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client.go
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client.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2018 CERN and copyright holders of ALICE O².
* Author: Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
// Package coconut implements the O² Control and Configuration Utility.
package coconut
import (
"context"
"github.com/AliceO2Group/Control/coconut/protos"
"github.com/AliceO2Group/Control/common/logger"
"github.com/sirupsen/logrus"
"google.golang.org/grpc"
)
var log = logger.New(logrus.StandardLogger(), "coconut")
const GrpcMaxCallRecvSize = 100 * 1024 * 1024
type internalState struct {
}
func NewClient(cxt context.Context, cancel context.CancelFunc, endpoint string) *RpcClient {
conn, err := grpc.DialContext(
cxt,
endpoint,
grpc.WithInsecure(),
grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(GrpcMaxCallRecvSize)),
)
if err != nil {
log.WithField("error", err.Error()).
WithField("endpoint", endpoint).
Errorf("cannot dial RPC endpoint")
cancel()
return nil
}
state := &internalState{}
client := &RpcClient{
ControlClient: pb.NewControlClient(conn),
state: state,
conn: conn,
}
return client
}
type RpcClient struct {
pb.ControlClient
state *internalState
conn *grpc.ClientConn
}
func (m *RpcClient) Close() error {
return m.conn.Close()
}