forked from nacos-group/nacos-sdk-go
/
grpc_connection.go
105 lines (91 loc) · 3.13 KB
/
grpc_connection.go
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/*
* Copyright 1999-2020 Alibaba Group Holding Ltd.
*
* 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.
*/
package rpc
import (
"context"
"encoding/json"
"fmt"
"time"
"github.com/pkg/errors"
"github.com/wubin1989/nacos-sdk-go/v2/common/remote/rpc/rpc_request"
"github.com/wubin1989/nacos-sdk-go/v2/common/remote/rpc/rpc_response"
"github.com/wubin1989/nacos-sdk-go/v2/util"
"github.com/golang/protobuf/ptypes/any"
nacos_grpc_service "github.com/wubin1989/nacos-sdk-go/v2/api/grpc"
"google.golang.org/grpc"
)
type GrpcConnection struct {
*Connection
client nacos_grpc_service.RequestClient
biStreamClient nacos_grpc_service.BiRequestStream_RequestBiStreamClient
}
func NewGrpcConnection(serverInfo ServerInfo, connectionId string, conn *grpc.ClientConn,
client nacos_grpc_service.RequestClient, biStreamClient nacos_grpc_service.BiRequestStream_RequestBiStreamClient) *GrpcConnection {
return &GrpcConnection{
Connection: &Connection{
serverInfo: serverInfo,
connectionId: connectionId,
abandon: false,
conn: conn,
},
client: client,
biStreamClient: biStreamClient,
}
}
func (g *GrpcConnection) request(request rpc_request.IRequest, timeoutMills int64, client *RpcClient) (rpc_response.IResponse, error) {
p := convertRequest(request)
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeoutMills)*time.Millisecond)
defer cancel()
responsePayload, err := g.client.Request(ctx, p)
if err != nil {
return nil, err
}
responseFunc, ok := rpc_response.ClientResponseMapping[responsePayload.Metadata.GetType()]
if !ok {
return nil, errors.New(fmt.Sprintf("request:%s,unsupported response type:%s", request.GetRequestType(),
responsePayload.Metadata.GetType()))
}
response := responseFunc()
err = json.Unmarshal(responsePayload.GetBody().Value, response)
return response, err
}
func (g *GrpcConnection) close() {
g.Connection.close()
}
func (g *GrpcConnection) biStreamSend(payload *nacos_grpc_service.Payload) error {
return g.biStreamClient.Send(payload)
}
func convertRequest(r rpc_request.IRequest) *nacos_grpc_service.Payload {
Metadata := nacos_grpc_service.Metadata{
Type: r.GetRequestType(),
Headers: r.GetHeaders(),
ClientIp: util.LocalIP(),
}
return &nacos_grpc_service.Payload{
Metadata: &Metadata,
Body: &any.Any{Value: []byte(r.GetBody(r))},
}
}
func convertResponse(r rpc_response.IResponse) *nacos_grpc_service.Payload {
Metadata := nacos_grpc_service.Metadata{
Type: r.GetResponseType(),
ClientIp: util.LocalIP(),
}
return &nacos_grpc_service.Payload{
Metadata: &Metadata,
Body: &any.Any{Value: []byte(r.GetBody())},
}
}