public RedisConnectionManager(RedisConfiguration configuration, ILoggerFactory loggerFactory)
{
NotNull(configuration, nameof(configuration));
NotNull(loggerFactory, nameof(loggerFactory));
this.connectionString = GetConnectionString(configuration);
this.configuration = configuration;
this.logger = loggerFactory.CreateLogger(this);
}
public static string GetConnectionString(RedisConfiguration configuration)
{
string connectionString = configuration.ConnectionString;
if (string.IsNullOrWhiteSpace(configuration.ConnectionString))
{
var options = CreateConfigurationOptions(configuration);
connectionString = options.ToString();
}
return connectionString;
}
/// <summary>
/// Adds the configuration.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <exception cref="System.ArgumentNullException">If configuration is null.</exception>
public static void AddConfiguration(RedisConfiguration configuration)
{
lock (configLock)
{
NotNull(configuration, nameof(configuration));
if (!Configurations.ContainsKey(configuration.Key))
{
Configurations.Add(configuration.Key, configuration);
}
}
}
/// <summary>
/// Adds the configuration.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <exception cref="System.ArgumentNullException">If configuration is null.</exception>
public static void AddConfiguration(RedisConfiguration configuration)
{
lock (_configLock)
{
NotNull(configuration, nameof(configuration));
NotNullOrWhiteSpace(configuration.Key, nameof(configuration.Key));
if (!Configurations.ContainsKey(configuration.Key))
{
Configurations.Add(configuration.Key, configuration);
}
}
}
public RedisCacheHandle(CacheManagerConfiguration managerConfiguration, CacheHandleConfiguration configuration, ILoggerFactory loggerFactory, ICacheSerializer serializer)
: base(managerConfiguration, configuration)
{
NotNull(loggerFactory, nameof(loggerFactory));
NotNull(managerConfiguration, nameof(managerConfiguration));
EnsureNotNull(serializer, "A serializer is required for the redis cache handle");
this.managerConfiguration = managerConfiguration;
this.Logger = loggerFactory.CreateLogger(this);
this.valueConverter = new RedisValueConverter(serializer);
this.redisConfiguration = RedisConfigurations.GetConfiguration(configuration.Key);
this.connection = new RedisConnectionManager(this.redisConfiguration, loggerFactory);
}
/// <summary>
/// Adds the configuration.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <exception cref="System.ArgumentNullException">If configuration is null.</exception>
public static void AddConfiguration(RedisConfiguration configuration)
{
lock (configLock)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
if (!Configurations.ContainsKey(configuration.Key))
{
Configurations.Add(configuration.Key, configuration);
}
}
}
/// <summary>
/// Adds the configuration.
/// </summary>
/// <param name="configuration">The configuration.</param>
/// <exception cref="System.ArgumentNullException">If configuration is null.</exception>
public static void AddConfiguration(RedisConfiguration configuration)
{
lock (configLock)
{
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
if (!Configurations.ContainsKey(configuration.Key))
{
Configurations.Add(configuration.Key, configuration);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="RedisCacheHandle{TCacheValue}"/> class.
/// </summary>
/// <param name="managerConfiguration">The manager configuration.</param>
/// <param name="configuration">The cache handle configuration.</param>
/// <param name="loggerFactory">The logger factory.</param>
/// <param name="serializer">The serializer.</param>
public RedisCacheHandle(ICacheManagerConfiguration managerConfiguration, CacheHandleConfiguration configuration, ILoggerFactory loggerFactory, ICacheSerializer serializer)
: base(managerConfiguration, configuration)
{
NotNull(loggerFactory, nameof(loggerFactory));
NotNull(managerConfiguration, nameof(managerConfiguration));
NotNull(configuration, nameof(configuration));
EnsureNotNull(serializer, "A serializer is required for the redis cache handle");
Logger = loggerFactory.CreateLogger(this);
_managerConfiguration = managerConfiguration;
_valueConverter = new RedisValueConverter(serializer);
_redisConfiguration = RedisConfigurations.GetConfiguration(configuration.Key);
_connection = new RedisConnectionManager(_redisConfiguration, loggerFactory);
_isLuaAllowed = _connection.Features.Scripting;
// disable preloading right away if twemproxy mode, as this is not supported.
