@Override
public int compare(final KeyValue left, final KeyValue right) {
return rawcomparator.compare(
left.getBuffer(),
left.getOffset() + KeyValue.ROW_OFFSET,
left.getKeyLength(),
right.getBuffer(),
right.getOffset() + KeyValue.ROW_OFFSET,
right.getKeyLength());
}
@SuppressWarnings("deprecation")
@Override
protected void writeToBuffer(MappedByteBuffer buffer, Tuple e) {
KeyValue kv = KeyValueUtil.ensureKeyValue(e.getValue(0));
buffer.putInt(kv.getLength() + Bytes.SIZEOF_INT);
buffer.putInt(kv.getLength());
buffer.put(kv.getBuffer(), kv.getOffset(), kv.getLength());
}
/**
* Convert list of KeyValues to byte buffer.
*
* @param keyValues list of KeyValues to be converted.
* @return buffer with content from key values
*/
public static ByteBuffer convertKvToByteBuffer(
List<KeyValue> keyValues, boolean includesMemstoreTS) {
int totalSize = 0;
for (KeyValue kv : keyValues) {
totalSize += kv.getLength();
if (includesMemstoreTS) {
totalSize += WritableUtils.getVIntSize(kv.getMvccVersion());
}
}
ByteBuffer result = ByteBuffer.allocate(totalSize);
for (KeyValue kv : keyValues) {
result.put(kv.getBuffer(), kv.getOffset(), kv.getLength());
if (includesMemstoreTS) {
ByteBufferUtils.writeVLong(result, kv.getMvccVersion());
}
}
return result;
}
