pt.ist.bennu.core.domain.groups.UnionGroup.java Source code

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Here is the source code for pt.ist.bennu.core.domain.groups.UnionGroup.java

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/* 
 * @(#)UnionGroup.java 
 * 
 * Copyright 2009 Instituto Superior Tecnico 
 * Founding Authors: Joo Figueiredo, Luis Cruz, Paulo Abrantes, Susana Fernandes 
 *  
 *      https://fenix-ashes.ist.utl.pt/ 
 *  
 *   This file is part of the Bennu Web Application Infrastructure. 
 * 
 *   The Bennu Web Application Infrastructure 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  
 *   3 of the License, or (at your option) any later version. 
 * 
 *   Bennu 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 Bennu. If not, see <http://www.gnu.org/licenses/>. 
 *  
 */
package pt.ist.bennu.core.domain.groups;

import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import org.apache.commons.collections.CollectionUtils;

import pt.ist.bennu.core.domain.MyOrg;
import pt.ist.bennu.core.domain.User;
import pt.ist.fenixframework.Atomic;

/**
 * 
 * @author Joo Antunes
 * @author Srgio Silva
 * @author Luis Cruz
 * 
 */
public class UnionGroup extends UnionGroup_Base {

    public UnionGroup() {
        super();
    }

    public UnionGroup(final PersistentGroup... persistentGroups) {
        super();
        for (final PersistentGroup persistentGroup : persistentGroups) {
            addPersistentGroups(persistentGroup);
        }
    }

    public UnionGroup(final Collection<PersistentGroup> persistentGroups) {
        super();
        for (final PersistentGroup persistentGroup : persistentGroups) {
            addPersistentGroups(persistentGroup);
        }
    }

    @Override
    public Set<User> getMembers() {
        final Set<User> users = new HashSet<User>();
        for (final PersistentGroup persistentGroup : getPersistentGroupsSet()) {
            users.addAll(persistentGroup.getMembers());
        }
        return users;
    }

    @Override
    public String getName() {
        String groupName = "Union of: ";
        for (Iterator persistentGroupIterator = getPersistentGroupsSet().iterator(); persistentGroupIterator
                .hasNext();) {
            PersistentGroup group = (PersistentGroup) persistentGroupIterator.next();
            groupName = groupName.concat(group.getName());
            if (persistentGroupIterator.hasNext()) {
                groupName = groupName.concat(" AND ");
            }
        }
        return groupName;
    }

    @Override
    public boolean isMember(final User user) {
        for (final PersistentGroup persistentGroup : getPersistentGroupsSet()) {
            if (persistentGroup.isMember(user)) {
                return true;
            }
        }
        return false;
    }

    @Atomic
    public static UnionGroup createUnionGroup(final PersistentGroup... persistentGroups) {
        return new UnionGroup(persistentGroups);
    }

    public static UnionGroup getOrCreateUnionGroup(final PersistentGroup... persistentGroups) {
        for (PersistentGroup group : MyOrg.getInstance().getPersistentGroupsSet()) {
            if (group instanceof UnionGroup) {
                UnionGroup unionGroup = (UnionGroup) group;
                if (CollectionUtils.isEqualCollection(unionGroup.getPersistentGroupsSet(),
                        Arrays.asList(persistentGroups))) {
                    return unionGroup;
                }
            }
        }
        return UnionGroup.createUnionGroup(persistentGroups);
    }

    @Deprecated
    public java.util.Set<pt.ist.bennu.core.domain.groups.PersistentGroup> getPersistentGroups() {
        return getPersistentGroupsSet();
    }

}