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Extract subscribe_to_stream function #13

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Extract subscribe_to_stream function #13

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301ed1c
Extract persistent_subscribe function
May 29, 2018
23f06c5
Rename persistent_subscribe to subscribe_to_stream
May 29, 2018
56600f6
subscribe_to_stream: Default to overridable stream prefix
Jul 4, 2018
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31 changes: 26 additions & 5 deletions lib/extreme.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -75,17 +75,28 @@ defmodule Commanded.EventStore.Adapters.Extreme do
end
end

@spec subscribe_to_all_streams(String.t(), pid, Commanded.EventStore.start_from()) ::
@spec subscribe_to_stream(
String.t(),
String.t(),
pid(),
Commanded.EventStore.start_from(),
Keyword.t()
) ::
{:ok, subscription :: pid}
| {:error, :subscription_already_exists}
| {:error, term}
def subscribe_to_all_streams(subscription_name, subscriber, start_from \\ :origin)

def subscribe_to_all_streams(subscription_name, subscriber, start_from) do
stream = "$ce-" <> @stream_prefix
def subscribe_to_stream(
stream_name,
subscription_name,
subscriber,
start_from \\ :origin,
opts \\ [stream_prefix: "$ce-" <> @stream_prefix]
)

def subscribe_to_stream(stream_name, subscription_name, subscriber, start_from, opts) do
case SubscriptionsSupervisor.start_subscription(
stream,
Keyword.get(opts, :stream_prefix, "") <> stream_name,
subscription_name,
subscriber,
start_from
Expand All @@ -95,6 +106,16 @@ defmodule Commanded.EventStore.Adapters.Extreme do
end
end

@spec subscribe_to_all_streams(String.t(), pid, Commanded.EventStore.start_from()) ::
{:ok, subscription :: pid}
| {:error, :subscription_already_exists}
| {:error, term}
def subscribe_to_all_streams(subscription_name, subscriber, start_from \\ :origin)

def subscribe_to_all_streams(subscription_name, subscriber, start_from) do
subscribe_to_stream("", subscription_name, subscriber, start_from)
end

@spec ack_event(pid, RecordedEvent.t()) :: :ok
def ack_event(subscription, %RecordedEvent{event_number: event_number}) do
Subscription.ack(subscription, event_number)
Expand Down