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#
# Author:: Tim Hinderliter (<tim@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Wrapper class for interacting with JSON.
autoload :FFI_Yajl, "ffi_yajl"
require_relative "exceptions"
# We're requiring this to prevent breaking consumers using Hash.to_json
require "json" unless defined?(JSON)
class Chef
class JSONCompat
JSON_MAX_NESTING = 1000
class <<self
# API to use to avoid create_additions
def parse(source, opts = {})
FFI_Yajl::Parser.parse(source, opts)
rescue FFI_Yajl::ParseError => e
raise Chef::Exceptions::JSON::ParseError, e.message
end
# Just call the JSON gem's parse method with a modified :max_nesting field
def from_json(source, opts = {})
obj = parse(source, opts)
# JSON gem requires top level object to be a Hash or Array (otherwise
# you get the "must contain two octets" error). Yajl doesn't impose the
# same limitation. For compatibility, we re-impose this condition.
unless obj.is_a?(Hash) || obj.is_a?(Array)
raise Chef::Exceptions::JSON::ParseError, "Top level JSON object must be a Hash or Array. (actual: #{obj.class})"
end
obj
end
def to_json(obj, opts = nil)
FFI_Yajl::Encoder.encode(obj, opts)
rescue FFI_Yajl::EncodeError => e
raise Chef::Exceptions::JSON::EncodeError, e.message
end
def to_json_pretty(obj, opts = nil)
opts ||= {}
options_map = {}
options_map[:pretty] = true
options_map[:indent] = opts[:indent] if opts.key?(:indent)
to_json(obj, options_map).chomp
end
end
end
end
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