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https://github.com/ClemensFischer/XAML-Map-Control.git
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File scoped namespaces
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ClemensFischer
parent
c14377f976
commit
65aba44af6
152 changed files with 11962 additions and 12115 deletions
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@ -7,250 +7,249 @@ using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MapControl.Caching
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namespace MapControl.Caching;
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public class SQLiteCacheOptions : IOptions<SQLiteCacheOptions>
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{
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public class SQLiteCacheOptions : IOptions<SQLiteCacheOptions>
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public SQLiteCacheOptions Value => this;
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public string Path { get; set; }
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public TimeSpan ExpirationScanFrequency { get; set; } = TimeSpan.FromHours(1);
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}
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/// <summary>
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/// IDistributedCache implementation based on System.Data.SQLite, https://system.data.sqlite.org/.
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/// </summary>
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public sealed class SQLiteCache : IDistributedCache, IDisposable
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{
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private readonly SQLiteConnection connection;
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private readonly Timer timer;
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private readonly ILogger logger;
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public SQLiteCache(string path, ILoggerFactory loggerFactory = null)
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: this(new SQLiteCacheOptions { Path = path }, loggerFactory)
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{
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public SQLiteCacheOptions Value => this;
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public string Path { get; set; }
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public TimeSpan ExpirationScanFrequency { get; set; } = TimeSpan.FromHours(1);
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}
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/// <summary>
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/// IDistributedCache implementation based on System.Data.SQLite, https://system.data.sqlite.org/.
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/// </summary>
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public sealed class SQLiteCache : IDistributedCache, IDisposable
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public SQLiteCache(IOptions<SQLiteCacheOptions> optionsAccessor, ILoggerFactory loggerFactory = null)
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: this(optionsAccessor.Value, loggerFactory)
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{
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private readonly SQLiteConnection connection;
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private readonly Timer timer;
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private readonly ILogger logger;
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}
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public SQLiteCache(string path, ILoggerFactory loggerFactory = null)
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: this(new SQLiteCacheOptions { Path = path }, loggerFactory)
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public SQLiteCache(SQLiteCacheOptions options, ILoggerFactory loggerFactory = null)
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{
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var path = options.Path;
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if (string.IsNullOrEmpty(path) || string.IsNullOrEmpty(Path.GetExtension(path)))
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{
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path = Path.Combine(path ?? "", "TileCache.sqlite");
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}
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public SQLiteCache(IOptions<SQLiteCacheOptions> optionsAccessor, ILoggerFactory loggerFactory = null)
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: this(optionsAccessor.Value, loggerFactory)
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connection = new SQLiteConnection("Data Source=" + path);
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connection.Open();
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using (var command = new SQLiteCommand("pragma journal_mode=wal", connection))
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{
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command.ExecuteNonQuery();
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}
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public SQLiteCache(SQLiteCacheOptions options, ILoggerFactory loggerFactory = null)
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using (var command = new SQLiteCommand("create table if not exists items (key text primary key, expiration integer, buffer blob)", connection))
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{
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var path = options.Path;
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command.ExecuteNonQuery();
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}
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if (string.IsNullOrEmpty(path) || string.IsNullOrEmpty(Path.GetExtension(path)))
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logger = loggerFactory?.CreateLogger<SQLiteCache>();
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logger?.LogInformation("Opened database {path}", path);
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if (options.ExpirationScanFrequency > TimeSpan.Zero)
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{
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timer = new Timer(_ => DeleteExpiredItems(), null, TimeSpan.Zero, options.ExpirationScanFrequency);
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}
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}
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public void Dispose()
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{
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timer?.Dispose();
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connection.Dispose();
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}
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public byte[] Get(string key)
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{
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byte[] value = null;
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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path = Path.Combine(path ?? "", "TileCache.sqlite");
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using (var command = GetItemCommand(key))
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{
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value = (byte[])command.ExecuteScalar();
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}
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}
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connection = new SQLiteConnection("Data Source=" + path);
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connection.Open();
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using (var command = new SQLiteCommand("pragma journal_mode=wal", connection))
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catch (Exception ex)
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{
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command.ExecuteNonQuery();
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}
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using (var command = new SQLiteCommand("create table if not exists items (key text primary key, expiration integer, buffer blob)", connection))
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{
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command.ExecuteNonQuery();
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}
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logger = loggerFactory?.CreateLogger<SQLiteCache>();
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logger?.LogInformation("Opened database {path}", path);
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if (options.ExpirationScanFrequency > TimeSpan.Zero)
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{
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timer = new Timer(_ => DeleteExpiredItems(), null, TimeSpan.Zero, options.ExpirationScanFrequency);
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logger?.LogError(ex, "Get({key})", key);
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}
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}
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public void Dispose()
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{
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timer?.Dispose();
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connection.Dispose();
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}
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return value;
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}
