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1 package com.thaiopensource.validate.mns;
2
3 import org.xml.sax.Attributes  ;
4
5 class NamespaceFilteredAttributes implements Attributes {
6 private final String ns;
7 private final boolean keepLocal;
8 private final Attributes attributes;
9 private final int[] indexMap;
10 private final int[] reverseIndexMap;
11
12 public NamespaceFilteredAttributes(String ns, boolean keepLocal, Attributes attributes) {
13 this.ns = ns;
14 this.keepLocal = keepLocal;
15 this.attributes = attributes;
16 int n = 0;
17 for (int i = 0, len = attributes.getLength(); i < len; i++)
18 if (keepAttribute(attributes.getURI(i)))
19 n++;
20 indexMap = new int[n];
21 reverseIndexMap = new int[attributes.getLength()];
22 n = 0;
23 for (int i = 0, len = attributes.getLength(); i < len; i++) {
24 if (keepAttribute(attributes.getURI(i))) {
25 reverseIndexMap[i] = n;
26 indexMap[n++] = i;
27 }
28 else
29 reverseIndexMap[i] = -1;
30 }
31 }
32
33 private boolean keepAttribute(String uri) {
34 return uri.equals(ns) || (keepLocal && uri.equals(""));
35 }
36
37 public int getLength() {
38 return indexMap.length;
39 }
40
41 public String getURI(int index) {
42 if (index < 0 || index >= indexMap.length)
43 return null;
44 return attributes.getURI(indexMap[index]);
45 }
46
47 public String getLocalName(int index) {
48 if (index < 0 || index >= indexMap.length)
49 return null;
50 return attributes.getLocalName(indexMap[index]);
51 }
52
53 public String getQName(int index) {
54 if (index < 0 || index >= indexMap.length)
55 return null;
56 return attributes.getQName(indexMap[index]);
57 }
58
59 public String getType(int index) {
60 if (index < 0 || index >= indexMap.length)
61 return null;
62 return attributes.getType(indexMap[index]);
63 }
64
65 public String getValue(int index) {
66 if (index < 0 || index >= indexMap.length)
67 return null;
68 return attributes.getValue(indexMap[index]);
69 }
70
71 public int getIndex(String uri, String localName) {
72 int n = attributes.getIndex(uri, localName);
73 if (n < 0)
74 return n;
75 return reverseIndexMap[n];
76 }
77
78 public int getIndex(String qName) {
79 int n = attributes.getIndex(qName);
80 if (n < 0)
81 return n;
82 return reverseIndexMap[n];
83 }
84
85 public String getType(String uri, String localName) {
86 if (keepAttribute(uri))
87 return attributes.getType(uri, localName);
88 return null;
89 }
90
91 public String getValue(String uri, String localName) {
92 if (keepAttribute(uri))
93 return attributes.getValue(uri, localName);
94 return null;
95 }
96
97 public String getType(String qName) {
98 int i = getIndex(qName);
99 if (i < 0)
100 return null;
101 return getType(i);
102 }
103
104 public String getValue(String qName) {
105 int i = getIndex(qName);
106 if (i < 0)
107 return null;
108 return getValue(i);
109 }
110 }
111 |
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