001    package biweekly.property.marshaller;
002    
003    import java.util.List;
004    
005    import biweekly.ICalDataType;
006    import biweekly.Warning;
007    import biweekly.io.json.JCalValue;
008    import biweekly.io.xml.XCalElement;
009    import biweekly.parameter.ICalParameters;
010    import biweekly.property.TextProperty;
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 properties that have text values.
039     * @param <T> the property class
040     * @author Michael Angstadt
041     */
042    public abstract class TextPropertyMarshaller<T extends TextProperty> extends ICalPropertyMarshaller<T> {
043            public TextPropertyMarshaller(Class<T> clazz, String propertyName) {
044                    this(clazz, propertyName, ICalDataType.TEXT);
045            }
046    
047            public TextPropertyMarshaller(Class<T> clazz, String propertyName, ICalDataType dataType) {
048                    super(clazz, propertyName, dataType);
049            }
050    
051            @Override
052            protected String _writeText(T property) {
053                    String value = property.getValue();
054                    if (value != null) {
055                            return escape(value);
056                    }
057    
058                    return "";
059            }
060    
061            @Override
062            protected T _parseText(String value, ICalDataType dataType, ICalParameters parameters, List<Warning> warnings) {
063                    value = unescape(value);
064                    return newInstance(value);
065            }
066    
067            @Override
068            protected void _writeXml(T property, XCalElement element) {
069                    element.append(dataType(property), property.getValue());
070            }
071    
072            @Override
073            protected T _parseXml(XCalElement element, ICalParameters parameters, List<Warning> warnings) {
074                    String value = element.first(defaultDataType);
075                    if (value != null) {
076                            return newInstance(value);
077                    }
078    
079                    throw missingXmlElements(defaultDataType);
080            }
081    
082            @Override
083            protected JCalValue _writeJson(T property) {
084                    return JCalValue.single(property.getValue());
085            }
086    
087            @Override
088            protected T _parseJson(JCalValue value, ICalDataType dataType, ICalParameters parameters, List<Warning> warnings) {
089                    return newInstance(value.asSingle());
090            }
091    
092            protected abstract T newInstance(String value);
093    }