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14 package org.eclipse.jetty.webapp;
15
16 import java.net.URL;
17
18 import org.eclipse.jetty.util.resource.Resource;
19 import org.eclipse.jetty.xml.XmlParser;
20
21 public abstract class Descriptor
22 {
23 protected Resource _xml;
24 protected XmlParser.Node _root;
25 protected XmlParser _parser;
26 protected boolean _validating;
27
28 public Descriptor (Resource xml)
29 {
30 _xml = xml;
31 }
32
33 public abstract XmlParser newParser()
34 throws ClassNotFoundException;
35
36 public abstract void ensureParser()
37 throws ClassNotFoundException;
38
39 protected void redirect(XmlParser parser, String resource, URL source)
40 {
41 if (source != null) parser.redirectEntity(resource, source);
42 }
43
44
45 public void setValidating (boolean validating)
46 {
47 _validating = validating;
48 }
49
50 public void parse ()
51 throws Exception
52 {
53 if (_parser == null)
54 ensureParser();
55
56 if (_root == null)
57 {
58
59
60 _root = _parser.parse(_xml.getURL().toString());
61
62 }
63 }
64
65 public Resource getResource ()
66 {
67 return _xml;
68 }
69
70 public XmlParser.Node getRoot ()
71 {
72 return _root;
73 }
74 }