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1
3 package org.python.core;
4
5 import java.util.StringTokenizer  ;
6
7 public abstract class InternalTables {
8
9 static private InternalTables tryImpl(String id) {
14 try {
15 if(id.indexOf('.') < 0) {
16 boolean glue = true;
17 boolean front = true;
18 if (id.charAt(0) == '>') {
19 id = id.substring(1);
20 front = false;
21 } else if (id.charAt(id.length()-1)=='>') {
22 id = id.substring(0,id.length()-1);
23 } else if (!Character.isLowerCase(id.charAt(0))) glue = false;
24 if (glue) {
25 StringBuffer buf = new StringBuffer ("org.python.core.");
26 if (!front) buf.append("InternalTables");
27 if (Character.isLowerCase(id.charAt(0))) {
28 buf.append(Character.toUpperCase(id.charAt(0)));
29 buf.append(id.substring(1));
30 } else
31 buf.append(id);
32 if (front) buf.append("InternalTables");
33 id = buf.toString();
34 }
35 }
36 return (InternalTables)Class.forName(id).newInstance();
38 }
39 catch(Throwable e) {
40 return null;
42 }
43 }
44
45 static InternalTables createInternalTables() {
46 java.util.Properties registry = PySystemState.registry;
47 if (registry == null) {
48 throw new java.lang.IllegalStateException (
49 "Jython interpreter state not initialized. " +
50 "You need to call PySystemState.initialize or " +
51 "PythonInterpreter.initialize.");
52 }
53 String cands = registry.getProperty(
54 "python.options.internalTablesImpl");
55 if (cands == null) {
56 String version = System.getProperty("java.version");
57 if (version.compareTo("1.2") >= 0)
58 cands = ">2:>1";
59 else
60 cands = ">1";
61 } else
62 cands = cands + ":>2:>1";
63 StringTokenizer candEnum = new StringTokenizer (cands,":");
64 while (candEnum.hasMoreTokens()) {
65 InternalTables tbl = tryImpl(candEnum.nextToken().trim());
66 if (tbl != null) return tbl;
67 }
68 return null; }
70
71 protected abstract boolean queryCanonical(String name);
72 protected abstract PyJavaClass getCanonical(Class c);
73 protected abstract PyJavaClass getLazyCanonical(String name);
74
75 protected abstract void putCanonical(Class c, PyJavaClass canonical);
76 protected abstract void putLazyCanonical(String name,
77 PyJavaClass canonical);
78
79 protected abstract Class getAdapterClass(Class c);
80 protected abstract void putAdapterClass(Class c,Class ac);
81
82 protected abstract Object getAdapter(Object o,String evc);
83 protected abstract void putAdapter(Object o,String evc,Object ad);
84
85 public boolean _doesSomeAutoUnload() { return false; }
86
87 public void _forceCleanup() {}
88
89 public abstract void _beginCanonical();
90 public abstract void _beginLazyCanonical();
91
92 public abstract void _beginOverAdapterClasses();
93 public abstract void _beginOverAdapters();
94
95 public abstract Object _next();
96 public abstract void _flushCurrent();
97
98 public abstract void _flush(PyJavaClass jc);
99
100
101 static public class _LazyRep {
102 public String name;
103 public PackageManager mgr;
104
105 _LazyRep(String name, PackageManager mgr) {
106 this.name = name;
107 this.mgr = mgr;
108 }
109 }
110
111 }
112 |
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