/// <summary>
/// Initializes a new instance of the <see cref="ClientSocket" /> class.
/// </summary>
/// <param name="clientConfiguration">The client configuration.</param>
/// <param name="endPoint">The end point to connect to.</param>
/// <param name="host">The host name (required for SSL).</param>
/// <param name="version">Protocol version.</param>
/// <param name="topVerCallback">Topology version update callback.</param>
/// <param name="marshaller">Marshaller.</param>
public ClientSocket(IgniteClientConfiguration clientConfiguration, EndPoint endPoint, string host,
ClientProtocolVersion?version, Action <AffinityTopologyVersion> topVerCallback,
Marshaller marshaller)
{
Debug.Assert(clientConfiguration != null);
Debug.Assert(endPoint != null);
Debug.Assert(!string.IsNullOrWhiteSpace(host));
Debug.Assert(topVerCallback != null);
Debug.Assert(marshaller != null);
_topVerCallback = topVerCallback;
_marsh = marshaller;
_timeout = clientConfiguration.SocketTimeout;
_logger = (clientConfiguration.Logger ?? NoopLogger.Instance).GetLogger(GetType());
_socket = Connect(clientConfiguration, endPoint, _logger);
_stream = GetSocketStream(_socket, clientConfiguration, host);
ServerVersion = version ?? CurrentProtocolVersion;
Validate(clientConfiguration);
_features = Handshake(clientConfiguration, ServerVersion);
// Check periodically if any request has timed out.
if (_timeout > TimeSpan.Zero)
{
// Minimum Socket timeout is 500ms.
_timeoutCheckTimer = new Timer(CheckTimeouts, null, _timeout, TimeSpan.FromMilliseconds(500));
}
// Continuously and asynchronously wait for data from server.
// TaskCreationOptions.LongRunning actually means a new thread.
TaskRunner.Run(WaitForMessages, TaskCreationOptions.LongRunning);
}
/// <summary>
/// Initializes a new instance of <see cref="ClientContextBase"/> class.
/// </summary>
/// <param name="stream">Stream.</param>
/// <param name="marshaller">Marshaller.</param>
/// <param name="features">Features supported by this request.</param>
protected ClientContextBase(IBinaryStream stream, Marshaller marshaller, ClientFeatures features)
{
Debug.Assert(stream != null);
Debug.Assert(marshaller != null);
_stream = stream;
_marshaller = marshaller;
_features = features;
}
/// <summary>
/// Performs feature checks when a new default connection is established.
/// </summary>
private void OnNewDefaultConnection()
{
if (_config.EnablePartitionAwareness && !_socket.Features.HasOp(ClientOp.CachePartitions))
{
_config.EnablePartitionAwareness = false;
_logger.Warn("Partition awareness has been disabled: server protocol version {0} " +
"is lower than required {1}",
_socket.ServerVersion,
ClientFeatures.GetMinVersion(ClientOp.CachePartitions)
);
}
if (!_socket.Features.HasFeature(ClientBitmaskFeature.ClusterGroupGetNodesEndpoints))
{
_enableDiscovery = false;
_logger.Warn("Automatic server node discovery is not supported by the server");
}
}
/// <summary>
/// Performs initial checks when the first connection to the cluster has been established.
/// </summary>
private void OnFirstConnect()
{
if (_config.EnablePartitionAwareness && !_socket.Features.HasOp(ClientOp.CachePartitions))
{
_config.EnablePartitionAwareness = false;
_logger.Warn("Partition awareness has been disabled: server protocol version {0} " +
"is lower than required {1}",
_socket.ServerVersion,
ClientFeatures.GetMinVersion(ClientOp.CachePartitions)
);
}
if (!_socket.Features.HasFeature(ClientBitmaskFeature.ClusterGroupGetNodesEndpoints))
{
_enableDiscovery = false;
_logger.Warn("Automatic server node discovery is not supported by the server");
}
if (_socket.Features.HasFeature(ClientBitmaskFeature.BinaryConfiguration))
{
var serverBinaryCfg = _socket.DoOutInOp(
ClientOp.BinaryConfigurationGet,
ctx => { },
ctx => new BinaryConfigurationClientInternal(ctx.Reader.Stream));
_logger.Debug("Server binary configuration retrieved: " + serverBinaryCfg);
if (serverBinaryCfg.CompactFooter && !_marsh.CompactFooter)
{
// Changing from full to compact is not safe: some clients do not support compact footers.
// Log information, but don't change the configuration.
_logger.Info("BinaryConfiguration.CompactFooter is true on the server, but false on the client." +
"Consider enabling this setting to reduce cache entry size.");
}
if (!serverBinaryCfg.CompactFooter && _marsh.CompactFooter)
{
// Changing from compact to full footer is safe, do it automatically.
_marsh.CompactFooter = false;
if (_config.BinaryConfiguration == null)
{
_config.BinaryConfiguration = new BinaryConfiguration();
}
_config.BinaryConfiguration.CompactFooter = false;
_logger.Info("BinaryConfiguration.CompactFooter set to false on client " +
"according to server configuration.");
}
var localNameMapperMode = GetLocalNameMapperMode();
if (localNameMapperMode != serverBinaryCfg.NameMapperMode)
{
_logger.Warn("Binary name mapper mismatch: local={0}, server={1}",
localNameMapperMode, serverBinaryCfg.NameMapperMode);
}
}
}
/// <summary>
/// Initializes a new instance of <see cref="ClientRequestContext"/> class.
/// </summary>
/// <param name="stream">Stream.</param>
/// <param name="marshaller">Marshaller.</param>
/// <param name="features">Features supported by this request.</param>
public ClientRequestContext(IBinaryStream stream, Marshaller marshaller, ClientFeatures features)
: base(stream, marshaller, features)
{
// No-op.
}
