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1 package com.thaiopensource.validate.mns;
2
3 import com.thaiopensource.xml.util.Name;
4
5 import java.util.Vector  ;
6 import java.util.Hashtable ;
7
8 class ContextMap {
9 private Object rootValue;
10 private Object otherValue;
11 private final Hashtable nameTable = new Hashtable ();
12
13 Object get(Vector context) {
14 return get(context, context.size());
15 }
16
17 boolean put(boolean isRoot, Vector names, Object value) {
18 return put(isRoot, names, names.size(), value);
19 }
20
21 private Object get(Vector context, int len) {
22 if (len > 0) {
23 ContextMap nestedMap = (ContextMap)nameTable.get(context.elementAt(len - 1));
24 if (nestedMap != null) {
25 Object value = nestedMap.get(context, len - 1);
26 if (value != null)
27 return value;
28 }
29 }
30 if (rootValue != null && len == 0)
31 return rootValue;
32 return otherValue;
33 }
34
35 private boolean put(boolean isRoot, Vector names, int len, Object value) {
36 if (len == 0) {
37 if (isRoot) {
38 if (rootValue != null)
39 return false;
40 rootValue = value;
41 }
42 else {
43 if (otherValue != null)
44 return false;
45 otherValue = value;
46 }
47 return true;
48 }
49 else {
50 Name name = (Name)names.elementAt(len - 1);
51 ContextMap nestedMap = (ContextMap)nameTable.get(name);
52 if (nestedMap == null) {
53 nestedMap = new ContextMap();
54 nameTable.put(name, nestedMap);
55 }
56 return nestedMap.put(isRoot, names, len - 1, value);
57 }
58 }
59 }
60 |
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