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-rw-r--r--src/rabbit_parameter_validation.erl16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/rabbit_parameter_validation.erl b/src/rabbit_parameter_validation.erl
index 24762a73..a4bd5042 100644
--- a/src/rabbit_parameter_validation.erl
+++ b/src/rabbit_parameter_validation.erl
@@ -11,12 +11,12 @@
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is VMware, Inc.
-%% Copyright (c) 2007-2012 VMware, Inc. All rights reserved.
+%% Copyright (c) 2007-2013 VMware, Inc. All rights reserved.
%%
-module(rabbit_parameter_validation).
--export([number/2, binary/2, boolean/2, list/2, regex/2, proplist/3]).
+-export([number/2, binary/2, boolean/2, list/2, regex/2, proplist/3, enum/1]).
number(_Name, Term) when is_number(Term) ->
ok;
@@ -73,3 +73,15 @@ proplist(Name, Constraints, Term) when is_list(Term) ->
proplist(Name, _Constraints, Term) ->
{error, "~s not a list ~p", [Name, Term]}.
+
+enum(OptionsA) ->
+ Options = [list_to_binary(atom_to_list(O)) || O <- OptionsA],
+ fun (Name, Term) when is_binary(Term) ->
+ case lists:member(Term, Options) of
+ true -> ok;
+ false -> {error, "~s should be one of ~p, actually was ~p",
+ [Name, Options, Term]}
+ end;
+ (Name, Term) ->
+ {error, "~s should be binary, actually was ~p", [Name, Term]}
+ end.