/*
* Anonymous.java
*
* Copyright (c) 2013, Instituto Superior Técnico. All rights reserved.
*
* This file is part of bennu-core.
*
* bennu-core 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 3 of the License, or (at your option) any later version.
*
* bennu-core 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 bennu-core. If not, see
* <http://www.gnu.org/licenses/>.
*/
package org.fenixedu.bennu.core.groups;
import java.util.stream.Stream;
import org.fenixedu.bennu.core.annotation.GroupOperator;
import org.fenixedu.bennu.core.domain.User;
import org.fenixedu.bennu.core.i18n.BundleUtil;
import org.joda.time.DateTime;
/**
* Group for unauthenticated users.
*
* @author Pedro Santos (pedro.miguel.santos@tecnico.ulisboa.pt)
* @see Group
*/
@GroupOperator("anonymous")
final class AnonymousGroup extends GroupStrategy {
private static final long serialVersionUID = 719303318142232943L;
AnonymousGroup() {
super();
}
@Override
public String getPresentationName() {
return BundleUtil.getString("resources.BennuResources", "label.bennu.group.anonymous");
}
@Override
public Stream<User> getMembers() {
return Stream.empty();
}
@Override
public boolean isMember(final User user) {
return user == null;
}
@Override
public Stream<User> getMembers(DateTime when) {
return getMembers();
}
@Override
public boolean isMember(User user, DateTime when) {
return isMember(user);
}
@Override
public Group and(Group group) {
if (group instanceof LoggedGroup) {
return Group.nobody();
}
return super.and(group);
}
@Override
public Group or(Group group) {
if (group instanceof LoggedGroup) {
return Group.anyone();
}
return super.or(group);
}
@Override
public Group minus(Group group) {
if (group instanceof LoggedGroup) {
return this;
}
return super.minus(group);
}
@Override
public Group not() {
return Group.logged();
}
}