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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_dir'
require 'chef/chef_fs/file_system/rest_list_entry'
require 'chef/chef_fs/file_system/not_found_error'
class Chef
module ChefFS
module FileSystem
class RestListDir < BaseFSDir
def initialize(name, parent, api_path = nil, data_handler = nil)
super(name, parent)
@api_path = api_path || (parent.api_path == "" ? name : "#{parent.api_path}/#{name}")
@data_handler = data_handler
end
attr_reader :api_path
attr_reader :data_handler
def can_have_child?(name, is_dir)
name =~ /\.json$/ && !is_dir
end
def children
begin
@children ||= root.get_json(api_path).keys.sort.map do |key|
make_child_entry("#{key}.json", true)
end
rescue Timeout::Error => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e), "Timeout retrieving children: #{e}"
rescue Net::HTTPServerException => e
if $!.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
else
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e), "HTTP error retrieving children: #{e}"
end
end
end
def create_child(name, file_contents)
begin
object = Chef::JSONCompat.parse(file_contents)
rescue Chef::Exceptions::JSON::ParseError => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Parse error reading JSON creating child '#{name}': #{e}"
end
result = make_child_entry(name, true)
if data_handler
object = data_handler.normalize_for_post(object, result)
data_handler.verify_integrity(object, result) do |error|
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self), "Error creating '#{name}': #{error}"
end
end
begin
rest.post(api_path, object)
rescue Timeout::Error => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Timeout creating '#{name}': #{e}"
rescue Net::HTTPServerException => e
if e.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, e)
elsif $!.response.code == "409"
raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, self, e), "Failure creating '#{name}': #{path}/#{name} already exists"
else
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:create_child, self, e), "Failure creating '#{name}': #{e.message}"
end
end
@children = nil
result
end
def org
parent.org
end
def environment
parent.environment
end
def rest
parent.rest
end
def make_child_entry(name, exists = nil)
@children.select { |child| child.name == name }.first if @children
RestListEntry.new(name, self, exists)
end
end
end
end
end
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