/// <summary>
/// Adds a record to the session database table
/// </summary>
/// <param name="daMgr">DataAccessMgr object</param>
/// <param name="userId">Unique user identifier</param>
/// <param name="userCode">Unique numeric user identifier</param>
/// <param name="userEnv">MetaData about the user's environment</param>
/// <returns>A unique session code</returns>
static Int64 AddSession(DataAccessMgr daMgr, string userId, Int32 userCode, UserEnvironmentStructure userEnv)
{
Int64 sessionCode = daMgr.GetNextSequenceNumber(Constants.SessionCode);
DbTableDmlMgr dmlInsert = daMgr.DbCatalogGetTableDmlMgr(DataAccess.Constants.SCHEMA_CORE
, Constants.UserSessions);
dmlInsert.AddColumn(Constants.SessionCode, daMgr.BuildParamName(Constants.SessionCode));
dmlInsert.AddColumn(Constants.UserCode, daMgr.BuildParamName(Constants.UserCode));
dmlInsert.AddColumn(Constants.UserId, daMgr.BuildParamName(Constants.UserId));
dmlInsert.AddColumn(Constants.AppCode, daMgr.BuildParamName(Constants.AppCode));
dmlInsert.AddColumn(Constants.AppId, daMgr.BuildParamName(Constants.AppId));
dmlInsert.AddColumn(Constants.AppMachine, daMgr.BuildParamName(Constants.AppMachine));
dmlInsert.AddColumn(Constants.AppVersion, daMgr.BuildParamName(Constants.AppVersion));
dmlInsert.AddColumn(Constants.RemoteAddress, daMgr.BuildParamName(Constants.RemoteAddress));
DbCommand cmdInsert = daMgr.BuildInsertDbCommand(dmlInsert);
cmdInsert.Parameters[daMgr.BuildParamName(Constants.SessionCode)].Value = sessionCode;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.UserId)].Value = userId;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.UserCode)].Value = userCode;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.AppId)].Value = userEnv.AppId;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.AppCode)].Value = userEnv.AppCode;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.AppVersion)].Value = userEnv.AppVersion;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.RemoteAddress)].Value = userEnv.RemoteAddress;
cmdInsert.Parameters[daMgr.BuildParamName(Constants.AppMachine)].Value = Environment.MachineName;
DbTableDmlMgr dmlUpdate = daMgr.DbCatalogGetTableDmlMgr(DataAccess.Constants.SCHEMA_CORE
, Constants.UserMaster);
dmlUpdate.AddColumn(Constants.FailedSignonAttempts
, daMgr.BuildParamName(Constants.FailedSignonAttempts));
dmlUpdate.AddColumn(Constants.LastSignonDateTime
, EnumDateTimeLocale.Default);
dmlUpdate.SetWhereCondition((j) => j.Column(Constants.UserId)
== j.Parameter(dmlUpdate.MainTable.SchemaName
, dmlUpdate.MainTable.TableName
, Constants.UserId
, daMgr.BuildParamName(Constants.UserId)));
DbCommand cmdUpdate = daMgr.BuildUpdateDbCommand(dmlUpdate);
cmdUpdate.Parameters[daMgr.BuildParamName(Constants.UserId)].Value
= userId;
cmdUpdate.Parameters[daMgr.BuildParamName(Constants.FailedSignonAttempts)].Value
= 0;
DbCommandMgr cmdMgr = new DbCommandMgr(daMgr);
cmdMgr.AddDbCommand(cmdInsert);
cmdMgr.AddDbCommand(cmdUpdate);
cmdMgr.ExecuteNonQuery();
return(sessionCode);
}
/// <summary>
/// Builds the DbCommand to Change the value of the edited columns found in the given dictionary.
