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# frozen_string_literal: true
module Aws
module ARNParser
# Parse a string with an ARN format into an {Aws::ARN} object.
# `InvalidARNError` would be raised when encountering a parsing error or the
# ARN object contains invalid components (nil/empty).
#
# @param [String] arn_str
#
# @return [Aws::ARN]
# @see https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html#genref-arns
def self.parse(arn_str)
parts = arn_str.nil? ? [] : arn_str.split(':', 6)
raise Aws::Errors::InvalidARNError if parts.size < 6
# part[0] is "arn"
arn = ARN.new(
partition: parts[1],
service: parts[2],
region: parts[3],
account_id: parts[4],
resource: parts[5]
)
raise Aws::Errors::InvalidARNError unless arn.valid?
arn
end
# Checks whether a String could be a ARN or not. An ARN starts with 'arn:'
# and has at least 6 segments separated by a colon (:).
#
# @param [String] str
#
# @return [Boolean]
def self.arn?(str)
!str.nil? && str.start_with?('arn:') && str.scan(/:/).length >= 5
end
end
end
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