/
member.go
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/
member.go
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// Copyright 2016 IBM Corporation
//
// 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 cluster
import (
"fmt"
"net"
"time"
)
// MemberID represents the ID of a member node in a cluster
type MemberID string
// Member represents a member node in a cluster
type Member interface {
// ID returns The ID of the member node
ID() MemberID
// IP returns the IP address of the member node
IP() net.IP
// Port returns the replication port number of the member node
Port() uint16
}
// NewMember creates a member with the specified IP and port number
func NewMember(ip net.IP, port uint16) Member {
return &member{
MemberIP: ip,
MemberPort: port,
}
}
// member is an implementation of the Member interface
type member struct {
MemberIP net.IP `json:"ip,omitempty"`
MemberPort uint16 `json:"port,omitempty"`
Timestamp time.Time `json:"timestamp,omitempty"`
}
func (m *member) ID() MemberID {
return MemberID(m.String())
}
func (m *member) IP() net.IP {
return m.MemberIP
}
func (m *member) Port() uint16 {
return m.MemberPort
}
func (m *member) String() string {
return fmt.Sprintf("%s:%d", m.MemberIP.String(), m.MemberPort)
}