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public byte[] Get(string key)
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{
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byte[] value = null;
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public async Task<byte[]> GetAsync(string key, CancellationToken token = default)
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{
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byte[] value = null;
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if (!string.IsNullOrEmpty(key))
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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try
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using (var command = GetItemCommand(key))
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{
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using (var command = GetItemCommand(key))
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{
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value = (byte[])command.ExecuteScalar();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "Get({key})", key);
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value = (byte[])await command.ExecuteScalarAsync();
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}
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}
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return value;
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}
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public async Task<byte[]> GetAsync(string key, CancellationToken token = default)
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{
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byte[] value = null;
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if (!string.IsNullOrEmpty(key))
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catch (Exception ex)
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{
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try
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{
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using (var command = GetItemCommand(key))
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{
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value = (byte[])await command.ExecuteScalarAsync();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "GetAsync({key})", key);
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}
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}
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return value;
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}
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public void Set(string key, byte[] value, DistributedCacheEntryOptions options)
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{
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if (!string.IsNullOrEmpty(key) && value != null && options != null)
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{
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try
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{
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using (var command = SetItemCommand(key, value, options))
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{
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command.ExecuteNonQuery();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "Set({key})", key);
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}
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logger?.LogError(ex, "GetAsync({key})", key);
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}
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}
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public async Task SetAsync(string key, byte[] value, DistributedCacheEntryOptions options, CancellationToken token = default)
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return value;
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}
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public void Set(string key, byte[] value, DistributedCacheEntryOptions options)
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{
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if (!string.IsNullOrEmpty(key) && value != null && options != null)
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{
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if (!string.IsNullOrEmpty(key) && value != null && options != null)
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try
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{
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try
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{
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using (var command = SetItemCommand(key, value, options))
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{
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await command.ExecuteNonQueryAsync(token);
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "SetAsync({key})", key);
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}
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}
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}
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public void Refresh(string key)
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{
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}
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public Task RefreshAsync(string key, CancellationToken token = default)
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{
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return Task.CompletedTask;
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}
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public void Remove(string key)
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{
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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using (var command = DeleteItemCommand(key))
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{
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command.ExecuteNonQuery();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "Remove({key})", key);
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}
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}
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}
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public async Task RemoveAsync(string key, CancellationToken token = default)
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{
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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using (var command = DeleteItemCommand(key))
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{
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await command.ExecuteNonQueryAsync();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "RemoveAsync({key})", key);
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}
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}
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}
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public void DeleteExpiredItems()
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{
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long deletedItemsCount;
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using (var command = DeleteExpiredItemsCommand())
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{
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deletedItemsCount = (long)command.ExecuteScalar();
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}
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if (deletedItemsCount > 0)
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{
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using (var command = new SQLiteCommand("vacuum", connection))
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using (var command = SetItemCommand(key, value, options))
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{
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command.ExecuteNonQuery();
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}
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logger?.LogInformation("Deleted {count} expired items", deletedItemsCount);
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "Set({key})", key);
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}
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}
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}
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private SQLiteCommand GetItemCommand(string key)
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public async Task SetAsync(string key, byte[] value, DistributedCacheEntryOptions options, CancellationToken token = default)
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{
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if (!string.IsNullOrEmpty(key) && value != null && options != null)
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{
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var command = new SQLiteCommand("select buffer from items where key = @key and expiration > @exp", connection);
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command.Parameters.AddWithValue("@key", key);
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command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
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return command;
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}
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private SQLiteCommand SetItemCommand(string key, byte[] buffer, DistributedCacheEntryOptions options)
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{
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var expiration = options.AbsoluteExpiration ??
