ScheduleValueAttributeNDays.java

/**
 * EasyBeans
 * Copyright (C) 2012 Bull S.A.S.
 * Contact: easybeans@ow2.org
 *
 * This library 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 2.1 of the License, or any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 * --------------------------------------------------------------------------
 * $Id$
 * --------------------------------------------------------------------------
 */

package org.ow2.easybeans.component.quartz;

import java.util.Calendar;

/**
 * Defines a nDays attribute : it's for example "5th mon" or "last mon".
 * @author Florent Benoit
 */
public class ScheduleValueAttributeNDays extends ScheduleValue {

    /**
     * Number value.
     */
    private String number;

    /**
     * The day (suffix) or the nday.
     */
    private String day;

    /**
     * Build a new value for the given value to extract and the given calendar
     * field.
     * @param value the value like "2nd tue"
     * @param calendarField the calendar field
     */
    public ScheduleValueAttributeNDays(final String value, final int calendarField) {
        super(calendarField);

        String[] nDays = getNDays(value);
        this.number = nDays[0];
        this.day = nDays[1];

    }

    /**
     * @param afterTimeCalendar the calendar to use in order to compute the next available value
     * @return the next value result for the given calendar for the calendard field associated.
     */
    @Override
    @SuppressWarnings("boxing")
    public ValueResult getTimeAfter(final Calendar afterTimeCalendar) {
        ValueResult valueResult = new ValueResult();

        Integer computeDay = computeNDays(this.number, this.day, afterTimeCalendar);
        if (computeDay == null) {
            valueResult.setResult(afterTimeCalendar.get(getCalendarField()));
            valueResult.setNeedsIncrement(true);
        } else {
            valueResult.setResult(computeDay);
        }

        return valueResult;
    }

    /**
     * @return string representation
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append(this.getClass().getSimpleName());
        sb.append("[number=");
        sb.append(this.number);
        sb.append(",day=");
        sb.append(this.day);
        sb.append("]");
        return sb.toString();
    }

}