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