init project

.gitignore

@@ -0,0 +1,18 @@
+.rebar3
+_*
+.eunit
+*.o
+*.beam
+*.plt
+*.swp
+*.swo
+.erlang.cookie
+ebin
+log
+erl_crash.dump
+.rebar
+logs
+.idea
+*.iml
+rebar3.crashdump
+*~

LICENSE

@@ -0,0 +1,191 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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+
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+      the terms of any separate license agreement you may have executed
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+
+   6. Trademarks. This License does not grant permission to use the trade
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2023, 安礼成 <licheng5@staff.weibo.com>.
+
+   Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+

README.md

@@ -0,0 +1,9 @@
+iot
+=====
+
+An OTP application
+
+Build
+-----
+
+    $ rebar3 compile

apps/iot/src/http_api_handler.erl

@@ -0,0 +1,20 @@
+%%%-------------------------------------------------------------------
+%%% @author licheng5
+%%% @copyright (C) 2020, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 26. 4月 2020 3:36 下午
+%%%-------------------------------------------------------------------
+-module(http_api_handler).
+-author("licheng5").
+
+%% API
+-export([handle_request/4]).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% helper methods
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+handle_request("GET", "/api/booking", _, _Params) ->
+    {ok, 200, iot_util:json_data(<<"success">>)}.

apps/iot/src/http_protocol.erl

@@ -0,0 +1,68 @@
+%%%-------------------------------------------------------------------
+%%% @author licheng5
+%%% @copyright (C) 2020, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 26. 4月 2020 3:36 下午
+%%%-------------------------------------------------------------------
+-module(http_protocol).
+-author("licheng5").
+
+%% API
+-export([init/2]).
+
+init(Req0, Opts) ->
+    StartTs = erlang:monotonic_time(),
+
+    Method = binary_to_list(cowboy_req:method(Req0)),
+    Path = binary_to_list(cowboy_req:path(Req0)),
+    GetParams0 = cowboy_req:parse_qs(Req0),
+    GetParams = maps:from_list(GetParams0),
+
+    {ok, PostParams0, Req1} = cowboy_req:read_urlencoded_body(Req0),
+    PostParams = maps:from_list(PostParams0),
+    try http_api_handler:handle_request(Method, Path, GetParams, PostParams) of
+        {ok, StatusCode, Resp} ->
+            lager:debug("[http_protocol] get a request, path: ~p, get params: ~p, post params: ~p, response: ~ts",
+                [Path, GetParams, PostParams, Resp]),
+            AcceptEncoding = cowboy_req:header(<<"accept-encoding">>, Req1, <<>>),
+            Req2 = case iolist_size(Resp) >= 1024 andalso supported_gzip(AcceptEncoding) of
+                       true ->
+                           Resp1 = zlib:gzip(Resp),
+                           cowboy_req:reply(StatusCode, #{
+                               <<"Content-Type">> => <<"application/json;charset=utf-8">>,
+                               <<"Content-Encoding">> => <<"gzip">>
+                           }, Resp1, Req1);
+                       false ->
+                           cowboy_req:reply(StatusCode, #{
+                               <<"Content-Type">> => <<"application/json;charset=utf-8">>
+                           }, Resp, Req1)
+                   end,
+            EndTs = erlang:monotonic_time(),
+            CostTs = erlang:convert_time_unit(EndTs - StartTs, native, microsecond),
+            lager:debug("cost_ts is: ~p", [CostTs]),
+            {ok, Req2, Opts}
+    catch
+        throw:Error ->
+            ErrResp = iot_util:json_error(-1, Error),
+            Req2 = cowboy_req:reply(404, #{
+                <<"Content-Type">> => <<"application/json;charset=utf-8">>
+            }, ErrResp, Req1),
+            {ok, Req2, Opts};
+        _:Error:Stack ->
+            lager:warning("[http_handler] get error: ~p, stack: ~p", [Error, Stack]),
+            Req2 = cowboy_req:reply(500, #{
+                <<"Content-Type">> => <<"text/html;charset=utf-8">>
+            }, <<"Internal Server Error">>, Req1),
+            {ok, Req2, Opts}
+    end.
+
+%% 判断是否支持gzip
+supported_gzip(AcceptEncoding) when is_binary(AcceptEncoding) ->
+    case binary:match(AcceptEncoding, <<"gzip">>) of
+        nomatch ->
+            false;
+        _ ->
+            true
+    end.

