001    package biweekly.property.marshaller;
002    
003    import java.util.List;
004    
005    import biweekly.io.CannotParseException;
006    import biweekly.io.xml.XCalElement;
007    import biweekly.parameter.ICalParameters;
008    import biweekly.parameter.Value;
009    import biweekly.property.DurationProperty;
010    import biweekly.util.Duration;
011    
012    /*
013     Copyright (c) 2013, Michael Angstadt
014     All rights reserved.
015    
016     Redistribution and use in source and binary forms, with or without
017     modification, are permitted provided that the following conditions are met: 
018    
019     1. Redistributions of source code must retain the above copyright notice, this
020     list of conditions and the following disclaimer. 
021     2. Redistributions in binary form must reproduce the above copyright notice,
022     this list of conditions and the following disclaimer in the documentation
023     and/or other materials provided with the distribution. 
024    
025     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
026     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
027     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
028     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
029     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
030     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
031     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
032     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
033     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
034     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
035     */
036    
037    /**
038     * Marshals {@link DurationProperty} properties.
039     * @author Michael Angstadt
040     */
041    public class DurationPropertyMarshaller extends ICalPropertyMarshaller<DurationProperty> {
042            public DurationPropertyMarshaller() {
043                    super(DurationProperty.class, "DURATION");
044            }
045    
046            @Override
047            protected String _writeText(DurationProperty property) {
048                    Duration duration = property.getValue();
049                    return (duration == null) ? "" : duration.toString();
050            }
051    
052            @Override
053            protected DurationProperty _parseText(String value, ICalParameters parameters, List<String> warnings) {
054                    value = unescape(value);
055                    return parse(value);
056            }
057    
058            @Override
059            protected void _writeXml(DurationProperty property, XCalElement element) {
060                    Duration value = property.getValue();
061                    if (value != null) {
062                            element.append(Value.DURATION, value.toString());
063                    }
064            }
065    
066            @Override
067            protected DurationProperty _parseXml(XCalElement element, ICalParameters parameters, List<String> warnings) {
068                    String value = element.first(Value.DURATION);
069                    return parse(value);
070            }
071    
072            private DurationProperty parse(String value) {
073                    if (value == null) {
074                            return new DurationProperty(null);
075                    }
076    
077                    try {
078                            Duration duration = Duration.parse(value);
079                            return new DurationProperty(duration);
080                    } catch (IllegalArgumentException e) {
081                            throw new CannotParseException("Could not parse duration value.");
082                    }
083            }
084    }