Building xml and merging CDATA xml using groovy - groovy

Question

I have mule flow which stores the xml in session variable. I want this xml to be inserted in the xml which is generated in groovy.
My session variable looks like #[sessionVars.shippingdetails]
This session variable has <a><Subject1>science</Subject1><Subject2>Maths</Subject2></a>
When i use session variable in my xmlmarkup builder as like below. I am getting error as groovy.lang.GroovyRuntimeException: Namespace prefix: CDATA is not bound to a URI (javax.script.ScriptException). Message payload is of type: CaseInsensitiveHashMap (org.mule.api.transformer.TransformerMessagingException). Message payload is of type: CaseInsensitiveHashMap
import groovy.xml.XmlUtil
def builder = new groovy.xml.StreamingMarkupBuilder()
builder.encoding = "UTF-8"
// MAPPING
def person = {
// use mkp object which provides features like setting the namespace
mkp.xmlDeclaration()
mkp.declareNamespace("":"urn:abc:alos:BaseComponents")
//start with the XML root node closure
ItemRequest {
Requester{
subject(message.payload.subject)
}
Item{
Title(message.payload.name)
Description(message.payload.desc)
Category {
CategoryID(message.payload.cat_id)
}
ConditionID (message.payload.condition)
Mark (message.payload.Mark)
ShippingDetails [CDATA[sessionVars.shippingdetails]]
}
}
}
// WRITING
def writer = new StringWriter()
writer << builder.bind(person)
println writer.toString()
XmlUtil.serialize(builder.bind(person))
Hence my output xml should like below.
<?xml version="1.0" encoding="UTF-8"?>
<ItemRequest xmlns="urn:abc:alos:BaseComponents">
<Requester>
<subject>something</subject>
</Requester>
<Item>
<Title>Cooler Can Blue</Title>
<Description>This is the place for description.</Description>
<Category>
<CategoryID>562</CategoryID>
</Category>
<ConditionID>25</ConditionID>
<Mark>3</Mark>
<ShippingDetails>
<a>
<Subject1>science</Subject1>
<Subject2>Maths</Subject2>
</a>
</ShippingDetails>
</Item>
</ItemRequest>

Answer 1

Using Groovy 2.4.3, here is one way to get the output specified. (This does not address Mule):
import groovy.xml.*
def markupBuilder = new StreamingMarkupBuilder()
def xml = markupBuilder.bind { builder ->
mkp.declareNamespace( "": "urn:abc:alos:BaseComponents" )
ItemRequest {
Requester {
subject("something")
}
Item {
Title("Cooler Can Blue")
Description("This is the place for description.")
Category {
CategoryID("562")
}
ConditionID("25")
Mark("3")
ShippingDetails {
a {
Subject1("science")
Subject2("Maths")
}
}
}
}
}
def goal = """<?xml version="1.0" encoding="UTF-8"?><ItemRequest xmlns="urn:abc:alos:BaseComponents">
<Requester>
<subject>something</subject>
</Requester>
<Item>
<Title>Cooler Can Blue</Title>
<Description>This is the place for description.</Description>
<Category>
<CategoryID>562</CategoryID>
</Category>
<ConditionID>25</ConditionID>
<Mark>3</Mark>
<ShippingDetails>
<a>
<Subject1>science</Subject1>
<Subject2>Maths</Subject2>
</a>
</ShippingDetails>
</Item>
</ItemRequest>
"""
assert goal == XmlUtil.serialize(xml)