Class: FHIR::ResourceAddress

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

Constant Summary collapse

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

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.append_forward_slash_to_path(path) ⇒ Object 



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# File 'lib/resource_address.rb', line 127

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

.pull_out_id(resourceType, url) ⇒ Object

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



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# File 'lib/resource_address.rb', line 114

def self.pull_out_id(resourceType,url)
  id = nil
  if !resourceType.nil? && !url.nil?
    token = "#{resourceType}/"
    start = url.index(token) + token.length
    t = url[start..-1]
    stop = (t.index("/") || 0)-1
    stop = -1 if stop.nil?
    id = t[0..stop]
  end
  id
end

Instance Method Details

#fhir_headers(options, use_format_param = false) ⇒ Object 



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# File 'lib/resource_address.rb', line 12

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 ['xml','json'].include?(format.downcase)

  if(options[:category])
    # options[:category] should be an Array of FHIR::Tag objects

    tags = {
      'Category' => options[:category].collect { |h| h.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
end

#resource_url(options, use_format_param = false) ⇒ Object 



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# File 'lib/resource_address.rb', line 47

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]

  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"
    end
  end

  if (options[:history])
    history = options[:history]
    url += "/_history/#{history[: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]

  if(options[:summary])
    params[:_summary] = options[:summary]
  end

  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