Module: Traffic

Defined in:
lib/traffic.rb,
lib/traffic/info.rb,
lib/traffic/version.rb,
lib/traffic/provider.rb,
lib/traffic/providers/anwb.rb,
lib/traffic/providers/file_index.rb

Defined Under Namespace

Modules: Providers Classes: Info, InfoItem

Constant Summary collapse

MAIN_ATTRIBUTES = 
[:timestamp, :count, :size, :traffic]
ITEM_ATTRIBUTES = 
[:road, :from, :to, :from_location, :to_location, :location, :length, :description, :cause, :status]
VERSION = 
"0.0.6"

Class Method Summary collapse

Class Method Details

.from(provider_name, archived_data = nil) ⇒ Object 



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# File 'lib/traffic.rb', line 6

def self.from(provider_name, archived_data=nil)
  provider = Provider(provider_name).new(archived_data)
  info = Info.new
  
  MAIN_ATTRIBUTES.each do |attr|
    if provider.respond_to?(attr)
      info.send("#{attr}=", provider.send(attr))
    else
      raise "attribute missing: #{attr}. the selected provider ('#{provider_name}') does not supply all required attributes"
    end
  end
  
  provider.each_item do |item|
    info_item = InfoItem.new
    ITEM_ATTRIBUTES.each do |attr|
      if item.respond_to?(attr)
        info_item.send("#{attr}=", item.send(attr))
      else
        raise "attribute missing: #{attr}. the selected provider item ('#{provider_name}') does not supply all required attributes"
      end
    end
    info.items << info_item
  end
  
  info
end

.Provider(name) ⇒ Object 



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# File 'lib/traffic/provider.rb', line 5

def self.Provider(name)
  # camelcase the name
  Traffic::Providers.const_get "#{name.to_s.gsub(/(?:^|_)(.)/) { $1.upcase }}"
rescue NameError => e
  raise "unknown provider: #{name}"
end