Class: CfnDsl::ExternalParameters
- Inherits:
-
Object
- Object
- CfnDsl::ExternalParameters
- Extended by:
- Forwardable
- Defined in:
- lib/cfndsl/external_parameters.rb
Overview
Handles all external parameters
Instance Attribute Summary collapse
-
#parameters ⇒ Object
readonly
Returns the value of attribute parameters.
Class Method Summary collapse
Instance Method Summary collapse
- #add_to_binding(bind, logstream) ⇒ Object
- #get_param(k) ⇒ Object (also: #[])
-
#initialize ⇒ ExternalParameters
constructor
A new instance of ExternalParameters.
- #load_file(fname) ⇒ Object
- #set_param(k, v) ⇒ Object
- #to_h ⇒ Object
Constructor Details
#initialize ⇒ ExternalParameters
Returns a new instance of ExternalParameters.
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# File 'lib/cfndsl/external_parameters.rb', line 26 def initialize @parameters = self.class.defaults.clone end |
Instance Attribute Details
#parameters ⇒ Object (readonly)
Returns the value of attribute parameters.
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# File 'lib/cfndsl/external_parameters.rb', line 8 def parameters @parameters end |
Class Method Details
.current ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 17 def current @current || refresh! end |
.defaults(params = {}) ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 11 def defaults(params = {}) @defaults ||= {} @defaults.merge! params @defaults end |
.refresh! ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 21 def refresh! @current = new end |
Instance Method Details
#add_to_binding(bind, logstream) ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 43 def add_to_binding(bind, logstream) parameters.each_pair do |key, val| logstream.puts("Setting local variable #{key} to #{val}") if logstream bind.eval "#{key} = #{val.inspect}" end end |
#get_param(k) ⇒ Object Also known as: []
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# File 'lib/cfndsl/external_parameters.rb', line 34 def get_param(k) parameters[k.to_sym] end |
#load_file(fname) ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 50 def load_file(fname) format = File.extname fname case format when /ya?ml/ params = YAML.load_file fname when /json/ params = JSON.parse File.read(fname) else raise "Unrecognized extension #{format}" end params.each { |key, val| set_param(key, val) } end |
#set_param(k, v) ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 30 def set_param(k, v) parameters[k.to_sym] = v end |
#to_h ⇒ Object
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# File 'lib/cfndsl/external_parameters.rb', line 39 def to_h parameters end |