Class: ChefZero::ChefData::DefaultCreator

Inherits:
Object
  • Object
show all
Defined in:
lib/chef_zero/chef_data/default_creator.rb

Overview

The DefaultCreator creates default values when you ask for them.

  • It relies on created and deleted being called when things get created and deleted, so that it knows the owners of said objects and knows to eliminate default values on delete.

  • get, list and exists? get data.

Constant Summary collapse

PERMISSIONS = 
%w{create read update delete grant}.freeze
DEFAULT_SUPERUSERS = 
%w{pivotal}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, single_org, osc_compat, superusers = nil) ⇒ DefaultCreator

Returns a new instance of DefaultCreator.



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 13

def initialize(data, single_org, osc_compat, superusers = nil)
  @data = data
  @single_org = single_org
  @osc_compat = osc_compat
  @superusers = superusers || DEFAULT_SUPERUSERS
  clear
end

Instance Attribute Details

#creators ⇒ Object (readonly)

Returns the value of attribute creators.



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 24

def creators
  @creators
end

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 21

def data
  @data
end

#deleted(path) ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 35

def deleted(path)
  # acl deletes mean nothing, they are entirely subservient to their
  # parent object
  if path[0] == "acls" || (path[0] == "organizations" && path[2] == "acls")
    return false
  end

  result = exists?(path)
  @deleted[path] = true
  result
end

#osc_compat ⇒ Object (readonly)

Returns the value of attribute osc_compat.



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 23

def osc_compat
  @osc_compat
end

#single_org ⇒ Object (readonly)

Returns the value of attribute single_org.



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 22

def single_org
  @single_org
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 30

def clear
  @creators = { [] => @superusers }
  @deleted = {}
end

#created(path, creator, create_parents) ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 54

def created(path, creator, create_parents)
  # If a parent has been deleted, we will need to clear that.
  deleted_index = nil
  0.upto(path.size - 1) do |index|
    deleted_index = index if @deleted[path[0..index]]
  end

  # Walk up the tree, setting the creator on anything that doesn't exist
  # (anything that is either deleted or was never created)
  while (deleted_index && path.size > deleted_index) || !@creators[path]
    @creators[path] = creator ? [ creator ] : []
    @deleted.delete(path)
    # Only do this once if create_parents is false
    break if !create_parents || path.size == 0

    path = path[0..-2]
  end
end

#deleted?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef_zero/chef_data/default_creator.rb', line 47

def deleted?(path)
  1.upto(path.size) do |index|
    return true if @deleted[path[0..-index]]
  end
  false
end

#exists?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef_zero/chef_data/default_creator.rb', line 141

def exists?(path)
  return true if path.size == 0

  parent_list = list(path[0..-2])
  parent_list && parent_list.include?(path[-1])
end

#get(path) ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 77

def get(path)
  return nil if deleted?(path)

  result = case path[0]
           when "acls"
             # /acls/*
             object_path = AclPath.get_object_path(path)
             if data_exists?(object_path)
               default_acl(path)
             end

           when "containers"
             if path.size == 2 && exists?(path)
               {}
             end

           when "users"
             if path.size == 2 && data.exists?(path)
               # User is empty user
               {}
             end

           when "organizations"
             if path.size >= 2
               # /organizations/*/**
               if data.exists_dir?(path[0..1])
                 get_org_default(path)
               end
             end
           end

  result
end

#list(path) ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 111

def list(path)
  return nil if deleted?(path)

  if path.size == 0
    return %w{containers users organizations acls}
  end

  case path[0]
  when "acls"
    if path.size == 1
      [ "root" ] + (data.list(path + [ "containers" ]) - [ "organizations" ])
    else
      data.list(AclPath.get_object_path(path))
    end

  when "containers"
    %w{containers users organizations}

  when "users"
    superusers

  when "organizations"
    if path.size == 1
      single_org ? [ single_org ] : []
    elsif path.size >= 2 && data.exists_dir?(path[0..1])
      list_org_default(path)
    end
  end
end

#superusers ⇒ Object 



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# File 'lib/chef_zero/chef_data/default_creator.rb', line 73

def superusers
  @creators[[]]
end