mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-20 17:27:00 +01:00
803270fc6b
Contribution for Google Summer of code 2016 by Gabriel Gatu
56 lines
1.3 KiB
Elixir
56 lines
1.3 KiB
Elixir
defmodule Ejabberd.Config.Store do
|
|
@moduledoc """
|
|
Module used for storing the modules parsed from
|
|
the configuration file.
|
|
|
|
Example:
|
|
- Store.put(:modules, mod1)
|
|
- Store.put(:modules, mod2)
|
|
|
|
- Store.get(:modules) :: [mod1, mod2]
|
|
|
|
Be carefoul: when retrieving data you get them
|
|
in the order inserted into the store, which normally
|
|
is the reversed order of how the modules are specified
|
|
inside the configuration file. To resolve this just use
|
|
a Enum.reverse/1.
|
|
"""
|
|
|
|
@name __MODULE__
|
|
|
|
def start_link do
|
|
Agent.start_link(fn -> %{} end, name: @name)
|
|
end
|
|
|
|
@doc """
|
|
Stores a value based on the key. If the key already exists,
|
|
then it inserts the new element, maintaining all the others.
|
|
It uses a list for this.
|
|
"""
|
|
@spec put(atom, any) :: :ok
|
|
def put(key, val) do
|
|
Agent.update @name, &Map.update(&1, key, [val], fn coll ->
|
|
[val | coll]
|
|
end)
|
|
end
|
|
|
|
@doc """
|
|
Gets a value based on the key passed.
|
|
Returns always a list.
|
|
"""
|
|
@spec get(atom) :: [any]
|
|
def get(key) do
|
|
Agent.get @name, &Map.get(&1, key, [])
|
|
end
|
|
|
|
@doc """
|
|
Stops the store.
|
|
It uses Agent.stop underneath, so be aware that exit
|
|
could be called.
|
|
"""
|
|
@spec stop() :: :ok
|
|
def stop do
|
|
Agent.stop @name
|
|
end
|
|
end
|