private void ReadFile(Stream stream)
{
try
{
Reset();
this.stream = stream;
ReaderBin reader = new ReaderBin(stream);
string header = "";
try
{
header = reader.ReadUnicodeString();
if (!header.StartsWith("GOLD"))
{
throw new CGTStructureException("El encabezado del archivo es inválido");
}
}
catch (EndOfStreamException e)
{
throw new CGTStructureException("El encabezado del archivo es inválido", e);
}
RecordCollection records = new RecordCollection();
while (!(stream.Position == stream.Length))
{
records.Add(ReadRecord(reader));
}
structure = new CGTStructure(header, records);
content = new CGTContent(structure);
dfaStates = CreateDFAStates(content);
parserStates = CreateParserStates(content);
}
finally
{
stream.Close();
}
}
static public Entry CreateEntry(ReaderBin reader)
{
Entry entry = null;
byte entryType = reader.ReadByte();
switch (entryType)
{
case 69: // 'E'
entry = new EmptyEntry();
break;
case 98: // 'b'
entry = new ByteEntry(reader);
break;
case 66: // 'B'
entry = new BooleanEntry(reader);
break;
case 73: // 'I'
entry = new IntegerEntry(reader);
break;
case 83: // 'S'
entry = new StringEntry(reader);
break;
default: //Unknown
throw new CGTStructureException("No se sabe el tipo");
}
return(entry);
}
private Entry ReadEntry(ReaderBin reader)
{
Entry entry = EntryFactory.CreateEntry(reader);
if (entry == null)
{
throw new CGTStructureException("Invalid entry type at byte " + (stream.Position - 1));
}
return(entry);
}
private Record ReadRecord(ReaderBin reader)
{
Record record = new Record();
byte entriesHeader = reader.ReadByte();
if (entriesHeader != 77)
{
throw new CGTStructureException("Invalid entries header at byte " + (stream.Position - 1));
}
ushort entriesCount = reader.ReadUInt16();
for (int i = 0; i < entriesCount; i++)
{
record.Entries.Add(ReadEntry(reader));
}
return(record);
}
public StringEntry(ReaderBin reader)
{
value = reader.ReadUnicodeString();
}
public IntegerEntry(ReaderBin reader)
{
value = reader.ReadInt16();
}
public BooleanEntry(ReaderBin reader)
{
value = reader.ReadBoolean();
}
public ByteEntry(ReaderBin reader)
{
value = reader.ReadByte();
}
