@Override
public void encode(ReadableDuration value, OutputStream outStream, Context context)
throws CoderException, IOException {
if (value == null) {
throw new CoderException("cannot encode a null ReadableDuration");
}
longCoder.encode(toLong(value), outStream, context);
}
@Override
public void registerByteSizeObserver(
ReadableDuration value, ElementByteSizeObserver observer, Context context) throws Exception {
longCoder.registerByteSizeObserver(toLong(value), observer, context);
}
/**
* {@inheritDoc}
*
* @return {@code true}, because it is cheap to ascertain the byte size of a long.
*/
@Override
public boolean isRegisterByteSizeObserverCheap(ReadableDuration value, Context context) {
return longCoder.isRegisterByteSizeObserverCheap(toLong(value), context);
}
@Override
public ReadableDuration decode(InputStream inStream, Context context)
throws CoderException, IOException {
return fromLong(longCoder.decode(inStream, context));
}
/**
* A {@link Coder} that encodes a joda {@link Duration} as a {@link Long} using the format of {@link
* VarLongCoder}.
*/
public class DurationCoder extends AtomicCoder<ReadableDuration> {
@JsonCreator
public static DurationCoder of() {
return INSTANCE;
}
/////////////////////////////////////////////////////////////////////////////
private static final DurationCoder INSTANCE = new DurationCoder();
private final VarLongCoder longCoder = VarLongCoder.of();
private DurationCoder() {}
private Long toLong(ReadableDuration value) {
return value.getMillis();
}
private ReadableDuration fromLong(Long decoded) {
return Duration.millis(decoded);
}
@Override
public void encode(ReadableDuration value, OutputStream outStream, Context context)
throws CoderException, IOException {
if (value == null) {
throw new CoderException("cannot encode a null ReadableDuration");
}
longCoder.encode(toLong(value), outStream, context);
}
@Override
public ReadableDuration decode(InputStream inStream, Context context)
throws CoderException, IOException {
return fromLong(longCoder.decode(inStream, context));
}
/**
* {@inheritDoc}
*
* @return {@code true}. This coder is injective.
*/
@Override
public boolean consistentWithEquals() {
return true;
}
/**
* {@inheritDoc}
*
* @return {@code true}, because it is cheap to ascertain the byte size of a long.
*/
@Override
public boolean isRegisterByteSizeObserverCheap(ReadableDuration value, Context context) {
return longCoder.isRegisterByteSizeObserverCheap(toLong(value), context);
}
@Override
public void registerByteSizeObserver(
ReadableDuration value, ElementByteSizeObserver observer, Context context) throws Exception {
longCoder.registerByteSizeObserver(toLong(value), observer, context);
}
}
