Class: FHIR::ResourceAddress

Inherits:
Object
  • Object
show all
Defined in:
lib/fhir_client/resource_address.rb

Constant Summary collapse

DEFAULTS = 
{
  id: nil,
  resource: nil,
  format: 'application/fhir+xml'
}.freeze
DEFAULT_CHARSET = 
'UTF-8'.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.append_forward_slash_to_path(path) ⇒ Object 



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# File 'lib/fhir_client/resource_address.rb', line 134

def self.append_forward_slash_to_path(path)
  path += '/' unless path.last == '/'
  path
end

.pull_out_id(resource_type, url) ⇒ Object

Get the resource ID out of the URL (e.g. Bundle.entry.response.location)



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# File 'lib/fhir_client/resource_address.rb', line 117

def self.pull_out_id(resource_type, url)
  id = nil
  if !resource_type.nil? && !url.nil?
    token = "#{resource_type}/"
    if url.index(token)
      start = url.index(token) + token.length
      t = url[start..-1]
      stop = (t.index('/') || 0) - 1
      stop = -1 if stop.nil?
      id = t[0..stop]
    else
      id = nil
    end
  end
  id
end

Instance Method Details

#fhir_headers(options, use_format_param = false) ⇒ Object 



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# File 'lib/fhir_client/resource_address.rb', line 11

def fhir_headers(options, use_format_param = false)
  options = DEFAULTS.merge(options)

  format = options[:format] || FHIR::Formats::ResourceFormat::RESOURCE_XML
  fhir_headers = {
    'User-Agent' => 'Ruby FHIR Client',
    'Content-Type' => format + ';charset=' + DEFAULT_CHARSET,
    'Accept-Charset' => DEFAULT_CHARSET
  }
  # remove the content-type header if the format is 'xml' or 'json' because
  # even those are valid _format parameter options, they are not valid MimeTypes.
  fhir_headers.delete('Content-Type') if %w(xml json).include?(format.downcase)

  if options[:category]
    # options[:category] should be an Array of FHIR::Tag objects
    tags = {
      'Category' => options[:category].collect(&:to_header).join(',')
    }
    fhir_headers.merge!(tags)
    options.delete(:category)
  end

  if use_format_param
    fhir_headers.delete('Accept')
    options.delete('Accept')
    options.delete(:accept)
  else
    fhir_headers['Accept'] = format
  end

  fhir_headers.merge!(options) unless options.empty?
  fhir_headers[:operation] = options[:operation][:name] if options[:operation] && options[:operation][:name]
  fhir_headers.delete('id')
  fhir_headers.delete('resource')
  fhir_headers
end

#resource_url(options, use_format_param = false) ⇒ Object 



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# File 'lib/fhir_client/resource_address.rb', line 48

def resource_url(options, use_format_param = false)
  options = DEFAULTS.merge(options)

  params = {}
  url = ''
  # handle requests for resources by class or string; useful for testing nonexistent resource types
  url += "/#{options[:resource].try(:name).try(:demodulize) || options[:resource].split('::').last}" if options[:resource]
  url += "/#{options[:id]}" if options[:id]
  url += '/$validate' if options[:validate]
  url += '/$match' if options[:match]

  if options[:operation]
    opr = options[:operation]
    p = opr[:parameters]
    p = p.each { |k, v| p[k] = v[:value] } if p
    params.merge!(p) if p && opr[:method] == 'GET'

    if opr[:name] == :fetch_patient_record
      url += '/$everything'
    elsif opr[:name] == :value_set_expansion
      url += '/$expand'
    elsif opr  && opr[:name] == :value_set_based_validation
      url += '/$validate-code'
    elsif opr  && opr[:name] == :code_system_lookup
      url += '/$lookup'
    elsif opr  && opr[:name] == :concept_map_translate
      url += '/$translate'
    elsif opr  && opr[:name] == :closure_table_maintenance
      url += '/$closure'
    end
  end

  if options[:history]
    history = options[:history]
    url += '/_history'
    url += "/#{history[:id]}" if history.key?(:id)
    params[:_count] = history[:count] if history[:count]
    params[:_since] = history[:since].iso8601 if history[:since]
  end

  if options[:search]
    search_options = options[:search]
    url += '/_search' if search_options[:flag]
    url += "/#{search_options[:compartment]}" if search_options[:compartment]

    if search_options[:parameters]
      search_options[:parameters].each do |key, value|
        params[key.to_sym] = value
      end
    end
  end

  # options[:params] is simply appended at the end of a url and is used by testscripts
  url += options[:params] if options[:params]

  params[:_summary] = options[:summary] if options[:summary]

  if use_format_param && options[:format]
    params[:_format] = options[:format]
  end

  uri = Addressable::URI.parse(url)
  # params passed in options takes precidence over params calculated in this method
  # for use by testscript primarily
  uri.query_values = params unless options[:params] && options[:params].include?('?')
  uri.normalize.to_str
end