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

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

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/* 
 * @(#)IntersectionGroup.java 
 * 
 * Copyright 2010 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.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.commons.lang.StringUtils;

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

/**
 * 
 * @author Susana Fernandes
 * 
 */
public class IntersectionGroup extends IntersectionGroup_Base {

    protected IntersectionGroup() {
    }

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

    public IntersectionGroup(final Collection<PersistentGroup> persistentGroupCollection) {
        super();
        for (PersistentGroup persistenGroup : persistentGroupCollection) {
            addPersistentGroups(persistenGroup);
        }
    }

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

    @Override
    public String getName() {
        List<String> names = new ArrayList<String>();
        for (PersistentGroup group : getPersistentGroupsSet()) {
            names.add("(" + group.getName() + ")");
        }
        return "Intersection of: ".concat(StringUtils.join(names, " AND "));
    }

    @Override
    public boolean isMember(final User user) {
        if (getPersistentGroupsSet().size() == 0) {
            return false;
        }
        for (final PersistentGroup persistentGroup : getPersistentGroupsSet()) {
            if (!persistentGroup.isMember(user)) {
                return false;
            }
        }
        return true;
    }

    @Atomic
    public static IntersectionGroup createIntersectionGroup(final PersistentGroup... persistentGroups) {
        return new IntersectionGroup(persistentGroups);
    }

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

}