/// <summary>
/// Serialize session state into a collection of options
/// </summary>
/// <returns></returns>
public virtual IList <TDSSessionStateOption> Deflate()
{
// Prepare options list
IList <TDSSessionStateOption> options = new List <TDSSessionStateOption>();
// Create user options option
TDSSessionStateUserOptionsOption userOptionsOption = new TDSSessionStateUserOptionsOption();
// Transfer properties from the session onto the session state
userOptionsOption.AnsiWarnings = AnsiWarnings;
userOptionsOption.AnsiNulls = AnsiNulls;
userOptionsOption.CursorCloseOnCommit = CursorCloseOnCommit;
userOptionsOption.QuotedIdentifier = QuotedIdentifier;
userOptionsOption.ConcatNullYieldsNull = ConcatNullYieldsNull;
userOptionsOption.AnsiNullDefaultOn = AnsiNullDefaultOn;
userOptionsOption.AnsiPadding = AnsiPadding;
userOptionsOption.ArithAbort = ArithAbort;
userOptionsOption.TransactionAbortOnError = TransactionAbortOnError;
userOptionsOption.NoCount = NoCount;
userOptionsOption.ArithIgnore = ArithIgnore;
userOptionsOption.ImplicitTransactions = ImplicitTransactions;
userOptionsOption.NumericRoundAbort = ImplicitTransactions;
// Register option with the collection
options.Add(userOptionsOption);
// Create date first/date format option
TDSSessionStateDateFirstDateFormatOption dateFirstDateFormatOption = new TDSSessionStateDateFirstDateFormatOption();
// Transfer properties from the session onto the session state
dateFirstDateFormatOption.DateFirst = DateFirst;
dateFirstDateFormatOption.DateFormat = DateFormat;
// Register option with the collection
options.Add(dateFirstDateFormatOption);
// Allocate deadlock priority option
TDSSessionStateDeadlockPriorityOption deadlockPriorityOption = new TDSSessionStateDeadlockPriorityOption();
// Transfer properties from the session onto the session state
deadlockPriorityOption.Value = (sbyte)DeadlockPriority;
// Register option with the collection
options.Add(deadlockPriorityOption);
// Allocate lock timeout option
TDSSessionStateLockTimeoutOption lockTimeoutOption = new TDSSessionStateLockTimeoutOption();
// Transfer properties from the session onto the session state
lockTimeoutOption.Value = LockTimeout;
// Register option with the collection
options.Add(lockTimeoutOption);
// Allocate ISO fips option
TDSSessionStateISOFipsOption isoFipsOption = new TDSSessionStateISOFipsOption();
// Transfer properties from the session onto the session state
isoFipsOption.TransactionIsolationLevel = TransactionIsolationLevel;
// Register option with the collection
options.Add(isoFipsOption);
// Allocate text size option
TDSSessionStateTextSizeOption textSizeOption = new TDSSessionStateTextSizeOption();
// Transfer properties from the session onto the session state
textSizeOption.Value = TextSize;
// Register option with the collection
options.Add(textSizeOption);
// Check if context info is specified
if (ContextInfo != null)
{
// Allocate context info option
TDSSessionStateContextInfoOption contextInfoOption = new TDSSessionStateContextInfoOption();
// Transfer properties from the session onto the session state
contextInfoOption.Value = ContextInfo;
// Register option with the collection
options.Add(isoFipsOption);
}
return(options);
}
/// <summary>
/// Inflate recovery data
/// </summary>
private void _InflateRecoveryData(TDSSessionRecoveryData data)
{
// Check if database is available
if (data.Database != null)
{
// Apply database
Database = data.Database;
}
// Check if language is available
if (data.Language != null)
{
// Apply language
Language = LanguageString.ToEnum(data.Language);
}
// Check if collation is available
if (data.Collation != null)
{
Collation = data.Collation;
}
// Traverse all session states and inflate each separately
foreach (TDSSessionStateOption option in data.Options)
{
// Check on the options
if (option is TDSSessionStateUserOptionsOption)
{
// Cast to specific option
TDSSessionStateUserOptionsOption specificOption = option as TDSSessionStateUserOptionsOption;
// Transfer properties from the session state onto the session
AnsiWarnings = specificOption.AnsiWarnings;
AnsiNulls = specificOption.AnsiNulls;
CursorCloseOnCommit = specificOption.CursorCloseOnCommit;
QuotedIdentifier = specificOption.QuotedIdentifier;