apps/iot/src/iot.app.src

@@ -0,0 +1,25 @@
+{application, iot,
+ [{description, "An OTP application"},
+  {vsn, "0.1.0"},
+  {registered, []},
+  {mod, {iot_app, []}},
+  {applications,
+   [
+    sync,
+    ranch,
+    cowboy,
+    lager,
+    jiffy,
+    parse_trans,
+    hackney,
+    poolboy,
+    mnesia,
+    kernel,
+    stdlib
+   ]},
+  {env,[]},
+  {modules, []},
+
+  {licenses, ["Apache 2.0"]},
+  {links, []}
+ ]}.

apps/iot/src/iot_app.erl

@@ -0,0 +1,48 @@
+%%%-------------------------------------------------------------------
+%% @doc iot public API
+%% @end
+%%%-------------------------------------------------------------------
+
+-module(iot_app).
+
+-behaviour(application).
+
+-export([start/2, stop/1]).
+
+start(_StartType, _StartArgs) ->
+    io:setopts([{encoding, unicode}]),
+    %% 启动数据库
+    mnesia:start(),
+    %% 加速内存的回收
+    erlang:system_flag(fullsweep_after, 16),
+
+    start_http_server(),
+
+    iot_sup:start_link().
+
+stop(_State) ->
+    ok.
+
+%% internal functions
+
+%% 启动http服务
+start_http_server() ->
+    {ok, Props} = application:get_env(iot, http_server),
+    Acceptors = proplists:get_value(acceptors, Props, 50),
+    MaxConnections = proplists:get_value(max_connections, Props, 10240),
+    Backlog = proplists:get_value(backlog, Props, 1024),
+    Port = proplists:get_value(port, Props),
+
+    Dispatcher = cowboy_router:compile([
+        {'_', [
+            {"/api/[...]", http_protocol, []}
+        ]}
+    ]),
+    TransOpts = [
+        {port, Port},
+        {num_acceptors, Acceptors},
+        {backlog, Backlog},
+        {max_connections, MaxConnections}
+    ],
+    {ok, _} = cowboy:start_clear(http_listener, TransOpts, #{env => #{dispatch => Dispatcher}}),
+    lager:debug("[booking_app] the http server start at: ~p", [Port]).

apps/iot/src/iot_mnesia.erl

@@ -0,0 +1,58 @@
+%%%-------------------------------------------------------------------
+%%% @author licheng5
+%%% @copyright (C) 2020, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 04. 12月 2020 下午3:55
+%%%-------------------------------------------------------------------
+-module(iot_mnesia).
+-author("licheng5").
+
+%% API
+-export([init_database/0, copy_database/1, join/1]).
+
+%% 只能调用一次
+init_database() ->
+    %% 清理掉以前的schema
+    mnesia:stop(),
+    mnesia:delete_schema([node()]),
+
+    %% 创建schema
+    ok = mnesia:create_schema([node()]),
+    ok = mnesia:start(),
+    %% 创建数据库表
+
+    %% 订阅关系表
+%    mnesia:create_table(booking, [
+%        {attributes, record_info(fields, booking)},
+%        {record_name, booking},
+%        {disc_copies, [node()]},
+%        {type, set}
+%    ]),
+%
+    ok.
+
+%% 加入集群
+join(MasterNode) when is_atom(MasterNode) ->
+    net_kernel:connect_node(MasterNode).
+
+%% 初始化slave数据库
+copy_database(MasterNode) when is_atom(MasterNode) ->
+    %% 清理旧的schema
+    mnesia:stop(),
+    mnesia:delete_schema([node()]),
+    %% 重新启动数据库
+    mnesia:start(),
+
+    rpc:call(MasterNode, mnesia, change_config, [extra_db_nodes, [node()]]),
+    mnesia:change_table_copy_type(schema, node(), disc_copies),
+
+    %% 增加表的分区复制
+    mnesia:add_table_copy(booking, node(), ram_copies),
+    mnesia:add_table_copy(calendar, node(), ram_copies),
+    mnesia:add_table_copy(app, node(), ram_copies),
+    mnesia:add_table_copy(fake_app, node(), ram_copies),
+    mnesia:add_table_copy(app_extra, node(), ram_copies),
+    mnesia:add_table_copy(app_calendar, node(), ram_copies),
+    ok.

