blob: 66515af4f3d6389557199677dde31d99963ae114 (
plain) (
tree)
|
|
%%%----------------------------------------------------------------------
%%% File : ejabberd_rdbms.erl
%%% Author : Mickael Remond <mickael.remond@process-one.net>
%%% Purpose : Manage the start of the database modules when needed
%%% Created : 31 Jan 2003 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id: $
%%%----------------------------------------------------------------------
-module(ejabberd_rdbms).
-author('alexey@sevcom.net').
-svn('$Revision: $ ').
-export([start/0]).
-include("ejabberd.hrl").
start() ->
%% Check if ejabberd has been compiled with ODBC
case catch ejabberd_odbc_sup:module_info() of
{'EXIT',{undef,_}} ->
?INFO_MSG("ejabberd has not been compiled with relational database support. Skipping database startup.", []);
_ ->
%% If compiled with ODBC, start ODBC on the needed host
start_hosts()
end.
%% Start relationnal DB module on the nodes where it is needed
start_hosts() ->
lists:foreach(
fun(Host) ->
case needs_odbc(Host) of
true -> start_odbc(Host);
false -> ok
end
end, ?MYHOSTS).
%% Start the ODBC module on the given host
start_odbc(Host) ->
ChildSpec =
{gen_mod:get_module_proc(Host, ejabberd_odbc_sup),
{ejabberd_odbc_sup, start_link, [Host]},
temporary,
infinity,
supervisor,
[ejabberd_odbc_sup]},
supervisor:start_child(ejabberd_sup, ChildSpec).
%% Returns true if we have configured odbc_server for the given host
needs_odbc(Host) ->
LHost = jlib:nameprep(Host),
case ejabberd_config:get_local_option({odbc_server, LHost}) of
undefined ->
false;
_ -> true
end.
|
