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1 package com.thaiopensource.validate.nrl;
2
3 import org.xml.sax.Attributes  ;
4
5 class FilteredAttributes implements Attributes {
6 private final Attributes attributes;
7 private final IntSet indexSet;
8 private int[] reverseIndexMap;
9
10 public FilteredAttributes(IntSet indexSet, Attributes attributes) {
11 this.indexSet = indexSet;
12 this.attributes = attributes;
13 }
14
15 private int reverseIndex(int k) {
16 if (reverseIndexMap == null) {
17 reverseIndexMap = new int[attributes.getLength()];
18 for (int i = 0, len = indexSet.size(); i < len; i++)
19 reverseIndexMap[indexSet.get(i)] = i + 1;
20 }
21 return reverseIndexMap[k] - 1;
22 }
23
24 public int getLength() {
25 return indexSet.size();
26 }
27
28 public String getURI(int index) {
29 if (index < 0 || index >= indexSet.size())
30 return null;
31 return attributes.getURI(indexSet.get(index));
32 }
33
34 public String getLocalName(int index) {
35 if (index < 0 || index >= indexSet.size())
36 return null;
37 return attributes.getLocalName(indexSet.get(index));
38 }
39
40 public String getQName(int index) {
41 if (index < 0 || index >= indexSet.size())
42 return null;
43 return attributes.getQName(indexSet.get(index));
44 }
45
46 public String getType(int index) {
47 if (index < 0 || index >= indexSet.size())
48 return null;
49 return attributes.getType(indexSet.get(index));
50 }
51
52 public String getValue(int index) {
53 if (index < 0 || index >= indexSet.size())
54 return null;
55 return attributes.getValue(indexSet.get(index));
56 }
57
58 public int getIndex(String uri, String localName) {
59 int n = attributes.getIndex(uri, localName);
60 if (n < 0)
61 return n;
62 return reverseIndex(n);
63 }
64
65 public int getIndex(String qName) {
66 int n = attributes.getIndex(qName);
67 if (n < 0)
68 return n;
69 return reverseIndex(n);
70 }
71
72 private int getRealIndex(String uri, String localName) {
73 int index = attributes.getIndex(uri, localName);
74 if (index < 0 || reverseIndex(index) < 0)
75 return -1;
76 return index;
77 }
78
79 private int getRealIndex(String qName) {
80 int index = attributes.getIndex(qName);
81 if (index < 0 || reverseIndex(index) < 0)
82 return -1;
83 return index;
84 }
85
86 public String getType(String uri, String localName) {
87 return attributes.getType(getRealIndex(uri, localName));
88 }
89
90 public String getValue(String uri, String localName) {
91 return attributes.getValue(getRealIndex(uri, localName));
92 }
93
94 public String getType(String qName) {
95 return attributes.getType(getRealIndex(qName));
96 }
97
98 public String getValue(String qName) {
99 return attributes.getValue(getRealIndex(qName));
100 }
101
102 }
103 |
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