001 package biweekly.property.marshaller; 002 003 import java.util.List; 004 005 import biweekly.ICalDataType; 006 import biweekly.io.CannotParseException; 007 import biweekly.io.json.JCalValue; 008 import biweekly.io.xml.XCalElement; 009 import biweekly.parameter.ICalParameters; 010 import biweekly.property.UtcOffsetProperty; 011 import biweekly.util.UtcOffset; 012 013 /* 014 Copyright (c) 2013, Michael Angstadt 015 All rights reserved. 016 017 Redistribution and use in source and binary forms, with or without 018 modification, are permitted provided that the following conditions are met: 019 020 1. Redistributions of source code must retain the above copyright notice, this 021 list of conditions and the following disclaimer. 022 2. Redistributions in binary form must reproduce the above copyright notice, 023 this list of conditions and the following disclaimer in the documentation 024 and/or other materials provided with the distribution. 025 026 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 027 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 028 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 029 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 030 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 031 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 032 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 033 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 034 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 035 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 036 */ 037 038 /** 039 * Marshals properties that have UTC offset values. 040 * @param <T> the property class 041 * @author Michael Angstadt 042 */ 043 public abstract class UtcOffsetPropertyMarshaller<T extends UtcOffsetProperty> extends ICalPropertyMarshaller<T> { 044 public UtcOffsetPropertyMarshaller(Class<T> clazz, String propertyName) { 045 super(clazz, propertyName, ICalDataType.UTC_OFFSET); 046 } 047 048 @Override 049 protected String _writeText(T property) { 050 UtcOffset offset = property.getOffset(); 051 if (offset != null) { 052 return offset.toString(false); 053 } 054 055 return ""; 056 } 057 058 @Override 059 protected T _parseText(String value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) { 060 value = unescape(value); 061 return parse(value); 062 } 063 064 @Override 065 protected void _writeXml(T property, XCalElement element) { 066 String offsetStr = null; 067 068 UtcOffset offset = property.getOffset(); 069 if (offset != null) { 070 offsetStr = offset.toString(true); 071 } 072 073 element.append(dataType(property), offsetStr); 074 } 075 076 @Override 077 protected T _parseXml(XCalElement element, ICalParameters parameters, List<String> warnings) { 078 String value = element.first(defaultDataType); 079 if (value != null) { 080 return parse(value); 081 } 082 083 throw missingXmlElements(defaultDataType); 084 } 085 086 @Override 087 protected JCalValue _writeJson(T property) { 088 UtcOffset offset = property.getOffset(); 089 if (offset != null) { 090 return JCalValue.single(offset.toString(true)); 091 } 092 093 return JCalValue.single(""); 094 } 095 096 @Override 097 protected T _parseJson(JCalValue value, ICalDataType dataType, ICalParameters parameters, List<String> warnings) { 098 return parse(value.asSingle()); 099 } 100 101 protected abstract T newInstance(UtcOffset offset); 102 103 private T parse(String value) { 104 if (value == null) { 105 return newInstance(null); 106 } 107 108 try { 109 return newInstance(UtcOffset.parse(value)); 110 } catch (IllegalArgumentException e) { 111 throw new CannotParseException("Could not parse offset string."); 112 } 113 } 114 }