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1
3 package org.python.core;
4
5 import java.util.*;
6 import java.lang.ref.*;
7
8 public class InternalTables2 extends InternalTables1 {
9
10 protected static class TableProvid2 extends HashMap implements Table {
11 }
12
13 protected void commitTemp() {
14 ((TableProvid2)classes).putAll((TableProvid2)temp);
15 temp.clear();
16 }
17
18 protected WeakHashMap adapters;
19
20 protected Object  getAdapter(Object o,String evc) {
21 HashMap ads = (HashMap)adapters.get(o);
22 if (ads == null) return null;
23 WeakReference adw = (WeakReference) ads.get(evc);
24 if (adw == null) return null;
25 return adw.get();
26 }
27
28 protected void putAdapter(Object o,String evc,Object ad) {
29 HashMap ads = (HashMap)adapters.get(o);
30 if (ads == null) {
31 ads = new HashMap();
32 adapters.put(o,ads);
33 }
34 ads.put(evc,new WeakReference(ad));
35 }
36
37 protected Iterator iter;
38 protected Iterator grand;
39
40 public void _beginCanonical() {
41 beginStable(JCSTABLE);
42 iter = ((TableProvid2)classes).values().iterator();
43 iterType = JCLASS;
44 }
45
46 public void _beginLazyCanonical() {
47 beginStable(GSTABLE);
48 iter = ((TableProvid2)lazyClasses).values().iterator();
49 iterType = LAZY_JCLASS;
50 }
51
52 public void _beginOverAdapterClasses() {
53 beginStable(GSTABLE);
54 iter = ((TableProvid2)adapterClasses).entrySet().iterator();
55 iterType = ADAPTER_CLASS;
56
57 }
58
59 public void _beginOverAdapters() {
60 beginStable((short)0);
61 grand = adapters.values().iterator();
62 iter = null;
63 iterType = ADAPTER;
64 }
65
66 public Object _next() {
67 if (iterType == ADAPTER) {
68 for(;;) {
69 if (iter==null || !iter.hasNext() ) {
70 if (grand.hasNext()) {
71 cur = grand.next();
72 iter = ((HashMap)cur).values().iterator();
73 } else iter = null;
74 }
75 if (iter != null) {
76 WeakReference adw = (WeakReference)iter.next();
77 Object ad = adw.get();
78 if (ad != null) return ad.getClass().getInterfaces()[0];
79 else continue;
80 }
81 grand = null;
82 break;
83 }
84 }
85 else if (iter.hasNext()) {
86 cur = iter.next();
87 switch(iterType) {
88 case JCLASS:
89 return (PyJavaClass)cur;
90 case LAZY_JCLASS:
91 PyJavaClass lazy = (PyJavaClass)cur;
92 return new _LazyRep(lazy.__name__,lazy.__mgr__);
93 case ADAPTER_CLASS:
94 Map.Entry entry = (Map.Entry)cur;
95 return entry.getKey();
96 }
97 }
98 cur = null;
99 endStable();
100 iter = null;
101 return null;
102 }
103
104 public void _flushCurrent() {
105 iter.remove();
106 switch(iterType) {
107 case JCLASS:
108 classesDec(((PyJavaClass)cur).__name__);
109 break;
110 case ADAPTER:
111 if (((HashMap)cur).size() == 0) grand.remove();
112 }
113 }
114
115 public InternalTables2() {
116 super(true);
117
118 classes = new TableProvid2();
119 temp = new TableProvid2();
120 counters = new TableProvid2();
121 lazyClasses = new TableProvid2();
122
123 adapterClasses = new TableProvid2();
124
125 adapters = new WeakHashMap();
126 }
127 } |
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