apps/iot/src/iot_sup.erl

@@ -0,0 +1,35 @@
+%%%-------------------------------------------------------------------
+%% @doc iot top level supervisor.
+%% @end
+%%%-------------------------------------------------------------------
+
+-module(iot_sup).
+
+-behaviour(supervisor).
+
+-export([start_link/0]).
+
+-export([init/1]).
+
+-define(SERVER, ?MODULE).
+
+start_link() ->
+    supervisor:start_link({local, ?SERVER}, ?MODULE, []).
+
+%% sup_flags() = #{strategy => strategy(),         % optional
+%%                 intensity => non_neg_integer(), % optional
+%%                 period => pos_integer()}        % optional
+%% child_spec() = #{id => child_id(),       % mandatory
+%%                  start => mfargs(),      % mandatory
+%%                  restart => restart(),   % optional
+%%                  shutdown => shutdown(), % optional
+%%                  type => worker(),       % optional
+%%                  modules => modules()}   % optional
+init([]) ->
+    SupFlags = #{strategy => one_for_all,
+                 intensity => 0,
+                 period => 1},
+    ChildSpecs = [],
+    {ok, {SupFlags, ChildSpecs}}.
+
+%% internal functions

apps/iot/src/iot_util.erl

@@ -0,0 +1,64 @@
+%%%-------------------------------------------------------------------
+%%% @author licheng5
+%%% @copyright (C) 2020, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 11. 12月 2020 上午10:57
+%%%-------------------------------------------------------------------
+-module(iot_util).
+-author("licheng5").
+
+%% API
+-export([timestamp/0, number_format/2, current_time/0]).
+-export([step/3, chunks/2]).
+-export([json_data/1, json_error/2]).
+
+%% 时间，精确到毫秒
+timestamp() ->
+    {Mega, Seconds, Micro} = os:timestamp(),
+    (Mega * 1000000 + Seconds) * 1000 + Micro div 1000.
+
+current_time() ->
+    {Mega, Seconds, _Micro} = os:timestamp(),
+    Mega * 1000000 + Seconds.
+
+number_format(Num, _Decimals) when is_integer(Num) ->
+    Num;
+number_format(Float, Decimals) when is_float(Float) ->
+    list_to_float(float_to_list(Float, [{decimals, Decimals}, compact])).
+
+step(Start, End, Step) when is_integer(Start), is_integer(End), is_integer(Step), Start < End, Step > 0 ->
+    step(Start, End, Step, []).
+step(Start, End, Step, Acc) when Start < End ->
+    step(Start + Step, End, Step, [{Start, min(Start + Step, End)} | Acc]);
+step(_, _, _, Acc) ->
+    lists:reverse(Acc).
+
+%% 将数据分组
+-spec chunks(list(), integer()) -> [list()].
+chunks(List, Size) when is_list(List), is_integer(Size), Size > 0, length(List) =< Size ->
+    [List];
+chunks(List, Size) when is_list(List), is_integer(Size), Size > 0 ->
+    chunks0(List, Size, Size, [], []).
+chunks0([], _, _, [], AccTarget) ->
+    lists:reverse(AccTarget);
+chunks0([], _, _, Target, AccTarget) ->
+    lists:reverse([lists:reverse(Target) | AccTarget]);
+chunks0(List, Size, 0, Target, AccTarget) ->
+    chunks0(List, Size, Size, [], [lists:reverse(Target) | AccTarget]);
+chunks0([Hd | Tail], Size, Num, Target, AccTarget) ->
+    chunks0(Tail, Size, Num - 1, [Hd | Target], AccTarget).
+
+json_data(Data) ->
+    jiffy:encode(#{
+        <<"result">> => Data
+    }, [force_utf8]).
+
+json_error(ErrCode, ErrMessage) when is_integer(ErrCode), is_binary(ErrMessage) ->
+    jiffy:encode(#{
+        <<"error">> => #{
+            <<"code">> => ErrCode,
+            <<"message">> => ErrMessage
+        }
+    }, [force_utf8]).

