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grafter-2.rdf4j.formats

added in 0.12.1

Symbols used to specify different Linked Data Serializations.

Includes functions to coerce formats from clojure keywords / file
extension strings into their underlying RDF4j RDFFormat object.

Supported format keywords are:

:brf
:json
:n3
:nq
:nt
:rdf (also :owl :rdfs :xml)
:rj
:trig
:trix
:ttl

->rdf-format

multimethod

Extensible multi-method that coerces mime-type strings, or strings
or keys representing file extensions for RDF types into RDFFormat
objects for use with Sesame.

e.g. it can coerce :nt, "nt" or "application/n-triples" into the
appropriate RDFFormat object.
view source

filename->rdf-format

(filename->rdf-format fname)
Given a filename we attempt to return an appropriate RDFFormat
object based on the files extension.
view source

mimetype->rdf-format

multimethod

Extensible multimethod that accepts a mime-type string and returns
the appropriate sesame RDFFormat object.

NOTE: the ->rdf-format function also uses this, and supports both
mime-types and file extensions.
view source

select-input-coercer

(select-input-coercer fmt)
Depending on whether the format is text or binary returns either a
Reader or an InputStream.
view source

select-output-coercer

(select-output-coercer fmt)
Depending on whether the format is text or binary returns either a
Writer or an OutputStream.
view source

url->rdf-format

(url->rdf-format url)
Parse a URL for the file extension of its last path segment,
ignoring query string and other URL parts.
view source