Adding a new node to an XML file in Groovy at Tuesday, September 29, 2009

Whilst working on a Grails plugin I needed to add an extra import statement to the Spring resources.xml config file, here's how I did it.

def parser= new XmlParser().parse(new File('resources.xml'))
 
if (!parser.'import'.'@resource'.contains('foo.xml')) {
 def newNode = new Node(res, 'import', [resource: 'foo.xml'])
 res.'import'.add(newNode)  
}
    
def writer = new FileWriter('resources.xml') 
new XmlNodePrinter(new PrintWriter(writer)).print(parser)