Groovy script to split a file line at ',' and create a new XML file - groovy

Question

I am very new to Groovy and trying to figure my way out.
I am trying to write a groovy to split the lines of a file on encountering ',' and then write a if condition based on the first two characters of the line. After that I wanted to create a XML file using the different data in the file. This is how far I have reached.
def Message processData(Message message) {
//Body
def body = message.getBody(java.lang.String)as String;
def varStringWriter = new StringWriter();
def varXMLBuilder = new MarkupBuilder(varStringWriter);
String newItem ;
body.eachLine{
line -> newItem = line ;
String newItem1 = newItem.substring(0,2).trim();
String newItem2 = newItem.substring(3,11).trim();
varXMLBuilder.RECORD{
node1(newItem1);
node2(newItem2);
}
}
def xml = varStringWriter.toString();
xml="<RECORDS>"+xml+"</RECORDS>" ;
message.setBody(xml);
return message;
}
In the above code I tried to use offset but, since each of my file lines are of different length it wont work.
Please help me handle this issue.
Regards,
Nisha

Answer 1

Splitting on a character can be done like this:
data = 'axaratgxrgc,rxregxsergcs'
def lines = data.split(/,/)
assert lines[0] == 'axaratgxrgc'
assert lines[1] == 'rxregxsergcs'

Answer 2

Welcome, first of all, to groovy and Stack Overflow :)
You can use tokenize() to split a string, as shown bellow.
And yeah, don't worry about ; in groovy ;)
def Message processData(Message message) {
//Body
def body = message.getBody(java.lang.String) as String;
def varStringWriter = new StringWriter()
def varXMLBuilder = new MarkupBuilder(varStringWriter)
body.eachLine { line ->
def newItems = line.tokenize(',') // input is a list of chars that will split your string, usually better than .split()
String newItem1 = newItems.first() // looks like you want just two items
String newItem2 = newItems.last() // but you can use as an array as well newItems[0] and newItems[1]
varXMLBuilder.RECORD {
node1(newItem1)
node2(newItem2)
}
}
def xml = varStringWriter.toString()
xml="<RECORDS>${xml}</RECORDS>" // you can use ${} to add a variable inside a string
message.setBody(xml)
return message
}