/// </summary>
/// <param name="daMgr">DataAccessMgr object</param>
/// <param name="taskQueueItem">The data row containing the values of the parameters</param>
/// <param name="editedColumns">The columns that need to be updated</param>
/// <param name="userCode">The userCode that updated the data</param>
/// <returns>DbCommand Object with DbNull Parameter values</returns>
public static DbCommand GetDependencyDmlCmd(DataAccessMgr daMgr
, DataRow taskQueueItem
, Dictionary <string, object> editedColumns
, Int32?userCode = null)
{
DbCommand dbCmd = null;
DbTableDmlMgr dmlMgr = daMgr.DbCatalogGetTableDmlMgr(DataAccess.Constants.SCHEMA_CORE
, TaskProcessing.Constants.TaskDependencies);
foreach (string column in editedColumns.Keys)
{
dmlMgr.AddColumn(column);
}
if (taskQueueItem == null) // add new item
{
dmlMgr.AddColumn(TaskProcessing.Constants.LastModifiedUserCode);
dmlMgr.AddColumn(TaskProcessing.Constants.LastModifiedDateTime);
dbCmd = daMgr.BuildInsertDbCommand(dmlMgr);
}
else
{
dbCmd = daMgr.BuildChangeDbCommand(dmlMgr, TaskProcessing.Constants.LastModifiedUserCode
, TaskProcessing.Constants.LastModifiedDateTime);
}
foreach (string column in editedColumns.Keys)
{
dbCmd.Parameters[daMgr.BuildParamName(column)].Value
= editedColumns[column];
}
if (taskQueueItem == null) // add new
{
if (userCode.HasValue)
{
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedUserCode)].Value
= userCode.Value;
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedDateTime)].Value
= daMgr.DbSynchTime;
}
else
{
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedUserCode)].Value
= DBNull.Value;
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedDateTime)].Value
= DBNull.Value;
}
}
else // change; where condition params
{
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedUserCode)].Value
= taskQueueItem[TaskProcessing.Constants.LastModifiedUserCode];
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedDateTime)].Value
= taskQueueItem[TaskProcessing.Constants.LastModifiedDateTime];
// set portion of the update
if (userCode.HasValue)
{
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedUserCode, true)].Value
= userCode.Value;
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedDateTime, true)].Value
= daMgr.DbSynchTime;
}
else
{
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedUserCode, true)].Value
= DBNull.Value;
dbCmd.Parameters[daMgr.BuildParamName(TaskProcessing.Constants.LastModifiedDateTime, true)].Value
= DBNull.Value;
}
}
return(dbCmd);
}
/// <summary>
/// Method to begin session for the application.
/// <para>Once started, the application session record will also be updated by the heartbeat process.</para>
/// <para>The frequency of the heartbeat process is controlled by the SignonControl.StatusSeconds column.</para>
/// <para>If the application is a TaskProcessingEngine, then there can be only a single active instance
/// for a given AppId. If there is a violation, a string message will be returned. The caller, can recall
/// this method with the overWrite parameter = true. In that case the existing record will be removed.</para>
/// </summary>
/// <param name="configSettings">A string of configuration settings used by the application</param>
/// <param name="statusMsg">A startup status message by the application</param>
/// <param name="overwrite">Indicates whether or not to overwrite an existing record for the AppId</param>
/// <param name="tpeEndpointAddress">Indentifies the WCF host endpoint address of when app is a TPE</param>
/// <returns>Null for success; error message otherwise.</returns>
public string Start(string configSettings, string statusMsg, bool overwrite, string tpeEndpointAddress = null)
{
DbTableDmlMgr dmlSelectMgr = _daMgr.DbCatalogGetTableDmlMgr(DataAccess.Constants.SCHEMA_CORE
, Constants.AppSessions);
DbCommand dbCmdSelect = _daMgr.BuildSelectDbCommand(dmlSelectMgr, null);
DbTableDmlMgr dmlInsertMgr = _daMgr.DbCatalogGetTableDmlMgr(DataAccess.Constants.SCHEMA_CORE
, Constants.AppSessions);
dmlInsertMgr.AddColumn(Constants.AppId, _daMgr.BuildParamName(Constants.AppId));
dmlInsertMgr.AddColumn(Constants.AppCode, _daMgr.BuildParamName(Constants.AppCode));
dmlInsertMgr.AddColumn(Constants.AppVersion, _daMgr.BuildParamName(Constants.AppVersion));
