1 | /* |
2 | * JTiger Unit Testing Framework for J2SE 1.5 |
3 | * Copyright (C) 2005 Tony Morris |
4 | * |
5 | * This software is licenced under the |
6 | * Common Public Licence version 1.0 |
7 | * http://www.opensource.org/licenses/cpl1.0.php |
8 | * |
9 | * You received a copy of this licence with this software. |
10 | */ |
11 | package org.jtiger.framework; |
12 | |
13 | import java.util.Arrays; |
14 | import java.util.Iterator; |
15 | import java.util.NoSuchElementException; |
16 | import java.util.List; |
17 | |
18 | /** |
19 | * Returns instances of {@link ReadOnlyArray} which are backed by a raw array that cannot be modified. |
20 | * |
21 | * @deprecated Use {@link SequenceFactory} instead. |
22 | * @see SequenceFactory |
23 | * @author %javadoc.author.tag% |
24 | * @version %version%<br/> |
25 | * <i>Build Number %build.number%</i><br/> |
26 | * <i>Build Time %build.time% CET (GMT + 1)</i> |
27 | */ |
28 | @Deprecated |
29 | public final class ReadOnlyArrayFactory |
30 | { |
31 | private ReadOnlyArrayFactory() |
32 | { |
33 | |
34 | } |
35 | |
36 | /** |
37 | * Returns a new instance of {@link ReadOnlyArray}. |
38 | * |
39 | * @deprecated Use {@link SequenceFactory#newSequence} instead. |
40 | * @param a The array that backs the returned {@link ReadOnlyArray}. |
41 | * @return A new instance of {@link ReadOnlyArray}. |
42 | * @throws NullPointerException If <code>a</code> is <code>null</code>. |
43 | */ |
44 | @Deprecated |
45 | public static <E> ReadOnlyArray<E> newReadOnlyArray(final E... a) throws NullPointerException |
46 | { |
47 | if(a == null) |
48 | { |
49 | throw new NullPointerException(); |
50 | } |
51 | |
52 | return new ReadOnlyArrayImpl<E>(a); |
53 | } |
54 | |
55 | /** |
56 | * Returns a new instance of {@link ReadOnlyArray}. |
57 | * |
58 | * @param l The {@link List} that backs the returned {@link ReadOnlyArray}. |
59 | * @return A new instance of {@link ReadOnlyArray}. |
60 | * @throws NullPointerException If <code>l</code> is <code>null</code>. |
61 | */ |
62 | public static <E> ReadOnlyArray<E> newReadOnlyArray(final List<E> l) throws NullPointerException |
63 | { |
64 | if(l == null) |
65 | { |
66 | throw new NullPointerException(); |
67 | } |
68 | |
69 | return new ListReadOnlyArray<E>(l); |
70 | } |
71 | |
72 | private static final class ReadOnlyArrayImpl<E> implements ReadOnlyArray<E> |
73 | { |
74 | private static final long serialVersionUID = 2L; |
75 | |
76 | private final E[] a; |
77 | |
78 | ReadOnlyArrayImpl(final E... a) |
79 | { |
80 | this.a = a; |
81 | } |
82 | |
83 | public E get(final int index) throws ArrayIndexOutOfBoundsException |
84 | { |
85 | if(index < 0 || index >= a.length) |
86 | { |
87 | throw new ArrayIndexOutOfBoundsException(index); |
88 | } |
89 | |
90 | return a[index]; |
91 | } |
92 | |
93 | public int length() |
94 | { |
95 | return a.length; |
96 | } |
97 | |
98 | public Iterator<E> iterator() |
99 | { |
100 | return new IteratorImpl(); |
101 | } |
102 | |
103 | @Override |
104 | public String toString() |
105 | { |
106 | return Arrays.toString(a); |
107 | } |
108 | |
109 | @Override |
110 | public boolean equals(final Object o) |
111 | { |
112 | if(this == o) |
113 | { |
114 | return true; |
115 | } |
116 | |
117 | if(o == null || o.getClass() != ReadOnlyArrayImpl.class) |
118 | { |
119 | return false; |
120 | } |
121 | |
122 | return Arrays.equals(((ReadOnlyArrayImpl)o).a, a); |
123 | } |
124 | |
125 | @Override |
126 | public int hashCode() |
127 | { |
128 | return Arrays.hashCode(a); |
129 | } |
130 | |
131 | public ReadOnlyArray<E> clone() |
132 | { |
133 | return new ReadOnlyArrayImpl<E>(a.clone()); |
134 | } |
135 | |
136 | private final class IteratorImpl implements Iterator<E> |
137 | { |
138 | private int counter; |
139 | |
140 | IteratorImpl() |
141 | { |
142 | |
143 | } |
144 | |
145 | public boolean hasNext() |
146 | { |
147 | return counter < a.length; |
148 | } |
149 | |
150 | public E next() |
151 | { |
152 | if(counter < a.length) |
153 | { |
154 | return a[counter++]; |
155 | } |
156 | else |
157 | { |
158 | throw new NoSuchElementException(); |
159 | } |
160 | } |
161 | |
162 | public void remove() |
163 | { |
164 | throw new UnsupportedOperationException(); |
165 | } |
166 | } |
167 | } |
168 | |
169 | private static final class ListReadOnlyArray<E> implements ReadOnlyArray<E> |
170 | { |
171 | private static final long serialVersionUID = 2L; |
172 | |
173 | private List<E> l; |
174 | |
175 | ListReadOnlyArray(final List<E> l) |
176 | { |
177 | this.l = l; |
178 | } |
179 | |
180 | public E get(final int index) throws ArrayIndexOutOfBoundsException |
181 | { |
182 | if(index < 0 || index >= l.size()) |
183 | { |
184 | throw new ArrayIndexOutOfBoundsException(index); |
185 | } |
186 | |
187 | return l.get(index); |
188 | } |
189 | |
190 | public int length() |
191 | { |
192 | return l.size(); |
193 | } |
194 | |
195 | public ReadOnlyArray<E> clone() |
196 | { |
197 | return newReadOnlyArray(l); |
198 | } |
199 | |
200 | public Iterator<E> iterator() |
201 | { |
202 | return l.iterator(); |
203 | } |
204 | |
205 | @Override |
206 | public String toString() |
207 | { |
208 | return Arrays.toString(l.toArray()); |
209 | } |
210 | |
211 | @Override |
212 | public boolean equals(final Object o) |
213 | { |
214 | if(this == o) |
215 | { |
216 | return true; |
217 | } |
218 | |
219 | if(o == null || o.getClass() != ListReadOnlyArray.class) |
220 | { |
221 | return false; |
222 | } |
223 | |
224 | return ((ListReadOnlyArray)o).l.equals(l); |
225 | } |
226 | |
227 | @Override |
228 | public int hashCode() |
229 | { |
230 | return l.hashCode(); |
231 | } |
232 | } |
233 | } |