001    package biweekly.property.marshaller;
002    
003    import java.util.List;
004    
005    import biweekly.ICalDataType;
006    import biweekly.io.json.JCalValue;
007    import biweekly.io.xml.XCalElement;
008    import biweekly.parameter.ICalParameters;
009    import biweekly.property.TextProperty;
010    
011    /*
012     Copyright (c) 2013, Michael Angstadt
013     All rights reserved.
014    
015     Redistribution and use in source and binary forms, with or without
016     modification, are permitted provided that the following conditions are met: 
017    
018     1. Redistributions of source code must retain the above copyright notice, this
019     list of conditions and the following disclaimer. 
020     2. Redistributions in binary form must reproduce the above copyright notice,
021     this list of conditions and the following disclaimer in the documentation
022     and/or other materials provided with the distribution. 
023    
024     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
025     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
026     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
027     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
028     ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
029     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
030     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
031     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
032     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
033     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
034     */
035    
036    /**
037     * Marshals properties that have text values.
038     * @param <T> the property class
039     * @author Michael Angstadt
040     */
041    public abstract class TextPropertyMarshaller<T extends TextProperty> extends ICalPropertyMarshaller<T> {
042            public TextPropertyMarshaller(Class<T> clazz, String propertyName) {
043                    this(clazz, propertyName, ICalDataType.TEXT);
044            }
045    
046            public TextPropertyMarshaller(Class<T> clazz, String propertyName, ICalDataType dataType) {
047                    super(clazz, propertyName, dataType);
048            }
049    
050            @Override
051            protected String _writeText(T property) {
052                    String value = property.getValue();
053                    if (value != null) {
054                            return escape(value);
055                    }
056    
057                    return "";
058            }
059    
060            @Override
061            protected T _parseText(String value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) {
062                    value = unescape(value);
063                    return newInstance(value);
064            }
065    
066            @Override
067            protected void _writeXml(T property, XCalElement element) {
068                    element.append(dataType(property), property.getValue());
069            }
070    
071            @Override
072            protected T _parseXml(XCalElement element, ICalParameters parameters, List<String> warnings) {
073                    String value = element.first(defaultDataType);
074                    if (value != null) {
075                            return newInstance(value);
076                    }
077    
078                    throw missingXmlElements(defaultDataType);
079            }
080    
081            @Override
082            protected JCalValue _writeJson(T property) {
083                    return JCalValue.single(property.getValue());
084            }
085    
086            @Override
087            protected T _parseJson(JCalValue value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) {
088                    return newInstance(value.asSingle());
089            }
090    
091            protected abstract T newInstance(String value);
092    }