Jolt transforming to array - json

Question

I am getting null in my output json. Please find my spec and details below. The input json can have n numbers of COMPINFO . pls suggest
my input.json is
{
"valid": "true",
"message": "",
"data": {
"COMPINFO": [
{
"ORGID": "",
"SITEID": "BWDEMO",
"COMPID": "C2014",
"COMP_DESC": "Cherokee High School",
"ASSETTYPE": "MANUFACTURING",
"BUILDING": "Main",
"FLR_LEVEL": "Ground",
"ROOM_SPCE": "100"
},
{
"ORGID": "",
"SITEID": "BWDEMO",
"COMPID": "9001B",
"COMP_DESC": "Sludge Pump",
"ASSETTYPE": "FACILITY",
"BUILDING": "Main",
"FLR_LEVEL": "Production",
"ROOM_SPCE": "100"
}
]
}
}
my Spec.json is
[
{
"operation": "shift",
"spec": {
"data": {
"COMPINFO": {
"*": {
"COMPID": "[&1].COMPID",
"ORGID": "[&1].ORGID",
"COMP_DESC": "[&1].DESCRIPTION",
"BUILDING": "[&1].LOCATIONS.[&1].Building",
"FLR_LEVEL": "[&1].LOCATIONS.[&1].Floor_Level",
"ROOM_SPCE": "[&1].LOCATIONS.[&1].ROOM_SPCE",
"SITEID": "[&1].SITEID",
"ASSETTYPE": "[&1].ASSETTYPE"
}
}
}
}
}
]
expected output should be :
[
{
"COMPID" : "C2014",
"ORGID" : "",
"DESCRIPTION" : "Cherokee High School",
"LOCATIONS" : [ {
"Building" : "Main",
"Floor_Level" : "Ground",
"ROOM_SPCE" : "100"
} ],
"SITEID" : "BWDEMO",
"ASSETTYPE" : "MANUFACTURING"
}, {
"COMPID" : "9001B",
"ORGID" : "",
"DESCRIPTION" : "Sludge Pump",
"LOCATIONS" : [{
"Building" : "Main",
"Floor_Level" : "Production",
"ROOM_SPCE" : "100"
} ],
"SITEID" : "BWDEMO",
"ASSETTYPE" : "FACILITY"
}
]
but getting null (highlighted (Bold)) :
[
{
"COMPID" : "C2014",
"ORGID" : "",
"DESCRIPTION" : "Cherokee High School",
"LOCATIONS" : [ {
"Building" : "Main",
"Floor_Level" : "Ground",
"ROOM_SPCE" : "100"
} ],
"SITEID" : "BWDEMO",
"ASSETTYPE" : "MANUFACTURING"
}, {
"COMPID" : "9001B",
"ORGID" : "",
"DESCRIPTION" : "Sludge Pump",
"LOCATIONS" : [ null, {
"Building" : "Main",
"Floor_Level" : "Production",
"ROOM_SPCE" : "100"
} ],
"SITEID" : "BWDEMO",
"ASSETTYPE" : "FACILITY"
}
]
can someone help quickly ??
Thanks in advance .ssssssssssssssssssssss

Answer 1

It looks like you there is only one "location" per input item, and that you just want them to alway be the first element in a location array.
If so that is easy. If you are wanting to "group" your data and have some of the locations array have multiple items, that is a harder transform.
Spec for the simple version
[
{
"operation": "shift",
"spec": {
"data": {
"COMPINFO": {
"*": {
"COMPID": "[&1].COMPID",
"ORGID": "[&1].ORGID",
"COMP_DESC": "[&1].DESCRIPTION",
"BUILDING": "[&1].LOCATIONS[0].Building",
"FLR_LEVEL": "[&1].LOCATIONS[0].Floor_Level",
"ROOM_SPCE": "[&1].LOCATIONS[0].ROOM_SPCE",
"SITEID": "[&1].SITEID",
"ASSETTYPE": "[&1].ASSETTYPE"
}
}
}
}
}
]
There are examples around for the harder version.