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#--
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2010 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/mixin/convert_to_class_name"
require "chef/mixin/language"
module Shell
class ModelWrapper
include Chef::Mixin::ConvertToClassName
attr_reader :model_symbol
def initialize(model_class, symbol=nil)
@model_class = model_class
@model_symbol = symbol || convert_to_snake_case(model_class.name, "Chef").to_sym
end
def search(query)
return all if query.to_s == "all"
results = []
Chef::Search::Query.new.search(@model_symbol, format_query(query)) do |obj|
if block_given?
results << yield(obj)
else
results << obj
end
end
results
end
alias :find :search
def all(&block)
all_objects = list_objects
block_given? ? all_objects.map(&block) : all_objects
end
alias :list :all
def show(obj_id)
@model_class.load(obj_id)
end
alias :load :show
def transform(what_to_transform, &block)
if what_to_transform == :all
objects_to_transform = list_objects
else
objects_to_transform = search(what_to_transform)
end
objects_to_transform.each do |obj|
if result = yield(obj)
obj.save
end
end
end
alias :bulk_edit :transform
private
# paper over inconsistencies in the model classes APIs, and return the objects
# the user wanted instead of the URI=>object stuff
def list_objects
objects = @model_class.method(:list).arity == 0? @model_class.list : @model_class.list(true)
objects.map { |obj| Array(obj).find {|o| o.kind_of?(@model_class)} }
end
def format_query(query)
if query.respond_to?(:keys)
query.map { |key, value| "#{key}:#{value}" }.join(" AND ")
else
query
end
end
end
class NamedDataBagWrapper < ModelWrapper
def initialize(databag_name)
@model_symbol = @databag_name = databag_name
end
alias :list :all
def show(item)
Chef::DataBagItem.load(@databag_name, item)
end
private
def list_objects
all_items = []
Chef::Search::Query.new.search(@databag_name) do |item|
all_items << item
end
all_items
end
end
end
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