ConcatNullYieldsNull = specificOption.ConcatNullYieldsNull;
AnsiNullDefaultOn = specificOption.AnsiNullDefaultOn;
AnsiPadding = specificOption.AnsiPadding;
ArithAbort = specificOption.ArithAbort;
TransactionAbortOnError = specificOption.TransactionAbortOnError;
NoCount = specificOption.NoCount;
ArithIgnore = specificOption.ArithIgnore;
ImplicitTransactions = specificOption.ImplicitTransactions;
NumericRoundAbort = specificOption.NumericRoundAbort;
}
else if (option is TDSSessionStateDateFirstDateFormatOption)
{
// Cast to specific option
TDSSessionStateDateFirstDateFormatOption specificOption = option as TDSSessionStateDateFirstDateFormatOption;
// Transfer properties from the session state onto the session
DateFirst = specificOption.DateFirst;
DateFormat = specificOption.DateFormat;
}
else if (option is TDSSessionStateDeadlockPriorityOption)
{
// Cast to specific option
TDSSessionStateDeadlockPriorityOption specificOption = option as TDSSessionStateDeadlockPriorityOption;
// Transfer properties from the session state onto the session
DeadlockPriority = specificOption.Value;
}
else if (option is TDSSessionStateLockTimeoutOption)
{
// Cast to specific option
TDSSessionStateLockTimeoutOption specificOption = option as TDSSessionStateLockTimeoutOption;
// Transfer properties from the session state onto the session
LockTimeout = specificOption.Value;
}
else if (option is TDSSessionStateISOFipsOption)
{
// Cast to specific option
TDSSessionStateISOFipsOption specificOption = option as TDSSessionStateISOFipsOption;
// Transfer properties from the session state onto the session
TransactionIsolationLevel = specificOption.TransactionIsolationLevel;
}
else if (option is TDSSessionStateTextSizeOption)
{
// Cast to specific option
TDSSessionStateTextSizeOption specificOption = option as TDSSessionStateTextSizeOption;
// Transfer properties from the session state onto the session
TextSize = specificOption.Value;
}
else if (option is TDSSessionStateContextInfoOption)
{
// Cast to specific option
TDSSessionStateContextInfoOption specificOption = option as TDSSessionStateContextInfoOption;
// Transfer properties from the session state onto the session
ContextInfo = specificOption.Value;
}
}
}
/// <summary>
/// Inflate from stream
/// </summary>
public override bool Inflate(Stream source)
{
// Create options collection
Options = new List <TDSSessionStateOption>();
// We skip feature ID because it was read by construction factory
// Read the total length
uint totalLength = TDSUtilities.ReadUInt(source);
// Current position in the stream
uint currentLength = 0;
// Read while we have data
while (totalLength > currentLength)
{
// Read a byte that identifies the session state slot
byte stateID = (byte)source.ReadByte();
// Update current position
currentLength += sizeof(byte);
// Option being inflated
TDSSessionStateOption option = null;
// Dispatch inflation based on the state
switch (stateID)
{
// UserOptionAll
case TDSSessionStateUserOptionsOption.ID:
{
// Create a new option
option = new TDSSessionStateUserOptionsOption();
break;
}
// DateFirstDateFormat
case TDSSessionStateDateFirstDateFormatOption.ID:
{
// Create a new option
option = new TDSSessionStateDateFirstDateFormatOption();
break;
}
// DbDeadlockPri
case TDSSessionStateDeadlockPriorityOption.ID:
{
// Create a new option
option = new TDSSessionStateDeadlockPriorityOption();
break;
}
// LockTimeout
case TDSSessionStateLockTimeoutOption.ID:
{
// Create a new option
option = new TDSSessionStateLockTimeoutOption();
break;
}
// IsoFips
case TDSSessionStateISOFipsOption.ID:
{
// Create a new option
option = new TDSSessionStateISOFipsOption();
break;
}
// TextSize
case TDSSessionStateTextSizeOption.ID:
{
// Create a new option
option = new TDSSessionStateTextSizeOption();
break;
}
// ContextInfo
case TDSSessionStateContextInfoOption.ID:
{
// Create a new option
option = new TDSSessionStateContextInfoOption();
break;
}
default:
{
// Create a new option
option = new TDSSessionStateGenericOption(stateID);
break;
}
}
// Inflate the option
option.Inflate(source);
// Register option with the collection
Options.Add(option);
// Update current length with the inflation size of the data
currentLength += option.InflationSize;
}
// Inflation is complete
return(true);
}
