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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2012 Opscode, 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.
#
require 'chef/chef_fs/file_system/base_fs_object'
require 'chef/chef_fs/file_system/not_found_error'
require 'chef/role'
require 'chef/node'
class Chef
module ChefFS
module FileSystem
class RestListEntry < BaseFSObject
def initialize(name, parent, exists = nil)
super(name, parent)
@exists = exists
end
def api_path
if name.length < 5 || name[-5,5] != ".json"
raise "Invalid name #{path}: must end in .json"
end
api_child_name = name[0,name.length-5]
"#{parent.api_path}/#{api_child_name}"
end
def environment
parent.environment
end
def exists?
if @exists.nil?
begin
@exists = parent.children.any? { |child| child.name == name }
rescue Chef::ChefFS::FileSystem::NotFoundError
@exists = false
end
end
@exists
end
def delete(recurse)
begin
rest.delete_rest(api_path)
rescue Net::HTTPServerException
if $!.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new($!), "#{path_for_printing} not found"
else
raise
end
end
end
def read
Chef::JSONCompat.to_json_pretty(chef_object.to_hash)
end
def chef_object
begin
# REST will inflate the Chef object using json_class
rest.get_rest(api_path)
rescue Net::HTTPServerException
if $!.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new($!), "#{path_for_printing} not found"
else
raise
end
end
end
def compare_to(other)
begin
other_value = other.read
rescue Chef::ChefFS::FileSystem::NotFoundError
return [ nil, nil, :none ]
end
begin
value = chef_object.to_hash
rescue Chef::ChefFS::FileSystem::NotFoundError
return [ false, :none, other_value ]
end
are_same = (value == Chef::JSONCompat.from_json(other_value, :create_additions => false))
[ are_same, Chef::JSONCompat.to_json_pretty(value), other_value ]
end
def rest
parent.rest
end
def write(file_contents)
json = Chef::JSONCompat.from_json(file_contents).to_hash
base_name = name[0,name.length-5]
if json['name'] != base_name
raise "Name in #{path_for_printing}/#{name} must be '#{base_name}' (is '#{json['name']}')"
end
begin
rest.put_rest(api_path, json)
rescue Net::HTTPServerException
if $!.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new($!), "#{path_for_printing} not found"
else
raise
end
end
end
end
end
end
end
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