amadzarak
78 lines
2.8 KiB
C#
78 lines
2.8 KiB
C#
using System.Xml.Serialization;
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using ControlPlane.Core.Models;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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namespace ControlPlane.Core.Services;
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/// <summary>
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/// Reads and writes per-tenant XML config files under the ClientAssets folder.
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/// One file per tenant: {subdomain}.xml
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/// Thread-safe for concurrent reads; writes are serialized per subdomain via per-file locking.
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/// </summary>
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public class TenantRegistryService
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{
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private readonly string _folder;
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private readonly ILogger<TenantRegistryService> _logger;
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private static readonly XmlSerializer Serializer = new(typeof(TenantRecord));
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// One lock object per subdomain so writes to different tenants never block each other
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private readonly System.Collections.Concurrent.ConcurrentDictionary<string, object> _locks = new(StringComparer.OrdinalIgnoreCase);
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public TenantRegistryService(IConfiguration configuration, ILogger<TenantRegistryService> logger)
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{
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_folder = configuration["ClientAssets__Folder"] ?? configuration["ClientAssets:Folder"]
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?? Path.GetFullPath(Path.Combine(AppContext.BaseDirectory, "..", "ClientAssets"));
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_logger = logger;
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Directory.CreateDirectory(_folder);
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}
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// -- Write --
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public void Save(TenantRecord record)
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{
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var path = FilePath(record.Subdomain);
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var gate = _locks.GetOrAdd(record.Subdomain, _ => new object());
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lock (gate)
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{
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using var writer = new StreamWriter(path, append: false, System.Text.Encoding.UTF8);
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Serializer.Serialize(writer, record);
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}
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_logger.LogInformation("Saved tenant record: {Path}", path);
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}
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// -- Read --
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public TenantRecord? TryGet(string subdomain)
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{
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var path = FilePath(subdomain);
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if (!File.Exists(path)) return null;
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using var reader = new StreamReader(path, System.Text.Encoding.UTF8);
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return (TenantRecord?)Serializer.Deserialize(reader);
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}
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public IReadOnlyList<TenantRecord> GetAll()
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{
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var results = new List<TenantRecord>();
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foreach (var file in Directory.EnumerateFiles(_folder, "*.xml"))
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{
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try
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{
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using var reader = new StreamReader(file, System.Text.Encoding.UTF8);
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if (Serializer.Deserialize(reader) is TenantRecord record)
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results.Add(record);
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}
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catch (Exception ex)
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{
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_logger.LogWarning(ex, "Skipping malformed tenant file: {File}", file);
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}
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}
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return results;
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}
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public bool Exists(string subdomain) => File.Exists(FilePath(subdomain));
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private string FilePath(string subdomain) =>
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Path.Combine(_folder, $"{subdomain.ToLowerInvariant()}.xml");
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}
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