Class: SimpleRSS::JsonFeed

Inherits:
Object
  • Object
show all
Defined in:
lib/simple-rss/json_feed.rb

Constant Summary collapse

VERSIONS = 
%w[https://jsonfeed.org/version/1 https://jsonfeed.org/version/1.1].freeze
FEED_FIELDS = 
%w[title description home_page_url feed_url icon favicon language author authors expired next_url hubs user_comment].freeze
FEED_STRINGS = 
%w[description home_page_url feed_url icon favicon next_url user_comment].freeze
ITEM_STRINGS = 
%w[url external_url title summary content_html content_text image banner_image].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source) ⇒ JsonFeed

Returns a new instance of JsonFeed.



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# File 'lib/simple-rss/json_feed.rb', line 17

def initialize(source)
  source = source.b.sub(/\A\xEF\xBB\xBF/n, "").force_encoding(Encoding::UTF_8)
  raise SimpleRSSError, "Malformed JSON Feed: invalid UTF-8" unless source.valid_encoding?

  @document = JSON.parse(source)
  validate
  freeze_data(@document)
  @originals = {} #: Hash[Hash[Symbol, untyped], Hash[String, untyped]]
  @originals.compare_by_identity
  @items = @document.fetch("items").map do |original|
    item = legacy_item(original)
    @originals[item] = original
    item
  end
rescue JSON::ParserError, EncodingError => e
  raise SimpleRSSError, "Malformed JSON Feed: #{e.message}"
end

Instance Attribute Details

#document ⇒ Object (readonly)

: Hash[String, untyped]



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# File 'lib/simple-rss/json_feed.rb', line 11

def document
  @document
end

#items ⇒ Object (readonly)

: Array[Hash[Symbol, untyped]]



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# File 'lib/simple-rss/json_feed.rb', line 12

def items
  @items
end

Instance Method Details

#normalized_entry(item, source_url: nil) ⇒ Object 



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# File 'lib/simple-rss/json_feed.rb', line 36

def normalized_entry(item, source_url: nil)
  original = @originals[item] || raise(SimpleRSSError, "Cannot normalize an item without its original JSON source")
  SimpleRSS::JsonEntryNormalizer.new(original, document, source_url: source_url).entry
end