PersonSearcher.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.person;

import java.util.Objects;
import java.util.stream.Stream;

import org.fenixedu.academic.domain.Person;
import org.fenixedu.academic.domain.person.IDDocumentType;
import org.fenixedu.bennu.core.domain.Bennu;
import org.fenixedu.bennu.core.domain.User;
import org.fenixedu.bennu.core.domain.UserProfile;

import com.google.common.base.Strings;

public class PersonSearcher {
    private String name;

    private String username;

    private String query;

    private String documentIdNumber;

    private IDDocumentType idDocumentType;

    public PersonSearcher() {
    }

    public PersonSearcher name(String name) {
        this.name = name;
        return this;
    }

    public PersonSearcher username(String username) {
        this.username = username;
        return this;
    }

    public PersonSearcher bestEffortQuery(String query) {
        this.query = query;
        return this;
    }

    public PersonSearcher documentIdNumber(String documentIdNumber) {
        this.documentIdNumber = documentIdNumber;
        return this;
    }

    public PersonSearcher documentIdType(IDDocumentType idDocumentType) {
        this.idDocumentType = idDocumentType;
        return this;
    }

    public Stream<Person> search(int maxHits) {
        Stream<UserProfile> stream;
        if (!Strings.isNullOrEmpty(query)) {
            stream =
                    Stream.concat(Stream.of(User.findByUsername(query)).filter(Objects::nonNull).map(User::getProfile),
                            UserProfile.searchByName(query, Integer.MAX_VALUE)).limit(maxHits);
        } else if (!Strings.isNullOrEmpty(username)) {
            stream = Stream.of(User.findByUsername(query)).filter(Objects::nonNull).map(User::getProfile);
        } else if (!Strings.isNullOrEmpty(name)) {
            stream = UserProfile.searchByName(name, maxHits);
        } else {
            stream = Bennu.getInstance().getUserSet().stream().map(User::getProfile);
        }
        return stream.filter(Objects::nonNull).map(UserProfile::getPerson).filter(Objects::nonNull).limit(maxHits);
    }

    public Stream<Person> search() {
        return search(Integer.MAX_VALUE);
    }
}