Module: WurflDevice::Cache

Defined in:
lib/wurfl_device/cache.rb

Defined Under Namespace

Classes: Devices, Entries, Status, UserAgents, UserAgentsManufacturers, UserAgentsMatched

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.storage ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 84

def storage
  @storage ||= Redis.new(:db => 7)
end

Class Method Details

.build_capabilities(device_id) ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 165

def build_capabilities(device_id)
  capabilities = Capability.new

  actual_capabilities = MessagePack.unpack(Devices.get(device_id).force_encoding('US-ASCII')) rescue nil

  return capabilities if actual_capabilities.nil?

  capabilities['fall_back_tree'] ||= Array.new

  if !actual_capabilities['fall_back'].nil? && !actual_capabilities['fall_back'].empty? && actual_capabilities['fall_back'] != 'root'
    fall_back = build_capabilities(actual_capabilities['fall_back'])
    if !fall_back.nil? && !fall_back['id'].nil? && !fall_back['id'].empty?
      capabilities['fall_back_tree'].unshift(fall_back['id'])
      fall_back.each_pair do |key, value|
        if value.kind_of?(Hash)
          capabilities[key] ||= Capability.new
          value.each_pair do |k, v|
            capabilities[key][k] = v
          end
        elsif value.is_a?(Array)
          capabilities[key] ||= Array.new
          capabilities[key] |= value
        else
          capabilities[key] = value
        end
      end
    end
  end

  actual_capabilities.each_pair do |key, value|
    if value.kind_of?(Hash)
      capabilities[key] ||= Capability.new
      value.each_pair do |k, v|
        capabilities[key][k] = v
      end
    else
      capabilities[key] = value
    end
  end

  capabilities
end

.clear ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 88

def clear
  Status.clear
  Devices.clear
  UserAgents.clear
  UserAgentsManufacturers.clear
end

.initialize_cache(xml_file) ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 99

def initialize_cache(xml_file)
  version_list = Array.new

  Status.uninitialize!
  XmlLoader.load_xml_file(xml_file) do |capabilities|
    version = capabilities.delete(:version)
    version_list << version unless version.nil?

    device_id = capabilities['id']
    next if device_id.nil? || device_id.empty?

    user_agent = capabilities['user_agent']
    user_agent = Settings::GENERIC if user_agent.nil? || user_agent.empty?
    user_agent.strip!

    fall_back = capabilities['fall_back']
    fall_back = '' if fall_back.nil?
    fall_back.strip!

    user_agent = UserAgent.new user_agent
    UserAgents.set user_agent, device_id
    unless user_agent =~ /^DO_NOT_MATCH/i
      UserAgentsManufacturers.hset user_agent.manufacturer, user_agent, device_id
    end

    Devices.set device_id, capabilities.to_msgpack
  end

  version_list.each do |ver|
    Status.hset 'version', ver, 1
  end
  Status.set 'last_updated', Time.now

  Status.initialize!
end

.initialized? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wurfl_device/cache.rb', line 95

def initialized?
  Status.initialized?
end

.rebuild_user_agents ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 135

def rebuild_user_agents
  UserAgents.clear
  UserAgentsManufacturers.clear
  Devices.entries.each do |device_id|
    device = MessagePack.unpack(Devices.get(device_id).force_encoding('US-ASCII'))
    user_agent = UserAgent.new device['user_agent']
    UserAgents.set user_agent, device_id
    unless user_agent =~ /^DO_NOT_MATCH/i
      UserAgentsManufacturers.hset user_agent.manufacturer, user_agent, device_id
    end
  end
  Status.set 'last_updated', Time.now
end

.update_actual_capabilities(user_agent, capabilities) ⇒ Object 



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# File 'lib/wurfl_device/cache.rb', line 149

def update_actual_capabilities(user_agent, capabilities)
  capabilities.each_pair do |key, value|
    if value.kind_of?(Hash)
      value.each_pair do |k, v|
        UserAgents.set user_agent, "#{key}:#{k}", MessagePack.pack(v)
      end
    else
      if ['user_agent', 'fall_back', 'id'].include?(key)
        UserAgents.set user_agent, key, value
      else
        UserAgents.set user_agent, key, MessagePack.pack(value)
      end
    end
  end
end