config/sys.config

@@ -0,0 +1,45 @@
+[
+  {iot, [
+    {http_server, [
+      {port, 8080},
+      {acceptors, 500},
+      {max_connections, 10240},
+      {backlog, 10240}
+    ]}
+  ]},
+
+  %% 系统日志配置，系统日志为lager, 支持日志按日期自动分割
+  {lager, [
+    {colored, true},
+    %% Whether to write a crash log, and where. Undefined means no crash logger.
+    {crash_log, "log/trade_hub.crash.log"},
+    %% Maximum size in bytes of events in the crash log - defaults to 65536
+    {crash_log_msg_size, 65536},
+    %% Maximum size of the crash log in bytes, before its rotated, set
+    %% to 0 to disable rotation - default is 0
+    {crash_log_size, 10485760},
+    %% What time to rotate the crash log - default is no time
+    %% rotation. See the README for a description of this format.
+    {crash_log_date, "$D0"},
+    %% Number of rotated crash logs to keep, 0 means keep only the
+    %% current one - default is 0
+    {crash_log_count, 5},
+    %% Whether to redirect error_logger messages into lager - defaults to true
+    {error_logger_redirect, true},
+
+    %% How big the gen_event mailbox can get before it is switched into sync mode
+    {async_threshold, 20},
+    %% Switch back to async mode, when gen_event mailbox size decrease from `async_threshold'
+    %% to async_threshold - async_threshold_window
+    {async_threshold_window, 5},
+
+    {handlers, [
+      %% debug | info | warning | error, 日志级别
+      {lager_console_backend, debug},
+      {lager_file_backend, [{file, "log/error.log"}, {level, error}]},
+      {lager_file_backend, [{file, "log/debug.log"}, {level, debug}]},
+      {lager_file_backend, [{file, "log/info.log"}, {level, info}]}
+    ]}
+  ]}
+
+].

config/vm.args

@@ -0,0 +1,17 @@
+-name iot
+
+-setcookie iot_cookie
+
++K true
++A30
+
+-mnesia dir '"/tmp/iot"'
+-mnesia dump_log_write_threshold 50000
+-mnesia dc_dump_limit 40
+
+-sbt db
+
++K true
++A 128
++P 1048576
++t 10485760

rebar.config

@@ -0,0 +1,42 @@
+{erl_opts, [debug_info]}.
+{deps, [
+    {poolboy, ".*", {git, "https://github.com/devinus/poolboy.git", {tag, "1.5.1"}}},
+    {hackney, ".*", {git, "https://github.com/benoitc/hackney.git", {tag, "1.16.0"}}},
+    {sync, ".*", {git, "https://github.com/rustyio/sync.git", {branch, "master"}}},
+    {cowboy, ".*", {git, "https://github.com/ninenines/cowboy.git", {tag, "2.5.0"}}},
+    {jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.0.5"}}},
+    {parse_trans, ".*", {git, "https://github.com/uwiger/parse_trans", {tag, "3.0.0"}}},
+    {lager, ".*", {git,"https://github.com/basho/lager", {tag, "3.2.4"}}}
+]}.
+
+{relx, [{release, {iot, "0.1.0"},
+         [iot,
+          sasl]},
+
+        {mode, dev},
+
+        %% automatically picked up if the files
+        %% exist but can be set manually, which
+        %% is required if the names aren't exactly
+        %% sys.config and vm.args
+        {sys_config, "./config/sys.config"},
+        {vm_args, "./config/vm.args"}
+
+        %% the .src form of the configuration files do
+        %% not require setting RELX_REPLACE_OS_VARS
+        %% {sys_config_src, "./config/sys.config.src"},
+        %% {vm_args_src, "./config/vm.args.src"}
+]}.
+
+{profiles, [{prod, [{relx,
+                     [%% prod is the default mode when prod
+                      %% profile is used, so does not have
+                      %% to be explicitly included like this
+                      {mode, prod}
+
+                      %% use minimal mode to exclude ERTS
+                      %% {mode, minimal}
+                     ]
+            }]}]}.
+
+{erl_opts, [{parse_transform,lager_transform}]}.

