Caching of documents (loaded with the document() function) does not work when
URI is relative
---------------------------------------------------------------------------------------------
Key: XALANJ-2429
URL: https://issues.apache.org/jira/browse/XALANJ-2429
Project: XalanJ2
Issue Type: Bug
Components: XSLTC
Reporter: Erin Harris
The XSLTC processor caches documents based on their absolute URI but
if there is a URIResolver and a relative URI was specified in
the call to document() then the cached version will not be found.
Using the test case below the output shows that
there are two document loads (the message from the URIResolver appears
twice):
Loading: test_2.xml
Loading: test_2.xml
<?xml version="1.0" encoding="UTF-8"?><out>
test_2.xml
test_2.xml
</out>
However if the value of the doc variable in test.xsl is changed to an
absolute path (such as 'd:/test/xslt/test_2.xml') then the output shows
that there is only one load (the message from the URIResolver only appears
once):
Loading: d:/test/xslt/test_2.xml
<?xml version="1.0" encoding="UTF-8"?><out>
test_2.xml
test_2.xml
</out>
This is because the document is cached using the relative URI but retrieved
using the absolute URI.
MyTransform.java
----------------
// Imported TraX classes
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.ErrorListener;
import javax.xml.transform.Source;
import javax.xml.transform.URIResolver;
// Imported java classes
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class MyTransform
{
public static void main(String[] args) throws TransformerException,
TransformerConfigurationException, FileNotFoundException, IOException
{
if (args.length < 2) {
System.out.println("Usage: SimpleTransform <stylesheet> <input
document>");
System.exit(1);
}
String xslName = args[0];
String xmlName = args[1];
System.setProperty("javax.xml.transform.TransformerFactory",
"org.apache.xalan.xsltc.trax.TransformerFactoryImpl");
TransformerFactory tFactory = TransformerFactory.newInstance();
tFactory.setURIResolver(new MyResolver());
Transformer transformer = tFactory.newTransformer(new
StreamSource(xslName));
transformer.transform(new StreamSource(xmlName), new
StreamResult(System.out));
}
public static class MyResolver implements URIResolver {
public Source resolve(String href, String base) {
System.out.println("Loading: " + href);
return new StreamSource(href);
}
}
}
test.xsl:
------------
<?xml version="1.0"?>
<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:variable name="doc" select="'test_2.xml'"/>
<xsl:template match='/'>
<out>
<xsl:value-of select="document($doc)/doc"/>
<xsl:value-of select="document($doc)/doc"/>
</out>
</xsl:template>
</xsl:stylesheet>
test.xml:
------------
<?xml version="1.0"?>
<doc>
test.xml
</doc>
test_2.xml:
--------------
<?xml version="1.0"?>
<doc>
test_2.xml
</doc>
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