XSLT: how can I filter out all elements with a specific namespace

I have an XML file that looks like this: ``` <zoo xmlns="http://myurl.com/wsdl/myservice"> <animal>elephant</animal> <exhibit> <animal>walrus</animal> <animal>sea otter</animal> <trainer xmlns="http://example.com/abc">Jack</trainer> </exhibit> <exhibit xmlns="http://example.com/abc"> <animal>lion</animal> <animal>tiger</animal> </exhibit> </zoo> ``` How can I write an XSLT stylesheet that filters out all elements and/or all node trees in the "http://example.com/abc" namespace? Desired result XML: ``` <zoo xmlns="http://myurl.com/wsdl/myservice"> <animal>elephant</animal> <exhibit> <animal>walrus</animal> <animal>sea otter</animal> </exhibit> </zoo> ``` I'm trying something like this, but it just isn't working: Failed XSLT: ``` <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:a="http://example.com/abc" exclude-result-prefixes="a"> <xsl:output method="xml" indent="yes"/> <xsl:template match="@*|node()"> <xsl:copy> <xsl:apply-templates select="@*|node()" /> </xsl:copy> </xsl:template> </xsl:stylesheet> ``` Update I got a good suggestion, but it's still not working. Here's the Java code I'm using to do the XSLT translation: ``` import java.io.*; import org.w3c.dom.*; // XML DOM import javax.xml.parsers.*; // DocumentBuilder, etc import javax.xml.transform.*; // Transformer, etc import javax.xml.transform.stream.*; // StreamResult, StreamSource, etc import javax.xml.transform.dom.DOMSource; public class Test { public static void main(String[] args) { new Test().testZoo(); } public void testZoo () { System.out.println ("Reading zoo.xml"); String zooXml = MassageXfddXml.readXmlFile ("zoo.xml"); if (zooXml == null) return; try { // Read XFDD input string into DOM DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder (); Document xfddDoc = docBuilder.parse(new StringBufferInputStream (zooXml)); // Filter out all elements in "http://example.com/abc" namespace StreamSource styleSource = new StreamSource (new File ("zoo.xsl")); Transformer transformer = TransformerFactory.newInstance().newTransformer (styleSource); // Convert final DOM back to String StringWriter buffer = new StringWriter (); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); // Remember: we want to insert this XML as a subnode transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.transform(new DOMSource(xfddDoc), new StreamResult (buffer)); String translatedXml = buffer.toString(); System.out.println ("initial XML:\n" + zooXml + "\nfinal XML:\n" + translatedXml); } catch (Exception e) { System.out.println ("convertTransactionData error: " + e.getMessage()); e.printStackTrace (); } } ``` Here's the new stylesheet: ``` <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:a="http://example.com/abc" exclude-result-prefixes="a" > <xsl:output method="xml" indent="yes"/> <xsl:template match="@* | node()"> <xsl:copy> <xsl:apply-templates select="@* | node()" /> </xsl:copy> </xsl:template> <xsl:template match="a:* | @a:*" /> </xsl:stylesheet> ``` And here's the output: ``` Reading zoo.xml bytes read=337 initial XML: <zoo xmlns="http://myurl.com/wsdl/myservice"> <animal>elephant</animal> <exhibit> <animal>walrus</animal> <animal>sea otter</animal> <trainer xmlns="http://example.com/abc">Jack</trainer> </exhibit> <exhibit xmlns="http://example.com/abc"> <animal>lion</animal> <animal>tiger</animal> </exhibit> </zoo> final XML: <zoo xmlns="http://myurl.com/wsdl/myservice"> <animal>elephant</animal> <exhibit> <animal>walrus</animal> <animal>sea otter</animal> <trainer xmlns="http://example.com/abc">Jack</trainer> </exhibit> <exhibit xmlns="http://example.com/abc"> <animal>lion</animal> <animal>tiger</animal> </exhibit> </zoo> ```