1 files changed, 0 insertions, 130 deletions
diff --git a/src/couch_stats/src/couch_stats.erl b/src/couch_stats/src/couch_stats.erl
deleted file mode 100644
index e0303fc0f..000000000
--- a/src/couch_stats/src/couch_stats.erl
+++ /dev/null
@@ -1,130 +0,0 @@
-% Licensed under the Apache License, Version 2.0 (the "License"); you may not
-% use this file except in compliance with the License. You may obtain a copy of
-% the License at
-%
-%   http://www.apache.org/licenses/LICENSE-2.0
-%
-% Unless required by applicable law or agreed to in writing, software
-% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-% License for the specific language governing permissions and limitations under
-% the License.
-
--module(couch_stats).
-
--export([
-    start/0,
-    stop/0,
-    fetch/0,
-    reload/0,
-    sample/1,
-    new/2,
-    delete/1,
-    list/0,
-    increment_counter/1,
-    increment_counter/2,
-    decrement_counter/1,
-    decrement_counter/2,
-    update_histogram/2,
-    update_gauge/2
-]).
-
--include("couch_stats.hrl").
-
--type response() :: ok | {error, unknown_metric}.
--type stat() :: {any(), [{atom(), any()}]}.
-
-start() ->
-    application:start(couch_stats).
-
-stop() ->
-    application:stop(couch_stats).
-
-fetch() ->
-    couch_stats_aggregator:fetch().
-
-reload() ->
-    couch_stats_aggregator:reload().
-
--spec sample(any()) -> stat().
-sample(Name) ->
-    [{Name, Info}] = folsom_metrics:get_metric_info(Name),
-    sample_type(Name, proplists:get_value(type, Info)).
-
--spec new(atom(), any()) -> ok | {error, metric_exists | unsupported_type}.
-new(counter, Name) ->
-    case folsom_metrics:new_counter(Name) of
-        ok -> ok;
-        {error, Name, metric_already_exists} -> {error, metric_exists}
-    end;
-new(histogram, Name) ->
-    Time = config:get_integer("stats", "interval", ?DEFAULT_INTERVAL),
-    case folsom_metrics:new_histogram(Name, slide_uniform, {Time, 1024}) of
-        ok -> ok;
-        {error, Name, metric_already_exists} -> {error, metric_exists}
-    end;
-new(gauge, Name) ->
-    case folsom_metrics:new_gauge(Name) of
-        ok -> ok;
-        {error, Name, metric_already_exists} -> {error, metric_exists}
-    end;
-new(_, _) ->
-    {error, unsupported_type}.
-
-delete(Name) ->
-    folsom_metrics:delete_metric(Name).
-
-list() ->
-    folsom_metrics:get_metrics_info().
-
--spec increment_counter(any()) -> response().
-increment_counter(Name) ->
-    notify_existing_metric(Name, {inc, 1}, counter).
-
--spec increment_counter(any(), pos_integer()) -> response().
-increment_counter(Name, Value) ->
-    notify_existing_metric(Name, {inc, Value}, counter).
-
--spec decrement_counter(any()) -> response().
-decrement_counter(Name) ->
-    notify_existing_metric(Name, {dec, 1}, counter).
-
--spec decrement_counter(any(), pos_integer()) -> response().
-decrement_counter(Name, Value) ->
-    notify_existing_metric(Name, {dec, Value}, counter).
-
--spec update_histogram
-    (any(), number()) -> response();
-    (any(), function()) -> any().
-update_histogram(Name, Fun) when is_function(Fun, 0) ->
-    Begin = os:timestamp(),
-    Result = Fun(),
-    Duration = timer:now_diff(os:timestamp(), Begin) div 1000,
-    case notify_existing_metric(Name, Duration, histogram) of
-        ok ->
-            Result;
-        {error, unknown_metric} ->
-            throw({unknown_metric, Name})
-    end;
-update_histogram(Name, Value) when is_number(Value) ->
-    notify_existing_metric(Name, Value, histogram).
-
--spec update_gauge(any(), number()) -> response().
-update_gauge(Name, Value) ->
-    notify_existing_metric(Name, Value, gauge).
-
--spec notify_existing_metric(any(), any(), any()) -> response().
-notify_existing_metric(Name, Op, Type) ->
-    try
-        ok = folsom_metrics:notify_existing_metric(Name, Op, Type)
-    catch
-        _:_ ->
-            error_logger:error_msg("unknown metric: ~p", [Name]),
-            {error, unknown_metric}
-    end.
-
--spec sample_type(any(), atom()) -> stat().
-sample_type(Name, histogram) ->
-    folsom_metrics:get_histogram_statistics(Name);
-sample_type(Name, _) ->
-    folsom_metrics:get_metric_value(Name).