/*
* JBoss, a division of Red Hat
* Copyright 2006, Red Hat Middleware, LLC, 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.jboss.identity.idm.impl.api.query;
import org.jboss.identity.idm.api.User;
import org.jboss.identity.idm.api.Group;
import org.jboss.identity.idm.api.IdentitySession;
import org.jboss.identity.idm.api.query.QueryException;
import org.jboss.identity.idm.impl.NotYetImplementedException;
import org.jboss.identity.idm.impl.api.IdentitySearchCriteriaImpl;
import java.util.Collection;
import java.util.List;
import java.util.LinkedList;
import java.io.Serializable;
/**
* @author <a href="mailto:boleslaw.dawidowicz at redhat.com">Boleslaw Dawidowicz</a>
* @version : 0.1 $
*/
public class UserQueryExecutorImpl extends AbstractQueryExecutor implements Serializable
{
private static final long serialVersionUID = -4196998772910705233L;
public UserQueryExecutorImpl(IdentitySession identitySession)
{
super(identitySession);
}
public Collection<User> execute(UserQueryImpl q) throws QueryException
{
List<User> resultsMain = new LinkedList<User>();
try
{
User uniqueUser = null;
List<User> resultsAssociatedGroups = new LinkedList<User>();
List<User> resultsConnectedWithRoleGroups = new LinkedList<User>();
List<User> resultsRelatedGroups = new LinkedList<User>();
// if no conditions perform full search
if (q.userId == null &&
q.groupsAssociatedWith.size() == 0 &&
q.groupsConnectedWithRole.size() == 0 &&
q.groupsRelated.size() == 0)
{
return identitySession.getPersistenceManager().findUser(q.searchCriteria);
}
// Process each condition separately
if (q.userId != null)
{
uniqueUser = identitySession.getPersistenceManager().findUser(q.userId);
}
if (q.groupsAssociatedWith.size() > 0)
{
for (Group group : q.groupsAssociatedWith)
{
addAllPreservingDuplicates(resultsAssociatedGroups, identitySession.getRelationshipManager().
findAssociatedUsers(group, false, q.searchCriteria));
}
}
if (q.groupsConnectedWithRole.size() > 0)
{
for (Group group : q.groupsConnectedWithRole)
{
addAllPreservingDuplicates(resultsConnectedWithRoleGroups, identitySession.getRoleManager().
findUsersWithRelatedRole(group, q.searchCriteria));
}
}
if (q.groupsRelated.size() > 0)
{
for (Group group : q.groupsRelated)
{
addAllPreservingDuplicates(resultsRelatedGroups, identitySession.getRelationshipManager().
findRelatedUsers(group, q.searchCriteria));
}
}
// If only one condition was present just return it
if (q.userId != null &&
uniqueUser != null &&
q.groupsAssociatedWith.size() == 0 &&
resultsAssociatedGroups.size() == 0 &&
q.groupsConnectedWithRole.size() == 0 &&
resultsConnectedWithRoleGroups.size() == 0 &&
q.groupsRelated.size() == 0 &&
resultsRelatedGroups.size() == 0)
{
resultsMain.add(uniqueUser);
resultsMain = IdentitySearchCriteriaImpl.applyCriteria(identitySession, q.searchCriteria, resultsMain);
return resultsMain;
}
else if (q.userId == null &&
uniqueUser == null &&
q.groupsAssociatedWith.size() > 0 &&
resultsAssociatedGroups.size() > 0 &&
q.groupsConnectedWithRole.size() == 0 &&
resultsConnectedWithRoleGroups.size() == 0 &&
q.groupsRelated.size() == 0 &&
resultsRelatedGroups.size() == 0)
{
return resultsAssociatedGroups;
}
else if (q.userId == null &&
uniqueUser == null &&
q.groupsAssociatedWith.size() == 0 &&
resultsAssociatedGroups.size() == 0 &&
q.groupsConnectedWithRole.size() > 0 &&
resultsConnectedWithRoleGroups.size() > 0 &&
q.groupsRelated.size() == 0 &&
resultsRelatedGroups.size() == 0)
{
return resultsConnectedWithRoleGroups;
}
else if (q.userId == null &&
uniqueUser == null &&
q.groupsAssociatedWith.size() == 0 &&
resultsAssociatedGroups.size() == 0 &&
q.groupsConnectedWithRole.size() == 0 &&
resultsConnectedWithRoleGroups.size() == 0 &&
q.groupsRelated.size() > 0 &&
resultsRelatedGroups.size() > 0)
{
return resultsRelatedGroups;
}
// Merge results with logical AND
boolean first = true;
if (q.userId != null && uniqueUser != null)
{
first = false;
resultsMain.add(uniqueUser);
}
if (q.groupsAssociatedWith.size() > 0)
{
if (first)
{
resultsMain = resultsAssociatedGroups;
first = false;
}
else
{
resultsMain = mergeIdentityTypeWithAND(resultsMain, resultsAssociatedGroups);
}
}
if (q.groupsConnectedWithRole.size() > 0)
{
if (first)
{
resultsMain = resultsConnectedWithRoleGroups;
first = false;
}
else
{
resultsMain = mergeIdentityTypeWithAND(resultsMain, resultsConnectedWithRoleGroups);
}
}
if (q.groupsRelated.size() > 0)
{
if (first)
{
resultsMain = resultsRelatedGroups;
first = false;
}
else
{
resultsMain = mergeIdentityTypeWithAND(resultsMain, resultsRelatedGroups);
}
}
// As results were merged criteria need to be applied separately
if (resultsMain.size() > 0)
{
resultsMain = IdentitySearchCriteriaImpl.applyCriteria(identitySession, q.searchCriteria, resultsMain);
}
}
catch (Exception e)
{
throw new QueryException("Failed to execute query", e);
}
return resultsMain;
}
public User uniqueResult(UserQueryImpl userQuery) throws QueryException
{
Collection<User> results = execute(userQuery);
if (results.size() > 1)
{
throw new QueryException("More than one result returned");
}
else if (results.size() == 1)
{
return results.iterator().next();
}
return null;
}
public List<User> list(UserQueryImpl userQuery) throws QueryException
{
Collection<User> results = execute(userQuery);
if (results instanceof List)
{
return (List<User>)results;
}
//TODO:
throw new NotYetImplementedException();
}
}