Class: Hypertube::Core::Handler::ContextMetadataHandler

Inherits:
AbstractHandler show all
Defined in:
lib/hypertube-ruby-sdk/core/handler/context_metadata_handler.rb

Instance Method Summary collapse

Methods inherited from AbstractHandler

#handle_command, #validate

Constructor Details

#initialize ⇒ ContextMetadataHandler

Returns a new instance of ContextMetadataHandler.



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# File 'lib/hypertube-ruby-sdk/core/handler/context_metadata_handler.rb', line 12

def initialize
  @required_parameters_count = 1
  @get_type_handler = GetTypeHandler.new
  @array_handler = ArrayHandler.new
end

Instance Method Details

#process(command) ⇒ Object 



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# File 'lib/hypertube-ruby-sdk/core/handler/context_metadata_handler.rb', line 18

def process(command)
  validate(command, @required_parameters_count, self.class.name)

  get_type_command = Utils::Command.new(Utils::RuntimeNameHt::RUBY, Utils::CommandType::GET_TYPE, "Graftcode::Context::RequestContext")
  context_type = @get_type_handler.process(get_type_command)
  current_context = context_type.current

  raise "Context metadata payload must contain an array command." if command.payload.nil? || command.payload.empty?

  array_command = command.payload[0]
  if array_command.is_a?(Utils::Command) && array_command.command_type == Utils::CommandType::ARRAY
    values = @array_handler.process(array_command)

    if values.length % 2 != 0
      raise "Context metadata payload must contain key/value pairs."
    end

    headers = {}
    (0...values.length).step(2) do |i|
      key = values[i]
      if key.nil? || key.to_s.strip.empty?
        raise "Context metadata key cannot be null or empty."
      end

      headers[key] = values[i + 1]
    end

    current_context.set_headers(headers)
  else
    raise "Context metadata payload must be an array."
  end

  0
end