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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Author:: Nuo Yan (<nuo@opscode.com>)
# Author:: Christopher Brown (<cb@opscode.com>)
# Copyright:: Copyright (c) 2009 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/config'
require 'chef/mixin/params_validate'
require 'chef/mixin/from_file'
require 'chef/couchdb'
require 'chef/index_queue'
require 'chef/data_bag'
require 'extlib'
require 'chef/json'
class Chef
class DataBagItem
include Chef::Mixin::FromFile
include Chef::Mixin::ParamsValidate
include Chef::IndexQueue::Indexable
DESIGN_DOCUMENT = {
"version" => 1,
"language" => "javascript",
"views" => {
"all" => {
"map" => <<-EOJS
function(doc) {
if (doc.chef_type == "data_bag_item") {
emit(doc.name, doc);
}
}
EOJS
},
"all_id" => {
"map" => <<-EOJS
function(doc) {
if (doc.chef_type == "data_bag_item") {
emit(doc.name, doc.name);
}
}
EOJS
}
}
}
attr_accessor :couchdb_rev, :couchdb_id, :couchdb
attr_reader :raw_data
# Create a new Chef::DataBagItem
def initialize(couchdb=nil)
@couchdb_rev = nil
@couchdb_id = nil
@data_bag = nil
@raw_data = Mash.new
@couchdb = couchdb || Chef::CouchDB.new
end
def chef_server_rest
Chef::REST.new(Chef::Config[:chef_server_url])
end
def self.chef_server_rest
Chef::REST.new(Chef::Config[:chef_server_url])
end
def raw_data
@raw_data
end
def raw_data=(new_data)
raise Exceptions::ValidationFailed, "Data Bag Items must contain a Hash or Mash!" unless new_data.kind_of?(Hash) || new_data.kind_of?(Mash)
raise Exceptions::ValidationFailed, "Data Bag Items must have an id key in the hash! #{new_data.inspect}" unless new_data.has_key?("id")
raise Exceptions::ValidationFailed, "Data Bag Item id does not match alphanumeric/-/_!" unless new_data["id"] =~ /^[\-[:alnum:]_]+$/
@raw_data = new_data
end
def data_bag(arg=nil)
set_or_return(
:data_bag,
arg,
:regex => /^[\-[:alnum:]_]+$/
)
end
def name
object_name
end
def object_name
raise Exceptions::ValidationFailed, "You must have an 'id' or :id key in the raw data" unless raw_data.has_key?('id')
raise Exceptions::ValidationFailed, "You must have declared what bag this item belongs to!" unless data_bag
id = raw_data['id']
"data_bag_item_#{data_bag}_#{id}"
end
def self.object_name(data_bag_name, id)
"data_bag_item_#{data_bag_name}_#{id}"
end
def to_hash
result = self.raw_data
result["chef_type"] = "data_bag_item"
result["data_bag"] = self.data_bag
result["_rev"] = @couchdb_rev if @couchdb_rev
result
end
# Serialize this object as a hash
def to_json(*a)
result = {
"name" => self.object_name,
"json_class" => self.class.name,
"chef_type" => "data_bag_item",
"data_bag" => self.data_bag,
"raw_data" => self.raw_data
}
result["_rev"] = @couchdb_rev if @couchdb_rev
result.to_json(*a)
end
# Create a Chef::DataBagItem from JSON
def self.json_create(o)
bag_item = new
bag_item.data_bag(o["data_bag"])
o.delete("data_bag")
o.delete("chef_type")
o.delete("json_class")
o.delete("name")
if o.has_key?("_rev")
bag_item.couchdb_rev = o["_rev"]
o.delete("_rev")
end
if o.has_key?("_id")
bag_item.couchdb_id = o["_id"]
bag_item.index_id = bag_item.couchdb_id
o.delete("_id")
end
bag_item.raw_data = Mash.new(o["raw_data"])
bag_item
end
# The Data Bag Item behaves like a hash - we pass all that stuff along to @raw_data.
def method_missing(method_symbol, *args, &block)
self.raw_data.send(method_symbol, *args, &block)
end
# Load a Data Bag Item by name from CouchDB
def self.cdb_load(data_bag, name, couchdb=nil)
(couchdb || Chef::CouchDB.new).load("data_bag_item", object_name(data_bag, name))
end
# Load a Data Bag Item by name via RESTful API
def self.load(data_bag, name)
Chef::REST.new(Chef::Config[:chef_server_url]).get_rest("data/#{data_bag}/#{name}")
end
# Remove this Data Bag Item from CouchDB
def cdb_destroy
Chef::Log.debug "destroying data bag item: #{self.inspect}"
@couchdb.delete("data_bag_item", object_name, @couchdb_rev)
end
def destroy(data_bag=data_bag, databag_item=name)
chef_server_rest.delete_rest("data/#{data_bag}/#{databag_item}")
end
# Save this Data Bag Item to CouchDB
def cdb_save
@couchdb_rev = @couchdb.store("data_bag_item", object_name, self)["rev"]
end
# Save this Data Bag Item via RESTful API
def save(item_id=@raw_data['id'])
r = chef_server_rest
begin
r.put_rest("data/#{data_bag}/#{item_id}", @raw_data)
rescue Net::HTTPServerException => e
raise e unless e.response.code == "404"
r.post_rest("data/#{data_bag}", @raw_data)
end
self
end
# Create this Data Bag Item via RESTful API
def create
chef_server_rest.post_rest("data/#{data_bag}", @raw_data)
self
end
# Set up our CouchDB design document
def self.create_design_document(couchdb=nil)
(couchdb || Chef::CouchDB.new).create_design_document("data_bag_items", DESIGN_DOCUMENT)
end
# As a string
def to_s
"data_bag_item[#{id}]"
end
def pretty_print(pretty_printer)
pretty_printer.pp({"data_bag_item('#{data_bag}', '#{id}')" => self.to_hash})
end
def id
@raw_data['id']
end
end
end