NamespaceReplacer - santhosh-tekuri/jlibs GitHub Wiki

NamespaceReplacer extends SAXDelegate.

SAXDelegate is used to chain sax handlers. SAXDelegate implements all sax handlers ContentHandler, LexicalHandler etc. It provides setXXXHandler(…) to support chaining.

First create a map specifying the namespaces to be replaced.

Map<String, String> namespaces = new HashMap<String, String>();
namespaces.put("http://schemas.xmlsoap.org/soap/envelope/", "http://www.w3.org/2003/05/soap-envelope");
namespaces.put("http://jlibs.org", "");

here we are trying to replace http://schemas.xmlsoap.org/soap/envelope/ with http://www.w3.org/2003/05/soap-envelope
and http://jlibs.org with empty namespace.

Now create NamespaceReplacer:

import jlibs.xml.sax.NamespaceReplacer;



NamespaceReplacer nsReplacer = new NamespaceReplacer(namespaces);

let us say you have MyDefaultHandler which is supposed to recieve sax events.
Rather than registering MyDefaultHandler with SAXParser, you register nsReplacer
with SAXParser, and MyDefaultHandler is registered with nsReplacer.

import javax.xml.parsers.SAXParser;



MyDefaultHandler myHandler = new MyDefaultHandler();

nsReplacer.setContentHandler(myHandler)

SAXParser parser = createNamespaceAwareSAXParser();

parser.parse(xmlFile, nsReplacer);

Now sax events recieved by myHandler will have namespaces replaced.