/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.identity.hibernate;
import java.util.*;
import org.apache.commons.logging.*;
import org.hibernate.*;
import org.jbpm.db.JbpmSession;
import org.jbpm.identity.*;
import org.jbpm.identity.assignment.*;
import org.jbpm.identity.security.*;
public class IdentitySession implements IdentityService, ExpressionSession {
Session session = null;
private Transaction transaction;
public IdentitySession(Session session) {
this.session = session;
}
public IdentitySession() {
JbpmSession currentJbpmSession = JbpmSession.getCurrentJbpmSession();
if ( (currentJbpmSession==null)
|| (currentJbpmSession.getSession()==null)
|| (! currentJbpmSession.getSession().isOpen())
) {
throw new RuntimeException("no active JbpmSession to create an identity session");
}
session = currentJbpmSession.getSession();
}
// IdentityService methods //////////////////////////////////////////////////
public Object verify(String userName, String pwd) {
Object userId = null;
Query query = session.createQuery(
"select user.id " +
"from org.jbpm.identity.User as user " +
"where user.name = :userName " +
" and user.password = :password");
query.setString("userName", userName);
query.setString("password", pwd);
userId = (Long) query.uniqueResult();
return userId;
}
public User getUserById(Object userId) {
return (User) session.load(User.class, (Long) userId);
}
// transaction convenience methods //////////////////////////////////////////
public Session getSession() {
return session;
}
public Transaction getTransaction() {
return transaction;
}
public void beginTransaction() {
try {
transaction = session.beginTransaction();
} catch (HibernateException e) {
log.error( e );
throw new RuntimeException( "couldn't begin a transaction", e );
}
}
public void commitTransaction() {
if ( transaction == null ) {
throw new RuntimeException("can't commit : no transaction started" );
}
try {
session.flush();
transaction.commit();
} catch (HibernateException e) {
log.error( e );
throw new RuntimeException( "couldn't commit transaction", e );
}
transaction = null;
}
public void rollbackTransaction() {
if ( transaction == null ) {
throw new RuntimeException("can't rollback : no transaction started" );
}
try {
transaction.rollback();
} catch (HibernateException e) {
log.error( e );
throw new RuntimeException( "couldn't rollback transaction", e );
}
transaction = null;
}
public void commitTransactionAndClose() {
commitTransaction();
close();
}
public void rollbackTransactionAndClose() {
rollbackTransaction();
close();
}
public void close() {
try {
session.close();
} catch (HibernateException e) {
log.error( e );
throw new RuntimeException( "couldn't close the hibernate connection", e );
}
}
// identity methods /////////////////////////////////////////////////////////
public void saveUser(User user) {
session.save(user);
}
public void saveGroup(Group group) {
session.save(group);
}
public void saveEntity(Entity entity) {
session.save(entity);
}
public User loadUser(long userId) {
return (User) session.load(User.class, new Long(userId));
}
public Group loadGroup(long groupId) {
return (Group) session.load(Group.class, new Long(groupId));
}
public User getUserByName(String userName) {
User user = null;
Query query = session.createQuery(
"select u " +
"from org.jbpm.identity.User as u " +
"where u.name = :userName"
);
query.setString("userName", userName);
List users = query.list();
if ( (users!=null)
&& (users.size()>0) ) {
user = (User) users.get(0);
}
return user;
}
public Group getGroupByName(String groupName) {
Group group = null;
Query query = session.createQuery(
"select g " +
"from org.jbpm.identity.Group as g " +
"where g.name = :groupName"
);
query.setString("groupName", groupName);
List groups = query.list();
if ( (groups!=null)
&& (groups.size()>0) ) {
group = (Group) groups.get(0);
}
return group;
}
public List getUsers() {
Query query = session.createQuery(
"select u " +
"from org.jbpm.identity.User as u"
);
return query.list();
}
public List getGroupNamesByUserAndGroupType(String userName, String groupType) {
Query query = session.createQuery(
"select membership.group.name " +
"from org.jbpm.identity.Membership as membership " +
"where membership.user.name = :userName " +
" and membership.group.type = :groupType"
);
query.setString("userName", userName);
query.setString("groupType", groupType);
return query.list();
}
public User getUserByGroupAndRole(String groupName, String role) {
User user = null;
Query query = session.createQuery(
"select m.user " +
"from org.jbpm.identity.Membership as m " +
"where m.group.name = :groupName " +
" and m.role = :role"
);
query.setString("groupName", groupName);
query.setString("role", role);
user = (User) query.uniqueResult();
return user;
}
private static final Log log = LogFactory.getLog(IdentitySession.class);
}