Can not parse example.jsonld

[peio]

GraphDB and Jena parsers have issues with the example jsonld file.

The jena riot error is:

riot -v --validate sba.jsonld
08:38:27 ERROR riot            :: A keyword [@context] redefinition has been detected.

Could not find more context or obvious fix, so pasting it as is.

Thank you for looking at it.

[joshcornejo]

Can you try with:

"@context":  { 
   "https://ekgf.github.io/dprod/dprod.jsonld" 
},

[peio]

Dear Josh,

 "@context":  { 
   "https://ekgf.github.io/dprod/dprod.jsonld" 
},

Is not validated for me. Can you please paste the whole file in case I am missing something.

Thank you

[joshcornejo]

Can you retry with this file:

{
  "@context": "https://ekgf.github.io/dprod/dprod.jsonld",
  "id": "sba-pool-rates",
  "@id": "https://y.com/products/sba-pool-rates",
  "@type": "DataProduct",
  "title": "SBA Pool Rates",
  "description": "Rates for SBA Pool that are Mortgage Backed Securities. The data product is provided through 3 ports, one of them proving all SBA pool rates through a query to a database, another port providing EMEA only rates through an api and another one providing US only rates through a Kafka topic",
  "dataProductOwner": "https://www.schema.xxx/person/johnSmith",
  "lifecycle": "Consume",
  "outputPort": [
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-tabular-prod1",
      "environment": "PROD",
      "@id": "https://y.com/service/sba-pool-rate-tabular-prod1",
      "dcat:endpointURL": "jdbc:oracle:thin:@sd656-5656-6745.ldn.organiation.com:43534/PGPERG.WORLD",
      "sql": "select * from ...",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-tabular",
        "id": "sba-pool-rate-tabular",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/sql",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate",
          "id": "sba-pool-rate",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    },
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-emea-api-prod1",
      "environment": "PROD",
      "@id": "https://y.com/service/sba-pool-rate-emea-api-prod1",
      "dcat:endpointURL": "https://example.org/mbs/SBA-Pool-location-emea",
      "dcat:conformsTo": "../resources/users.yaml",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-emea-json1",
        "id": "sba-pool-rate-emea-json1",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/json",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate-emea",
          "description": "SBA pool data that cover EMEA accessed through an api",
          "geographicalCoverage": "https://y.com/country/EMEA",
          "id": "sba-pool-rate-emea",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    },
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-json-prod1",
      "@id": "https://y.com/service/sba-pool-rate-json-prod1",
      "dcat:endpointURL": "q1.debt.mbs.dataset.us",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-json",
        "id": "sba-pool-rate-json",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/json",
        "conformsTo": "http://confluent-registry-y/rates-json-schema.json",
        "schemaCompatibility": "backwards compatible",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate-us",
          "id": "sba-pool-rate-us",
          "geographicalCoverage": "https://y.com/country/US",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    }
  ]
}

[peio]

Dear John,
Thank you for your speedy answers! Unfortunately this one is not validated either and the error remains the same:

$ ./riot sba.jsonld
06:52:34 ERROR riot            :: A keyword [@context] redefinition has been detected.

[joshcornejo]

Sorry, I forgot to comment that I found the issue, and we're trying to find the owner to recreate the file.

Can you please temporarily try the following:

Download: https://ekgf.github.io/dprod/dprod.jsonld

Fix the header that is duplicated:

 "@context": {
        "@context": {
            "@version": 1.1,
            "dcat": "http://www.w3.org/ns/dcat#",
            "dct": "http://purl.org/dc/terms/",
            "dprod": "https://ekgf.github.io/dprod/",
            "linkedin": "https://www.linkedin.com/in/",
            "owl": "http://www.w3.org/2002/07/owl#",
            "prov": "http://www.w3.org/ns/prov#",
            "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
            "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
            "sh": "http://www.w3.org/ns/shacl#",
            "xsd": "http://www.w3.org/2001/XMLSchema#"
        }
    },

Temporary re-point the file:

{
  "@context": "temporary.context.json",    // <--- here
  "id": "sba-pool-rates",
  "@id": "https://y.com/products/sba-pool-rates",
  "@type": "DataProduct",
  "title": "SBA Pool Rates",
  "description": "Rates for SBA Pool that are Mortgage Backed Securities. The data product is provided through 3 ports, one of them proving all SBA pool rates through a query to a database, another port providing EMEA only rates through an api and another one providing US only rates through a Kafka topic",
  "dataProductOwner": "https://www.schema.xxx/person/johnSmith",
  "lifecycle": "Consume",
  "outputPort": [
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-tabular-prod1",
      "environment": "PROD",
      "@id": "https://y.com/service/sba-pool-rate-tabular-prod1",
      "dcat:endpointURL": "jdbc:oracle:thin:@sd656-5656-6745.ldn.organiation.com:43534/PGPERG.WORLD",
      "sql": "select * from ...",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-tabular",
        "id": "sba-pool-rate-tabular",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/sql",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate",
          "id": "sba-pool-rate",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    },
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-emea-api-prod1",
      "environment": "PROD",
      "@id": "https://y.com/service/sba-pool-rate-emea-api-prod1",
      "dcat:endpointURL": "https://example.org/mbs/SBA-Pool-location-emea",
      "dcat:conformsTo": "../resources/users.yaml",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-emea-json1",
        "id": "sba-pool-rate-emea-json1",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/json",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate-emea",
          "description": "SBA pool data that cover EMEA accessed through an api",
          "geographicalCoverage": "https://y.com/country/EMEA",
          "id": "sba-pool-rate-emea",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    },
    {
      "@type": "dcat:DataService",
      "id": "sba-pool-rate-json-prod1",
      "@id": "https://y.com/service/sba-pool-rate-json-prod1",
      "dcat:endpointURL": "q1.debt.mbs.dataset.us",
      "isAccessServiceOf": {
        "@id": "https://y.com/distribution/sba-pool-rate-json",
        "id": "sba-pool-rate-json",
        "@type": "dcat:Distribution",
        "dcterms:format": "https://www.iana.org/assignments/media-types/application/json",
        "conformsTo": "http://confluent-registry-y/rates-json-schema.json",
        "schemaCompatibility": "backwards compatible",
        "isDistributionOf": {
          "@type": "dcat:Dataset",
          "@id": "https://y.com/dataset/sba-pool-rate-us",
          "id": "sba-pool-rate-us",
          "geographicalCoverage": "https://y.com/country/US",
          "dcat:conformsTo": "https://spec.edmcouncil.org/fibo/ontology/SEC/Debt/MortgageBackedSecurities/SBA-Pool"
        }
      }
    }
  ]
}

[joshcornejo]

@peio - the file https://ekgf.github.io/dprod/dprod.jsonld has been corrected.

[VladimirAlexiev]

@joshcornejo @tonyseale
This context is still nogood, see #93.
(Just because something can be parsed doesn't make it right.)
This is the ontology dumped as JSONLD, not a proper context.

Eg the examples by Josh use the term dataProductOwner. But the context doesn't define that term. So that doesn't result in a triple (it is ignored silently).
And there are many other terms not defined by the context.

cc @peio @rivettp

[joshcornejo]

@jgeluk - you own the tool that generates the output, we might need to sit down and go line by line for a revision?

[VladimirAlexiev]

@jgeluk do you convert the ontology to JSON-LD?
Then that's not a context. I suggest to write it by hand.

[jgeluk]

It's just an export from an rdflib graph loaded with the ontology. Exported just like the other file formats.

[VladimirAlexiev]

I suggest to write the context by hand.