org.sakaiproject.component.common.edu.person.SakaiPersonObserver.java Source code

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Here is the source code for org.sakaiproject.component.common.edu.person.SakaiPersonObserver.java

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/**********************************************************************************
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 * $Id$
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 *
 * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009 The Sakai Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.component.common.edu.person;

import java.util.Observable;
import java.util.Observer;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.api.common.edu.person.SakaiPerson;
import org.sakaiproject.api.common.edu.person.SakaiPersonManager;
import org.sakaiproject.component.api.ServerConfigurationService;
import org.sakaiproject.entity.api.EntityManager;
import org.sakaiproject.entity.api.Reference;
import org.sakaiproject.event.api.Event;
import org.sakaiproject.event.api.EventTrackingService;
import org.sakaiproject.user.api.UserDirectoryService;

/**
 * This observer watches for user.del events and removes the profiles associated with the user
 * @author dhorwitz
 *
 */
public class SakaiPersonObserver implements Observer {

    private static Log log = LogFactory.getLog(SakaiPersonObserver.class);

    private EventTrackingService eventTrackingService;

    public void setEventTrackingService(EventTrackingService eventTrackingService) {
        this.eventTrackingService = eventTrackingService;
    }

    private SakaiPersonManager sakaiPersonManager;

    public void setSakaiPersonManager(SakaiPersonManager sakaiPersonManager) {
        this.sakaiPersonManager = sakaiPersonManager;
    }

    private EntityManager entityManager;

    public void setEntityManager(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    private ServerConfigurationService serverConfigurationService;

    public void setServerConfigurationService(ServerConfigurationService serverConfigurationService) {
        this.serverConfigurationService = serverConfigurationService;
    }

    public void init() {
        log.info("init()");
        if (serverConfigurationService.getBoolean("profile.autoCleanUp", true)) {
            eventTrackingService.addObserver(this);
        }
    }

    public void destroy() {
        log.info("destroy()");
        eventTrackingService.deleteObserver(this);
    }

    public void update(Observable o, Object arg) {
        // arg is Event
        if (!(arg instanceof Event))
            return;
        Event event = (Event) arg;

        // check the event function against the functions we have notifications watching for
        String function = event.getEvent();

        if (UserDirectoryService.SECURE_REMOVE_USER.equals(function)) {
            //then delete this users profiles

            Reference ref = entityManager.newReference(event.getResource());

            // look for group reference. Need to replace it with parent site reference
            String refId = ref.getId();

            ///TODO we need a security advisor

            SakaiPerson sp = sakaiPersonManager.getSakaiPerson(refId, sakaiPersonManager.getUserMutableType());
            if (sp != null) {
                sakaiPersonManager.delete(sp);
            }

            sp = sakaiPersonManager.getSakaiPerson(refId, sakaiPersonManager.getSystemMutableType());
            if (sp != null) {
                sakaiPersonManager.delete(sp);
            }

        }

    }

}