public static int compareCommonFamilyPrefix(Cell left, Cell right, int familyCommonPrefix) {
return Bytes.compareTo(
left.getFamilyArray(),
left.getFamilyOffset() + familyCommonPrefix,
left.getFamilyLength() - familyCommonPrefix,
right.getFamilyArray(),
right.getFamilyOffset() + familyCommonPrefix,
right.getFamilyLength() - familyCommonPrefix);
}
private static int findCommonPrefixInFamilyPart(Cell left, Cell right, int familyCommonPrefix) {
return Bytes.findCommonPrefix(
left.getFamilyArray(),
right.getFamilyArray(),
left.getFamilyLength() - familyCommonPrefix,
right.getFamilyLength() - familyCommonPrefix,
left.getFamilyOffset() + familyCommonPrefix,
right.getFamilyOffset() + familyCommonPrefix);
}
/**
* Find the column index which will replace the column name in the aggregated array and will be
* restored in Reducer
*
* @param cell KeyValue for the column
* @return column index for the specified cell or -1 if was not found
*/
private int findIndex(Cell cell) throws IOException {
byte[] familyName =
Bytes.copy(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());
byte[] name =
Bytes.copy(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
byte[] cfn = Bytes.add(familyName, QueryConstants.NAMESPACE_SEPARATOR_BYTES, name);
if (columnIndexes.containsKey(cfn)) {
return columnIndexes.get(cfn);
}
return -1;
}
@Override
public void write(Cell cell) throws IOException {
if (encryptor == null) {
super.write(cell);
return;
}
byte[] iv = nextIv();
encryptor.setIv(iv);
encryptor.reset();
// TODO: Check if this is a cell for an encrypted CF. If not, we can
// write a 0 here to signal an unwrapped cell and just dump the KV bytes
// afterward
StreamUtils.writeRawVInt32(out, iv.length);
out.write(iv);
// TODO: Add support for WAL compression
ByteArrayOutputStream baos = new ByteArrayOutputStream();
OutputStream cout = encryptor.createEncryptionStream(baos);
int tlen = cell.getTagsLength();
// Write the KeyValue infrastructure as VInts.
StreamUtils.writeRawVInt32(cout, KeyValueUtil.keyLength(cell));
StreamUtils.writeRawVInt32(cout, cell.getValueLength());
// To support tags
StreamUtils.writeRawVInt32(cout, tlen);
// Write row, qualifier, and family
StreamUtils.writeRawVInt32(cout, cell.getRowLength());
cout.write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
StreamUtils.writeRawVInt32(cout, cell.getFamilyLength());
cout.write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());
StreamUtils.writeRawVInt32(cout, cell.getQualifierLength());
cout.write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
// Write the rest ie. ts, type, value and tags parts
StreamUtils.writeLong(cout, cell.getTimestamp());
cout.write(cell.getTypeByte());
cout.write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());
if (tlen > 0) {
cout.write(cell.getTagsArray(), cell.getTagsOffset(), tlen);
}
cout.close();
StreamUtils.writeRawVInt32(out, baos.size());
baos.writeTo(out);
// Increment IV given the final payload length
incrementIv(baos.size());
}
@Override
public Cell getNextCellHint(Cell kv) {
return KeyValue.createFirstOnRow(
kv.getRowArray(),
kv.getRowOffset(),
kv.getRowLength(),
kv.getFamilyArray(),
kv.getFamilyOffset(),
kv.getFamilyLength(),
this.minColumn,
0,
len(this.minColumn));
}
@Override
public Cell getNextCellHint(Cell kv) {
return KeyValueUtil.createFirstOnRow(
kv.getRowArray(),
kv.getRowOffset(),
kv.getRowLength(),
kv.getFamilyArray(),
kv.getFamilyOffset(),
kv.getFamilyLength(),
hint,
0,
hint.length);
}
@Override
public void write(Cell cell) throws IOException {
checkFlushed();
// Row
write(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
// Column family
write(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength());
// Qualifier
write(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
// Version
this.out.write(Bytes.toBytes(cell.getTimestamp()));
// Type
this.out.write(cell.getTypeByte());
// Value
write(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());
// Tags
write(cell.getTagsArray(), cell.getTagsOffset(), cell.getTagsLength());
// MvccVersion
this.out.write(Bytes.toBytes(cell.getMvccVersion()));
}
