How to extract CDATA without the GPath/node name

Question

I'm trying to extract CDATA content from an XML without the using GPath (or) node name. In short, i want to find & retrieve the innerText containing CDATA section from an XML.

My XML look like:

def xml = '''<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<root>
    <Test1>This node contains some innerText. Ignore This.</Test1>
    <Test2><![CDATA[this is the CDATA section i want to retrieve]]></Test2>
</root>'''

From the above XML, i want to get the CDATA content alone without using the reference of its node name 'Test2'. Because the node name is not always the same in my scenario.

Also note that the XML can contain innerText in few other nodes (Test1). I dont want to retrieve that. I just need the CDATA content out of the whole XML.

I want something like below (the code below is incorrect though)

def parsedXML = new xmlSlurper().parseText(xml)
def cdataContent = parsedXML.depthFirst().findAll { it.text().startsWith('<![CDATA')}  

My output should be :

this is the CDATA section i want to retrieve

Answer 1

As @daggett says, you can't do this with the Groovy slurper or parser, but it's not too bad to drop down and use the java classes to get it.

Note you have to set the property for CDATA to become visible, as by default it's just treated as characters.

Here's the code:

import javax.xml.stream.*

def xml = '''<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<root>
    <Test1>This node contains some innerText. Ignore This.</Test1>
    <Test2><![CDATA[this is the CDATA section i want to retrieve]]></Test2>
</root>'''

def factory = XMLInputFactory.newInstance()
factory.setProperty('http://java.sun.com/xml/stream/properties/report-cdata-event', true)

def reader = factory.createXMLStreamReader(new StringReader(xml))
while (reader.hasNext()) {
    if (reader.eventType in [XMLStreamConstants.CDATA]) {
        println reader.text
    }
    reader.next()
}

That will print this is the CDATA section i want to retrieve