public virtual BACVnetVar Decode(BACPacket cm, CONTEXT_TAG ct)
{
byte a = cm.getNextByte();
classType = DecodeClass(a);
length = DecodeLenValType(a);
switch (ct)
{
case CONTEXT_TAG.NULL:
return(new BACVnetNull().Decode(cm));
case CONTEXT_TAG.BOOLEAN:
return(new BACVnetBoolean().Decode(cm));
case CONTEXT_TAG.INT:
return(new BACVnetInt().Decode(cm, length));
case CONTEXT_TAG.UINT:
return(new BACVnetUInt().Decode(cm, length));
case CONTEXT_TAG.REAL:
return(new BACVnetReal().Decode(cm, length));
case CONTEXT_TAG.DOUBLE:
return(new BACVnetDouble().Decode(cm, length));
case CONTEXT_TAG.BSTRING:
return(new BACVnetBString().Decode(cm, length));
case CONTEXT_TAG.CSTRING:
return(new BACVnetCString().Decode(cm, length));
case CONTEXT_TAG.OSTRING:
return(new BACVnetOString().Decode(cm, length));
case CONTEXT_TAG.DATE:
return(new BACVnetDate().Decode(cm, length));
case CONTEXT_TAG.TIME:
return(new BACVnetTime().Decode(cm, length));
case CONTEXT_TAG.ENUM: // 20.2.11 Encoding of an Enumerated Value; pg 1496
return(new BACVnetEnum().Decode(cm, length));
case CONTEXT_TAG.OBJECT:
return(new BACVnetObjectIdentifier().Decode(cm, length));
}
return(this);
}
public virtual BACVnetVar Decode(BACPacket cm)
{
byte tag = cm.getByte();
switch (DecodeClass(tag))
{
case CLASS.APPLICATION:
CONTEXT_TAG ct = (CONTEXT_TAG)(cm.getByte() >> 4);
return(Decode(cm, ct));
case CLASS.CONTEXT:
// IF this is an Openning Tag
if ((tag & 0x0F) == 0x0E)
{
BACVnetConstructed constr = new BACVnetConstructed();
cm.getNextByte();
while (cm.hasMore() == true)
{
tag = cm.getByte();
// IF this is the closing Tag
if ((tag & 0x0F) == 0x0F)
{
cm.getNextByte();
break;
}
BACVnetVar vn = new BACVnetVar().Decode(cm);
constr.AddVar(vn);
//constr.AddVar(cm.getNextByte());
}
return(constr);
}
else
{
// This would be an error ??
CONTEXT_TAG ct1 = (CONTEXT_TAG)(cm.getByte() >> 4);
return(Decode(cm, ct1));
}
default:
break;
}
return(this);
}