au.com.jwatmuff.eventmanager.model.misc.PoolChecker.java Source code

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Here is the source code for au.com.jwatmuff.eventmanager.model.misc.PoolChecker.java

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/*
 * EventManager
 * Copyright (c) 2008-2017 James Watmuff & Leonard Hall
 *
 * This program 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.
 *
 *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package au.com.jwatmuff.eventmanager.model.misc;

import au.com.jwatmuff.eventmanager.db.PlayerDAO;
import au.com.jwatmuff.eventmanager.model.config.ConfigurationFile;
import au.com.jwatmuff.eventmanager.model.vo.CompetitionInfo;
import au.com.jwatmuff.eventmanager.model.vo.Player;
import au.com.jwatmuff.eventmanager.model.vo.Player.Grade;
import au.com.jwatmuff.eventmanager.model.vo.Player.Gender;
import au.com.jwatmuff.eventmanager.model.vo.Pool;
import au.com.jwatmuff.genericdb.Database;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Predicate;
import org.apache.log4j.Logger;

/**
 *
 * @author James
 */
public class PoolChecker {
    public static final Logger log = Logger.getLogger(PoolChecker.class);

    /** Creates a new instance of PoolChecker */
    private PoolChecker() {
    }

    public static int calculateAge(Date dob, Date censusDate) {
        if (dob == null)
            return -1;

        /* calculate age */
        GregorianCalendar birthCal = new GregorianCalendar();
        birthCal.setTime(dob);
        int birthYear = birthCal.get(GregorianCalendar.YEAR);

        GregorianCalendar censusCal = new GregorianCalendar();
        censusCal.setTime(censusDate);
        int censusYear = censusCal.get(GregorianCalendar.YEAR);

        int age = censusYear - birthYear;

        birthCal.set(GregorianCalendar.YEAR, censusYear);
        if (censusCal.before(birthCal)) {
            age--;
        }

        return age;
    }

    private static int getAge(Player p, Date censusDate) {
        return calculateAge(p.getDob(), censusDate);
    }

    /**
     * Checks whether the given player is eligible to be entered into the given
     * pool.
     * 
     * @param p             The player to check
     * @param pool          The pool which the player wants to be entered in
     * @param censusDate    The date at which to calculate the player's age
     * 
     * @return              True if the player is eligible, false otherwise.
     */
    public static boolean checkPlayer(Player p, Pool pool, Date censusDate, ConfigurationFile configurationFile) {
        if (p.getLockedStatus() != Player.LockedStatus.LOCKED) {
            return false;
        }

        // check gender
        if ((pool.getGender() != null) && (pool.getGender() != Gender.UNSPECIFIED)
                && (p.getGender() != pool.getGender())) {
            return false;
        }

        // check weight
        if (pool.getMaximumWeight() > 0) {
            if (p.getWeight() > pool.getMaximumWeight() || p.getWeight() <= 0) {
                return false;
            }
        }

        if (pool.getMinimumWeight() > 0) {
            if (p.getWeight() < pool.getMinimumWeight() || p.getWeight() <= 0) {
                return false;
            }
        }

        int age = getAge(p, censusDate);
        if (age > 0) {
            if (pool.getMaximumAge() > 0) {
                if (age > pool.getMaximumAge()) {
                    return false;
                }
            }

            if (pool.getMinimumAge() > 0) {
                if (age < pool.getMinimumAge()) {
                    return false;
                }
            }
        } else if (pool.getMaximumAge() > 0 || pool.getMinimumAge() > 0) {
            return false;
        }

        // adjust belt if necessary
        Grade grade = p.getGrade();

        // check grade/belt
        Grade maxGrade = pool.getMaximumGrade();
        if ((maxGrade != null) && (maxGrade != Grade.UNSPECIFIED)
                && ((maxGrade.compareTo(grade) < 0) || (grade == Grade.UNSPECIFIED))) {
            return false;
        }
        Grade minGrade = pool.getMinimumGrade();
        if ((minGrade != null) && (minGrade != Grade.UNSPECIFIED)
                && ((minGrade.compareTo(grade) > 0) || (grade == Grade.UNSPECIFIED))) {
            return false;
        }

        return true;
    }

    public static List<Player> findEligiblePlayers(final Pool pool, Database database) {
        final CompetitionInfo ci = database.get(CompetitionInfo.class, null);
        final ConfigurationFile configurationFile = ConfigurationFile.getConfiguration(ci.getDrawConfiguration());
        List<Player> players = database.findAll(Player.class, PlayerDAO.ALL);
        CollectionUtils.filter(players, new Predicate() {
            public boolean evaluate(Object arg0) {
                return checkPlayer((Player) arg0, pool, ci.getAgeThresholdDate(), configurationFile);
            }
        });
        return players;
    }
}