Class: RDF::Util::File::HttpAdapter Abstract

Inherits:
Object
  • Object
show all
Defined in:
lib/rdf/util/file.rb

Overview

This class is abstract.

Subclass and override HttpAdapter.open_url to implement a custom adapter

Since:

  • 1.2

Direct Known Subclasses

FaradayAdapter, NetHttpAdapter, RestClientAdapter

Class Method Summary collapse

Class Method Details

.default_accept_header ⇒ String

Returns the value for an Accept header.

Returns:

  • (String) —

    the value for an Accept header

Since:

  • 1.2



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# File 'lib/rdf/util/file.rb', line 41

def self.default_accept_header
  # Receive text/html and text/plain at a lower priority than other formats
  reader_types = RDF::Format.reader_types.map do |t|
    case t.to_s
    when /text\/(?:plain|html)/
      "#{t};q=0.5"
    when /application\/xhtml\+xml/
      "#{t};q=0.7"
    else
      t
    end
  end

  (reader_types + %w(*/*;q=0.1)).join(", ")
end

.headers(options) ⇒ Hash

Returns A hash of HTTP request headers.

Parameters:

  • options (Hash{Symbol => Object})

Options Hash (options):

  • :headers (Array, String) —

    HTTP Request headers

Returns:

  • (Hash) —

    A hash of HTTP request headers

Since:

  • 1.2



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# File 'lib/rdf/util/file.rb', line 33

def self.headers options
  headers = options.fetch(:headers, {})
  headers['Accept'] ||= default_accept_header
  headers
end

.open_url(base_uri, options) ⇒ RemoteDocument, Object

This method is abstract.

Returns A RemoteDocument. If a block is given, the result of evaluating the block is returned.

Parameters:

  • base_uri (String) —

    to open

  • options (Hash{Symbol => Object}) —

    options are ignored in this implementation. Applications are encouraged to override this implementation to provide more control over HTTP headers and redirect following.

Options Hash (options):

  • :proxy (String) —

    HTTP Proxy to use for requests.

  • :headers (Array, String) —

    HTTP Request headers

  • :verify_none (Boolean) — default: false —

    Don’t verify SSL certificates

Returns:

Raises:

  • (IOError) —

    if not found

Since:

  • 1.2



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# File 'lib/rdf/util/file.rb', line 72

def self.open_url(base_uri, options)
  raise NoMethodError.new("#{self.inspect} does not implement required method `open_url` for ", "open_url")
end