_canPreloadScripts = _redisConfiguration.TwemproxyEnabled ? false : true;
if (_redisConfiguration.KeyspaceNotificationsEnabled)
{
// notify-keyspace-events needs to be set to "Exe" at least! Otherwise we will not receive any events.
// this must be configured per server and should probably not be done automagically as this needs admin rights!
// Let's try to check at least if those settings are configured (the check also works only if useAdmin is set to true though).
try
{
var configurations = _connection.GetConfiguration("notify-keyspace-events");
foreach (var cfg in configurations)
{
if (!cfg.Value.Contains("E"))
{
Logger.LogWarn("Server {0} is missing configuration value 'E' in notify-keyspace-events to enable keyevents.", cfg.Key);
}
if (!(cfg.Value.Contains("A") ||
(cfg.Value.Contains("x") && cfg.Value.Contains("e"))))
{
Logger.LogWarn("Server {0} is missing configuration value 'A' or 'x' and 'e' in notify-keyspace-events to enable keyevents for expired and evicted keys.", cfg.Key);
}
}
}
catch
{
Logger.LogDebug("Could not read configuration from redis to validate notify-keyspace-events. Most likely useAdmin is not set to true.");
}
SubscribeKeyspaceNotifications();
}
}
/// <summary>
/// Gets the configuration.
/// </summary>
/// <param name="configurationName">The identifier.</param>
/// <returns>The <c>RedisConfiguration</c>.</returns>
/// <exception cref="System.ArgumentNullException">If id is null.</exception>
/// <exception cref="System.InvalidOperationException">
/// If no configuration was added for the id.
/// </exception>
public static RedisConfiguration GetConfiguration(string configurationName)
{
NotNullOrWhiteSpace(configurationName, nameof(configurationName));
if (!Configurations.ContainsKey(configurationName))
{
// check connection strings if there is one matching the name
var connectionStringHolder = ConfigurationManager.ConnectionStrings[configurationName];
if (connectionStringHolder == null || string.IsNullOrWhiteSpace(connectionStringHolder.ConnectionString))
{
throw new InvalidOperationException("No configuration added for configuration name " + configurationName);
}
var configuration = new RedisConfiguration(configurationName, connectionStringHolder.ConnectionString);
Configurations.Add(configurationName, configuration);
}
return(Configurations[configurationName]);
}
private static StackRedis.ConfigurationOptions CreateConfigurationOptions(RedisConfiguration configuration)
{
var configurationOptions = new StackRedis.ConfigurationOptions()
{
AllowAdmin = configuration.AllowAdmin,
ConnectTimeout = configuration.ConnectionTimeout,
Password = configuration.Password,
Ssl = configuration.IsSsl,
SslHost = configuration.SslHost,
ConnectRetry = 10,
AbortOnConnectFail = false
};
foreach (var endpoint in configuration.Endpoints)
{
configurationOptions.EndPoints.Add(endpoint.Host, endpoint.Port);
}
return configurationOptions;
}
private static StackRedis.ConfigurationOptions CreateConfigurationOptions(RedisConfiguration configuration)
{
var configurationOptions = new StackRedis.ConfigurationOptions()
{
AllowAdmin = configuration.AllowAdmin,
ConnectTimeout = configuration.ConnectionTimeout,
Password = configuration.Password,
Ssl = configuration.IsSsl,
SslHost = configuration.SslHost,
ConnectRetry = 10,
AbortOnConnectFail = false
};
foreach (var endpoint in configuration.Endpoints)
{
configurationOptions.EndPoints.Add(endpoint.Host, endpoint.Port);
}
return(configurationOptions);
}
public static StackRedis.ConnectionMultiplexer Connect(RedisConfiguration configuration)
{
string connectionString = configuration.ConnectionString;
if (string.IsNullOrWhiteSpace(configuration.ConnectionString))
{
var options = CreateConfigurationOptions(configuration);
connectionString = options.ToString();
}
StackRedis.ConnectionMultiplexer connection;
lock (connectLock)
{
if (!connections.TryGetValue(connectionString, out connection))
{
var builder = new StringBuilder();
using (var log = new StringWriter(builder, CultureInfo.InvariantCulture))
{
connection = StackRedis.ConnectionMultiplexer.Connect(connectionString, log);
}
connection.ConnectionFailed += (sender, args) =>
{
connections.Remove(connectionString);
};
if (!connection.IsConnected)
{
throw new InvalidOperationException("Connection failed.\n" + builder.ToString());
