public string Encode() => this.Encode(WorkflowSymbol.DefaultEncodingFormat); // default format
/// <summary>
/// Encodes the specified encoding format.
/// </summary>
/// <param name="encodingFormat">The encoding format.</param>
/// <returns>System.String.</returns>
/// <exception cref="SerializationException"></exception>
internal string Encode(EncodingFormat encodingFormat)
{
using var ms = new MemoryStream();
using var 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.
var buffer = new byte[ms.Length];
Array.Copy(ms.GetBuffer(), buffer, ms.Length);
return(Convert.ToBase64String(buffer));
}
// 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);
}
}