How can I retrieve an element from Groovy's GPathResult using a string that contains a perioid

Question

def elementPath = \"elementA.elementB\"
xml.\"${elementPath}\".each {}

How to make this work? xml.elementA.elementB.each {} works.

Answer 1

I can think of 2 ways round this...

// Dummy Data for the testing
def CAR_RECORDS = '''
    
      
        Australia
        Production Pickup Truck with speed of 271kph
      
      
        Isle of Man
        Smallest Street-Legal Car at 99cm wide and 59 kg in weight
      
      
        France
        Most Valuable Car at $15 million
      
    
  '''
def xml = new XmlSlurper().parseText( CAR_RECORDS )
def propNames = 'car.country'

// METHOD 1
// Split the propnames into individual properties, then use Inject to walk down this list
// Passing the result to the next property
propNames.split( /\./ ).inject( xml ) { obj, prop -> obj?."$prop" }.each { println it.text() }

// METHOD 2
// Construct a string to evaluate, and pass the xml object to it (it gets substituted in place of x)
Eval.x( xml, "x.${propNames}" ).each { println it.text() }

The javadoc page for Eval.x is here

Hope this helps :-)