1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
#
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Christopher Walters (<cw@chef.io>)
# Copyright:: Copyright 2008-2016, Chef Software 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/resource_collection/resource_set"
require "chef/resource_collection/resource_list"
require "chef/resource_collection/resource_collection_serialization"
require "chef/log"
require "forwardable"
##
# ResourceCollection currently handles two tasks:
# 1) Keeps an ordered list of resources to use when converging the node
# 2) Keeps a unique list of resources (keyed as `type[name]`) used for notifications
class Chef
class ResourceCollection
include ResourceCollectionSerialization
extend Forwardable
attr_reader :resource_set, :resource_list
attr_accessor :run_context
protected :resource_set, :resource_list
def initialize(run_context = nil)
@run_context = run_context
@resource_set = ResourceSet.new
@resource_list = ResourceList.new
end
# @param resource [Chef::Resource] The resource to insert
# @param resource_type [String,Symbol] If known, the resource type used in the recipe, Eg `package`, `execute`
# @param instance_name [String] If known, the recource name as used in the recipe, IE `vim` in `package 'vim'`
# This method is meant to be the 1 insert method necessary in the future. It should support all known use cases
# for writing into the ResourceCollection.
def insert(resource, opts = {})
resource_type ||= opts[:resource_type] # Would rather use Ruby 2.x syntax, but oh well
instance_name ||= opts[:instance_name]
resource_list.insert(resource)
if !(resource_type.nil? && instance_name.nil?)
resource_set.insert_as(resource, resource_type, instance_name)
else
resource_set.insert_as(resource)
end
end
def delete(key)
resource_list.delete(key)
resource_set.delete(key)
end
# @deprecated
def []=(index, resource)
Chef::Log.warn("`[]=` is deprecated, use `insert` (which only inserts at the end)")
resource_list[index] = resource
resource_set.insert_as(resource)
end
# @deprecated
def push(*resources)
Chef::Log.warn("`push` is deprecated, use `insert`")
resources.flatten.each do |res|
insert(res)
end
self
end
# @deprecated
alias_method :<<, :insert
# Read-only methods are simple to delegate - doing that below
resource_list_methods = Enumerable.instance_methods +
[:iterator, :all_resources, :[], :each, :execute_each_resource, :each_index, :empty?] -
[:find] # find overridden below
resource_set_methods = [:resources, :keys, :validate_lookup_spec!]
def_delegators :resource_list, *resource_list_methods
def_delegators :resource_set, *resource_set_methods
def lookup_local(key)
resource_set.lookup(key)
end
def find_local(*args)
resource_set.find(*args)
end
def lookup(key)
if run_context.nil?
lookup_local(key)
else
lookup_recursive(run_context, key)
end
end
def find(*args)
if run_context.nil?
find_local(*args)
else
find_recursive(run_context, *args)
end
end
private
def lookup_recursive(rc, key)
rc.resource_collection.resource_set.lookup(key)
rescue Chef::Exceptions::ResourceNotFound
raise if rc.parent_run_context.nil?
lookup_recursive(rc.parent_run_context, key)
end
def find_recursive(rc, *args)
rc.resource_collection.resource_set.find(*args)
rescue Chef::Exceptions::ResourceNotFound
raise if rc.parent_run_context.nil?
find_recursive(rc.parent_run_context, *args)
end
end
end
|
