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/*
 * $Id: CalendarKitCalculatorsFactory.java 187 2006-09-19 09:58:18Z benoitx $
 * 
 * Copyright 2006 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package net.objectlab.kit.datecalc.jdk;

import java.util.Calendar;

import net.objectlab.kit.datecalc.common.AbstractKitCalculatorsFactory;
import net.objectlab.kit.datecalc.common.DateCalculator;
import net.objectlab.kit.datecalc.common.HolidayHandlerType;
import net.objectlab.kit.datecalc.common.IMMDateCalculator;
import net.objectlab.kit.datecalc.common.PeriodCountCalculator;

/**
 * The default factory for getting Jdk Calendar based
 * calculators.
 * 
 * @author Marcin Jekot
 * @author $LastChangedBy: benoitx $
 * @version $Revision: 187 $ $Date: 2006-09-19 10:58:18 +0100 (Tue, 19 Sep 2006) $
 * 
 */
public class CalendarKitCalculatorsFactory extends AbstractKitCalculatorsFactory {

    private static final CalendarKitCalculatorsFactory DEFAULT = new CalendarKitCalculatorsFactory();

    private static final PeriodCountCalculator PCC = new CalendarPeriodCountCalculator();

    private static final CalendarIMMDateCalculator IMMDC = new CalendarIMMDateCalculator();

    public static CalendarKitCalculatorsFactory getDefaultInstance() {
        return DEFAULT;
    }

    /**
     * Create a new DateCalculator for a given name and type of handling.
     * 
     * @param name
     *            calendar name (holidays set interested in). If there is set of
     *            holidays with that name, it will return a DateCalculator with
     *            an empty holiday set (will work on Weekend only).
     * @param holidayHandlerType
     *            typically one of the value of HolidayHandlerType or null.
     * @return a new DateCalculator
     * @exception IllegalArgumentException
     *                if the type is not null or a valid value.
     */
    public DateCalculator getDateCalculator(final String name, final String holidayHandlerType) {
        final CalendarDateCalculator cal = new CalendarDateCalculator();
        cal.setName(name);
        setHolidays(name, cal);

        if (holidayHandlerType == null) {
            return cal;
        } else if (HolidayHandlerType.FORWARD.equals(holidayHandlerType)) {
            cal.setHolidayHandler(new CalendarForwardHandler());
        } else if (HolidayHandlerType.BACKWARD.equals(holidayHandlerType)) {
            cal.setHolidayHandler(new CalendarBackwardHandler());
        } else if (HolidayHandlerType.MODIFIED_FOLLLOWING.equals(holidayHandlerType)) {
            cal.setHolidayHandler(new CalendarModifiedFollowingHandler());
        } else if (HolidayHandlerType.MODIFIED_PRECEEDING.equals(holidayHandlerType)) {
            cal.setHolidayHandler(new CalendarModifiedPreceedingHandler());
        } else {
            throw new IllegalArgumentException("Unsupported HolidayHandler: " + holidayHandlerType);
        }

        return cal;
    }

    /**
     * Create a new PeriodCountCalculator.
     * 
     * @return a PeriodCountCalculator
     */
    public PeriodCountCalculator getPeriodCountCalculator() {
        return PCC;
    }

    /**
     * Create a new IMMDateCalculator.
     * 
     * @return an IMMDateCalculator
     */
    public IMMDateCalculator getIMMDateCalculator() {
        return IMMDC;
    }
}




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