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Contents
module MusicBrainz
class Configuration
attr_accessor :app_name, :app_version, :contact,
:web_service_url,
:query_interval, :tries_limit,
:cache_path, :perform_caching
DEFAULT_WEB_SERVICE_URL = "http://musicbrainz.org/ws/2/"
DEFAULT_QUERY_INTERVAL = 1.5
DEFAULT_TRIES_LIMIT = 5
DEFAULT_CACHE_PATH = File.join(File.dirname(__FILE__), "..", "tmp", "cache")
DEFAULT_PERFORM_CACHING = false
def initialize
@web_service_url = DEFAULT_WEB_SERVICE_URL
@query_interval = DEFAULT_QUERY_INTERVAL
@tries_limit = DEFAULT_TRIES_LIMIT
@cache_path = DEFAULT_CACHE_PATH
@perform_caching = DEFAULT_PERFORM_CACHING
end
def valid?
%w[ app_name app_version contact ].each do |param|
unless instance_variable_defined?(:"@#{param}")
raise Exception.new("Application identity parameter '#{param}' missing")
end
end
unless tries_limit.nil? && query_interval.nil?
raise Exception.new("'tries_limit' parameter must be 1 or greater") if tries_limit.to_i < 1
raise Exception.new("'query_interval' parameter must be greater than zero") if query_interval.to_f < 0
end
if perform_caching
raise Exception.new("'cache_path' parameter must be set") if cache_path.nil?
end
true
end
end
module Configurable
def configure
raise Exception.new("Configuration block missing") unless block_given?
yield @config ||= MusicBrainz::Configuration.new
config.valid?
end
def config
raise Exception.new("Configuration missing") unless instance_variable_defined?(:@config)
@config
end
def apply_test_configuration!
configure do |c|
c.app_name = "gem musicbrainz (development mode)"
c.app_version = MusicBrainz::VERSION
c.contact = `git config user.email`.chomp
end
end
end
extend Configurable
end
Version data entries
7 entries across 7 versions & 1 rubygems