Class: ArrayGetItemHandler

Inherits:
AbstractCommandHandler show all
Defined in:
lib/javonet-ruby-sdk/core/handler/command_handler/array_get_item_handler.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/Linux/X64/core/handler/command_handler/array_get_item_handler.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/MacOs/X64/core/handler/command_handler/array_get_item_handler.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/Windows/X64/core/handler/command_handler/array_get_item_handler.rb

Instance Method Summary collapse

Methods inherited from AbstractCommandHandler

#handle_command, #iterate

Constructor Details

#initialize ⇒ ArrayGetItemHandler

Returns a new instance of ArrayGetItemHandler.



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# File 'lib/javonet-ruby-sdk/core/handler/command_handler/array_get_item_handler.rb', line 4

def initialize
  @required_parameters_count = 2
end

Instance Method Details

#get_item_array(command) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/handler/command_handler/array_get_item_handler.rb', line 26

def get_item_array(command)
  array = command.payload[0]
  indexes = if command.payload[1].is_a? Array
              command.payload[1]
            else
              command.payload[1..]
            end

  if array.is_a? Array
    indexes.each { |i|
      array = array[i]
    }
    array
  end
end

#get_item_hash(command) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/handler/command_handler/array_get_item_handler.rb', line 42

def get_item_hash(command)
  hash = command.payload[0]
  key = command.payload[1]
  hash[key]
end

#process(command) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/handler/command_handler/array_get_item_handler.rb', line 8

def process(command)
  begin
    if command.payload.length < @required_parameters_count
      raise ArgumentError.new "Array get item parameters mismatch"
    end

    if command.payload[0].is_a? Array
      return get_item_array(command)
    elsif command.payload[0].is_a? Hash
      return get_item_hash(command)
    else
      raise ArgumentError.new "Cannot get element from %s" % [command.payload[0]]
    end
  rescue Exception => e
    e
  end
end