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comparison: src/net/fortuna/ical4j/model/TextList.java
src/net/fortuna/ical4j/model/TextList.java
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| 1 /** | |
| 2 * Copyright (c) 2012, Ben Fortuna | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * o Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * o Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * o Neither the name of Ben Fortuna nor the names of any other contributors | |
| 17 * may be used to endorse or promote products derived from this software | |
| 18 * without specific prior written permission. | |
| 19 * | |
| 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 31 */ | |
| 32 package net.fortuna.ical4j.model; | |
| 33 | |
| 34 import java.io.Serializable; | |
| 35 import java.util.Arrays; | |
| 36 import java.util.Iterator; | |
| 37 import java.util.List; | |
| 38 import java.util.regex.Matcher; | |
| 39 import java.util.regex.Pattern; | |
| 40 | |
| 41 import edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList; | |
| 42 | |
| 43 import net.fortuna.ical4j.util.Strings; | |
| 44 | |
| 45 /** | |
| 46 * $Id$ [23-Apr-2004] | |
| 47 * | |
| 48 * Defines a list of iCalendar text elements. | |
| 49 * @author Ben Fortuna | |
| 50 */ | |
| 51 public class TextList implements Serializable { | |
| 52 | |
| 53 private static final long serialVersionUID = -417427815871330636L; | |
| 54 | |
| 55 private List texts; | |
| 56 | |
| 57 /** | |
| 58 * Default constructor. | |
| 59 */ | |
| 60 public TextList() { | |
| 61 texts = new CopyOnWriteArrayList(); | |
| 62 } | |
| 63 | |
| 64 /** | |
| 65 * Parses the specified string representation to create a list of categories. | |
| 66 * @param aValue a string representation of a list of categories | |
| 67 */ | |
| 68 public TextList(final String aValue) { | |
| 69 texts = new CopyOnWriteArrayList(); | |
| 70 | |
| 71 // match commas preceded by even number of backslashes.. | |
| 72 final Pattern pattern = Pattern.compile("([^\\\\](?:\\\\{2})),|([^\\\\]),"); | |
| 73 | |
| 74 final Matcher matcher = pattern.matcher(aValue); | |
| 75 String[] textValues = null; | |
| 76 | |
| 77 if (matcher.find()) { | |
| 78 // HACK: add a marker (") for easy string splitting.. | |
| 79 textValues = matcher.replaceAll("$1$2"").split("""); | |
| 80 } | |
| 81 else { | |
| 82 // no special cases, split on commas not preceded by backslash.. | |
| 83 textValues = aValue.split("(?<!\\\\),"); | |
| 84 } | |
| 85 | |
| 86 for (int i = 0; i < textValues.length; i++) { | |
| 87 texts.add(Strings.unescape(textValues[i])); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 /** | |
| 92 * @param textValues an array of text values | |
| 93 */ | |
| 94 public TextList(String[] textValues) { | |
| 95 texts = Arrays.asList(textValues); | |
| 96 } | |
| 97 | |
| 98 /** | |
| 99 * {@inheritDoc} | |
| 100 */ | |
| 101 public final String toString() { | |
| 102 final StringBuffer b = new StringBuffer(); | |
| 103 for (final Iterator i = texts.iterator(); i.hasNext();) { | |
| 104 b.append(Strings.escape((String) i.next())); | |
| 105 if (i.hasNext()) { | |
| 106 b.append(','); | |
| 107 } | |
| 108 } | |
| 109 return b.toString(); | |
| 110 } | |
| 111 | |
| 112 /** | |
| 113 * Add an address to the list. | |
| 114 * @param text the category to add | |
| 115 * @return true | |
| 116 * @see List#add(java.lang.Object) | |
| 117 */ | |
| 118 public final boolean add(final String text) { | |
| 119 return texts.add(text); | |
| 120 } | |
| 121 | |
| 122 /** | |
| 123 * @return boolean indicates if the list is empty | |
| 124 * @see List#isEmpty() | |
| 125 */ | |
| 126 public final boolean isEmpty() { | |
| 127 return texts.isEmpty(); | |
| 128 } | |
| 129 | |
| 130 /** | |
| 131 * @return an iterator | |
| 132 * @see List#iterator() | |
| 133 */ | |
| 134 public final Iterator iterator() { | |
| 135 return texts.iterator(); | |
| 136 } | |
| 137 | |
| 138 /** | |
| 139 * Remove a text from the list. | |
| 140 * @param text the text element to remove | |
| 141 * @return true if the list contained the specified text element | |
| 142 * @see List#remove(java.lang.Object) | |
| 143 */ | |
| 144 public final boolean remove(final String text) { | |
| 145 return texts.remove(text); | |
| 146 } | |
| 147 | |
| 148 /** | |
| 149 * @return the number of text elements in the list | |
| 150 * @see List#size() | |
| 151 */ | |
| 152 public final int size() { | |
| 153 return texts.size(); | |
| 154 } | |
| 155 } |
