fix

apps/iot/include/iot.hrl

@@ -57,6 +57,9 @@
 %% ai相关的事件
 -define(EVENT_AI, 16#03).
 
+%% 指令相关
+-define(DIRECTIVE_ZD_CTRL, 16#01).
+
 %% 缓存数据库表
 -record(kv, {
     key :: binary(),

apps/iot/src/consumer/iot_zd_consumer.erl

@@ -22,6 +22,9 @@
 -define(SERVER, ?MODULE).
 -define(RETRY_INTERVAL, 5000).
 
+%% 执行超时时间
+-define(EXECUTE_TIMEOUT, 10 * 1000).
+
 %% 需要订阅的主题信息
 -define(Topics,[
     {<<"CET/NX/upload">>, 2}
@@ -98,8 +101,27 @@ handle_info({disconnect, ReasonCode, Properties}, State) ->
 %% 必须要做到消息的快速分发，数据的json反序列需要在host进程进行
 handle_info({publish, #{packet_id := _PacketId, payload := Payload, qos := Qos, topic := Topic}}, State) ->
     lager:debug("[iot_zd_consumer] Recv a topic: ~p, publish packet: ~ts, qos: ~p", [Topic, Payload, Qos]),
-    %% 将消息分发到对应的host进程去处理
+    case catch jiffy:decode(Payload, [return_maps]) of
+        #{<<"version">> := Version, <<"location_code">> := LocationCode, <<"properties">> := DirectiveParams} ->
+            %% 通过LocationCode查找到主机和Device_uuid
+            case redis_client:hgetall(LocationCode) of
+                {ok, #{<<"host_uuid">> := HostUUID, <<"device_uuid">> := DeviceUUID}} ->
+                    case iot_host:get_pid(HostUUID) of
+                        undefined ->
+                            lager:notice("[iot_zd_consumer] host uuid: ~p, not found", [HostUUID]);
+                        Pid ->
+                            ReceiverPid = self(),
+                            spawn(fun() ->
+                                DirectiveResult = iot_host:publish_directive(Pid, DeviceUUID, ?DIRECTIVE_ZD_CTRL, Version, DirectiveParams, ?EXECUTE_TIMEOUT),
+                                ReceiverPid ! {directive_reply, DirectiveResult}
+                                  end)
+                    end;
+                _ ->
+                    lager:notice("[iot_zd_consumer] location_code: ~p, not found in redis", [LocationCode])
+            end
+    end,
     {noreply, State};
+
 handle_info({puback, Packet = #{packet_id := _PacketId}}, State = #state{}) ->
     lager:debug("[iot_zd_consumer] receive puback packet: ~p", [Packet]),
     {noreply, State};
@@ -121,6 +143,10 @@ handle_info({'EXIT', ConnPid, Reason}, State = #state{conn_pid = ConnPid}) ->
 
     {noreply, State#state{conn_pid = undefined}};
 
+handle_info({directive_reply, Reply}, State = #state{}) ->
+    lager:debug("[iot_zd_consumer] get directive_reply: ~p", [Reply]),
+    {noreply, State};
+
 handle_info(Info, State = #state{}) ->
     lager:debug("[iot_zd_consumer] get info: ~p", [Info]),
     {noreply, State}.

apps/iot/src/redis/redis_client.erl

@@ -10,7 +10,7 @@
 -author("aresei").
 
 %% API
--export([hget/2]).
+-export([hget/2, hgetall/1]).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% HashTable处理
@@ -19,3 +19,24 @@
 -spec hget(Key :: binary(), Field :: binary()) -> {ok, Val :: any()} | {error, Reason :: binary()}.
 hget(Key, Field) when is_binary(Key), is_binary(Field) ->
     poolboy:transaction(redis_pool, fun(Conn) -> eredis:q(Conn, ["HGET", Key, Field]) end).
+
+-spec hgetall(Key :: binary()) -> {ok, Fields :: map()} | {error, Reason :: binary()}.
+hgetall(Key) when is_binary(Key) ->
+    poolboy:transaction(redis_pool, fun(Conn) ->
+        case eredis:q(Conn, ["HGETALL", Key]) of
+            {ok, Items} ->
+                {ok, to_map(Items)};
+            Error ->
+                Error
+        end
+                                    end).
+
+
+to_map(Items) when is_list(Items), length(Items) rem 2 == 0 ->
+    to_map(Items, #{}).
+to_map([], Target) ->
+    Target;
+to_map([K, V|Tail], Target) ->
+    to_map(Tail, Target#{K => V}).
+
+