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% 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_jobs_util).
-export([
get_non_neg_int/2,
get_float_0_1/2,
get_timeout/2
]).
get_non_neg_int(Key, Default) when is_atom(Key), is_list(Default) ->
StrVal = config:get("couch_jobs", atom_to_list(Key), Default),
non_neg_int(Key, StrVal).
get_float_0_1(Key, Default) when is_atom(Key), is_list(Default) ->
StrVal = config:get("couch_jobs", atom_to_list(Key), Default),
float_0_1(Key, StrVal).
get_timeout(Key, Default) when is_atom(Key), is_list(Default) ->
case config:get("couch_jobs", atom_to_list(Key), Default) of
"infinity" -> infinity;
StrVal -> non_neg_int(Key, StrVal)
end.
non_neg_int(Name, Str) ->
try
Val = list_to_integer(Str),
true = Val > 0,
Val
catch _:_ ->
erlang:error({invalid_non_neg_integer, {couch_jobs, Name, Str}})
end.
float_0_1(Name, Str) ->
Val = try
list_to_float(Str)
catch error:badarg ->
erlang:error({invalid_float, {couch_jobs, Name, Str}})
end,
if Val >= 0.0 andalso Val =< 1.0 -> Val; true ->
erlang:error({float_out_of_range, {couch_jobs, Name, Str}})
end.
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