}
connection.PreserveAsyncOrder = false;
connections.Add(connectionString, connection);
}
}
return connection;
}
public static StackRedis.ConnectionMultiplexer Connect(RedisConfiguration configuration)
{
string connectionString = configuration.ConnectionString;
if (string.IsNullOrWhiteSpace(configuration.ConnectionString))
{
var options = CreateConfigurationOptions(configuration);
connectionString = options.ToString();
}
StackRedis.ConnectionMultiplexer connection;
lock (connectLock)
{
if (!connections.TryGetValue(connectionString, out connection))
{
var builder = new StringBuilder();
using (var log = new StringWriter(builder, CultureInfo.InvariantCulture))
{
connection = StackRedis.ConnectionMultiplexer.Connect(connectionString, log);
}
connection.ConnectionFailed += (sender, args) =>
{
connections.Remove(connectionString);
};
if (!connection.IsConnected)
{
throw new InvalidOperationException("Connection failed.\n" + builder.ToString());
}
connection.PreserveAsyncOrder = false;
connections.Add(connectionString, connection);
}
}
return(connection);
}
/// <summary>
/// Gets the configuration.
/// </summary>
/// <param name="configurationName">The identifier.</param>
/// <returns>The <c>RedisConfiguration</c>.</returns>
/// <exception cref="System.ArgumentNullException">If id is null.</exception>
/// <exception cref="System.InvalidOperationException">
/// If no configuration was added for the id.
/// </exception>
public static RedisConfiguration GetConfiguration(string configurationName)
{
NotNullOrWhiteSpace(configurationName, nameof(configurationName));
if (!Configurations.ContainsKey(configurationName))
{
#if NETSTANDARD
throw new InvalidOperationException("No configuration added for configuration name " + configurationName);
#else
// check connection strings if there is one matching the name
var connectionStringHolder = ConfigurationManager.ConnectionStrings[configurationName];
if (connectionStringHolder == null || string.IsNullOrWhiteSpace(connectionStringHolder.ConnectionString))
{
throw new InvalidOperationException("No configuration added for configuration name " + configurationName);
}
// defaulting to database 0, no way to set it via connection strings atm.
var configuration = new RedisConfiguration(configurationName, connectionStringHolder.ConnectionString, 0, false);
AddConfiguration(configuration);
#endif
}
return(Configurations[configurationName]);
}
public static void DisposeConnection(RedisConfiguration configuration)
{
NotNull(configuration, nameof(configuration));
DisposeConnection(GetConnectionString(configuration));
}
public static StackRedis.ConnectionMultiplexer Connect(RedisConfiguration configuration)
{
NotNull(configuration, nameof(configuration));
return Connect(GetConnectionString(configuration));
}
/// <summary>
/// Gets the configuration.
/// </summary>
/// <param name="configurationName">The identifier.</param>
/// <returns>The <c>RedisConfiguration</c>.</returns>
/// <exception cref="System.ArgumentNullException">If id is null.</exception>
/// <exception cref="System.InvalidOperationException">
/// If no configuration was added for the id.
/// </exception>
public static RedisConfiguration GetConfiguration(string configurationName)
{
NotNullOrWhiteSpace(configurationName, nameof(configurationName));
if (!Configurations.ContainsKey(configurationName))
{
// check connection strings if there is one matching the name
var connectionStringHolder = ConfigurationManager.ConnectionStrings[configurationName];
if (connectionStringHolder == null || string.IsNullOrWhiteSpace(connectionStringHolder.ConnectionString))
{
throw new InvalidOperationException("No configuration added for configuration name " + configurationName);
}
var configuration = new RedisConfiguration(configurationName, connectionStringHolder.ConnectionString);
Configurations.Add(configurationName, configuration);
}
return Configurations[configurationName];
}
public static void DisposeConnection(RedisConfiguration configuration)
{
NotNull(configuration, nameof(configuration));
DisposeConnection(GetConnectionString(configuration));
}
public static StackRedis.ConnectionMultiplexer Connect(RedisConfiguration configuration)
{
NotNull(configuration, nameof(configuration));
return(Connect(GetConnectionString(configuration)));
}
