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Contents
module Barometer
#
# Base Format Class
#
# Fromats are used to determine if a query is of a certain
# format, how to convert to and from that format
# and what the country_code is for that format (if possible).
# Some formats require external Web Services to help
# in the converision. (ie :weather_id -> :geocode)
#
class Query::Format
# stubs
#
def self.regex; raise NotImplementedError; end
def self.format; raise NotImplementedError; end
# defaults
#
def self.to(query=nil,country=nil); nil; end
def self.country_code(query=nil); nil; end
def self.convertable_formats; []; end
# is the query of this format?
#
def self.is?(query=nil)
raise ArgumentError unless query.is_a?(String)
return !(query =~ self.regex).nil?
end
# does the format support conversion from the given query?
#
def self.converts?(query=nil)
return false unless is_a_query?(query)
self.convertable_formats.include?(query.format)
end
# is the object a Barometer::Query?
#
def self.is_a_query?(object=nil)
return false unless object
object.is_a?(Barometer::Query)
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems