/// <summary>
/// Inflate from stream
/// </summary>
public virtual bool Inflate(Stream source)
{
// Create options collection
Options = new List <TDSSessionStateOption>();
// Current position in the stream
InflationSize = 0;
// Read the total length
uint totalLength = TDSUtilities.ReadUInt(source);
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
// Read the length of the string
byte byteLength = (byte)source.ReadByte();
// Update offset
InflationSize += sizeof(byte);
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
// Read the string
Database = TDSUtilities.ReadString(source, (ushort)(byteLength * 2));
// Update offset
InflationSize += ((uint)byteLength * 2); // one character is 2 bytes long
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
// Read the length of the collation
byteLength = (byte)source.ReadByte();
// Update offset
InflationSize += sizeof(byte);
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
// Check if we have a collation
if (byteLength > 0)
{
// Allocate collation
Collation = new byte[5];
// Read collation
int readBytes = source.Read(Collation, 0, Collation.Length);
// Update offset
InflationSize += (uint)readBytes;
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
}
// Read the length of the string
byteLength = (byte)source.ReadByte();
// Update offset
InflationSize += sizeof(byte);
// Check if we still have space to read
if (InflationSize >= totalLength)
{
// Inflation is complete
return(true);
}
// Read the string
Language = TDSUtilities.ReadString(source, (ushort)(byteLength * 2));
// Update offset
InflationSize += ((uint)byteLength * 2); // one character is 2 bytes long
// Read while we have data
while (totalLength > InflationSize)
{
// Read a byte that identifies the session state slot
byte stateID = (byte)source.ReadByte();
// Update current position
InflationSize += 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
InflationSize += option.InflationSize;
}
// Inflation is complete
return(true);
}
/// <summary>
/// Inflate the token
/// </summary>
/// <param name="source">Stream to inflate the token from</param>
public override bool Inflate(Stream source)
{
// We skip the token identifier because it is read by token factory
// Current inflation offset
uint inflationOffset = 0;
// Read the length of the token
uint tokenLength = TDSUtilities.ReadUInt(source);
// NOTE: Length is excluded from the token length
// Check if we still have space left to read
if (inflationOffset >= tokenLength)
{
// We read the whole token
return(true);
}
// Read sequence number
SequenceNumber = (int)TDSUtilities.ReadUInt(source);
// Update inflation offset
inflationOffset += sizeof(uint);
// Check if we still have space left to read
if (inflationOffset >= tokenLength)
{
// We read the whole token
return(true);
}
// Read status
byte status = (byte)source.ReadByte();
// Update inflation offset
inflationOffset += sizeof(byte);
// Check if we still have space left to read
if (inflationOffset >= tokenLength)
{
// We read the whole token
return(true);
}
// Parse status
IsRecoverable = ((status & 0x01) != 0);
// Read while we have data
while (tokenLength > inflationOffset)
{
// Read a byte that identifies the session state slot
byte stateID = (byte)source.ReadByte();
// Update current position
inflationOffset += 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
inflationOffset += option.InflationSize;
}
return(true);
}