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require 'set'
require 'oj'
require 'multi_json/adapter'
module MultiJson
module Adapters
# Use the Oj library to dump/load.
class Oj < Adapter
defaults :load, :mode => :strict, :symbolize_keys => false
defaults :dump, :mode => :compat, :time_format => :ruby, :use_to_json => true
# In certain cases OJ gem may throw JSON::ParserError exception instead
# of its own class. Also, we can't expect ::JSON::ParserError and
# ::Oj::ParseError to always be defined, since it's often not the case.
# Because of this, we can't reference those classes directly and have to
# do string comparison instead. This will not catch subclasses, but it
# shouldn't be a problem since the library is not known to be using it
# (at least for now).
class ParseError < ::SyntaxError
WRAPPED_CLASSES = %w[Oj::ParseError JSON::ParserError].to_set.freeze
def self.===(exception)
case exception
when ::SyntaxError
true
else
WRAPPED_CLASSES.include?(exception.class.to_s)
end
end
end
def load(string, options = {})
options[:symbol_keys] = options[:symbolize_keys]
::Oj.load(string, options)
end
case ::Oj::VERSION
when /\A2\./
def dump(object, options = {})
options.merge!(:indent => 2) if options[:pretty]
options[:indent] = options[:indent].to_i if options[:indent]
::Oj.dump(object, options)
end
when /\A3\./
PRETTY_STATE_PROTOTYPE = {
:indent => " ",
:space => " ",
:space_before => "",
:object_nl => "\n",
:array_nl => "\n",
:ascii_only => false,
}
def dump(object, options = {})
options.merge!(PRETTY_STATE_PROTOTYPE.dup) if options.delete(:pretty)
::Oj.dump(object, options)
end
else
fail "Unsupported Oj version: #{::Oj::VERSION}"
end
end
end
end
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