Class: ChefZero::DataStore::DefaultFacade

Inherits:
InterfaceV2 show all
Defined in:
lib/chef_zero/data_store/default_facade.rb

Overview

The DefaultFacade exists to layer defaults on top of an existing data store. When you create an org, you just create the directory itself: the rest of the org (such as environments/_default) will not actually exist anywhere, but when you get(/organizations/org/environments/_default), the DefaultFacade will create one for you on the fly.

acls in particular are instantiated on the fly using this method.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from InterfaceV2

#interface_version

Methods inherited from InterfaceV1

#interface_version

Constructor Details

#initialize(real_store, single_org, osc_compat, superusers = nil) ⇒ DefaultFacade

Returns a new instance of DefaultFacade.



16
17
18
19
20
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 16

def initialize(real_store, single_org, osc_compat, superusers = nil)
  @real_store = real_store
  @default_creator = ChefData::DefaultCreator.new(self, single_org, osc_compat, superusers)
  clear
end

Instance Attribute Details

#default_creator ⇒ Object (readonly)

Returns the value of attribute default_creator.



23
24
25
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 23

def default_creator
  @default_creator
end

#real_store ⇒ Object (readonly)

Returns the value of attribute real_store.



22
23
24
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 22

def real_store
  @real_store
end

Instance Method Details

#clear ⇒ Object 



25
26
27
28
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 25

def clear
  real_store.clear if real_store.respond_to?(:clear)
  default_creator.clear
end

#create(path, name, data, *options) ⇒ Object 



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 49

def create(path, name, data, *options)
  if default_creator.exists?(path + [ name ]) && !options.include?(:create_dir)
    raise DataAlreadyExistsError.new(path + [name])
  end

  begin
    real_store.create(path, name, data, *options)
  rescue DataNotFoundError
    if default_creator.exists?(path)
      real_store.create(path, name, data, :create_dir, *options)
    else
      raise
    end
  end

  options_hash = options.last.is_a?(Hash) ? options.last : {}
  default_creator.created(path + [ name ], options_hash[:requestor], options.include?(:create_dir))
end

#create_dir(path, name, *options) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 30

def create_dir(path, name, *options)
  if default_creator.exists?(path + [ name ]) && !options.include?(:recursive)
    raise DataAlreadyExistsError.new(path + [name])
  end

  begin
    real_store.create_dir(path, name, *options)
  rescue DataNotFoundError
    if default_creator.exists?(path)
      real_store.create_dir(path, name, :recursive, *options)
    else
      raise
    end
  end

  options_hash = options.last.is_a?(Hash) ? options.last : {}
  default_creator.created(path + [ name ], options_hash[:requestor], options.include?(:recursive))
end

#delete(path, *options) ⇒ Object 



98
99
100
101
102
103
104
105
106
107
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 98

def delete(path, *options)
  deleted = default_creator.deleted(path)
  begin
    real_store.delete(path)
  rescue DataNotFoundError
    unless deleted
      raise
    end
  end
end

#delete_dir(path, *options) ⇒ Object 



109
110
111
112
113
114
115
116
117
118
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 109

def delete_dir(path, *options)
  deleted = default_creator.deleted(path)
  begin
    real_store.delete_dir(path, *options)
  rescue DataNotFoundError
    unless deleted
      raise
    end
  end
end

#exists?(path) ⇒ Boolean

Returns:

  • (Boolean) 


138
139
140
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 138

def exists?(path)
  real_store.exists?(path) || default_creator.exists?(path)
end

#exists_dir?(path) ⇒ Boolean

Returns:

  • (Boolean) 


142
143
144
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 142

def exists_dir?(path)
  real_store.exists_dir?(path) || default_creator.exists?(path)
end

#get(path, request = nil) ⇒ Object 



68
69
70
71
72
73
74
75
76
77
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 68

def get(path, request = nil)
  real_store.get(path, request)
rescue DataNotFoundError
  result = default_creator.get(path)
  if result
    FFI_Yajl::Encoder.encode(result, pretty: true)
  else
    raise
  end
end

#list(path) ⇒ Object 



120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 120

def list(path)
  default_results = default_creator.list(path)
  begin
    real_results = real_store.list(path)
    if default_results
      (real_results + default_results).uniq
    else
      real_results
    end
  rescue DataNotFoundError
    if default_results
      default_results
    else
      raise
    end
  end
end

#set(path, data, *options) ⇒ Object 



79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
 
# File 'lib/chef_zero/data_store/default_facade.rb', line 79

def set(path, data, *options)
  begin
    real_store.set(path, data, *options)
  rescue DataNotFoundError
    if options.include?(:create_dir) ||
        options.include?(:create) && default_creator.exists?(path[0..-2]) ||
        default_creator.exists?(path)
      real_store.set(path, data, :create, :create_dir, *options)
    else
      raise
    end
  end

  if options.include?(:create)
    options_hash = options.last.is_a?(Hash) ? options.last : {}
    default_creator.created(path, options_hash[:requestor], options.include?(:create_dir))
  end
end