Class: WeatherFetcher::Provider::OpenWeatherMap

Inherits:
HtmlBasedProvider show all
Defined in:
lib/weather_fetcher/providers/html_based/open_weather_map.rb

Constant Summary

Constants inherited from HtmlBasedProvider

HtmlBasedProvider::TYPE, HtmlBasedProvider::USER_AGENT

Constants inherited from WeatherFetcher::Provider

HOUR, TYPE

Instance Attribute Summary

Attributes inherited from WeatherFetcher::Provider

#defs, #logger, #weathers

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from HtmlBasedProvider

#fetch_and_process_single, #fetch_url, #fetch_url_old

Methods inherited from WeatherFetcher::Provider

#fetch, #fetch_and_process_single, #initialize, #provider_name, #provider_params, short_class_name, #short_class_name, #store_city_definition, #store_time_costs, #unix_time_today

Constructor Details

This class inherits a constructor from WeatherFetcher::Provider

Class Method Details

.api ⇒ Object 



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 24

def self.api
  return nil unless defined?(@@api)
  @@api
end

.api=(_api) ⇒ Object

This provider could use API key but this version won’t



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 20

def self.api=(_api)
  @@api = _api
end

.provider_name ⇒ Object 



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 9

def self.provider_name
  "OpenWeatherMap"
end

.weather_updated_every ⇒ Object

How often weather is updated



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 14

def self.weather_updated_every
  12*HOUR - 240
end

Instance Method Details

#can_fetch?(p) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 34

def can_fetch?(p)
  begin
    url(p).nil? == false
  rescue
    false
  end
end

#process(string) ⇒ Object 



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 42

def process(string)
  result = JSON.parse(string)

  # fix for empty response
  return if result.nil? or result["main"].nil? or result["main"]["temp"].nil?

  current_time = Time.mktime(
    Time.now.year,
    Time.now.month,
    Time.now.day,
    Time.now.hour
  )

  h = {
    :temperature => result["main"]["temp"].to_f,
    :wind => result["wind"]["speed"].to_f,
    :pressure => result["main"]["pressure"].to_f,
    :rain => nil,
    :snow => nil,
    :provider => self.class.provider_name,

    :cloud_cover => nil,
    :humidity => result["main"]["humidity"].to_i,
    :visibility => nil,

    :wwo_type => :current,
    :time_created => Time.now,
    :time_from => current_time,
    :time_to => current_time + 3600
  }

  return WeatherData.factory(h)
end

#url(p) ⇒ Object

Url for current provider



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map.rb', line 30

def url(p)
  "http://api.openweathermap.org/data/2.5/weather?lat=#{p[:coords][:lat]}&lon=#{p[:coords][:lon]}&units=metric"
end