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88 lines
2.9 KiB
88 lines
2.9 KiB
package common
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import (
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"Open_IM/internal/fault_tolerant"
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"Open_IM/pkg/common/constant"
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"Open_IM/pkg/common/trace_log"
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"context"
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utils "github.com/OpenIMSDK/open_utils"
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"github.com/gin-gonic/gin"
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"reflect"
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)
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func ApiToRpc(c *gin.Context, apiReq, apiResp interface{}, rpcName string, fn interface{}, rpcFuncName string, tokenFunc func(token string, operationID string) (string, error)) {
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nCtx := trace_log.NewCtx(c, rpcFuncName)
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defer trace_log.ShowLog(nCtx)
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if err := c.BindJSON(apiReq); err != nil {
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trace_log.WriteErrorResponse(nCtx, "BindJSON", err)
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return
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}
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reqValue := reflect.ValueOf(apiReq).Elem()
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operationID := reqValue.FieldByName("OperationID").String()
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trace_log.SetOperationID(nCtx, operationID)
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trace_log.SetContextInfo(nCtx, "BindJSON", nil, "params", apiReq)
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etcdConn, err := fault_tolerant.GetDefaultConn(rpcName, operationID)
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if err != nil {
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trace_log.WriteErrorResponse(nCtx, "GetDefaultConn", err)
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return
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}
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rpc := reflect.ValueOf(fn).Call([]reflect.Value{
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reflect.ValueOf(etcdConn),
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})[0].MethodByName(rpcFuncName) // rpc func
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rpcReqPtr := reflect.New(rpc.Type().In(1).Elem()) // *req参数
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var opUserID string
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if tokenFunc != nil {
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var err error
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opUserID, err = tokenFunc(c.GetHeader("token"), operationID)
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if err != nil {
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trace_log.WriteErrorResponse(nCtx, "TokenFunc", err)
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return
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}
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}
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if opID := rpcReqPtr.Elem().FieldByName("OperationID"); opID.IsValid() {
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opID.SetString(operationID)
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if opU := rpcReqPtr.Elem().FieldByName("OpUserID"); opU.IsValid() {
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opU.SetString(opUserID)
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}
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} else {
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op := rpcReqPtr.Elem().FieldByName("Operation").Elem()
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op.FieldByName("OperationID").SetString(operationID)
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op.FieldByName("OpUserID").SetString(opUserID)
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}
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if err := utils.CopyStructFields(rpcReqPtr.Interface(), apiReq); err != nil {
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trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcReq", err)
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return
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}
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respArr := rpc.Call([]reflect.Value{
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reflect.ValueOf(context.Context(c)), // context.Context
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rpcReqPtr, // rpc apiReq
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}) // respArr => (apiResp, error)
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if !respArr[1].IsNil() { // rpc err != nil
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err := respArr[1].Interface().(error)
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trace_log.WriteErrorResponse(nCtx, rpcFuncName, err, "rpc req", rpcReqPtr.Interface())
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return
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}
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rpcResp := respArr[0].Elem()
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trace_log.SetContextInfo(nCtx, rpcFuncName, nil, "rpc req", rpcReqPtr.Interface(), "resp", rpcResp.Interface())
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commonResp := rpcResp.FieldByName("CommonResp").Elem()
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errCodeVal := commonResp.FieldByName("ErrCode")
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errMsgVal := commonResp.FieldByName("ErrMsg").Interface().(string)
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errCode := errCodeVal.Interface().(int32)
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if errCode != 0 {
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trace_log.WriteErrorResponse(nCtx, "RpcErrCode", &constant.ErrInfo{
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ErrCode: errCode,
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ErrMsg: errMsgVal,
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})
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return
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}
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if apiResp != nil {
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if err := utils.CopyStructFields(apiResp, rpcResp.Interface()); err != nil {
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trace_log.WriteErrorResponse(nCtx, "CopyStructFields_RpcResp", err)
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return
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}
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}
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trace_log.SetSuccess(nCtx, rpcFuncName, apiResp)
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}
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