@SuppressWarnings("deprecation")
@Override
public DResult get(Get get, long startId) throws IOException {
if (get.hasFamilies()) get.addFamily(DominoConst.INNER_FAMILY);
get.setTimeRange(0, startId + 1); // [x, y)
get.setMaxVersions();
Result preRead = region.get(get);
List<KeyValue> status = preRead.getColumn(DominoConst.INNER_FAMILY, DominoConst.STATUS_COL);
if (status == null || status.size() == 0) {
Result ret = MVCC.handleResult(this, getTrxMetaTable(), preRead, startId, null);
return new DResult(ret, null);
}
Integer lockId = region.getLock(null, get.getRow(), true);
try {
Result r =
MVCC.handleResult(this, getTrxMetaTable(), region.get(get, lockId), startId, lockId);
return new DResult(r, null);
} catch (TransactionOutOfDateException oode) {
return new DResult(null, oode.getMessage());
} catch (InvalidRowStatusException e) {
return new DResult(null, e.getMessage());
} finally {
region.releaseRowLock(lockId);
}
}
private static boolean containsStatus(Result r, long startId) {
List<KeyValue> status = r.getColumn(DominoConst.INNER_FAMILY, DominoConst.STATUS_COL);
if (status == null) return false;
for (KeyValue kv : status) {
if (kv.getTimestamp() == startId) return true;
}
return false;
}
@SuppressWarnings("deprecation")
@Override
public void commitRow(byte[] row, long startId, long commitId, boolean isDelete, Integer lockId)
throws IOException {
Get get = new Get(row);
get.setMaxVersions();
get.addFamily(DominoConst.INNER_FAMILY);
Result r = region.get(get, lockId);
if (!containsStatus(r, startId)) {
// Other transaction may have committed this row of this version
LOG.info(
"Commit: No status found, returning: {}.{}", new String(this.getName()), new String(row));
return;
}
List<KeyValue> versions = r.getColumn(DominoConst.INNER_FAMILY, DominoConst.VERSION_COL);
Put commit = new Put(row);
commit.setWriteToWAL(true);
boolean isFresh = true;
if (versions.size() >= DominoConst.MAX_VERSION) {
// We need to clean the earliest version.
LOG.info(
"Commit: rolling version window: {}.{}", new String(this.getName()), new String(row));
isFresh = addClearColumns(commit, versions, r, row, isDelete, commitId, startId, lockId);
}
KeyValue clearStatusKV =
new KeyValue(
row, DominoConst.INNER_FAMILY, DominoConst.STATUS_COL, startId, KeyValue.Type.Delete);
commit.add(clearStatusKV);
byte[] value = DominoConst.versionValue(startId, isDelete);
if (isFresh) {
KeyValue commitKV =
new KeyValue(row, DominoConst.INNER_FAMILY, DominoConst.VERSION_COL, commitId, value);
commit.add(commitKV);
}
// commitNumericModifications(row, startId, lockId, commit);
mutateRow(commit, lockId);
}