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%% The contents of this file are subject to the Mozilla Public License
%% Version 1.1 (the "License"); you may not use this file except in
%% compliance with the License. You may obtain a copy of the License
%% at https://www.mozilla.org/MPL/
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and
%% limitations under the License.
%%
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is GoPivotal, Inc.
%% Copyright (c) 2018-2020 Pivotal Software, Inc. All rights reserved.
%%
-module(rabbit_queue_type_util).
-export([args_policy_lookup/3,
qname_to_internal_name/1,
check_auto_delete/1,
check_exclusive/1,
check_non_durable/1,
run_checks/2]).
-include("rabbit.hrl").
-include("amqqueue.hrl").
args_policy_lookup(Name, Resolve, Q) when ?is_amqqueue(Q) ->
Args = amqqueue:get_arguments(Q),
AName = <<"x-", Name/binary>>,
case {rabbit_policy:get(Name, Q), rabbit_misc:table_lookup(Args, AName)} of
{undefined, undefined} -> undefined;
{undefined, {_Type, Val}} -> Val;
{Val, undefined} -> Val;
{PolVal, {_Type, ArgVal}} -> Resolve(PolVal, ArgVal)
end.
%% TODO escape hack
qname_to_internal_name(#resource{virtual_host = <<"/">>, name = Name}) ->
erlang:binary_to_atom(<<"%2F_", Name/binary>>, utf8);
qname_to_internal_name(#resource{virtual_host = VHost, name = Name}) ->
erlang:binary_to_atom(<<VHost/binary, "_", Name/binary>>, utf8).
check_auto_delete(Q) when ?amqqueue_is_auto_delete(Q) ->
Name = amqqueue:get_name(Q),
{protocol_error, precondition_failed, "invalid property 'auto-delete' for ~s",
[rabbit_misc:rs(Name)]};
check_auto_delete(_) ->
ok.
check_exclusive(Q) when ?amqqueue_exclusive_owner_is(Q, none) ->
ok;
check_exclusive(Q) when ?is_amqqueue(Q) ->
Name = amqqueue:get_name(Q),
{protocol_error, precondition_failed, "invalid property 'exclusive-owner' for ~s",
[rabbit_misc:rs(Name)]}.
check_non_durable(Q) when ?amqqueue_is_durable(Q) ->
ok;
check_non_durable(Q) when not ?amqqueue_is_durable(Q) ->
Name = amqqueue:get_name(Q),
{protocol_error, precondition_failed, "invalid property 'non-durable' for ~s",
[rabbit_misc:rs(Name)]}.
run_checks([], _) ->
ok;
run_checks([C | Checks], Q) ->
case C(Q) of
ok ->
run_checks(Checks, Q);
Err ->
Err
end.
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