Class: LD4L::WorksRDF::GetMetadataFromMarcxmlURI

Inherits:
Object
  • Object
show all
Defined in:
lib/ld4l/works_rdf/services/get_metadata_from_marcxml_uri.rb

Class Method Summary collapse

Class Method Details

.call(uri, localname_prefix = "") ⇒ Object

Get display metadata via content negotiation from an URI known to return MARCXML

Parameters:

  • uri (String, RDF::URI) —

    for the work

Raises:

  • (ArgumentError) 


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# File 'lib/ld4l/works_rdf/services/get_metadata_from_marcxml_uri.rb', line 11

def self.call( uri, localname_prefix="" )
  raise ArgumentError, 'uri argument must be a uri string or an instance of RDF::URI'  unless
      uri.kind_of?(String) && uri.size > 0 || uri.kind_of?(RDF::URI)

  baseuri = LD4L::WorksRDF.configuration.base_uri
  baseuri = "#{baseuri}/" unless baseuri.end_with?("/")

  document_id = URI.parse(uri).path.split('/').last

  bibframe_work_uri = "#{baseuri}#{localname_prefix}#{document_id}"

  marcxml    = LD4L::WorksRDF::GetMarcxmlFromURI.call(uri)
  metadata   = LD4L::WorksRDF::SetErrorInMetadata.call(uri,'ERROR: Unable to retrieve MARCXML from URI')      unless marcxml && marcxml.size > 0

  rdfxml     = LD4L::WorksRDF::GetRdfxmlFromMarcxml.call(marcxml,baseuri) if marcxml && marcxml.size > 0
  metadata   = LD4L::WorksRDF::SetErrorInMetadata.call(uri,'ERROR: Unable to convert MARCXML into RDFXMl')    unless rdfxml && rdfxml.size > 0

  graph      = LD4L::WorksRDF::PopulateGraphFromRdfxml.call(rdfxml)       if rdfxml  && rdfxml.size > 0
  metadata   = LD4L::WorksRDF::SetErrorInMetadata.call(uri,'ERROR: Unable to populate graph from RDFXML')     unless graph

  repository = LD4L::WorksRDF::PopulateRepositoryFromGraph.call(graph)    if graph
  metadata   = LD4L::WorksRDF::SetErrorInMetadata.call(uri,'ERROR: Unable to populate repository from graph') unless repository

  models     = LD4L::WorksRDF::PopulateBibframeModelsFromRepository.call(bibframe_work_uri,repository)   if repository
  metadata   = LD4L::WorksRDF::SetErrorInMetadata.call(uri,'ERROR: Unable to populate models from repository') unless models

  metadata   = LD4L::WorksRDF::GetMetadataFromBibframeModels.call(uri, models)   if models
  metadata

end