Read XML using XMLParser with groovy

I am having following type XML where I am trying to verify values in there using groovy.

I tried below code. But the problem is the order of events we cannot predict in advance. So following code is failing due to that issue.

def records = new XmlParser().parseText(eventFile)

            assert "emailId" == records.Event.eventAttributes.EventAttribute.getAt(0).name.text()
            assert emailId == records.Event.eventAttributes.EventAttribute.getAt(0).value.text()
            assert "userId" == records.Event.eventAttributes.EventAttribute.getAt(1).name.text()
            assert consumerID == records.Event.eventAttributes.EventAttribute.getAt(1).value.text()

Xml file

<?xml version="1.0" encoding="UTF-8"?>
<SystemEvents feedtime="04:17:37" feeddate="20141017" version="0.0.0.2">
<Event id="7ecef115-7a09-406d" name="registration" eventType="registration">
    <eventTime>2014-10-17T04:17:36Z</eventTime>
    <eventAttributes>
      <EventAttribute>
        <name>emailId</name>
        <value>d2bcon_s141017151735@trashcanmail.com</value>
      </EventAttribute>
      <EventAttribute>
        <name>userId</name>
        <value>47C45983-0E03</value>
      </EventAttribute>
    </eventAttributes>
  </Event>
  <Event id="83157ddc-1500" name="updateAddress" eventType="updateAddress">
    <eventTime>2014-10-17T04:17:19Z</eventTime>
    <eventAttributes>
      <EventAttribute>
        <name>userId</name>
        <value>342ADC23-DC59</value>
      </EventAttribute>
      <EventAttribute>
        <name>ProfileNo</name>
        <value>123141017151658</value>
      </EventAttribute>
    </eventAttributes>
  </Event>
 // more tags
</SystemEvents>

Is there any other way to handle this?

Thanks