138 lines
4.8 KiB
Go
138 lines
4.8 KiB
Go
/*
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* Copyright 2023 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//go:generate mockgen -destination mocks/client_v2_mock.go -source client_v2.go -package mocks
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package client
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import (
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"context"
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grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
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grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
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grpc_retry "github.com/grpc-ecosystem/go-grpc-middleware/retry"
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grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
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"google.golang.org/grpc"
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"google.golang.org/grpc/balancer"
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dfdaemonv2 "d7y.io/api/v2/pkg/apis/dfdaemon/v2"
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logger "d7y.io/dragonfly/v2/internal/dflog"
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pkgbalancer "d7y.io/dragonfly/v2/pkg/balancer"
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"d7y.io/dragonfly/v2/pkg/resolver"
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"d7y.io/dragonfly/v2/pkg/rpc"
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"d7y.io/dragonfly/v2/scheduler/config"
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)
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// GetV2 returns v2 version of the dfdaemon client.
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func GetV2(ctx context.Context, dynconfig config.DynconfigInterface, opts ...grpc.DialOption) (V2, error) {
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// Register resolver and balancer.
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resolver.RegisterSeedPeer(dynconfig)
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builder, pickerBuilder := pkgbalancer.NewConsistentHashingBuilder()
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balancer.Register(builder)
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conn, err := grpc.DialContext(
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ctx,
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resolver.SeedPeerVirtualTarget,
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append([]grpc.DialOption{
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grpc.WithIdleTimeout(0),
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grpc.WithDefaultServiceConfig(pkgbalancer.BalancerServiceConfig),
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grpc.WithUnaryInterceptor(grpc_middleware.ChainUnaryClient(
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grpc_prometheus.UnaryClientInterceptor,
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grpc_zap.UnaryClientInterceptor(logger.GrpcLogger.Desugar()),
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grpc_retry.UnaryClientInterceptor(
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grpc_retry.WithMax(maxRetries),
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grpc_retry.WithBackoff(grpc_retry.BackoffLinear(backoffWaitBetween)),
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),
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rpc.RefresherUnaryClientInterceptor(dynconfig),
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)),
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grpc.WithStreamInterceptor(grpc_middleware.ChainStreamClient(
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grpc_prometheus.StreamClientInterceptor,
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grpc_zap.StreamClientInterceptor(logger.GrpcLogger.Desugar()),
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rpc.RefresherStreamClientInterceptor(dynconfig),
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)),
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}, opts...)...,
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)
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if err != nil {
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return nil, err
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}
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return &v2{
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DfdaemonUploadClient: dfdaemonv2.NewDfdaemonUploadClient(conn),
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ClientConn: conn,
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ConsistentHashingPickerBuilder: pickerBuilder,
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}, nil
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}
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// V2 is the interface for v2 version of the grpc client.
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type V2 interface {
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// SyncPieces syncs pieces from the other peers.
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SyncPieces(context.Context, *dfdaemonv2.SyncPiecesRequest, ...grpc.CallOption) (dfdaemonv2.DfdaemonUpload_SyncPiecesClient, error)
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// DownloadPiece downloads piece from the other peer.
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DownloadPiece(context.Context, *dfdaemonv2.DownloadPieceRequest, ...grpc.CallOption) (*dfdaemonv2.DownloadPieceResponse, error)
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// TriggerDownloadTask triggers download task from the other peer.
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TriggerDownloadTask(context.Context, string, *dfdaemonv2.TriggerDownloadTaskRequest, ...grpc.CallOption) error
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// Close tears down the ClientConn and all underlying connections.
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Close() error
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}
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// v2 provides v2 version of the dfdaemon grpc function.
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type v2 struct {
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dfdaemonv2.DfdaemonUploadClient
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*grpc.ClientConn
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*pkgbalancer.ConsistentHashingPickerBuilder
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}
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// SyncPieces syncs pieces from the other peers.
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func (v *v2) SyncPieces(ctx context.Context, req *dfdaemonv2.SyncPiecesRequest, opts ...grpc.CallOption) (dfdaemonv2.DfdaemonUpload_SyncPiecesClient, error) {
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ctx, cancel := context.WithTimeout(ctx, contextTimeout)
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defer cancel()
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return v.DfdaemonUploadClient.SyncPieces(
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context.WithValue(ctx, pkgbalancer.ContextKey, req.TaskId),
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req,
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opts...,
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)
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}
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// DownloadPiece downloads piece from the other peer.
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func (v *v2) DownloadPiece(ctx context.Context, req *dfdaemonv2.DownloadPieceRequest, opts ...grpc.CallOption) (*dfdaemonv2.DownloadPieceResponse, error) {
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ctx, cancel := context.WithTimeout(ctx, contextTimeout)
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defer cancel()
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return v.DfdaemonUploadClient.DownloadPiece(
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context.WithValue(ctx, pkgbalancer.ContextKey, req.TaskId),
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req,
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opts...,
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)
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}
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// TriggerDownloadTask triggers download task from the other peer.
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func (v *v2) TriggerDownloadTask(ctx context.Context, taskID string, req *dfdaemonv2.TriggerDownloadTaskRequest, opts ...grpc.CallOption) error {
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ctx, cancel := context.WithTimeout(ctx, contextTimeout)
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defer cancel()
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_, err := v.DfdaemonUploadClient.TriggerDownloadTask(
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context.WithValue(ctx, pkgbalancer.ContextKey, taskID),
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req,
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opts...,
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)
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return err
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}
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