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/*
* Copyright (c) 2023 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Data.Caching.Extensions
* File: CacheClientConfiguration.cs
*
* CacheClientConfiguration.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.Linq;
using System.Collections.Generic;
namespace VNLib.Data.Caching.Extensions.Clustering
{
/// <summary>
/// A fluent api configuration object for configuring a <see cref="FBMClient"/>
/// to connect to cache servers.
/// </summary>
public class CacheClientConfiguration
{
/// <summary>
/// Stores available cache servers to be used for discovery, and connections
/// </summary>
public INodeDiscoveryCollection NodeCollection { get; } = new NodeDiscoveryCollection();
/// <summary>
/// The authentication manager to use for signing and verifying messages to and from the cache servers
/// </summary>
public ICacheAuthManager AuthManager { get; private set; }
/// <summary>
/// The error handler to use for handling errors that occur during the discovery process
/// </summary>
public ICacheDiscoveryErrorHandler? ErrorHandler { get; private set; }
/// <summary>
/// Specifies if all connections should use TLS
/// </summary>
public bool UseTls { get; private set; }
internal Uri[]? WellKnownNodes { get; set; }
/// <summary>
/// Specifies the JWT authentication manager to use for signing and verifying JWTs
/// </summary>
/// <param name="manager">The authentication manager</param>
/// <returns>Chainable fluent object</returns>
public CacheClientConfiguration WithAuthenticator(ICacheAuthManager manager)
{
AuthManager = manager;
return this;
}
/// <summary>
/// Specifies if all connections should be using TLS
/// </summary>
/// <param name="useTls">A value that indicates if connections should use TLS</param>
public CacheClientConfiguration WithTls(bool useTls)
{
UseTls = useTls;
return this;
}
/// <summary>
/// Specifies the initial cache peers to connect to
/// </summary>
/// <param name="peers">The collection of servers to discover peers from and connect to</param>
/// <returns>Chainable fluent object</returns>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="ArgumentNullException"></exception>
public CacheClientConfiguration WithInitialPeers(IEnumerable<Uri> peers)
{
//Check null
_ = peers ?? throw new ArgumentNullException(nameof(peers));
//Store peer array
WellKnownNodes = peers.ToArray();
if (WellKnownNodes.Any(p => !p.IsAbsoluteUri))
{
WellKnownNodes = null;
throw new ArgumentException("All discoverable node uris must be in absolute form");
}
return this;
}
/// <summary>
/// Specifies the error handler to use for handling errors that occur during the discovery process
/// </summary>
/// <param name="handler">The error handler to use during a discovery</param>
/// <returns>Chainable fluent object</returns>
public CacheClientConfiguration WithErrorHandler(ICacheDiscoveryErrorHandler handler)
{
ErrorHandler = handler;
return this;
}
}
}
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