Class: WeatherFetcher::Provider::OpenWeatherMapForecast

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

.provider_name ⇒ Object 



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map_forecast.rb', line 7

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_forecast.rb', line 12

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_forecast.rb', line 21

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_forecast.rb', line 29

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

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

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

  weather_data = Array.new

  result["list"].each do |w|
    h_day = {
      :temperature => w["temp"]["day"].to_f,
      :wind => w["speed"].to_f,
      :pressure => w["pressure"].to_f,
      :rain => nil,
      :snow => nil,
      :provider => self.class.provider_name,

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

      :wwo_type => :forecast,
      :time_created => Time.now,
      :time_from => Time.at(w["dt"].to_i - 6*HOUR),
      :time_to => Time.at(w["dt"].to_i + 6*HOUR)
    }

    h_night = {
      :temperature => w["temp"]["night"].to_f,
      :wind => w["speed"].to_f,
      :pressure => w["pressure"].to_f,
      :rain => nil,
      :snow => nil,
      :provider => self.class.provider_name,

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

      :wwo_type => :forecast,
      :time_created => Time.now,
      :time_from => Time.at(w["dt"].to_i + 6*HOUR),
      :time_to => Time.at(w["dt"].to_i + 18*HOUR)
    }

    weather_data << h_day
    weather_data << h_night
  end


  return WeatherData.factory(weather_data)
end

#url(p) ⇒ Object

Url for current provider



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# File 'lib/weather_fetcher/providers/html_based/open_weather_map_forecast.rb', line 17

def url(p)
  "http://api.openweathermap.org/data/2.5/forecast/daily?lat=#{p[:coords][:lat]}&lon=#{p[:coords][:lon]}&cnt=15&mode=json&units=metric"
end