/
protocol.go
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/
protocol.go
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// Copyright 2020-present Open Networking Foundation.
//
// 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.
package gossip
import (
protocolapi "github.com/atomix/atomix-api/go/atomix/protocol"
test "github.com/atomix/atomix-go-client/pkg/atomix/test"
"github.com/atomix/atomix-go-framework/pkg/atomix/cluster"
"github.com/atomix/atomix-go-framework/pkg/atomix/driver/proxy/gossip"
)
type gossipOptions struct {
gossip.GossipConfig
}
// Option is a gossip protocol option
type Option interface {
apply(*gossipOptions)
}
type gossipOption struct {
applyFunc func(*gossipOptions)
}
func (g gossipOption) apply(options *gossipOptions) {
g.applyFunc(options)
}
func newOption(f func(options *gossipOptions)) Option {
return &gossipOption{
applyFunc: f,
}
}
// WithLogicalClock configures the gossip protocol to use a logical clock for primitives
func WithLogicalClock() Option {
return newOption(func(options *gossipOptions) {
options.Clock = &gossip.GossipClock{
Clock: &gossip.GossipClock_Logical{
Logical: &gossip.LogicalClock{},
},
}
})
}
// WithPhysicalClock configures the gossip protocol to use a physical clock for primitives
func WithPhysicalClock() Option {
return newOption(func(options *gossipOptions) {
options.Clock = &gossip.GossipClock{
Clock: &gossip.GossipClock_Physical{
Physical: &gossip.PhysicalClock{},
},
}
})
}
// NewProtocol creates a new gossip test protocol
func NewProtocol(opts ...Option) test.Protocol {
options := gossipOptions{
GossipConfig: gossip.GossipConfig{
Clock: &gossip.GossipClock{
Clock: &gossip.GossipClock_Logical{
Logical: &gossip.LogicalClock{},
},
},
},
}
for _, opt := range opts {
opt.apply(&options)
}
return &gossipProtocol{
options: options,
}
}
// gossipProtocol is a test protocol for gossip replication
type gossipProtocol struct {
options gossipOptions
}
func (p *gossipProtocol) NewReplica(network cluster.Network, replica protocolapi.ProtocolReplica, protocol protocolapi.ProtocolConfig) test.Replica {
return newReplica(network, replica, protocol)
}
func (p *gossipProtocol) NewClient(network cluster.Network, clientID string, protocol protocolapi.ProtocolConfig) test.Client {
return newClient(network, clientID, protocol, p.options)
}