rebar.lock

@@ -0,0 +1,66 @@
+{"1.2.0",
+[{<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.2">>},1},
+ {<<"cowboy">>,
+  {git,"https://github.com/ninenines/cowboy.git",
+       {ref,"c998673eb009da2ea4dc0e6ef0332534cf679cc4"}},
+  0},
+ {<<"cowlib">>,
+  {git,"https://github.com/ninenines/cowlib",
+       {ref,"106ba84bb04537879d8ce59321a04e0682110b91"}},
+  1},
+ {<<"fs">>,{pkg,<<"fs">>,<<"6.1.1">>},1},
+ {<<"goldrush">>,
+  {git,"https://github.com/basho/goldrush.git",
+       {ref,"8f1b715d36b650ec1e1f5612c00e28af6ab0de82"}},
+  1},
+ {<<"hackney">>,
+  {git,"https://github.com/benoitc/hackney.git",
+       {ref,"f3e9292db22c807e73f57a8422402d6b423ddf5f"}},
+  0},
+ {<<"idna">>,{pkg,<<"idna">>,<<"6.0.1">>},1},
+ {<<"jiffy">>,
+  {git,"https://github.com/davisp/jiffy.git",
+       {ref,"6dadc0cd22b06e2b1972ee8aba5708c478418926"}},
+  0},
+ {<<"lager">>,
+  {git,"https://github.com/basho/lager",
+       {ref,"81eaef0ce98fdbf64ab95665e3bc2ec4b24c7dac"}},
+  0},
+ {<<"metrics">>,{pkg,<<"metrics">>,<<"1.0.1">>},1},
+ {<<"mimerl">>,{pkg,<<"mimerl">>,<<"1.2.0">>},1},
+ {<<"parse_trans">>,
+  {git,"https://github.com/uwiger/parse_trans",
+       {ref,"6f3645afb43c7c57d61b54ef59aecab288ce1013"}},
+  0},
+ {<<"poolboy">>,
+  {git,"https://github.com/devinus/poolboy.git",
+       {ref,"3bb48a893ff5598f7c73731ac17545206d259fac"}},
+  0},
+ {<<"ranch">>,
+  {git,"https://github.com/ninenines/ranch",
+       {ref,"9b8ed47d789412b0021bfc1f94f1c17c387c721c"}},
+  1},
+ {<<"ssl_verify_fun">>,{pkg,<<"ssl_verify_fun">>,<<"1.1.6">>},1},
+ {<<"sync">>,
+  {git,"https://github.com/rustyio/sync.git",
+       {ref,"3f0049e809ffe303ae2cd395217a025ce6e758ae"}},
+  0},
+ {<<"unicode_util_compat">>,{pkg,<<"unicode_util_compat">>,<<"0.5.0">>},2}]}.
+[
+{pkg_hash,[
+ {<<"certifi">>, <<"B7CFEAE9D2ED395695DD8201C57A2D019C0C43ECAF8B8BCB9320B40D6662F340">>},
+ {<<"fs">>, <<"9D147B944D60CFA48A349F12D06C8EE71128F610C90870BDF9A6773206452ED0">>},
+ {<<"idna">>, <<"1D038FB2E7668CE41FBF681D2C45902E52B3CB9E9C77B55334353B222C2EE50C">>},
+ {<<"metrics">>, <<"25F094DEA2CDA98213CECC3AEFF09E940299D950904393B2A29D191C346A8486">>},
+ {<<"mimerl">>, <<"67E2D3F571088D5CFD3E550C383094B47159F3EEE8FFA08E64106CDF5E981BE3">>},
+ {<<"ssl_verify_fun">>, <<"CF344F5692C82D2CD7554F5EC8FD961548D4FD09E7D22F5B62482E5AEAEBD4B0">>},
+ {<<"unicode_util_compat">>, <<"8516502659002CEC19E244EBD90D312183064BE95025A319A6C7E89F4BCCD65B">>}]},
+{pkg_hash_ext,[
+ {<<"certifi">>, <<"3B3B5F36493004AC3455966991EAF6E768CE9884693D9968055AEEEB1E575040">>},
+ {<<"fs">>, <<"EF94E95FFE79916860649FED80AC62B04C322B0BB70F5128144C026B4D171F8B">>},
+ {<<"idna">>, <<"A02C8A1C4FD601215BB0B0324C8A6986749F807CE35F25449EC9E69758708122">>},
+ {<<"metrics">>, <<"69B09ADDDC4F74A40716AE54D140F93BEB0FB8978D8636EADED0C31B6F099F16">>},
+ {<<"mimerl">>, <<"F278585650AA581986264638EBF698F8BB19DF297F66AD91B18910DFC6E19323">>},
+ {<<"ssl_verify_fun">>, <<"BDB0D2471F453C88FF3908E7686F86F9BE327D065CC1EC16FA4540197EA04680">>},
+ {<<"unicode_util_compat">>, <<"D48D002E15F5CC105A696CF2F1BBB3FC72B4B770A184D8420C8DB20DA2674B38">>}]}
+].

run

@@ -0,0 +1,5 @@
+#! /bin/sh
+rebar3 compile
+rebar3 release
+
+_build/default/rel/iot/bin/iot console