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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2013 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_zero/data_store/data_already_exists_error'
require 'chef_zero/data_store/data_not_found_error'
module ChefZero
module DataStore
class MemoryStore
def initialize
clear
end
def clear
@data = {}
create_dir([], 'organizations')
end
def create_org
# Create containers
org = {
'clients' => {
'chef-validator' => '{ "validator": true }',
'chef-webui' => '{ "admin": true }'
},
'cookbooks' => {},
'data' => {},
'environments' => {
'_default' => '{ "description": "The default Chef environment" }'
},
'file_store' => {
'checksums' => {}
},
'nodes' => {},
'roles' => {},
'sandboxes' => {},
'users' => {
'admin' => '{ "admin": "true" }'
}
}
end
def create_dir(path, name, *options)
parent = _get(path, options.include?(:recursive))
if parent.has_key?(name)
if !options.include?(:recursive)
raise DataAlreadyExistsError.new(path + [name])
end
else
_create_dir(path, parent, name)
end
end
def create(path, name, data, *options)
if !data.is_a?(String)
raise "set only works with strings"
end
parent = _get(path, options.include?(:create_dir))
if parent.has_key?(name)
raise DataAlreadyExistsError.new(path + [name])
end
parent[name] = data
end
def get(path, request=nil)
value = _get(path)
if value.is_a?(Hash)
raise "get() called on directory #{path.join('/')}"
end
value
end
def set(path, data, *options)
if !data.is_a?(String)
raise "set only works with strings: #{path} = #{data.inspect}"
end
# Get the parent
parent = _get(path[0..-2], options.include?(:create_dir))
if !options.include?(:create) && !parent[path[-1]]
raise DataNotFoundError.new(path)
end
parent[path[-1]] = data
end
def delete(path)
parent = _get(path[0,path.length-1])
if !parent.has_key?(path[-1])
raise DataNotFoundError.new(path)
end
if !parent[path[-1]].is_a?(String)
raise "delete only works with strings: #{path}"
end
parent.delete(path[-1])
end
def delete_dir(path, *options)
parent = _get(path[0,path.length-1])
if !parent.has_key?(path[-1])
raise DataNotFoundError.new(path)
end
if !parent[path[-1]].is_a?(Hash)
raise "delete_dir only works with directories: #{path}"
end
parent.delete(path[-1])
end
def list(path)
dir = _get(path)
if !dir.is_a? Hash
raise "list only works with directories (#{path} = #{dir.class}"
end
dir.keys.sort
end
def exists?(path)
begin
get(path)
return true
rescue DataNotFoundError
return false
end
end
def exists_dir?(path)
begin
dir = _get(path)
if !dir.is_a? Hash
raise "exists_dir? only works with directories (#{path} = #{dir.class}"
end
return true
rescue DataNotFoundError
return false
end
end
private
def _get(path, create_dir=false)
value = @data
path.each_with_index do |path_part, index|
if !value.has_key?(path_part)
if create_dir
_create_dir(path[0,index], value, path_part)
else
raise DataNotFoundError.new(path[0,index+1])
end
end
value = value[path_part]
end
value
end
def _create_dir(parent_path, parent, name)
if parent_path == [ 'organizations' ]
parent[name] = create_org
else
parent[name] = {}
end
end
end
end
end
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