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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
%% http://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 Developers of the Original Code are LShift Ltd,
%% Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd.
%%
%% Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd,
%% Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd
%% are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial
%% Technologies LLC, and Rabbit Technologies Ltd.
%%
%% Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift
%% Ltd. Portions created by Cohesive Financial Technologies LLC are
%% Copyright (C) 2007-2010 Cohesive Financial Technologies
%% LLC. Portions created by Rabbit Technologies Ltd are Copyright
%% (C) 2007-2010 Rabbit Technologies Ltd.
%%
%% All Rights Reserved.
%%
%% Contributor(s): ______________________________________.
%%
-module(rabbit_error_logger_file_h).
-behaviour(gen_event).
-export([init/1, handle_event/2, handle_call/2, handle_info/2, terminate/2,
code_change/3]).
%% rabbit_error_logger_file_h is a wrapper around the error_logger_file_h
%% module because the original's init/1 does not match properly
%% with the result of closing the old handler when swapping handlers.
%% The first init/1 additionally allows for simple log rotation
%% when the suffix is not the empty string.
%% Used only when swapping handlers in log rotation
init({{File, Suffix}, []}) ->
case rabbit_misc:append_file(File, Suffix) of
ok -> ok;
{error, Error} ->
rabbit_log:error("Failed to append contents of "
"log file '~s' to '~s':~n~p~n",
[File, [File, Suffix], Error])
end,
init(File);
%% Used only when swapping handlers and the original handler
%% failed to terminate or was never installed
init({{File, _}, error}) ->
init(File);
%% Used only when swapping handlers without performing
%% log rotation
init({File, []}) ->
init(File);
init({File, _Type} = FileInfo) ->
rabbit_misc:ensure_parent_dirs_exist(File),
error_logger_file_h:init(FileInfo);
init(File) ->
rabbit_misc:ensure_parent_dirs_exist(File),
error_logger_file_h:init(File).
handle_event(Event, State) ->
error_logger_file_h:handle_event(Event, State).
handle_info(Event, State) ->
error_logger_file_h:handle_info(Event, State).
handle_call(Event, State) ->
error_logger_file_h:handle_call(Event, State).
terminate(Reason, State) ->
error_logger_file_h:terminate(Reason, State).
code_change(OldVsn, State, Extra) ->
error_logger_file_h:code_change(OldVsn, State, Extra).
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