dday.java

JAVA编写的

/**
 * Copyright (c) 2009, Ben Fortuna
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  o Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 *  o Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 *  o Neither the name of Ben Fortuna nor the names of any other contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.fortuna.ical4j.vcard.property;

import static org.apache.commons.lang.StringUtils.isNotEmpty;
import net.fortuna.ical4j.model.Date;
import net.fortuna.ical4j.model.Escapable;
import net.fortuna.ical4j.model.ValidationException;
import net.fortuna.ical4j.util.Strings;
import net.fortuna.ical4j.vcard.Parameter;
import net.fortuna.ical4j.vcard.Property;
import net.fortuna.ical4j.vcard.parameter.Value;

/**
 * $Id: DDay.java,v 1.8 2009/01/12 03:34:37 fortuna Exp $
 *
 * Created on 23/08/2008
 *
 * @author Ben
 *
 */
public final class DDay extends Property implements Escapable {
    
    /**
     * 
     */
    private static final long serialVersionUID = 3969167775362943497L;

    private Date date;
    
    private String description;
    
    /**
     * @param date
     */
    public DDay(Date date) {
        super(Id.DDAY);
        this.date = date;
    }
    
    /**
     * @param description
     */
    public DDay(String description) {
        super(Id.DDAY);
        this.description = description;
        getParameters().add(Value.TEXT);
    }
    
    /**
     * @return the date
     */
    public Date getDate() {
        return date;
    }

    /**
     * @return the description
     */
    public String getDescription() {
        return description;
    }

    /* (non-Javadoc)
     * @see net.fortuna.ical4j.vcard.Property#getValue()
     */
    @Override
    public String getValue() {
        if (isNotEmpty(description)) {
            return description;
        }
        return Strings.valueOf(date);
    }

    /* (non-Javadoc)
     * @see net.fortuna.ical4j.vcard.Property#validate()
     */
    @Override
    public void validate() throws ValidationException {
        // ; Only value parameter allowed
        assertOneOrLess(Parameter.Id.VALUE);
        
        if (getParameters().size() > 1) {
            throw new ValidationException("Illegal parameter count");
        }
        
        for (Parameter param : getParameters()) {
            if (!Value.TEXT.equals(param)) {
                throw new ValidationException("Illegal parameter [" + param.getId() + "]");
            }
        }
    }

}