src/net/fortuna/ical4j/model/TextList.java

Tue, 10 Feb 2015 19:58:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 10 Feb 2015 19:58:00 +0100
changeset 4
45d57ecba757
permissions
-rw-r--r--

Upgrade the upgraded ical4j component to use org.apache.commons.lang3.

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

mercurial