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RMLio / rmlmapper-java

The RMLMapper executes RML rules to generate high quality Linked Data from multiple originally (semi-)structured data sources

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Generating and IRI from an email address

psiotwo opened this issue · comments

commented

I need to turn a value like 'a@example.com' into an IRI <a@example.com>:

  • rr:objectMap [ rml:reference "email" ] - generates a literal "a@example.com"
  • rr:objectMap [ rml:reference "email" ; rr:termType rr:IRI ] - generates an IRI prepended with BASE, i.e. <https://some-base-of-the-document/a@example.com>

But I need <a@example.com>.

Is it possible? If yes, how? Thanks a lot.

commented

The IRI must be a valid one, yours:

<a@example.com>

Is not really a valid one.
If the IRI is not an absolute one, the [R2]RML specification [1] specifies that the base IRI of the mapping should be used to get an absolute IRI. This is what you see here.

<mailto:a@example.com>

This should be a valid absolute IRI, thus the base IRI is not put in front then.

[1] https://www.w3.org/TR/r2rml/