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require 'singleton'
require 'geocoder/configuration_hash'
module Geocoder
##
# Configuration options should be set by passing a hash:
#
# Geocoder.configure(
# :timeout => 5,
# :lookup => :yandex,
# :api_key => "2a9fsa983jaslfj982fjasd",
# :units => :km
# )
#
def self.configure(options = nil, &block)
if !options.nil?
Configuration.instance.configure(options)
end
end
##
# Read-only access to the singleton's config data.
#
def self.config
Configuration.instance.data
end
##
# Read-only access to lookup-specific config data.
#
def self.config_for_lookup(lookup_name)
data = config.clone
data.reject!{ |key,value| !Configuration::OPTIONS.include?(key) }
if config.has_key?(lookup_name)
data.merge!(config[lookup_name])
end
data
end
##
# Merge the given hash into a lookup's existing configuration.
#
def self.merge_into_lookup_config(lookup_name, options)
base = Geocoder.config[lookup_name]
Geocoder.configure(lookup_name => base.merge(options))
end
class Configuration
include Singleton
OPTIONS = [
:timeout,
:lookup,
:ip_lookup,
:language,
:http_headers,
:use_https,
:http_proxy,
:https_proxy,
:api_key,
:cache,
:cache_prefix,
:always_raise,
:units,
:distances,
:basic_auth,
:logger,
:kernel_logger_level
]
attr_accessor :data
def self.set_defaults
instance.set_defaults
end
OPTIONS.each do |o|
define_method o do
@data[o]
end
define_method "#{o}=" do |value|
@data[o] = value
end
end
def configure(options)
@data.rmerge!(options)
end
def initialize # :nodoc
@data = Geocoder::ConfigurationHash.new
set_defaults
end
def set_defaults
# geocoding options
@data[:timeout] = 3 # geocoding service timeout (secs)
@data[:lookup] = :nominatim # name of street address geocoding service (symbol)
@data[:ip_lookup] = :ipinfo_io # name of IP address geocoding service (symbol)
@data[:language] = :en # ISO-639 language code
@data[:http_headers] = {} # HTTP headers for lookup
@data[:use_https] = false # use HTTPS for lookup requests? (if supported)
@data[:http_proxy] = nil # HTTP proxy server (user:pass@host:port)
@data[:https_proxy] = nil # HTTPS proxy server (user:pass@host:port)
@data[:api_key] = nil # API key for geocoding service
@data[:cache] = nil # cache object (must respond to #[], #[]=, and #keys)
@data[:cache_prefix] = "geocoder:" # prefix (string) to use for all cache keys
@data[:basic_auth] = {} # user and password for basic auth ({:user => "user", :password => "password"})
@data[:logger] = :kernel # :kernel or Logger instance
@data[:kernel_logger_level] = ::Logger::WARN # log level, if kernel logger is used
# exceptions that should not be rescued by default
# (if you want to implement custom error handling);
# supports SocketError and Timeout::Error
@data[:always_raise] = []
# calculation options
@data[:units] = :mi # :mi or :km
@data[:distances] = :linear # :linear or :spherical
end
instance_eval(OPTIONS.map do |option|
o = option.to_s
<<-EOS
def #{o}
instance.data[:#{o}]
end
def #{o}=(value)
instance.data[:#{o}] = value
end
EOS
end.join("\n\n"))
end
end
|
