Updating the matching/linking rules syntax to support null, and repeated variable names

[walisc]

Ticket: N/A
Other Related Tickets: N/A

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Describe of changes

This change extends the config rules parser to support null values, and have multiple variables in the rull. The rules that can now be supported are examplified below:

• Example1

  • Input rule: eq(nationalId)
  • Output

    query query_link_deterministic_a($national_id: string) {
           all(func:type(GoldenRecord)) @filter(eq(GoldenRecord.national_id, 
             $national_id
             )) {
              uid
              GoldenRecord.source_id {
                 uid
              }
              GoldenRecord.aux_date_created
              GoldenRecord.aux_auto_update_enabled
              GoldenRecord.aux_id
              GoldenRecord.given_name
              GoldenRecord.family_name
              GoldenRecord.gender
              GoldenRecord.dob
              GoldenRecord.city
              GoldenRecord.phone_number
              GoldenRecord.national_id
           }
        }

• Example2

  • Input rule: eq(national_id) or null(national_id) and eq(ccc)
  • Output

    query query_link_deterministic_a($national_id: string) {
           var(func:type(GoldenRecord)) @filter(eq(GoldenRecord.national_id, 
             $national_id
             )) {
              A as uid
           }
           var(func:type(GoldenRecord)) @filter(eq(GoldenRecord.national_id, "")) {
              B as uid
           }
           var(func:type(GoldenRecord)) @filter(eq(GoldenRecord.ccc, 
             $ccc
             )) {
              C as uid
           }
           all(func:type(GoldenRecord)) @filter(uid(A) OR (uid(B) AND uid(C))) {
              uid
              GoldenRecord.source_id {
                 uid
              }
              GoldenRecord.aux_date_created
              GoldenRecord.aux_auto_update_enabled
              GoldenRecord.aux_id
              GoldenRecord.given_name
              GoldenRecord.family_name
              GoldenRecord.gender
              GoldenRecord.dob
              GoldenRecord.city
              GoldenRecord.phone_number
              GoldenRecord.national_id
           }
        }

How to test

• To test this you will need to adjist the config reference ( JeMPI_Apps/JeMPI_Configuration/reference/config-reference-api.json ) rules to the null expression. An example of this if is found in the following file config-reference.json
• Once update you will need the source code generator (run ./create.sh reference/config-reference.json in the 'JeMPI_Apps/JeMPI_Configuration/reference/' folder)
• From there you should be able to add new golden records, and search as appropiate to get your results back. An example of addin records (based on the config above) and search is found in the thunderclient config
  JeMPI-QueryTests.json

[MatthewErispe]

@walisc LGTM