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DateTimeOffset.UtcNow.Add(options.AbsoluteExpirationRelativeToNow ?? options.SlidingExpiration ?? TimeSpan.FromDays(1));
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var command = new SQLiteCommand("insert or replace into items (key, expiration, buffer) values (@key, @exp, @buf)", connection);
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command.Parameters.AddWithValue("@key", key);
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command.Parameters.AddWithValue("@exp", expiration.UtcTicks);
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command.Parameters.AddWithValue("@buf", buffer);
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return command;
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}
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private SQLiteCommand DeleteItemCommand(string key)
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{
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var command = new SQLiteCommand("delete from items where key = @key", connection);
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command.Parameters.AddWithValue("@key", key);
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return command;
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}
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private SQLiteCommand DeleteExpiredItemsCommand()
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{
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var command = new SQLiteCommand("delete from items where expiration <= @exp; select changes()", connection);
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command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
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return command;
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try
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{
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using (var command = SetItemCommand(key, value, options))
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{
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await command.ExecuteNonQueryAsync(token);
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "SetAsync({key})", key);
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}
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}
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}
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public void Refresh(string key)
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{
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}
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public Task RefreshAsync(string key, CancellationToken token = default)
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{
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return Task.CompletedTask;
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}
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public void Remove(string key)
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{
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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using (var command = DeleteItemCommand(key))
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{
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command.ExecuteNonQuery();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "Remove({key})", key);
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}
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}
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}
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public async Task RemoveAsync(string key, CancellationToken token = default)
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{
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if (!string.IsNullOrEmpty(key))
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{
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try
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{
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using (var command = DeleteItemCommand(key))
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{
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await command.ExecuteNonQueryAsync();
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}
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}
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catch (Exception ex)
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{
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logger?.LogError(ex, "RemoveAsync({key})", key);
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}
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}
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}
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public void DeleteExpiredItems()
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{
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long deletedItemsCount;
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using (var command = DeleteExpiredItemsCommand())
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{
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deletedItemsCount = (long)command.ExecuteScalar();
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}
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if (deletedItemsCount > 0)
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{
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using (var command = new SQLiteCommand("vacuum", connection))
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{
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command.ExecuteNonQuery();
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}
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logger?.LogInformation("Deleted {count} expired items", deletedItemsCount);
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}
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}
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private SQLiteCommand GetItemCommand(string key)
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{
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var command = new SQLiteCommand("select buffer from items where key = @key and expiration > @exp", connection);
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command.Parameters.AddWithValue("@key", key);
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command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
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return command;
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}
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private SQLiteCommand SetItemCommand(string key, byte[] buffer, DistributedCacheEntryOptions options)
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{
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var expiration = options.AbsoluteExpiration ??
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DateTimeOffset.UtcNow.Add(options.AbsoluteExpirationRelativeToNow ?? options.SlidingExpiration ?? TimeSpan.FromDays(1));
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var command = new SQLiteCommand("insert or replace into items (key, expiration, buffer) values (@key, @exp, @buf)", connection);
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command.Parameters.AddWithValue("@key", key);
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command.Parameters.AddWithValue("@exp", expiration.UtcTicks);
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command.Parameters.AddWithValue("@buf", buffer);
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return command;
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}
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private SQLiteCommand DeleteItemCommand(string key)
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{
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var command = new SQLiteCommand("delete from items where key = @key", connection);
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command.Parameters.AddWithValue("@key", key);
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return command;
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}
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private SQLiteCommand DeleteExpiredItemsCommand()
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{
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var command = new SQLiteCommand("delete from items where expiration <= @exp; select changes()", connection);
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command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
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return command;
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}
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}
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@ -1,6 +1,7 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netstandard2.0</TargetFramework>
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<LangVersion>14.0</LangVersion>
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<RootNamespace>MapControl.Caching</RootNamespace>
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<AssemblyTitle>XAML Map Control SQLiteCache Library</AssemblyTitle>
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<GeneratePackageOnBuild>$(GeneratePackage)</GeneratePackageOnBuild>
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