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util.rb
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util.rb
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require 'json'
require 'logger'
module Bridge
module Util #:nodoc: all
@log = Logger.new(STDOUT)
def self.generate_guid
chars = (('a'..'z').to_a + (0..9).to_a)
(0...12).map{ chars[rand(26)] }.join
end
def self.stringify obj
JSON::generate obj
end
def self.parse str
JSON::parse str
end
def self.info msg
@log.info msg
end
def self.warn msg
@log.warn msg
end
def self.error msg
@log.error msg
end
def self.set_log_level level
if level > 2
@log.level = Logger::INFO
elsif level == 2
@log.level = Logger::WARN
elsif level == 1
@log.level = Logger::ERROR
else
@log.level = Logger::FATAL
end
end
def self.ref_callback ref
CallbackReference.new ref do |*args, &blk|
args << blk if blk
self.call *args
end
end
def self.find_ops obj
if obj.is_a? Module
return obj.methods false
else
return obj.class.instance_methods false
end
end
class CallbackReference < Proc
def initialize ref
@ref = ref
end
def callback *args, &blk
args << blk if blk
@ref.callback *args
end
def call *args, &blk
args << blk if blk
@ref.callback *args
end
def method atom
if atom.to_s == 'callback'
self
else
Class.method atom
end
end
def methods bool
[:callback]
end
def to_dict op = nil
@ref.to_dict op
end
def respond_to? atom
atom == :callback || atom == :to_dict || Class.respond_to?(atom)
end
end
end
end