package co.nstant.in.cbor.encoder;
import java.io.OutputStream;
import co.nstant.in.cbor.CborEncoder;
import co.nstant.in.cbor.CborException;
import co.nstant.in.cbor.model.DoublePrecisionFloat;
import co.nstant.in.cbor.model.HalfPrecisionFloat;
import co.nstant.in.cbor.model.SimpleValue;
import co.nstant.in.cbor.model.SimpleValueType;
import co.nstant.in.cbor.model.SinglePrecisionFloat;
import co.nstant.in.cbor.model.Special;
public class SpecialEncoder extends AbstractEncoder<Special> {
private final HalfPrecisionFloatEncoder halfPrecisionFloatEncoder;
private final SinglePrecisionFloatEncoder singlePrecisionFloatEncoder;
private final DoublePrecisionFloatEncoder doublePrecisionFloatEncoder;
public SpecialEncoder(CborEncoder encoder, OutputStream outputStream) {
super(encoder, outputStream);
halfPrecisionFloatEncoder = new HalfPrecisionFloatEncoder(encoder, outputStream);
singlePrecisionFloatEncoder = new SinglePrecisionFloatEncoder(encoder, outputStream);
doublePrecisionFloatEncoder = new DoublePrecisionFloatEncoder(encoder, outputStream);
}
@Override
public void encode(Special dataItem) throws CborException {
switch (dataItem.getSpecialType()) {
case BREAK:
write((7 << 5) | 31);
break;
case SIMPLE_VALUE:
SimpleValue simpleValue = (SimpleValue) dataItem;
switch (simpleValue.getSimpleValueType()) {
case FALSE:
case NULL:
case TRUE:
case UNDEFINED:
SimpleValueType type = simpleValue.getSimpleValueType();
write((7 << 5) | type.getValue());
break;
case UNALLOCATED:
write((7 << 5) | simpleValue.getValue());
break;
case RESERVED:
default:
throw new CborException("Not implemented");
}
break;
case UNALLOCATED:
throw new CborException("Unallocated special type");
case IEEE_754_HALF_PRECISION_FLOAT:
if (!(dataItem instanceof HalfPrecisionFloat)) {
throw new CborException("Wrong data item type");
}
halfPrecisionFloatEncoder.encode((HalfPrecisionFloat) dataItem);
break;
case IEEE_754_SINGLE_PRECISION_FLOAT:
if (!(dataItem instanceof SinglePrecisionFloat)) {
throw new CborException("Wrong data item type");
}
singlePrecisionFloatEncoder.encode((SinglePrecisionFloat) dataItem);
break;
case IEEE_754_DOUBLE_PRECISION_FLOAT:
if (!(dataItem instanceof DoublePrecisionFloat)) {
throw new CborException("Wrong data item type");
}
doublePrecisionFloatEncoder.encode((DoublePrecisionFloat) dataItem);
break;
case SIMPLE_VALUE_NEXT_BYTE:
if (!(dataItem instanceof SimpleValue)) {
throw new CborException("Wrong data item type");
}
SimpleValue simpleValueNextByte = (SimpleValue) dataItem;
write((7 << 5) | 24);
write(simpleValueNextByte.getValue());
break;
default:
throw new CborException("Not implemented");
}
}
}