github.com/uber/kraken@v0.1.4/lib/torrent/scheduler/constructors.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package scheduler
    15  
    16  import (
    17  	"crypto/tls"
    18  	"fmt"
    19  
    20  	"github.com/uber/kraken/core"
    21  	"github.com/uber/kraken/lib/blobrefresh"
    22  	"github.com/uber/kraken/lib/hashring"
    23  	"github.com/uber/kraken/lib/store"
    24  	"github.com/uber/kraken/lib/torrent/networkevent"
    25  	"github.com/uber/kraken/lib/torrent/scheduler/announcequeue"
    26  	"github.com/uber/kraken/lib/torrent/storage/agentstorage"
    27  	"github.com/uber/kraken/lib/torrent/storage/originstorage"
    28  	"github.com/uber/kraken/tracker/announceclient"
    29  	"github.com/uber/kraken/tracker/metainfoclient"
    30  
    31  	"github.com/uber-go/tally"
    32  )
    33  
    34  // NewAgentScheduler creates and starts a ReloadableScheduler configured for an agent.
    35  func NewAgentScheduler(
    36  	config Config,
    37  	stats tally.Scope,
    38  	pctx core.PeerContext,
    39  	cads *store.CADownloadStore,
    40  	netevents networkevent.Producer,
    41  	trackers hashring.PassiveRing,
    42  	tls *tls.Config) (ReloadableScheduler, error) {
    43  
    44  	s, err := newScheduler(
    45  		config,
    46  		agentstorage.NewTorrentArchive(stats, cads, metainfoclient.New(trackers, tls)),
    47  		stats,
    48  		pctx,
    49  		announceclient.New(pctx, trackers, tls),
    50  		netevents)
    51  	if err != nil {
    52  		return nil, fmt.Errorf("new scheduler: %s", err)
    53  	}
    54  
    55  	aq := func() announcequeue.Queue { return announcequeue.New() }
    56  	rs := makeReloadable(s, aq)
    57  	if err := rs.start(aq()); err != nil {
    58  		return nil, fmt.Errorf("start: %s", err)
    59  	}
    60  
    61  	return rs, nil
    62  }
    63  
    64  // NewOriginScheduler creates and starts a ReloadableScheduler configured for an origin.
    65  func NewOriginScheduler(
    66  	config Config,
    67  	stats tally.Scope,
    68  	pctx core.PeerContext,
    69  	cas *store.CAStore,
    70  	netevents networkevent.Producer,
    71  	blobRefresher *blobrefresh.Refresher) (ReloadableScheduler, error) {
    72  
    73  	s, err := newScheduler(
    74  		config,
    75  		originstorage.NewTorrentArchive(cas, blobRefresher),
    76  		stats,
    77  		pctx,
    78  		announceclient.Disabled(),
    79  		netevents)
    80  	if err != nil {
    81  		return nil, err
    82  	}
    83  
    84  	aq := func() announcequeue.Queue { return announcequeue.Disabled() }
    85  	rs := makeReloadable(s, aq)
    86  	if err := rs.start(aq()); err != nil {
    87  		return nil, fmt.Errorf("start: %s", err)
    88  	}
    89  
    90  	return rs, nil
    91  }