Question about Business Mapping Expression Language

Question

I am trying to create a Business Dimension for tag compliance from the API. Do I have to validate the existence of the tag first and then its compliance, or the various operators will return false if the tag does not exist?

Basically, should I do this:

{
"defaultValue": "Compliant",
"statement": [
{
"matchExpression": "!(TAG['Tag1'] IN ('value1', 'value2'))",
"valueExpression": "Non-compliant"
},
{
"matchExpression": "!(TAG['Tag2'] FIND /^c[a-z][0-9]{6}$/)",
"valueExpression": "Non-compliant"
}
]
}

Or that:

{
"defaultValue": "Compliant",
"statement": [
{
"matchExpression": "!EXIST TAG['Tag1']",
"valueExpression": "Non-compliant"
},
{
"matchExpression": "!(TAG['Tag1'] IN ('value1', 'value2'))",
"valueExpression": "Non-compliant"
},
{
"matchExpression": "!EXIST TAG['Tag2']",
"valueExpression": "Non-compliant"
},
{
"matchExpression": "!(TAG['Tag2'] FIND /^c[a-z][0-9]{6}$/)",
"valueExpression": "Non-compliant"
}
]
}
#Cloudability

Accepted Answer

Hello Pierre - I have received some guidance on your question. Please see below.

Because your default value is compliant, if the tag does not exist, then it will default to compliant. I would check the if the tag exists OR change your BM logic around. Pretty much changing default value to non-compliant then having rules to make sure a tag is compliant or not.

Hope this helps!
#Cloudability

IBM Cloudability