dmlInsertMgr.AddColumn(Constants.AppName, _daMgr.BuildParamName(Constants.AppName));
dmlInsertMgr.AddColumn(Constants.MultipleSessionCode, _daMgr.BuildParamName(Constants.MultipleSessionCode));
dmlInsertMgr.AddColumn(Constants.ProcessId, _daMgr.BuildParamName(Constants.ProcessId));
dmlInsertMgr.AddColumn(Constants.StatusMessage, _daMgr.BuildParamName(Constants.StatusMessage));
dmlInsertMgr.AddColumn(Constants.ConfigSettings, _daMgr.BuildParamName(Constants.ConfigSettings));
dmlInsertMgr.AddColumn(Constants.EnvironmentSettings, _daMgr.BuildParamName(Constants.EnvironmentSettings));
dmlInsertMgr.AddColumn(Constants.MachineName, _daMgr.BuildParamName(Constants.MachineName));
dmlInsertMgr.AddColumn(Constants.TpeEndpointAddress, _daMgr.BuildParamName(Constants.TpeEndpointAddress));
DbCommand dbCmdInsert = _daMgr.BuildInsertDbCommand(dmlInsertMgr);
DbCommandMgr dbCmdMgr = new DbCommandMgr(_daMgr);
StringBuilder sb = new StringBuilder();
sb.AppendFormat("AllowMultipleSessions: {0} {1}", _allowMultipleSessions, Environment.NewLine);
sb.AppendFormat("OS Version: {0} {1}", Environment.OSVersion, Environment.NewLine);
sb.AppendFormat("ProcessName: {0} {1}", Process.GetCurrentProcess().ProcessName, Environment.NewLine);
sb.AppendFormat("CLR Version: {0} {1}", Environment.Version, Environment.NewLine);
sb.AppendFormat("DbProvider Version: {0} {1}", _daMgr.DbProviderVersion, Environment.NewLine);
sb.AppendFormat("DbServer Version: {0} {1}", _daMgr.DbServerVersion, Environment.NewLine);
sb.AppendFormat("Is x64bit OS: {0} {1}", Environment.Is64BitOperatingSystem, Environment.NewLine);
sb.AppendFormat("Is x64bit process: {0} {1}", Environment.Is64BitProcess, Environment.NewLine);
sb.AppendFormat("Processor Count: {0} {1}", Environment.ProcessorCount, Environment.NewLine);
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.AppId)].Value = _appId;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.AppCode)].Value = _appCode;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.MachineName)].Value = Environment.MachineName;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.ProcessId)].Value = System.Diagnostics.Process.GetCurrentProcess().Id;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.AppVersion)].Value = _appVersion;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.AppName)].Value = _appName;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.MultipleSessionCode)].Value = _appSessionCode;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.ConfigSettings)].Value = configSettings;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.EnvironmentSettings)].Value = sb.ToString();
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.StatusMessage)].Value = statusMsg;
dbCmdInsert.Parameters[_daMgr.BuildParamName(Constants.TpeEndpointAddress)].Value = tpeEndpointAddress;
if (overwrite)
{
dbCmdMgr.TransactionBeginBlock();
DbCommand dbCmdDelete = GetDeleteSessionRecordCmd();
dbCmdDelete.Parameters[_daMgr.BuildParamName(Constants.AppCode)].Value = _appCode;
dbCmdDelete.Parameters[_daMgr.BuildParamName(Constants.MultipleSessionCode)].Value = _appSessionCode;
dbCmdMgr.AddDbCommand(dbCmdDelete);
dbCmdMgr.AddDbCommand(dbCmdInsert);
dbCmdMgr.TransactionEndBlock();
dbCmdMgr.AddDbCommand(dbCmdSelect);
}
else
{
dbCmdMgr.AddDbCommand(dbCmdInsert);
dbCmdMgr.AddDbCommand(dbCmdSelect);
}
try
{
_appSessions = dbCmdMgr.ExecuteDataTable();
_heartbeatTimer = new System.Threading.Timer(new TimerCallback(Heartbeat), null
, _signonControl.SignonControlData.StatusSeconds * 1000
, _signonControl.SignonControlData.StatusSeconds * 1000);
if (_daMgr.loggingMgr != null)
{
_daMgr.loggingMgr.WriteToLog(string.Format("AppId {0}; AppName: {1}; Version: {2}; TaskProcessingEngine: {3}; Session Started."
, _appId
, _appName
, _appVersion
, IsTaskProcessingEngine)
, EventLogEntryType.Information
, enumEventPriority.Critical);
}
}
catch (ExceptionEvent e)
{
if (_daMgr.loggingMgr != null)
{
_daMgr.loggingMgr.WriteToLog(e);
}
if (e.ExceptionEventCode == enumExceptionEventCodes.DbTablePrimaryKeyViolation)
{
return("AppCode record already exists in AppSession table. If you wish to cleanup record and continue,"
+ " please resubmit.");
}
throw;
}
return(null);
}
