Class: ObjectifiedEnvironments::EnvironmentBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/objectified_environments/environment_builder.rb

Instance Method Summary collapse

Constructor Details

#initialize(data_provider) ⇒ EnvironmentBuilder

Returns a new instance of EnvironmentBuilder.

Raises:

  • (ArgumentError) 


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# File 'lib/objectified_environments/environment_builder.rb', line 5

def initialize(data_provider)
  @rails_env = normalize(data_provider.rails_env)
  @user_name = normalize(data_provider.user_name)
  @host_name = normalize(data_provider.host_name)

  raise ArgumentError, "@rails_env is required: #{rails_env.inspect}" unless @rails_env && @rails_env.strip.length > 0
end

Instance Method Details

#environment ⇒ Object 



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# File 'lib/objectified_environments/environment_builder.rb', line 13

def environment
  candidate_names = [ ]

  candidate_names << class_name_for_candidate(@rails_env, @user_name, @host_name) if @user_name && @host_name
  candidate_names << class_name_for_candidate(@rails_env, nil, @host_name) if @host_name
  candidate_names << class_name_for_candidate(@rails_env, @user_name, @nil) if @user_name
  candidate_names << class_name_for_candidate(@rails_env, nil, nil)

  raise "This should be impossible: we should always have a candidate" unless candidate_names.length > 0

  out = nil
  candidate_names.each do |candidate_name|
    klass = begin
      candidate_name.constantize
    rescue NameError
      nil
    end

    return instantiate_from_class(klass) if klass
  end

  no_environment_found!(candidate_names)
end