Module: Amazon::AWS::Error

Defined in:
lib/ruby-paa/aws.rb

Overview

All dynamically generated exceptions occur within this namespace.

Defined Under Namespace

Classes: AWSError

Class Method Summary collapse

Class Method Details

.exception(xml) ⇒ Object 



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# File 'lib/ruby-paa/aws.rb', line 1411

def Error.exception(xml)
	err_class = xml.elements['Code'].text.sub( /^AWS.*\./, '' )
	err_msg = xml.elements['Message'].text

	# Dynamically define a new exception class for this class of error,
	# unless it already exists.
	#
	# Note that Ruby 1.9's Module.const_defined? needs a second parameter
	# of *false*, or it will also search AWSError's ancestors.
	#
	cd_params = [ err_class ]
	cd_params << false if RUBY_VERSION >= '1.9.0'

	unless Amazon::AWS::Error.const_defined?( *cd_params )
	  Amazon::AWS::Error.const_set( err_class, Class.new( AWSError ) )
	end

	# Generate and return a new exception from the relevant class.
	#
	Amazon::AWS::Error.const_get( err_class ).new( err_msg )
end