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Java > Open Source Codes > net > sf > saxon > IdentityTransformer


1 package net.sf.saxon;
2 import net.sf.saxon.event.*;
3 import net.sf.saxon.trans.XPathException;
4 import org.xml.sax.SAXParseException JavaDoc;
5
6 import javax.xml.transform.Result JavaDoc;
7 import javax.xml.transform.Source JavaDoc;
8 import javax.xml.transform.TransformerException JavaDoc;
9
10 class IdentityTransformer extends Controller {
11
12     protected IdentityTransformer(Configuration config) {
13         super(config);
14     }
15
16     /**
17     * Perform identify transformation from Source to Result
18     */
19
20     public void transform(Source JavaDoc source, Result JavaDoc result)
21     throws TransformerException JavaDoc {
22         try {
23             PipelineConfiguration pipe = makePipelineConfiguration();
24             Receiver receiver = ResultWrapper.getReceiver(
25                     result, pipe, getOutputProperties());
26             NamespaceReducer reducer = new NamespaceReducer();
27             reducer.setUnderlyingReceiver(receiver);
28             new Sender(pipe).send(source, reducer, true);
29         } catch (XPathException err) {
30             Throwable JavaDoc cause = err.getException();
31             if (cause != null && cause instanceof SAXParseException JavaDoc) {
32                 // This generally means the error was already reported.
33 // But if a RuntimeException occurs in Saxon during a callback from
34 // the Crimson parser, Crimson wraps this in a SAXParseException without
35 // reporting it further.
36 SAXParseException JavaDoc spe = (SAXParseException JavaDoc)cause;
37                 cause = spe.getException();
38                 if (cause instanceof RuntimeException JavaDoc) {
39                     getErrorListener().fatalError(err);
40                 }
41             } else {
42                 getErrorListener().fatalError(err);
43             }
44             throw err;
45         }
46     }
47
48 }
49
50 //
51 // The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
52 // you may not use this file except in compliance with the License. You may obtain a copy of the
53 // License at http://www.mozilla.org/MPL/
54 //
55 // Software distributed under the License is distributed on an "AS IS" basis,
56 // WITHOUT WARRANTY OF ANY KIND, either express or implied.
57 // See the License for the specific language governing rights and limitations under the License.
58 //
59 // The Original Code is: all this file.
60 //
61 // The Initial Developer of the Original Code is Michael H. Kay
62 //
63 // Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
64 //
65 // Contributor(s): None
66 //
67
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