|
1
4 package com.tcclient.util;
5
6 import com.tc.object.bytecode.ManagerUtil;
7
8 import java.lang.reflect.Array  ;
9 import java.util.Collection ;
10 import java.util.Iterator ;
11 import java.util.Map ;
12 import java.util.Set ;
13 import java.util.Map.Entry;
14
15
18 public class ConcurrentHashMapEntrySetWrapper implements Set {
19 public final static String CLASS_SLASH = "com/tc/util/ConcurrentHashMapEntrySetWrapper";
20
21 protected final Set realEntrySet;
22 protected final Map map;
23
24 public ConcurrentHashMapEntrySetWrapper(Map map, Set realEntrySet) {
25 this.realEntrySet = realEntrySet;
26 this.map = map;
27 }
28
29 public final boolean add(Object o) {
30 return realEntrySet.add(o);
31 }
32
33 public final boolean addAll(Collection c) {
34 return realEntrySet.addAll(c);
35 }
36
37 public final void clear() {
38 realEntrySet.clear();
39 }
40
41 public final boolean contains(Object o) {
42 return realEntrySet.contains(o);
43 }
44
45 public final boolean containsAll(Collection c) {
46 return realEntrySet.containsAll(c);
47 }
48
49 public final boolean equals(Object o) {
50 return realEntrySet.equals(o);
51 }
52
53 public final int hashCode() {
54 return realEntrySet.hashCode();
55 }
56
57 public final boolean isEmpty() {
58 return realEntrySet.isEmpty();
59 }
60
61 public Iterator iterator() {
62 return new IteratorWrapper(map, realEntrySet.iterator());
63 }
64
65 public boolean remove(Object o) {
66 return realEntrySet.remove(o);
67 }
68
69 public final boolean removeAll(Collection c) {
70 return realEntrySet.removeAll(c);
71 }
72
73 public final boolean retainAll(Collection c) {
74 return realEntrySet.retainAll(c);
75 }
76
77 public final int size() {
78 return realEntrySet.size();
79 }
80
81 public final Object [] toArray() {
82 return realEntrySet.toArray();
83 }
84
85 public final Object [] toArray(Object [] a) {
86 int size = size();
87 if (a.length < size) a = (Object []) Array.newInstance(((Object ) (a)).getClass().getComponentType(), size);
88
89 int index = 0;
90 for (Iterator iterator = iterator(); iterator.hasNext();) {
91 ManagerUtil.objectArrayChanged(a, index++, iterator.next());
92 }
93
94 if (a.length > size) {
95 a[size] = null;
96 }
97 return a;
98 }
99
100 private static class IteratorWrapper implements Iterator {
101
102 protected final Iterator realIterator;
103 protected final Map map;
104
105 IteratorWrapper(Map map, Iterator realIterator) {
106 this.map = map;
107 this.realIterator = realIterator;
108 }
109
110 public void remove() {
111 realIterator.remove();
112 }
113
114 public final boolean hasNext() {
115 boolean rv = realIterator.hasNext();
116 return rv;
117 }
118
119 public final Object next() {
120 return new EntryWrapper(map, (Entry) realIterator.next());
121 }
122
123 }
124
125 protected static class EntryWrapper implements Entry {
126 private final Object key;
127 private Object value;
128 private final Map map;
129
130 EntryWrapper(Map map, Entry entry) {
131 this.map = map;
132 this.key = entry.getKey();
133 this.value = entry.getValue();
134 }
135
136 public final boolean equals(Object o) {
137 if (!(o instanceof Entry)) { return false; }
138 Entry e2 = (Entry) o;
139 return (key == null ? e2.getKey() == null : key.equals(e2.getKey()))
140 && (value == null ? e2.getValue() == null : value.equals(e2.getValue()));
141 }
142
143 public final Object getKey() {
144 return key;
145 }
146
147 public final Object getValue() {
148 return value;
149 }
150
151 public final int hashCode() {
152 return (key == null ? 0 : key.hashCode()) ^ (value == null ? 0 : value.hashCode());
153 }
154
155 public final Object setValue(Object value) {
156 Object rv = map.put(this.key, value);
157 this.value = value;
158 return rv;
159 }
160
161 public String toString() {
162 return key + "=" + value;
163 }
164 }
165
166 }
167 |
Popular Tags |
Java API By Example, From Geeks To Geeks.