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1
32 package net.sf.retrotranslator.runtime.java.lang;
33
34 import net.sf.retrotranslator.runtime.impl.Advanced;
35 import java.util.*;
36
37
40 @Advanced
41 public class InheritableThreadLocal_ extends ThreadLocal_ {
42
43 private class Key {
44 public InheritableThreadLocal_ get() {
45 return InheritableThreadLocal_.this;
46 }
47 }
48
49 private static class Container extends InheritableThreadLocal  <Map<Key, Object >> {
50
51 protected Map<Key, Object > initialValue() {
52 return new WeakHashMap<Key, Object >();
53 }
54
55 protected Map<Key, Object > childValue(Map<Key, Object > parentValue) {
56 WeakHashMap<Key, Object > result = new WeakHashMap<Key, Object >(parentValue.size() * 2);
57 for (Map.Entry<Key, Object > entry : parentValue.entrySet()) {
58 Key key = entry.getKey();
59 result.put(key, key.get().childValue(entry.getValue()));
60 }
61 return result;
62 }
63 }
64
65 private static final Container container = new Container();
66
67 private final Key key = new Key();
68
69 public InheritableThreadLocal_() {
70 }
71
72 public Object get() {
73 Map<Key, Object > map = container.get();
74 Object value = map.get(key);
75 if (value == null && !map.containsKey(key)) {
76 map.put(key, value = initialValue());
77 }
78 return value;
79 }
80
81 public void set(Object value) {
82 container.get().put(key, value);
83 }
84
85 public void remove() {
86 container.get().remove(key);
87 }
88
89 protected Object childValue(Object parentValue) {
90 return parentValue;
91 }
92
93 }
94 |
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