Class: RakeFactory::ParameterSet

Inherits:
Object
  • Object
show all
Defined in:
lib/rake_factory/parameter_set.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ParameterSet

Returns a new instance of ParameterSet.



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# File 'lib/rake_factory/parameter_set.rb', line 8

def initialize
  @parameter_set = {}
end

Instance Method Details

#add(name, options) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 12

def add(name, options)
  parameter = Parameter.new(name, options)
  @parameter_set[parameter.name] = parameter
  parameter
end

#apply_defaults_to(instance) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 30

def apply_defaults_to(instance)
  @parameter_set.each_value do |parameter|
    parameter.apply_default_to(instance)
  end
end

#each(&block) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 22

def each(&block)
  @parameter_set.values.each(&block)
end

#enforce_requirements_on(instance) ⇒ Object

Raises:



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# File 'lib/rake_factory/parameter_set.rb', line 36

def enforce_requirements_on(instance)
  dissatisfied = @parameter_set.values.reject do |parameter|
    parameter.satisfied_by?(instance)
  end
  return if dissatisfied.empty?

  names = dissatisfied.map(&:name)
  names_string = names.join(',')
  pluralisation_string = names.length > 1 ? 's' : ''

  raise RequiredParameterUnset,
        "Required parameter#{pluralisation_string} #{names_string} unset."
end

#find(name) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 18

def find(name)
  @parameter_set[name.to_sym]
end

#read_from(instance) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 50

def read_from(instance)
  @parameter_set.reduce({}) do |acc, (key, parameter)|
    acc.merge({ key => parameter.read_from(instance) })
  end
end

#update_default_for(name, value) ⇒ Object 



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# File 'lib/rake_factory/parameter_set.rb', line 26

def update_default_for(name, value)
  find(name).default = value
end