SearchInternalPersonsByNameHavingTeacherOrIsResearcher.java

/**
 * Copyright © 2002 Instituto Superior Técnico
 *
 * This file is part of FenixEdu Academic.
 *
 * FenixEdu Academic 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.
 *
 * FenixEdu Academic 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 FenixEdu Academic.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.fenixedu.academic.service.services.commons.searchers;

import java.util.Collection;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.fenixedu.academic.domain.Person;
import org.fenixedu.academic.domain.person.RoleType;

public class SearchInternalPersonsByNameHavingTeacherOrIsResearcher extends SearchParties<Person> {

    @Override
    protected Collection<Person> search(String value, int size) {
        final Predicate<Person> isTeacherOrResearcher = person -> person.getUser() != null
                && (person.getTeacher() != null || RoleType.RESEARCHER.isMember(person.getUser()));

        Person personByUsername = Person.readPersonByUsername(value);

        return Stream
                .concat(personByUsername != null ? Stream.of(personByUsername) : Stream.empty(),
                        Person.findPersonStream(value, Integer.MAX_VALUE))
                .filter(isTeacherOrResearcher).limit(size)
                .collect(Collectors.toSet());
    }
}