blob: f6233f0dbe61e24499871eaf9eef82cd9088393b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*******************************************************************************
* Copyright (c) 2002-2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM - Initial API and implementation
*******************************************************************************/
package org.eclipse.wst.wsi.internal.core.xml;
import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Element;
import org.w3c.dom.Entity;
import org.w3c.dom.EntityReference;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.Notation;
import org.w3c.dom.ProcessingInstruction;
import org.w3c.dom.Text;
/**
* We don't have access to the node source code, so this does
* our double-dispatch the hard way.
*/
public abstract class XMLTraversal extends XMLVisitor
{
/**
* Returning false from action would terminates traversal.
* However, this always returns true. -- a no-op.
* @param n - an XML node.
* @return always true.
*/
public boolean action(Node n)
{
return true;
}
public void visit(CDATASection s)
{
action(s);
}
public void visit(Document e)
{
if (action(e))
{
// This does visit DocumentType, which is considered a child Node.
for (Node n = e.getFirstChild(); n != null; n = n.getNextSibling())
{
doVisit(n);
}
}
}
public void visit(DocumentType type)
{
if (action(type))
{
visit(type.getEntities());
visit(type.getNotations());
}
}
public void visit(Attr e)
{
action(e);
}
public void visit(Element node)
{
if (action(node))
{
visit(node.getAttributes());
for (Node n = node.getFirstChild(); n != null; n = n.getNextSibling())
{
doVisit(n);
}
}
}
public void visit(Comment e)
{
action(e);
}
public void visit(Text e)
{
action(e);
}
public void visit(EntityReference e)
{
action(e);
}
public void visit(Entity e)
{
action(e);
}
public void visit(Notation n)
{
action(n);
}
public void visit(ProcessingInstruction i)
{
action(i);
}
public void visit(NamedNodeMap map)
{
if (map != null)
{
for (int i = 0; i < map.getLength(); ++i)
{
doVisit(map.item(i));
}
}
}
}
// END OF FILE
|
