1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
|
20 | |
|
21 | |
package org.apache.tiles.request.collection; |
22 | |
|
23 | |
import static org.apache.tiles.request.collection.CollectionUtil.*; |
24 | |
|
25 | |
import java.util.ArrayList; |
26 | |
import java.util.Collection; |
27 | |
import java.util.Enumeration; |
28 | |
import java.util.Iterator; |
29 | |
import java.util.List; |
30 | |
import java.util.Set; |
31 | |
|
32 | |
import org.apache.tiles.request.attribute.HasKeys; |
33 | |
|
34 | |
|
35 | |
|
36 | |
|
37 | |
|
38 | |
|
39 | 3 | public class KeySet implements Set<String> { |
40 | |
|
41 | |
|
42 | |
|
43 | |
|
44 | |
private HasKeys<?> request; |
45 | |
|
46 | |
|
47 | |
|
48 | |
|
49 | |
|
50 | |
|
51 | 24 | public KeySet(HasKeys<?> request) { |
52 | 24 | this.request = request; |
53 | 24 | } |
54 | |
|
55 | |
@Override |
56 | |
public boolean add(String e) { |
57 | 1 | throw new UnsupportedOperationException(); |
58 | |
} |
59 | |
|
60 | |
@Override |
61 | |
public boolean addAll(Collection<? extends String> c) { |
62 | 1 | throw new UnsupportedOperationException(); |
63 | |
} |
64 | |
|
65 | |
@Override |
66 | |
public void clear() { |
67 | 1 | throw new UnsupportedOperationException(); |
68 | |
} |
69 | |
|
70 | |
@Override |
71 | |
public boolean contains(Object o) { |
72 | 2 | return request.getValue(key(o)) != null; |
73 | |
} |
74 | |
|
75 | |
@SuppressWarnings("unchecked") |
76 | |
@Override |
77 | |
public boolean containsAll(Collection<?> c) { |
78 | 2 | Collection<String> realCollection = (Collection<String>) c; |
79 | 2 | for (String key : realCollection) { |
80 | 4 | if (request.getValue(key(key)) == null) { |
81 | 1 | return false; |
82 | |
} |
83 | 3 | } |
84 | 1 | return true; |
85 | |
} |
86 | |
|
87 | |
@Override |
88 | |
public boolean isEmpty() { |
89 | 2 | return !request.getKeys().hasMoreElements(); |
90 | |
} |
91 | |
|
92 | |
@Override |
93 | |
public Iterator<String> iterator() { |
94 | 2 | return new KeySetIterator(); |
95 | |
} |
96 | |
|
97 | |
@Override |
98 | |
public boolean remove(Object o) { |
99 | 1 | throw new UnsupportedOperationException(); |
100 | |
} |
101 | |
|
102 | |
@Override |
103 | |
public boolean removeAll(Collection<?> c) { |
104 | 1 | throw new UnsupportedOperationException(); |
105 | |
} |
106 | |
|
107 | |
@Override |
108 | |
public boolean retainAll(Collection<?> c) { |
109 | 1 | throw new UnsupportedOperationException(); |
110 | |
} |
111 | |
|
112 | |
@Override |
113 | |
public int size() { |
114 | 1 | return enumerationSize(request.getKeys()); |
115 | |
} |
116 | |
|
117 | |
@Override |
118 | |
public Object[] toArray() { |
119 | 1 | return toList().toArray(); |
120 | |
} |
121 | |
|
122 | |
@Override |
123 | |
public <T> T[] toArray(T[] a) { |
124 | 1 | return toList().toArray(a); |
125 | |
} |
126 | |
|
127 | |
|
128 | |
|
129 | |
|
130 | |
|
131 | |
|
132 | |
private List<String> toList() { |
133 | 2 | List<String> entries = new ArrayList<String>(); |
134 | 2 | Enumeration<String> names = request.getKeys(); |
135 | 6 | while (names.hasMoreElements()) { |
136 | 4 | entries.add(names.nextElement()); |
137 | |
} |
138 | 2 | return entries; |
139 | |
} |
140 | |
|
141 | |
|
142 | |
|
143 | |
|
144 | 5 | private class KeySetIterator implements Iterator<String> { |
145 | |
|
146 | |
|
147 | |
|
148 | |
|
149 | 2 | private Enumeration<String> namesEnumeration = request.getKeys(); |
150 | |
|
151 | |
@Override |
152 | |
public boolean hasNext() { |
153 | 1 | return namesEnumeration.hasMoreElements(); |
154 | |
} |
155 | |
|
156 | |
@Override |
157 | |
public String next() { |
158 | 1 | return namesEnumeration.nextElement(); |
159 | |
} |
160 | |
|
161 | |
@Override |
162 | |
public void remove() { |
163 | 1 | throw new UnsupportedOperationException(); |
164 | |
} |
165 | |
} |
166 | |
} |