|
1
17 package org.apache.excalibur.xml.sax;
18
19 import java.util.Enumeration  ;
20
21 import org.xml.sax.AttributeList ;
22 import org.xml.sax.ContentHandler ;
23 import org.xml.sax.DocumentHandler ;
24 import org.xml.sax.Locator ;
25 import org.xml.sax.SAXException ;
26 import org.xml.sax.helpers.AttributesImpl ;
27 import org.xml.sax.helpers.NamespaceSupport ;
28
29
36
37 public class ContentHandlerAdapter
38 implements DocumentHandler
39 {
40 private final static String XMLNS = "xmlns";
41 private final static String XMLNS_PREFIX = "xmlns:";
42
43 private final ContentHandler m_handler;
44 private final NamespaceSupport m_support = new NamespaceSupport ();
45
46 public ContentHandlerAdapter( final ContentHandler handler )
47 {
48 m_handler = handler;
49 }
50
51 public void setDocumentLocator( final Locator locator )
52 {
53 m_handler.setDocumentLocator( locator );
54 }
55
56 public void startDocument() throws SAXException
57 {
58 m_handler.startDocument();
59 }
60
61 public void endDocument() throws SAXException
62 {
63 m_handler.endDocument();
64 }
65
66 public void characters( final char ch[],
67 final int start,
68 final int length ) throws SAXException
69 {
70 m_handler.characters( ch, start, length );
71 }
72
73 public void ignorableWhitespace( final char ch[],
74 final int start,
75 final int length ) throws SAXException
76 {
77 m_handler.ignorableWhitespace( ch, start, length );
78 }
79
80 public void processingInstruction( final String target,
81 final String data ) throws SAXException
82 {
83 m_handler.processingInstruction( target, data );
84 }
85
86 public void startElement( final String name,
87 final AttributeList atts ) throws SAXException
88 {
89 m_support.pushContext();
90
91 for( int i = 0; i < atts.getLength(); i++ )
92 {
93 final String attributeName = atts.getName( i );
94 if( attributeName.startsWith( XMLNS_PREFIX ) )
95 {
96 m_support.declarePrefix( attributeName.substring( 6 ), atts.getValue( i ) );
97 }
98 else if( attributeName.equals( XMLNS ) )
99 {
100 m_support.declarePrefix( "", atts.getValue( i ) );
101 }
102 }
103
104 final AttributesImpl attributes = new AttributesImpl ();
105 for( int i = 0; i < atts.getLength(); i++ )
106 {
107 final String attributeName = atts.getName( i );
108 if( !attributeName.startsWith( XMLNS_PREFIX ) && !attributeName.equals( XMLNS ) )
109 {
110 final String [] parts = m_support.processName( attributeName, new String [ 3 ], true );
111 attributes.addAttribute( parts[ 0 ], parts[ 1 ], parts[ 2 ], atts.getType( i ), atts.getValue( i ) );
112 }
113 }
114
115 final Enumeration e = m_support.getDeclaredPrefixes();
116 while( e.hasMoreElements() )
117 {
118 final String prefix = (String )e.nextElement();
119 m_handler.startPrefixMapping( prefix, m_support.getURI( prefix ) );
120 }
121
122 final String [] parts = m_support.processName( name, new String [ 3 ], false );
123 m_handler.startElement( parts[ 0 ], parts[ 1 ], parts[ 2 ], attributes );
124 }
125
126 public void endElement( final String name ) throws SAXException
127 {
128 final String [] parts = m_support.processName( name, new String [ 3 ], false );
129 m_handler.endElement( parts[ 0 ], parts[ 1 ], parts[ 2 ] );
130
131 final Enumeration e = m_support.getDeclaredPrefixes();
132 while( e.hasMoreElements() )
133 {
134 final String prefix = (String )e.nextElement();
135 m_handler.endPrefixMapping( prefix );
136 }
137
138 m_support.popContext();
139 }
140 }
141 |
Popular Tags |
Java API By Example, From Geeks To Geeks.