How do you index two value in JSON arrays? - json

Question

I am trying to find an array index of two matching values. I have my Groovy script below that is giving me the index of WhenWeighed and that works. Returns the correct Index. The part I am having difficulty figuring out is adding OpSeq to the indexing criteria.
What I'm trying to do is find the index of WhenWeighed and OpSeq. For Example, I want to find the index of WhenWeighed = BH and OpSeq = 30. In my below JSON this should be 4.
Can anyone help explain how you do this in Groovy?
JSON Used:
{
"BusinessUnit": "1111111",
"WorkOrder": 1111111,
"WeightEstimatesInq": [
{
"WhenWeighed": "BH",
"WhenWeighedDesc": "Before Heading Weight",
"TotalWeight": 900,
"Weight": 12,
"OpSeq": "10",
"AdditionalNotes": " ",
"TareWeight": " ",
"Effective Date": "null"
},
{
"WhenWeighed": "AH",
"WhenWeighedDesc": "After Heading Weight",
"TotalWeight": 987,
"Weight": 900,
"OpSeq": "10",
"AdditionalNotes": "Weighed Bin 10 5/17/2022",
"TareWeight": "87",
"Effective Date": "null"
},
{
"WhenWeighed": "BO",
"WhenWeighedDesc": "Before OSP Weight",
"TotalWeight": 900,
"Weight": 9,
"OpSeq": "50",
"AdditionalNotes": " ",
"TareWeight": " ",
"Effective Date": "null"
},
{
"WhenWeighed": "AO",
"WhenWeighedDesc": "After OSP Weight",
"TotalWeight": 1000,
"Weight": 750,
"OpSeq": "50",
"AdditionalNotes": " ",
"TareWeight": "150",
"Effective Date": "null"
},
{
"WhenWeighed": "BH",
"WhenWeighedDesc": "Before Heading Weight",
"TotalWeight": 720,
"Weight": 700,
"OpSeq": "30",
"AdditionalNotes": "Weighed Bin 30 5/17/2022",
"TareWeight": "20",
"Effective Date": "null"
}
],
"status": "SUCCESS",
"startTimestamp": "2022-05-17T12:27:49.302-0400",
"endTimestamp": "2022-05-17T12:27:50.279-0400",
"serverExecutionSeconds": 0.977
}
Groovy Used:
// Read Input Values
String aWhenWeighedUDC = aInputMap.WhenWeighedUDC ?: " "
String aInputJson = aInputMap.InputJson ?: "{}"
// Initialize Output Values
def error = " "
def rowNumber = 0
def lastRowNumber = 1
// Parse JSON
def json = new JsonSlurper().parseText( aInputJson )
// Determine Row Numbers
def rowset = json?.WeightEstimatesInq
if ( rowset ) {
rowNumber = rowset*.WhenWeighed.indexOf( aWhenWeighedUDC ) + 1
lastRowNumber = rowset.size()
}

Answer 1

If you know that WeightEstimatesInq is always going to be the key for the list of items, you can do something like this:
json["WeightEstimatesInq"].findIndexOf {
it["WhenWeighed"] == "BH" && it["OpSeq"] == "30"
}
which will yield 4. You can add more criteria by && it.
Note that this has the potential to return -1 if nothing matches your criteria.