Hello @ts_fpatterson,
You can accomplish this with out of the box transform operations. Your requirements are similar to that of this post.
The first part of this transform will take your input and find the last index of . to use as the integer to begin the substring from.
The second piece beginOffset is needed as the last index of . will include .test and will trim the next 1 character.
Finally, input your . seperated string to the substring transform with begin and beginOffset.
{
"attributes": {
"begin": {
"attributes": {
"input": {
"attributes": {
"value": "this.is.a.test"
},
"type": "static"
},
"substring": "."
},
"type": "lastIndexOf"
},
"beginOffset": 1,
"input": {
"attributes": {
"value": "this.is.a.test"
},
"type": "static"
}
},
"type": "substring"
}