/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/rwiki/trunk/rwiki-impl/impl/src/java/uk/ac/cam/caret/sakai/rwiki/component/message/dao/impl/PagePresenceDaoImpl.java $
* $Id: PagePresenceDaoImpl.java 9108 2006-05-08 14:30:57Z ian@caret.cam.ac.uk $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006 The Sakai Foundation.
*
* Licensed under the Educational Community License, Version 1.0 (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/ecl1.php
*
* 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 uk.ac.cam.caret.sakai.rwiki.component.message.dao.impl;
import java.util.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.criterion.Expression;
import org.hibernate.criterion.Order;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import uk.ac.cam.caret.sakai.rwiki.message.model.PagePresenceImpl;
import uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao;
import uk.ac.cam.caret.sakai.rwiki.service.message.api.model.PagePresence;
import uk.ac.cam.caret.sakai.rwiki.utils.TimeLogger;
/**
* @author ieb
*/
public class PagePresenceDaoImpl extends HibernateDaoSupport implements
PagePresenceDao
{
private static Log log = LogFactory.getLog(PagePresenceDaoImpl.class);
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#createPagePresence(java.lang.String,
* java.lang.String, java.lang.String, java.lang.String)
*/
public PagePresence createPagePresence(String pageName, String pageSpace,
String sessionid, String user)
{
PagePresence pp = new PagePresenceImpl();
pp.setLastseen(new Date());
pp.setPagename(pageName);
pp.setPagespace(pageSpace);
pp.setSessionid(sessionid);
pp.setUser(user);
return pp;
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#findBySpace(java.lang.String)
*/
public List findBySpace(final String pageSpace)
{
long start = System.currentTimeMillis();
try
{
// there is no point in sorting by version, since there is only one
// version in
// this table.
// also using like is much slower than eq
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
throws HibernateException
{
return session.createCriteria(PagePresence.class).add(
Expression.eq("pagespace", pageSpace)).addOrder(
Order.desc("lastseen")).list();
}
};
List l = (List) getHibernateTemplate().execute(callback);
log.info("Found " + l.size() + " in " + pageSpace);
return l;
}
finally
{
long finish = System.currentTimeMillis();
TimeLogger.printTimer("PagePresenceDaoImpl.findBySpace: "
+ pageSpace, start, finish);
}
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#findByPage(java.lang.String,
* java.lang.String)
*/
public List findByPage(final String pageSpace, final String pageName)
{
long start = System.currentTimeMillis();
try
{
// there is no point in sorting by version, since there is only one
// version in
// this table.
// also using like is much slower than eq
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
throws HibernateException
{
return session.createCriteria(PagePresence.class).add(
Expression.eq("pagename", pageName)).add(
Expression.eq("pagespace", pageSpace)).addOrder(
Order.desc("lastseen")).list();
}
};
return (List) getHibernateTemplate().execute(callback);
}
finally
{
long finish = System.currentTimeMillis();
TimeLogger.printTimer("PagePresenceDaoImpl.findByPage: "
+ pageSpace + " :" + pageName, start, finish);
}
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#findByUser(java.lang.String)
*/
public List findByUser(final String user)
{
long start = System.currentTimeMillis();
try
{
// there is no point in sorting by version, since there is only one
// version in
// this table.
// also using like is much slower than eq
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
throws HibernateException
{
return session.createCriteria(PagePresence.class).add(
Expression.eq("user", user)).list();
}
};
return (List) getHibernateTemplate().execute(callback);
}
finally
{
long finish = System.currentTimeMillis();
TimeLogger.printTimer("PagePresenceDaoImpl.findByUser: " + user,
start, finish);
}
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#findBySession(java.lang.String)
*/
public PagePresence findBySession(final String sessionid)
{
long start = System.currentTimeMillis();
try
{
// there is no point in sorting by version, since there is only one
// version in
// this table.
// also using like is much slower than eq
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
throws HibernateException
{
return session.createCriteria(PagePresence.class).add(
Expression.eq("sessionid", sessionid)).list();
}
};
List found = (List) getHibernateTemplate().execute(callback);
if (found.size() == 0)
{
if (log.isDebugEnabled())
{
log.debug("Found " + found.size() + " objects with name "
+ sessionid);
}
return null;
}
if (log.isDebugEnabled())
{
log.debug("Found " + found.size() + " objects with name "
+ sessionid + " returning most recent one.");
}
return (PagePresence) found.get(0);
}
finally
{
long finish = System.currentTimeMillis();
TimeLogger.printTimer("PagePresenceDaoImpl.findBySessionId: "
+ sessionid, start, finish);
}
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#update(java.lang.Object)
*/
public void update(Object o)
{
getHibernateTemplate().saveOrUpdate(o);
}
/*
* (non-Javadoc)
*
* @see uk.ac.cam.caret.sakai.rwiki.service.message.api.dao.PagePresenceDao#findBySpaceOnly(java.lang.String,
* java.lang.String)
*/
public List findBySpaceOnly(final String pageSpace, final String pageName)
{
long start = System.currentTimeMillis();
try
{
// there is no point in sorting by version, since there is only one
// version in
// this table.
// also using like is much slower than eq
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
throws HibernateException
{
return session.createCriteria(PagePresence.class).add(
Expression.eq("pagespace", pageSpace))
.add(
Expression.not(Expression.eq("pagename",
pageName))).addOrder(
Order.desc("lastseen")).list();
}
};
List l = (List) getHibernateTemplate().execute(callback);
log.info("Found " + l.size() + " in " + pageSpace + " : "
+ pageName);
return l;
}
finally
{
long finish = System.currentTimeMillis();
TimeLogger.printTimer("PagePresenceDaoImpl.findBySpaceOnly: "
+ pageSpace + " :" + pageName, start, finish);
}
}
}