package org.goobi.production.flow.statistics.hibernate;
/**
* This file is part of the Goobi Application - a Workflow tool for the support of mass digitization.
*
* Visit the websites for more information.
* - http://www.goobi.org
* - http://launchpad.net/goobi-production
* - http://gdz.sub.uni-goettingen.de
* - http://www.intranda.com
* - http://digiverso.com
*
* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions
* of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to
* link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and
* conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this
* library, you may extend this exception to your version of the library, but you are not obliged to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Observable;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.criterion.CriteriaSpecification;
import org.hibernate.criterion.Restrictions;
import de.sub.goobi.beans.Prozess;
import de.sub.goobi.helper.Helper;
import de.sub.goobi.helper.PaginatingCriteria;
public class UserProjectFilter implements IEvaluableFilter, Cloneable {
/**
*
*/
private static final long serialVersionUID = 441692997066826360L;
private Integer projectID;
// private Criteria myCriteria = null;
private WeakReference<Criteria> myCriteria = null;
private List<Integer> myIds = null;
private Dispatcher myObservable;
private String step = "";
public UserProjectFilter(Integer projectID) {
this.projectID = projectID;
}
@Override
public Criteria getCriteria() {
if (myCriteria == null || myCriteria.get() == null) {
if (myIds == null) {
if (projectID != null) {
myCriteria = new WeakReference<Criteria>(createCriteriaFromProjectID());
}
} else {
myCriteria = new WeakReference<Criteria>(createCriteriaFromIDList());
}
}
return myCriteria.get();
}
private Criteria createCriteriaFromProjectID() {
Session session = Helper.getHibernateSession();
PaginatingCriteria crit = new PaginatingCriteria(Prozess.class, session);
crit.setResultTransformer(CriteriaSpecification.DISTINCT_ROOT_ENTITY);
crit.createCriteria("projekt", "proj");
crit.add(Restrictions.eq("proj.id", projectID));
return crit;
}
/**
* filter processes by id
****************************************************************************/
private PaginatingCriteria createCriteriaFromIDList() {
Session session = Helper.getHibernateSession();
PaginatingCriteria crit = new PaginatingCriteria(Prozess.class, session);
crit.add(Restrictions.in("id", myIds));
return crit;
}
@SuppressWarnings("unchecked")
private void createIDListFromCriteria(Criteria crit) {
myIds = new ArrayList<Integer>();
for (Iterator<Object> it = crit.setFirstResult(0).setMaxResults(Integer.MAX_VALUE).list().iterator(); it.hasNext();) {
Prozess p = (Prozess) it.next();
myIds.add(p.getId());
myCriteria = null;
}
}
@Override
public List<Integer> getIDList() {
createIDListFromCriteria(getCriteria());
return myIds;
}
@Override
public String getName() {
throw new UnsupportedOperationException("The class " + this.getClass().getName() + " does not implement getName() ");
}
/*
* (non-Javadoc)
*
* @see
* org.goobi.production.flow.statistics.hibernate.IEvaluableFilter#getObservable
* ()
*/
@Override
public Observable getObservable() {
if (myObservable == null) {
myObservable = new Dispatcher();
}
return myObservable;
}
@Override
public void setFilter(String filter) {
step = filter;
}
@Override
public void setName(String name) {
throw new UnsupportedOperationException("The class " + this.getClass().getName() + " does not implement setName() ");
}
@Override
public void setSQL(String sqlString) {
// TODO Auto-generated method stub
}
@Override
public Integer stepDone() {
throw new UnsupportedOperationException("The class " + this.getClass().getName() + " does not implement stepDone() ");
}
@Override
public List<Object> getSourceData() {
// TODO Auto-generated method stub
return null;
}
@Override
public IEvaluableFilter clone() {
throw new UnsupportedOperationException("The class " + this.getClass().getName() + " does not implement clone() ");
}
@Override
public String stepDoneName() {
return step;
}
/*
* this internal class is extending the Observable Class and dispatches a
* message to the Observers
*/
private static class Dispatcher extends Observable {
@SuppressWarnings("unused")
private void setMessage(String message) {
super.setChanged();
super.notifyObservers(message);
}
}
}