forked from dragonflyoss/Dragonfly2
/
resource.go
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/
resource.go
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/*
* Copyright 2020 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 resource_mock.go -source resource.go -package resource
package resource
import (
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/credentials/insecure"
"github.com/XDTD/Dragonfly2/pkg/gc"
"github.com/XDTD/Dragonfly2/scheduler/config"
)
// Resource is the interface used for resource.
type Resource interface {
// SeedPeer interface.
SeedPeer() SeedPeer
// Host manager interface.
HostManager() HostManager
// Peer manager interface.
PeerManager() PeerManager
// Task manager interface.
TaskManager() TaskManager
// Stop resource serivce.
Stop() error
}
// resource contains content for resource.
type resource struct {
// seedPeer interface.
seedPeer SeedPeer
// Host manager interface.
hostManager HostManager
// Peer manager interface.
peerManager PeerManager
// Task manager interface.
taskManager TaskManager
// Scheduler config.
config *config.Config
// TransportCredentials stores the Authenticator required to setup a client connection.
transportCredentials credentials.TransportCredentials
}
// Option is a functional option for configuring the resource.
type Option func(r *resource)
// WithTransportCredentials returns a DialOption which configures a connection
// level security credentials (e.g., TLS/SSL).
func WithTransportCredentials(creds credentials.TransportCredentials) Option {
return func(r *resource) {
r.transportCredentials = creds
}
}
// New returns Resource interface.
func New(cfg *config.Config, gc gc.GC, dynconfig config.DynconfigInterface, options ...Option) (Resource, error) {
resource := &resource{config: cfg}
for _, opt := range options {
opt(resource)
}
// Initialize host manager interface.
hostManager, err := newHostManager(&cfg.Scheduler.GC, gc)
if err != nil {
return nil, err
}
resource.hostManager = hostManager
// Initialize task manager interface.
taskManager, err := newTaskManager(&cfg.Scheduler.GC, gc)
if err != nil {
return nil, err
}
resource.taskManager = taskManager
// Initialize peer manager interface.
peerManager, err := newPeerManager(&cfg.Scheduler.GC, gc)
if err != nil {
return nil, err
}
resource.peerManager = peerManager
// Initialize seed peer interface.
if cfg.SeedPeer.Enable {
dialOptions := []grpc.DialOption{}
if resource.transportCredentials != nil {
dialOptions = append(dialOptions, grpc.WithTransportCredentials(resource.transportCredentials))
} else {
dialOptions = append(dialOptions, grpc.WithTransportCredentials(insecure.NewCredentials()))
}
client, err := newSeedPeerClient(dynconfig, hostManager, dialOptions...)
if err != nil {
return nil, err
}
resource.seedPeer = newSeedPeer(client, peerManager, hostManager)
}
return resource, nil
}
// SeedPeer interface.
func (r *resource) SeedPeer() SeedPeer {
return r.seedPeer
}
// Host manager interface.
func (r *resource) HostManager() HostManager {
return r.hostManager
}
// Peer manager interface.
func (r *resource) PeerManager() PeerManager {
return r.peerManager
}
// Task manager interface.
func (r *resource) TaskManager() TaskManager {
return r.taskManager
}
// Stop resource serivce.
func (r *resource) Stop() error {
if r.config.SeedPeer.Enable {
return r.seedPeer.Stop()
}
return nil
}