Forked from robvalk/streaming-xml-transform.groovy
Created
December 16, 2015 23:48
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import org.mule.api.transport.OutputHandler | |
// store the current payload at the time the script is invoked | |
// (i.e. the back-end response stream/iterator) | |
def itr = payload; | |
// return a Groovy closure / lambda | |
return {evt, out -> | |
// define a stream XML builder object | |
def xml = new groovy.xml.StreamingMarkupBuilder(); | |
// construct the builder function | |
def xmlClosure = { | |
mkp.declareNamespace(ns0: "http://mycomany.com/schema/account/v1/xsd") | |
is.accountList { // XML root element | |
itr.each { _acnt -> // lazily iterate over the back-end response records | |
account { // XML record element | |
systemId(_acnt.accountId) | |
// map other fields in here as necessary | |
// ... | |
} | |
} | |
} | |
} | |
// write the resulting XML directly to the output stream provided by Mule as a parameter | |
out << xml.bind(xmlClosure); | |
} as OutputHandler // Groovy way to implement a Java interface with a single method |
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