126 lines
3.4 KiB
Go
126 lines
3.4 KiB
Go
package mqtt
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import (
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"context"
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"fmt"
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"github.com/eclipse/paho.golang/autopaho"
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"github.com/eclipse/paho.golang/paho"
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"github.com/sagikazarmark/slog-shim"
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"google.golang.org/protobuf/proto"
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"google.golang.org/protobuf/reflect/protoreflect"
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"joylink.club/bj-rtsts-server/dto/state_proto"
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)
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var mqttClient *MqttClient
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// 客户端
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type MqttClient struct {
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cc *autopaho.ClientConfig
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cm *autopaho.ConnectionManager
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}
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// 初始化并启动MQTT客户端服务
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func Startup(cmc *MqttOptions) error {
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if err := checkConfig(cmc); err != nil {
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return err
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}
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cc, err := cmc.tryInto()
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if err != nil {
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return err
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}
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cm, err := autopaho.NewConnection(context.Background(), *cc)
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if err != nil {
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return err
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}
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mqttClient = &MqttClient{cc: cc, cm: cm}
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return nil
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}
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// 检查配置信息
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func checkConfig(cmc *MqttOptions) error {
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if cmc.AppId == "" {
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return fmt.Errorf("应用编号不能为空")
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}
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if cmc.ClientId == "" {
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return fmt.Errorf("客户端编号不能为空")
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}
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if cmc.BrokerUrl == "" {
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return fmt.Errorf("MQTT代理服务地址不能为空")
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}
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if cmc.Username == "" {
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return fmt.Errorf("MQTT用户名不能为空")
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}
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if cmc.Password == "" {
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return fmt.Errorf("MQTT密码不能为空")
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}
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return nil
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}
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func GetMsgClient() *MqttClient {
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return mqttClient
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}
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// 获取MQTT客户端id
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func GetClientId() string {
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return mqttClient.cc.ClientConfig.ClientID
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}
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// 发布数据
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func (client *MqttClient) pub(topic string, data protoreflect.ProtoMessage) error {
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if data == nil {
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return fmt.Errorf("发布数据引用为nil")
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}
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b, err := proto.Marshal(data)
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if err != nil {
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return err
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}
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if !MatchTopic(topic) {
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slog.Error("未知发布主题", "topic", topic, "data", data)
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return fmt.Errorf("未知发布主题: topic=%s", topic)
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}
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// else {
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// slog.Debug("发布主题", "topic", topic, "data", data)
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// }
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_, err = client.cm.Publish(context.Background(), &paho.Publish{
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Topic: topic,
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QoS: 0,
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Payload: b,
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})
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return err
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}
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// 发送仿真状态数据
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func (client *MqttClient) PubSimulationState(simulationId string, msg *state_proto.SimulationStatus) error {
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return client.pub(GetStateTopic(simulationId), msg)
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}
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func (c *MqttClient) PubTpapiServiceState(simulationId string, msg *state_proto.SimulationThirdPartyApiService) error {
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return c.pub(GetTpapiServiceTopic(simulationId), msg)
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}
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// 发送IBP状态数据
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func (client *MqttClient) PubIBPState(simulationId string, mapId int32, ibpId uint32, msg *state_proto.PushedDevicesStatus) error {
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return client.pub(GetIbpTopic(simulationId, mapId, ibpId), msg)
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}
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// 发送PSL状态数据
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func (client *MqttClient) PubPSLState(simulationId string, mapId int32, boxId uint32, msg *state_proto.PushedDevicesStatus) error {
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return client.pub(GetPslTopic(simulationId, mapId, boxId), msg)
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}
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// 发送继电器状态数据
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func (client *MqttClient) PubRCCState(simulationId string, mapId int32, msg *state_proto.PushedDevicesStatus) error {
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return client.pub(GetRccTopic(simulationId, mapId), msg)
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}
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// 发送站场图状态数据
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func (client *MqttClient) PubSfpState(simulationId string, mapId int32, msg *state_proto.PushedDevicesStatus) error {
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return client.pub(GetSfpTopic(simulationId, mapId), msg)
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}
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// 发送列车控制状态
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func (client *MqttClient) PubTrainControlState(simulationId string, trainId string, msg *state_proto.TrainControlState) error {
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return client.pub(GetTrainControlTopic(simulationId, trainId), msg)
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}
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