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1
58
59 package org.oddjob.arooa.xml;
60
61 import java.io.IOException  ;
62 import java.io.UnsupportedEncodingException ;
63
64 import org.oddjob.arooa.ArooaException;
65 import org.oddjob.arooa.ArooaHandler;
66 import org.oddjob.arooa.ArooaContext;
67 import org.oddjob.arooa.Location;
68 import org.oddjob.arooa.RootHandler;
69 import org.xml.sax.InputSource ;
70 import org.xml.sax.SAXException ;
71 import org.xml.sax.SAXParseException ;
72 import org.xml.sax.XMLReader ;
73 import org.xml.sax.helpers.DefaultHandler ;
74
75
80 public class XMLDefinitionHelper {
81
82 private final ArooaContext context;
83
84 public XMLDefinitionHelper(ArooaContext context) {
85 this.context = context;
86 }
87
88
96 public void parse(InputSource inputSource, ArooaHandler mainHandler)
97 throws ArooaException {
98
99 RootHandler handler = new RootHandler(context, mainHandler);
100
101 try {
102
105 XMLReader parser = JAXPUtils.getNamespaceXMLReader();
106
107 DefaultHandler hb = handler;
108
109 parser.setContentHandler(hb);
110 parser.setEntityResolver(hb);
111 parser.setErrorHandler(hb);
112 parser.setDTDHandler(hb);
113 parser.parse(inputSource);
114 } catch (SAXParseException exc) {
115 Location location = new Location(exc.getSystemId(),
116 exc.getLineNumber(), exc.getColumnNumber());
117
118 Throwable t = exc.getException();
119 if (t == null) {
120 throw new ArooaException(exc.getMessage(), exc, location);
121 }
122 if (t instanceof ArooaException) {
123 ArooaException be = (ArooaException) t;
124 if (be.getLocation() == Location.UNKNOWN_LOCATION) {
125 be.setLocation(location);
126 }
127 throw be;
128 }
129 throw new ArooaException(exc.getMessage(), t, location);
130 } catch (SAXException exc) {
131 Throwable t = exc.getException();
132 if (t instanceof ArooaException) {
133 throw (ArooaException) t;
134 }
135 throw new ArooaException(exc.getMessage(), t);
136 } catch (UnsupportedEncodingException exc) {
137 throw new ArooaException("Encoding of input is invalid.",
138 exc);
139 } catch (IOException exc) {
140 throw new ArooaException("Error reading input.",
141 exc);
142 }
143 }
144 }
145 |
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