001 package biweekly.property.marshaller;
002
003 import java.util.Date;
004 import java.util.List;
005
006 import biweekly.ICalDataType;
007 import biweekly.io.CannotParseException;
008 import biweekly.io.json.JCalValue;
009 import biweekly.io.xml.XCalElement;
010 import biweekly.parameter.ICalParameters;
011 import biweekly.property.Trigger;
012 import biweekly.util.Duration;
013
014 /*
015 Copyright (c) 2013, Michael Angstadt
016 All rights reserved.
017
018 Redistribution and use in source and binary forms, with or without
019 modification, are permitted provided that the following conditions are met:
020
021 1. Redistributions of source code must retain the above copyright notice, this
022 list of conditions and the following disclaimer.
023 2. Redistributions in binary form must reproduce the above copyright notice,
024 this list of conditions and the following disclaimer in the documentation
025 and/or other materials provided with the distribution.
026
027 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
028 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
029 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
030 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
031 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
032 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
033 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
034 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
035 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
036 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
037 */
038
039 /**
040 * Marshals {@link Trigger} properties.
041 * @author Michael Angstadt
042 */
043 public class TriggerMarshaller extends ICalPropertyMarshaller<Trigger> {
044 public TriggerMarshaller() {
045 super(Trigger.class, "TRIGGER", ICalDataType.DURATION);
046 }
047
048 @Override
049 protected ICalDataType _dataType(Trigger property) {
050 return (property.getDate() == null) ? ICalDataType.DURATION : ICalDataType.DATE_TIME;
051 }
052
053 @Override
054 protected String _writeText(Trigger property) {
055 Duration duration = property.getDuration();
056 if (duration != null) {
057 return duration.toString();
058 }
059
060 Date date = property.getDate();
061 if (date != null) {
062 return date(date).write();
063 }
064
065 return "";
066 }
067
068 @Override
069 protected Trigger _parseText(String value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) {
070 value = unescape(value);
071
072 try {
073 Date date = date(value).tzid(parameters.getTimezoneId(), warnings).parse();
074 return new Trigger(date);
075 } catch (IllegalArgumentException e) {
076 //unable to parse value as date, must be a duration
077 }
078
079 try {
080 return new Trigger(Duration.parse(value), parameters.getRelated());
081 } catch (IllegalArgumentException e) {
082 //unable to parse duration
083 }
084
085 throw new CannotParseException("Could not parse value as a date or duration.");
086 }
087
088 @Override
089 protected void _writeXml(Trigger property, XCalElement element) {
090 Duration duration = property.getDuration();
091 if (duration != null) {
092 element.append(ICalDataType.DURATION, duration.toString());
093 return;
094 }
095
096 Date date = property.getDate();
097 if (date != null) {
098 element.append(ICalDataType.DATE_TIME, date(date).extended(true).write());
099 return;
100 }
101
102 element.append(defaultDataType, "");
103 }
104
105 @Override
106 protected Trigger _parseXml(XCalElement element, ICalParameters parameters, List<String> warnings) {
107 String value = element.first(ICalDataType.DURATION);
108 if (value != null) {
109 try {
110 return new Trigger(Duration.parse(value), parameters.getRelated());
111 } catch (IllegalArgumentException e) {
112 throw new CannotParseException("Could not parse duration: " + value);
113 }
114 }
115
116 value = element.first(ICalDataType.DATE_TIME);
117 if (value != null) {
118 try {
119 Date date = date(value).tzid(parameters.getTimezoneId(), warnings).parse();
120 return new Trigger(date);
121 } catch (IllegalArgumentException e) {
122 throw new CannotParseException("Could not parse date: " + value);
123 }
124 }
125
126 throw missingXmlElements(ICalDataType.DURATION, ICalDataType.DATE_TIME);
127 }
128
129 @Override
130 protected JCalValue _writeJson(Trigger property) {
131 Duration duration = property.getDuration();
132 if (duration != null) {
133 return JCalValue.single(duration.toString());
134 }
135
136 Date date = property.getDate();
137 if (date != null) {
138 return JCalValue.single(date(date).extended(true).write());
139 }
140
141 return JCalValue.single("");
142 }
143
144 @Override
145 protected Trigger _parseJson(JCalValue value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) {
146 String valueStr = value.asSingle();
147
148 try {
149 Date date = date(valueStr).tzid(parameters.getTimezoneId(), warnings).parse();
150 return new Trigger(date);
151 } catch (IllegalArgumentException e) {
152 //must be a duration
153 }
154
155 try {
156 return new Trigger(Duration.parse(valueStr), parameters.getRelated());
157 } catch (IllegalArgumentException e) {
158 throw new CannotParseException("Could not parse value as a date or duration.");
159 }
160 }
161 }