// These constructors are private and used by Decode() method.
// Binary deserializer.
WorkflowSymbol(BinaryReader reader, byte[] checksum)
{
this.FileName = reader.ReadString();
int numSymbols = SymbolHelper.ReadEncodedInt32(reader);
this.Symbols = new List <ActivitySymbol>(numSymbols);
for (int i = 0; i < numSymbols; ++i)
{
this.Symbols.Add(new ActivitySymbol(reader));
}
this.checksum = checksum;
}
// Binary deserializer.
internal ActivitySymbol(BinaryReader reader)
{
this.StartLine = SymbolHelper.ReadEncodedInt32(reader);
this.StartColumn = SymbolHelper.ReadEncodedInt32(reader);
this.EndLine = SymbolHelper.ReadEncodedInt32(reader);
this.EndColumn = SymbolHelper.ReadEncodedInt32(reader);
int qidLength = SymbolHelper.ReadEncodedInt32(reader);
if (qidLength > 0)
{
this.QualifiedId = reader.ReadBytes(qidLength);
}
}
// Binary serializer
void Write(BinaryWriter writer)
{
writer.Write(this.FileName ?? string.Empty);
if (this.Symbols != null)
{
SymbolHelper.WriteEncodedInt32(writer, this.Symbols.Count);
foreach (ActivitySymbol actSym in this.Symbols)
{
actSym.Write(writer);
}
}
else
{
SymbolHelper.WriteEncodedInt32(writer, 0);
}
}
// Binary serializer.
internal void Write(BinaryWriter writer)
{
SymbolHelper.WriteEncodedInt32(writer, this.StartLine);
SymbolHelper.WriteEncodedInt32(writer, this.StartColumn);
SymbolHelper.WriteEncodedInt32(writer, this.EndLine);
SymbolHelper.WriteEncodedInt32(writer, this.EndColumn);
if (this.QualifiedId != null)
{
SymbolHelper.WriteEncodedInt32(writer, this.QualifiedId.Length);
writer.Write(this.QualifiedId, 0, this.QualifiedId.Length);
}
else
{
SymbolHelper.WriteEncodedInt32(writer, 0);
}
}
internal string Encode(EncodingFormat encodingFormat)
{
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter writer = new BinaryWriter(ms))
{
if (this.checksum != null)
{
writer.Write((byte)(encodingFormat | EncodingFormat.Checksum));
SymbolHelper.WriteEncodedInt32(writer, this.checksum.Length);
writer.Write(this.checksum);
}
else
{
writer.Write((byte)encodingFormat);
}
switch (encodingFormat)
{
case EncodingFormat.Binary:
this.Write(writer);
break;
case EncodingFormat.String:
writer.Write(this.ToString());
break;
default:
throw FxTrace.Exception.AsError(new SerializationException());
}
// Need to copy to a buffer to trim excess capacity.
byte[] buffer = new byte[ms.Length];
Array.Copy(ms.GetBuffer(), buffer, ms.Length);
return(Convert.ToBase64String(buffer));
}
}
}