/// <summary>
/// The node used to discover endpoints in an ElastiCache cluster
/// </summary>
/// <param name="config">The config of the client to access the SocketPool</param>
/// <param name="hostname">The host name of the cluster with .cfg. in name</param>
/// <param name="port">The port of the cluster</param>
/// <param name="tries">The number of tries for requesting config info</param>
/// <param name="delay">The time, in miliseconds, to wait between tries</param>
internal DiscoveryNode(ElastiCacheClusterConfig config, string hostname, int port, int tries, int delay)
{
#region Param Checks
if (config == null)
{
throw new ArgumentNullException("config");
}
if (string.IsNullOrEmpty(hostname))
{
throw new ArgumentNullException("hostname");
}
if (port <= 0)
{
throw new ArgumentException("Port cannot be 0 or less");
}
if (tries < 1)
{
throw new ArgumentException("Must atleast try once");
}
if (delay < 0)
{
throw new ArgumentException("The delay can't be negative");
}
if (hostname.IndexOf(".cfg", StringComparison.OrdinalIgnoreCase) < 0)
{
throw new ArgumentException("The hostname is not able to use Auto Discovery");
}
#endregion
#region Setting Members
this.hostname = hostname;
this.port = port;
this.config = config;
this.ClusterVersion = 0;
this.tries = tries;
this.delay = delay;
this.clusterLock = new Object();
this.endpointLock = new Object();
this.nodesLock = new Object();
#endregion
this.ResolveEndPoint();
}
/// <summary>
/// The node used to discover endpoints in an ElastiCache cluster
/// </summary>
/// <param name="config">The config of the client to access the SocketPool</param>
/// <param name="hostname">The host name of the cluster with .cfg. in name</param>
/// <param name="port">The port of the cluster</param>
/// <param name="tries">The number of tries for requesting config info</param>
/// <param name="delay">The time, in miliseconds, to wait between tries</param>
internal DiscoveryNode(ElastiCacheClusterConfig config, string hostname, int port,
int tries = DefaultTryCount, int delay = DefaultTryDelay)
{
#region Param Checks
if (string.IsNullOrEmpty(hostname))
{
throw new ArgumentNullException(nameof(hostname));
}
if (port <= 0)
{
throw new ArgumentException("Port cannot be 0 or less");
}
if (tries < 1)
{
throw new ArgumentException("Must atleast try once");
}
if (delay < 0)
{
throw new ArgumentException("The delay can't be negative");
}
if (hostname.IndexOf(".cfg", StringComparison.OrdinalIgnoreCase) < 0)
{
throw new ArgumentException("The hostname is not able to use Auto Discovery");
}
#endregion
#region Setting Members
_hostname = hostname;
_port = port;
_config = config ?? throw new ArgumentNullException(nameof(config));
ClusterVersion = 0;
_tries = tries;
_delay = delay;
_log = config.LoggerFactory.CreateLogger <DiscoveryNode>();
_clusterLock = new object();
_endpointLock = new object();
_nodesLock = new object();
#endregion
ResolveEndPoint();
}
/// <summary>
/// Creates a MemcachedClient using the Client config provided
/// </summary>
/// <param name="config">The config to instantiate the client with</param>
/// <returns>A new MemcachedClient configured for auto discovery</returns>
public static MemcachedClient CreateClient(ElastiCacheClusterConfig config)
{
return(new MemcachedClient(config));
}
/// <summary>
/// The node used to discover endpoints in an ElastiCache cluster
/// </summary>
/// <param name="config">The config of the client to access the SocketPool</param>
/// <param name="hostname">The host name of the cluster with .cfg. in name</param>
/// <param name="port">The port of the cluster</param>
internal DiscoveryNode(ElastiCacheClusterConfig config, string hostname, int port)
: this(config, hostname, port, DEFAULT_TRY_COUNT, DEFAULT_TRY_DELAY)
{
}
/// <summary>
/// Creates a poller for Auto Discovery with the defined itnerval, delay, tries, and try delay for polling
/// </summary>
/// <param name="client">The memcached client to update servers for</param>
/// <param name="intervalDelay">The amount of time between polling operations in miliseconds</param>
public ConfigurationPoller(ElastiCacheClusterConfig config, int intervalDelay)
{
this.intervalDelay = intervalDelay < 0 ? DEFAULT_INTERVAL_DELAY : intervalDelay;
this.config = config;
}
/// <summary>
/// Creates a poller for Auto Discovery with the default intervals
/// </summary>
/// <param name="client">The memcached client to update servers for</param>
public ConfigurationPoller(ElastiCacheClusterConfig config)
: this(config, DEFAULT_INTERVAL_DELAY)
{
}
/// <summary>
/// Creates a poller for Auto Discovery with the default intervals
/// </summary>
/// <param name="config">The cluster config to update servers for</param>
public ConfigurationPoller(ElastiCacheClusterConfig config)
: this(config, DefaultIntervalDelay)
{
}
/// <summary>
/// Creates a MemcachedClient using the Client config provided
/// </summary>
/// <param name="config">The config to instantiate the client with</param>
/// <returns>A new MemcachedClient configured for auto discovery</returns>
#if CORE_CLR
public static MemcachedClient CreateClient(ElastiCacheClusterConfig config, ILogger <MemcachedClient> logger = null)
{
return(new MemcachedClient(logger ?? NullLogger <MemcachedClient> .Instance, config));
}
/// <summary>
/// Creates a MemcachedClient using the Client config provided
/// </summary>
/// <param name="loggerFactory">The factory to create the each class'es logger</param>
/// <param name="config">The config to instantiate the client with</param>
/// <returns>A new MemcachedClient configured for auto discovery</returns>
public static MemcachedClient CreateClient(ILoggerFactory loggerFactory, ElastiCacheClusterConfig config)
{
return(new MemcachedClient(loggerFactory, config));
}
