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/*
* Copyright (c) 2023 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Data.Caching.Extensions
* File: CacheNodeAdvertisment.cs
*
* CacheNodeAdvertisment.cs is part of VNLib.Data.Caching.Extensions which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Data.Caching.Extensions is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Data.Caching.Extensions is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System;
using System.Text.Json.Serialization;
namespace VNLib.Data.Caching.Extensions.Clustering
{
/// <summary>
/// Represents a node that can be advertised to clients
/// </summary>
public class CacheNodeAdvertisment : IEquatable<CacheNodeAdvertisment>
{
/// <summary>
/// The endpoint for clients to connect to to access the cache
/// </summary>
[JsonIgnore]
public Uri? ConnectEndpoint { get; set; }
/// <summary>
/// Gets the address for clients to connect to to discover other discovertable nodes
/// </summary>
[JsonIgnore]
public Uri? DiscoveryEndpoint { get; set; }
/// <summary>
/// Gets the unique identifier for this node
/// </summary>
[JsonPropertyName("iss")]
public string NodeId { get; set; }
[JsonPropertyName("url")]
public string? url
{
get => ConnectEndpoint?.ToString();
set => ConnectEndpoint = value == null ? null : new Uri(value);
}
[JsonPropertyName("dis")]
public string? dis
{
get => DiscoveryEndpoint?.ToString();
set => DiscoveryEndpoint = value == null ? null : new Uri(value);
}
/// <summary>
/// Determines if the given node is equal to this node, by comparing the node ids
/// </summary>
/// <param name="obj">The other node advertisment to compare</param>
/// <returns>True if the nodes are equal, false otherwise</returns>
public override bool Equals(object? obj) => obj is CacheNodeAdvertisment ad && Equals(ad);
/// <summary>
/// Gets the hash code for this node, based on the node id
/// </summary>
/// <returns>The instance hash-code</returns>
public override int GetHashCode() => string.GetHashCode(NodeId, StringComparison.OrdinalIgnoreCase);
/// <summary>
/// Determines if the given node is equal to this node, by comparing the node ids
/// </summary>
/// <param name="other">The other node advertisment to compare</param>
/// <returns>True if the nodes are equal, false otherwise</returns>
public bool Equals(CacheNodeAdvertisment? other) => string.Equals(NodeId, other?.NodeId, StringComparison.OrdinalIgnoreCase);
/// <summary>
/// Formats a string representation of this node
/// </summary>
/// <returns>The formatted information string</returns>
public override string ToString()
{
return $"NodeId: {NodeId} Connect: {url}, Discover?: {dis}";
}
}
}
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