Initial commit

LICENSE

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+Copyright (c) 2012 KIVRA
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Makefile

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+.PHONY: deps test
+
+all: deps compile
+
+compile:
+	./rebar compile
+
+deps:
+	./rebar get-deps
+
+clean:
+	./rebar clean
+
+distclean: clean
+	./rebar delete-deps
+
+test:
+	./rebar eunit
+
+##
+## Doc targets
+##
+docs:
+	./rebar doc
+
+APPS = kernel stdlib sasl erts ssl tools os_mon runtime_tools crypto inets \
+	   xmerl webtool snmp public_key mnesia eunit syntax_tools compiler
+COMBO_PLT =COMBO_PLT $(HOME)/.riak_combo_dialyzer_plt
+
+check_plt: compile
+	dialyzer --check_plt_plt --plt $(COMBO_PLT) --apps $(APPS)
+
+build_plt: compile
+	dialyzer --dialyzerbuild_plt --output_plt $(COMBO_PLT) --apps $(APPS)
+
+dialyzer: compile
+	@echo
+	@echo Use "'make check_plt'" to check PLT prior to using this target.
+	@echo Use "'make build_plt'" to build PLT prior to using this target.
+	@echoho
+	@sleep 1
+	dialyzer -Wno_return --plt $(COMBO_PLT) ebin | \
+		fgrep -v -f ./dialyzer.ignore-warnings
+
+cleanplt:
+	@echo
+	@echo "Are you 		sure?  It takes about 1/2 hour to re-build."
+	@echo Deleting $(COMBO_PLTT) in 5 seconds.
+	@echo
+	sleep 5
+	rm $(COMBO_PLT)

rebar.config

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+{erl_opts, [
+            warnings_as_errors
+            ,warn_export_all
+           ]
+}.
+{cover_enabled, true}.
+{deps, [
+        {jsx, "1.3.*", {git, "git://github.com/talentdeficit/jsx.git", {branch, "master"}}}
+        ,{lager, "1.2.*", {git, "git://github.com/basho/lager", {branch, "master"}}}
+       ]
+}.

src/lager_loggly.app.src

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+%% ----------------------------------------------------------------------------
+%%
+%% lager_loggly: Loggly backend for Lager
+%%
+%% Copyright (c) 2012 KIVRA
+%%
+%% Permission is hereby granted, free of charge, to any person obtaining a
+%% copy of this software and associated documentation files (the "Software"),
+%% to deal in the Software without restriction, including without limitation
+%% the rights to use, copy, modify, merge, publish, distribute, sublicense,
+%% and/or sell copies of the Software, and to permit persons to whom the
+%% Software is furnished to do so, subject to the following conditions:
+%%
+%% The above copyright notice and this permission notice shall be included in
+%% all copies or substantial portions of the Software.
+%%
+%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+%% FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+%% DEALINGS IN THE SOFTWARE.
+%%
+%% ----------------------------------------------------------------------------
+
+{application, lager_loggly,
+ [
+  {description, "Loggly backend for Lager"},
+  {vsn, git},
+  {modules, []},
+  {applications, [
+                  kernel,
+                  stdlib
+                 ]},
+  {registered, []}
+ ]}.

src/lager_loggly_backend.erl

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+%% ----------------------------------------------------------------------------
+%%
+%% lager_loggly: Loggly backend for Lager
+%%
+%% Copyright (c) 2012 KIVRA
+%%
+%% Permission is hereby granted, free of charge, to any person obtaining a
+%% copy of this software and associated documentation files (the "Software"),
+%% to deal in the Software without restriction, including without limitation
+%% the rights to use, copy, modify, merge, publish, distribute, sublicense,
+%% and/or sell copies of the Software, and to permit persons to whom the
+%% Software is furnished to do so, subject to the following conditions:
+%%
+%% The above copyright notice and this permission notice shall be included in
+%% all copies or substantial portions of the Software.
+%%
+%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+%% FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+%% DEALINGS IN THE SOFTWARE.
+%%
+%% ----------------------------------------------------------------------------
+
+-module(lager_loggly_backend).
+
+-behaviour(gen_event).
+
+-export([
+         init/1
+         ,handle_call/2
+         ,handle_event/2
+         ,handle_info/2
+         ,terminate/2
+         ,code_change/3
+        ]).
+
+%%% this is only exported for the spawn call
+-export([deferred_log/3]).
+
+-record(state, {
+                level           :: integer()
+                ,retry_interval :: integer()
+                ,retry_times    :: integer()
+                ,loggly_url     :: binary()
+               }).
+
+-include_lib("lager/include/lager.hrl").
+
+init([Level, RetryTimes, RetryInterval, LogglyUrl]) ->
+    application:start(inets),
+    application:start(crypto),
+    application:start(public_key),
+    application:start(ssl),
+    State = #state{
+                   level           = lager_util:level_to_num(Level)
+                   ,retry_interval = RetryInterval
+                   ,retry_times    = RetryTimes
+                   ,loggly_url     = LogglyUrl
+                  },
+    {ok, State}.
+
+handle_call(get_loglevel, #state{ level = Level } = State) ->
+    {ok, Level, State};
+handle_call({set_loglevel, Level}, State) ->
+    {ok, ok, State#state{ level = lager_util:level_to_num(Level) }};
+handle_call(_Request, State) ->
+    {ok, ok, State}.
+
+%% @private
+handle_event({log, Level, {_Date, _Time}, [_LevStr, Loc, Message]}, State) ->
+    Payload = jsx:to_json([
+                            {<<"level">>, convert_level(Level)}
+                            ,{<<"location">>, list_to_binary(Loc)}
+                            ,{<<"message">>, list_to_binary(Message)}
+                          ]),
+    Request = {State#state.loggly_url, [], "application/json", Payload},
+    RetryTimes = State#state.retry_times,
+    RetryInterval = State#state.retry_interval,
+
+    %% Spawn a background process to handle sending the email.
+    %% It will recurse until the message is successfully sent.
+    spawn(?MODULE, deferred_log, [Request, RetryTimes, RetryInterval]),
+    {ok, State};
+handle_event(_Event, State) ->
+    {ok, State}.
+
+handle_info(_Info, State) ->
+    {ok, State}.
+
+terminate(_Reason, _State) ->
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+
+%%% Private
+
+
+deferred_log(_Request, 0, _) ->
+    ok;
+deferred_log(Request, Retries, Interval) ->
+    case httpc:request(post, Request, [], [{body_format, binary}]) of
+        {ok, {{_, 200, _}, _H, _B}} -> ok;
+        _ ->
+            timer:sleep(Interval * 1000),
+            deferred_log(Request, Retries - 1, Interval)
+    end.
+
+convert_level(Level) ->
+    list_to_binary(atom_to_list(lager_util:num_to_level(Level))).