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src/net/fortuna/ical4j/model/NumberList.java@45d57ecba757
src/net/fortuna/ical4j/model/NumberList.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
- parent 0
- fb9019fb1bf7
- permissions
- -rw-r--r--
Upgrade the upgraded ical4j component to use org.apache.commons.lang3.
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;
34 import java.io.Serializable;
35 import java.util.ArrayList;
36 import java.util.Iterator;
37 import java.util.StringTokenizer;
39 import net.fortuna.ical4j.util.Numbers;
41 /**
42 * $Id$ [29-May-2004]
43 *
44 * Defines a list of numbers.
45 *
46 * @author Ben Fortuna
47 */
48 public class NumberList extends ArrayList implements Serializable {
50 private static final long serialVersionUID = -1667481795613729889L;
52 private final int minValue;
54 private final int maxValue;
56 private final boolean allowsNegativeValues;
58 /**
59 * Default constructor.
60 */
61 public NumberList() {
62 this(Integer.MIN_VALUE, Integer.MAX_VALUE, true);
63 }
65 /**
66 * Constructor with limits.
67 * @param minValue the minimum allowable value
68 * @param maxValue the maximum allowable value
69 * @param allowsNegativeValues indicates whether negative values are allowed
70 */
71 public NumberList(int minValue, int maxValue, boolean allowsNegativeValues) {
72 this.minValue = minValue;
73 this.maxValue = maxValue;
74 this.allowsNegativeValues = allowsNegativeValues;
75 }
77 /**
78 * Constructor.
79 * @param aString a string representation of a number list
80 */
81 public NumberList(final String aString) {
82 this(aString, Integer.MIN_VALUE, Integer.MAX_VALUE, true);
83 }
85 /**
86 * @param aString a string representation of a number list
87 * @param minValue the minimum allowable value
88 * @param maxValue the maximum allowable value
89 * @param allowsNegativeValues indicates whether negative values are allowed
90 */
91 public NumberList(final String aString, int minValue, int maxValue, boolean allowsNegativeValues) {
92 this(minValue, maxValue, allowsNegativeValues);
93 final StringTokenizer t = new StringTokenizer(aString, ",");
94 while (t.hasMoreTokens()) {
95 final int value = Numbers.parseInt(t.nextToken());
96 add(new Integer(value));
97 }
98 }
100 /**
101 * @param aNumber a number to add to the list
102 * @return true if the number was added, otherwise false
103 */
104 public final boolean add(final Integer aNumber) {
105 int abs = aNumber.intValue();
106 if ((abs >> 31 | -abs >>> 31) < 0) {
107 if (!allowsNegativeValues) {
108 throw new IllegalArgumentException("Negative value not allowed: " + aNumber);
109 }
110 abs = Math.abs(abs);
111 }
112 if (abs < minValue || abs > maxValue) {
113 throw new IllegalArgumentException(
114 "Value not in range [" + minValue + ".." + maxValue + "]: " + aNumber);
115 }
116 return add((Object) aNumber);
117 }
119 /**
120 * Overrides superclass to throw an <code>IllegalArgumentException</code>
121 * where argument is not a <code>java.lang.Integer</code>.
122 * @param arg0 an object to add
123 * @return true if the object was added, otherwise false
124 * @see java.util.List#add(Object)
125 */
126 public final boolean add(final Object arg0) {
127 if (!(arg0 instanceof Integer)) {
128 throw new IllegalArgumentException("Argument not a " + Integer.class.getName());
129 }
130 return super.add(arg0);
131 }
133 /**
134 * @param aNumber a number to remove from the list
135 * @return true if the number was removed, otherwise false
136 */
137 public final boolean remove(final Integer aNumber) {
138 return remove((Object) aNumber);
139 }
141 /**
142 * {@inheritDoc}
143 */
144 public final String toString() {
145 final StringBuffer b = new StringBuffer();
146 for (final Iterator i = iterator(); i.hasNext();) {
147 b.append(i.next());
148 if (i.hasNext()) {
149 b.append(',');
150 }
151 }
152 return b.toString();
153 }
154 }
