Module: Deltacloud::Validation

Included in:
BaseDriver::Operation, Sinatra::Rabbit::Operation
Defined in:
lib/deltacloud/validation.rb

Defined Under Namespace

Classes: Failure, Param

Instance Method Summary collapse

Instance Method Details

#add_params(new) ⇒ Object

Add the parameters in hash new to already existing parameters. If new contains a parameter with an already existing name, the old definition is clobbered.



49
50
51
52
53
 
# File 'lib/deltacloud/validation.rb', line 49

def add_params(new)
  # We do not check for duplication on purpose: multiple calls
  # to add_params should be cumulative
  new.each { |p|  @params[p.name] = p }
end

#each_param(&block) ⇒ Object 



55
56
57
 
# File 'lib/deltacloud/validation.rb', line 55

def each_param(&block)
  params.each_value { |p| yield p }
end

#param(*args) ⇒ Object

Raises:

  • (DuplicateParamException) 


35
36
37
38
39
 
# File 'lib/deltacloud/validation.rb', line 35

def param(*args)
  raise DuplicateParamException if params[args[0]]
  p = Param.new(args)
  params[p.name] = p
end

#params ⇒ Object 



41
42
43
44
 
# File 'lib/deltacloud/validation.rb', line 41

def params
  @params ||= {}
  @params
end

#validate(values) ⇒ Object 



59
60
61
62
63
64
65
66
67
68
69
 
# File 'lib/deltacloud/validation.rb', line 59

def validate(values)
  each_param do |p|
    if p.required? and not values[p.name]
      raise Failure.new(p, "Required parameter #{p.name} not found")
    end
    if values[p.name] and not p.options.empty? and
        not p.options.include?(values[p.name])
      raise Failure.new(p, "Parameter #{p.name} has value #{values[p.name]} which is not in #{p.options.join(", ")}")
    end
  end
end