.portlet.calendar.dao.ICalendarSetDao#getCalendarSet(javax.portlet.PortletRequest)
   */
  public CalendarSet<?> getCalendarSet(PortletRequest request) {

    final Set<UserDefinedCalendarConfiguration> calendars =
        new HashSet<UserDefinedCalendarConfiguration>();
    final CalendarSet<UserDefinedCalendarConfiguration> set =
        new CalendarSet<UserDefinedCalendarConfiguration>(calendars);

    final String username = getUsername(request);
    if (username != null) {

      // retrieve a list of calendar configurations for this user
      final List<UserDefinedCalendarConfiguration> cals =
          calendarStore.getCalendarConfigurations(username);

      calendars.addAll(cals);

    } else {
      log.warn("username is null -- returning empty calendar set");
    }
    return set;
  }

  @Override
  public List<PredefinedCalendarConfiguration> getAvailablePredefinedCalendarConfigurations(
      PortletRequest request) {

    final String username = getUsername(request);

    if (username != null) {
      // For this ICalendarSetDao, the list is the unfiltered collection from CalendarStore...
      return calendarStore.getPredefinedCalendarConfigurations(username, false);
    } else {
      log.warn("username is null -- returning empty calendar configuration list");
      return new ArrayList<PredefinedCalendarConfiguration>();
    }
  }

  /*
   * Implementation
   */

  private String getUsername(PortletRequest request) {
    // Get the username from the portlet session.  This implementation
    // assumes that the session initialization service is run at login time
    final PortletSession session = request.getPortletSession();
    final String rslt =
        (String) session.getAttribute(SessionSetupInitializationService.USERNAME_KEY);
    if (rslt == null) {
      log.warn("Username not found in session");
    }
    return rslt;
  }
}