private void DequeueDbOperations()
{
bool faulted = false;
int pendingOps = 0;
do
{
_state.Locked(state =>
{
string action = null;
try
{
// attempt insert (if any)
if (state.InsertQueue.Count > 0)
{
CommonItem item = state.InsertQueue.Peek();
action = $"create {item.ItemKind}: '{item.Name}' {item.Id} ({item.AppScope})";
state.ItemTable.InsertItem(item);
// insert done
state.CompletedCount++;
state.InsertQueue.Dequeue();
StatsCountersDelta.AddToHierarchy($"Inserted.{item.ItemKind}.{item.DataTypeName}");
}
else
{
// attempt delete (if any)
if (state.DeleteQueue.Count > 0)
{
Guid itemId = state.DeleteQueue.Peek();
action = $"delete {itemId}";
state.ItemTable.DeleteItem(itemId);
// delete done
state.CompletedCount++;
state.DeleteQueue.Dequeue();
StatsCountersDelta.Add("Deleted", 1);
}
}
pendingOps = state.InsertQueue.Count + state.DeleteQueue.Count;
}
catch (Exception e)
{
faulted = true;
state.ExceptionCount++;
Logger.LogDebug("Failed to {0}", action);
Logger.Log(e);
}
});
}while(pendingOps > 0 && !faulted);
}
// Core V3.4 server implementation
#region ISessCtrlV131 Members
/// <summary>
///
/// </summary>
/// <param name="header"></param>
/// <param name="clientInfo"></param>
/// <returns></returns>
public V131SessionReply BeginSessionV131(V131SessionHeader header, V131ClientInfo clientInfo)
{
// validate new client
Guid clientId = clientInfo.NodeGuid;
// - ensure configured client/server envs are the same
if (CoreHelper.ToEnvId(clientInfo.ConfigEnv) != _serverCfg.ModuleInfo.ConfigEnv)
{
// not valid
string msg =
$"Client environment ({clientInfo.ConfigEnv}) <> server environment ({_serverCfg.ModuleInfo.ConfigEnv})!";
Logger.LogWarning(msg);
return(new V131SessionReply(msg));
}
// - ensure build environment is backward compatible
if (CoreHelper.ToEnvId(clientInfo.BuildEnv) < _serverCfg.ModuleInfo.BuildEnv)
{
// not valid
string msg =
$"Client build environment ({clientInfo.BuildEnv}) < server build environment ({_serverCfg.ModuleInfo.BuildEnv})!";
Logger.LogWarning(msg);
return(new V131SessionReply(msg));
}
// - check client version
const string minimumVersion = "3.4.1723.1"; // 1.1.1501.1 March 01, 2019
const string optimalVersion = "3.4.1723.1";
if (!V131Helpers.CheckRequiredFileVersion(Logger, minimumVersion, clientInfo.CompInfo.AssmFVer))
{
// older than minimum - reject connection
string msg = $"Client version ({clientInfo.CompInfo.AssmFVer}) < minimum version ({minimumVersion})!";
Logger.LogError(msg);
Logger.LogDebug("Connection: '{0}' rejected ({1})", clientId, header.ReplyAddress);
return(new V131SessionReply(msg));
}
if (!V131Helpers.CheckRequiredFileVersion(Logger, optimalVersion, clientInfo.CompInfo.AssmFVer))
{
// older than optimal - log warning
string msg = $"Client version ({clientInfo.CompInfo.AssmFVer}) < optimal version ({optimalVersion})!";
Logger.LogWarning(msg);
}
// - ensure STG/PRD envs servers only accessed by valid clients
if (_serverCfg.ModuleInfo.ConfigEnv >= EnvId.Stg_StagingLive && (clientInfo.CompInfo.AssmPTok != _serverCfg.ModuleInfo.CorePTok))
{
string msg =
$"Client signature ({clientInfo.CompInfo.AssmPTok}) <> server signature ({_serverCfg.ModuleInfo.CorePTok})!";
Logger.LogWarning(msg);
return(new V131SessionReply(msg));
}
// - ensure automated unit tests are not running integration tests
if (_serverCfg.ModuleInfo.ConfigEnv >= EnvId.Sit_SystemTest &&
clientInfo.ApplInfo.AssmName.Equals("QTAgent32", StringComparison.OrdinalIgnoreCase))
{
string msg =
$"Unauthorised client: {clientInfo.UserInfo.UserIdentityName} {clientInfo.HostName} {clientInfo.ApplInfo.AssmName}";
Logger.LogWarning(msg);
return(new V131SessionReply(msg));
}
IConnection newConnection;
// build correct connection version
if (header.ReplyContract == typeof(ITransferV341).FullName)
{
newConnection = new ConnectionV34(
Logger, _cacheEngine, _serverCfg, clientId, header.ReplyAddress, NodeType.Client);
}
else
{
// reply contract not supported
string msg = $"ReplyContract not supported: {header.ReplyContract}";
Logger.LogWarning(msg);
return(new V131SessionReply(msg));
}
// success - grant access
IConnection connection = _connectionIndex.GetOrSet(clientId, () => newConnection);
connection.ReplyAddress = header.ReplyAddress;
_cacheEngine.UpdateConnectionState(connection.ClientId, connection.ContractName, connection.ReplyAddress);
// update who stats: domain/name/host/app
StatsCountersDelta.AddToHierarchy(
$"ConnUser.{clientInfo.UserInfo.UserIdentityName}.{clientInfo.HostName}.{clientInfo.ApplInfo.AssmName}");
// update where stats: ip/host/app
StatsCountersDelta.AddToHierarchy(
$"ConnHost.{clientInfo.HostIpV4}.{clientInfo.HostName}.{clientInfo.ApplInfo.AssmName}");
// update version stats:
StatsCountersDelta.AddToHierarchy(
$"CVersion.{clientInfo.BuildEnv}.{string.Join(".", clientInfo.CompInfo.AssmFVer.Split('.'), 0, 2).Replace('.', '_')}.{String.Join(".", clientInfo.CompInfo.AssmFVer.Split('.'), 2, 2).Replace('.', '_')}.{clientInfo.HostName}.{clientInfo.ApplInfo.AssmName}");
Logger.LogDebug("Connection: '{0}' created ({1})", clientId, header.ReplyAddress);
if (header.DebugRequest)
{
Logger.LogDebug(" Identity : {0} ({1})", clientInfo.UserInfo.UserIdentityName, clientInfo.UserInfo.UserFullName);
Logger.LogDebug(" Application: {0} V{1}/{2} ({3}/{4})", clientInfo.ApplInfo.AssmName, clientInfo.ApplInfo.AssmNVer, clientInfo.ApplInfo.AssmFVer, clientInfo.ApplInfo.AssmPTok, clientInfo.ApplInfo.AssmHash);
Logger.LogDebug(" Component : {0} V{1}/{2} ({3}/{4})", clientInfo.CompInfo.AssmName, clientInfo.CompInfo.AssmNVer, clientInfo.CompInfo.AssmFVer, clientInfo.CompInfo.AssmPTok, clientInfo.CompInfo.AssmHash);
Logger.LogDebug(" Client Env.: {0} ({1} build)", clientInfo.ConfigEnv, clientInfo.BuildEnv);
Logger.LogDebug(" Client Intf: {0}", header.ReplyContract);
Logger.LogDebug(" Other Addrs: {0} ({1},{2})", clientInfo.HostName, clientInfo.HostIpV4, String.Join(",", clientInfo.NetAddrs.ToArray()));
}
return(new V131SessionReply(clientId, null));
}
