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client_v2.go
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client_v2.go
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/*
* Copyright 2023 The Dragonfly Authors
*
* 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.
*/
//go:generate mockgen -destination mocks/client_v2_mock.go -source client_v2.go -package mocks
package client
import (
"context"
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
grpc_retry "github.com/grpc-ecosystem/go-grpc-middleware/retry"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
"google.golang.org/grpc"
commonv2 "d7y.io/api/v2/pkg/apis/common/v2"
dfdaemonv2 "d7y.io/api/v2/pkg/apis/dfdaemon/v2"
logger "d7y.io/dragonfly/v2/internal/dflog"
)
// GetV2 returns v2 version of the dfdaemon client.
func GetV2(ctx context.Context, target string, opts ...grpc.DialOption) (V2, error) {
conn, err := grpc.DialContext(
ctx,
target,
append([]grpc.DialOption{
grpc.WithUnaryInterceptor(grpc_middleware.ChainUnaryClient(
otelgrpc.UnaryClientInterceptor(),
grpc_prometheus.UnaryClientInterceptor,
grpc_zap.UnaryClientInterceptor(logger.GrpcLogger.Desugar()),
grpc_retry.UnaryClientInterceptor(
grpc_retry.WithMax(maxRetries),
grpc_retry.WithBackoff(grpc_retry.BackoffLinear(backoffWaitBetween)),
),
)),
grpc.WithStreamInterceptor(grpc_middleware.ChainStreamClient(
otelgrpc.StreamClientInterceptor(),
grpc_prometheus.StreamClientInterceptor,
grpc_zap.StreamClientInterceptor(logger.GrpcLogger.Desugar()),
)),
}, opts...)...,
)
if err != nil {
return nil, err
}
return &v2{
DfdaemonClient: dfdaemonv2.NewDfdaemonClient(conn),
ClientConn: conn,
}, nil
}
// V2 is the interface for v2 version of the grpc client.
type V2 interface {
// SyncPieces syncs pieces from the other peers.
SyncPieces(context.Context, ...grpc.CallOption) (dfdaemonv2.Dfdaemon_SyncPiecesClient, error)
// DownloadTask downloads task back-to-source.
DownloadTask(context.Context, *dfdaemonv2.DownloadTaskRequest, ...grpc.CallOption) error
// UploadTask uploads task to p2p network.
UploadTask(context.Context, *dfdaemonv2.UploadTaskRequest, ...grpc.CallOption) error
// StatTask stats task information.
StatTask(context.Context, *dfdaemonv2.StatTaskRequest, ...grpc.CallOption) (*commonv2.Task, error)
// DeleteTask deletes task from p2p network.
DeleteTask(context.Context, *dfdaemonv2.DeleteTaskRequest, ...grpc.CallOption) error
// Close tears down the ClientConn and all underlying connections.
Close() error
}
// v2 provides v2 version of the dfdaemon grpc function.
type v2 struct {
dfdaemonv2.DfdaemonClient
*grpc.ClientConn
}
// Trigger client to download file.
func (v *v2) SyncPieces(ctx context.Context, opts ...grpc.CallOption) (dfdaemonv2.Dfdaemon_SyncPiecesClient, error) {
return v.DfdaemonClient.SyncPieces(
ctx,
opts...,
)
}
// DownloadTask downloads task back-to-source.
func (v *v2) DownloadTask(ctx context.Context, req *dfdaemonv2.DownloadTaskRequest, opts ...grpc.CallOption) error {
ctx, cancel := context.WithTimeout(ctx, contextTimeout)
defer cancel()
_, err := v.DfdaemonClient.DownloadTask(
ctx,
req,
opts...,
)
return err
}
// UploadTask uploads task to p2p network.
func (v *v2) UploadTask(ctx context.Context, req *dfdaemonv2.UploadTaskRequest, opts ...grpc.CallOption) error {
ctx, cancel := context.WithTimeout(ctx, contextTimeout)
defer cancel()
_, err := v.DfdaemonClient.UploadTask(
ctx,
req,
opts...,
)
return err
}
// StatTask stats task information.
func (v *v2) StatTask(ctx context.Context, req *dfdaemonv2.StatTaskRequest, opts ...grpc.CallOption) (*commonv2.Task, error) {
ctx, cancel := context.WithTimeout(ctx, contextTimeout)
defer cancel()
return v.DfdaemonClient.StatTask(
ctx,
req,
opts...,
)
}
// DeleteTask deletes task from p2p network.
func (v *v2) DeleteTask(ctx context.Context, req *dfdaemonv2.DeleteTaskRequest, opts ...grpc.CallOption) error {
ctx, cancel := context.WithTimeout(ctx, contextTimeout)
defer cancel()
_, err := v.DfdaemonClient.DeleteTask(
ctx,
req,
opts...,
)
return err
}