tasks/common/membership/ringpop/hostinfo.go

// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
//
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// THE SOFTWARE.

// Package ringpop provides a service-based membership monitor
package ringpop

type hostInfo struct {
	addr   string // ip:port
	labels map[string]string
}

// newHostInfo creates a new *hostInfo instance
func newHostInfo(addr string, labels map[string]string) *hostInfo {
	if labels == nil {
		labels = make(map[string]string)
	}
	return &hostInfo{
		addr:   addr,
		labels: labels,
	}
}

// GetAddress returns the ip:port address
func (hi *hostInfo) GetAddress() string {
	return hi.addr
}

// Identity implements ringpop's Membership interface
func (hi *hostInfo) Identity() string {
	// For now, we just use the address as the identity.
	return hi.addr
}

// Label implements ringpop's Membership interface
func (hi *hostInfo) Label(key string) (string, bool) {
	value, ok := hi.labels[key]
	return value, ok
}

// SetLabel sets the label.
func (hi *hostInfo) SetLabel(key string, value string) {
	hi.labels[key] = value
}