Grails Accessing Raw XML from a Request

There have been times in a grails controller I've wanted direct access to the xml in a POST request. You can retreive this via the request object: request.reader.text But what if you need access the raw xml and then to also use the xmlslurper to pick apart the xml. Accessing the request.XML after request.reader.xml throws this exception: java.lang.IllegalStateException: getReader() has already been called for this request

Say I have the following xml:
<one> <two>test line</two> <three> ... </three> </one>

and I want to access the raw xml tag 'three' but I want programmatic access to the tag 'two'. The following allows that: def xml = request.reader.text def three = xml =~ /(?m)(<three.*<\/three>)/ # multine regex def parsed = new XmlParser().parseText(xml) def two = parsed.one.two.text()