Examples with KeyValue herddb.utils.KeyValue used on opensource projects

Example 1 with KeyValue

use of herddb.utils.KeyValue in project herddb by diennea.

the class TableSpaceManager method sendTransactionsDump.

private void sendTransactionsDump(List<Transaction> batch, Channel channel, String dumpId, final int timeout) throws TimeoutException, InterruptedException {
    if (batch.isEmpty()) {
        return;
    }
    List<KeyValue> encodedTransactions = batch.stream().map(tr -> {
        return new KeyValue(Bytes.from_long(tr.transactionId), Bytes.from_array(tr.serialize()));
    }).collect(Collectors.toList());
    long id = channel.generateRequestId();
    try (Pdu response_to_transactionsData = channel.sendMessageWithPduReply(id, PduCodec.TablespaceDumpData.write(id, tableSpaceName, dumpId, "transactions", null, 0, 0, 0, null, encodedTransactions), timeout)) {
        if (response_to_transactionsData.type != Pdu.TYPE_ACK) {
            LOGGER.log(Level.SEVERE, "error response at transactionsData command");
        }
    }
    batch.clear();
}

Example 2 with KeyValue

use of herddb.utils.KeyValue in project herddb by diennea.

the class TableSpaceRestoreSourceFromFile method nextTableDataChunk.

@Override
public List<KeyValue> nextTableDataChunk() throws DataStorageManagerException {
    try {
        int numRecords = in.readVInt();
        if (Integer.MIN_VALUE == numRecords) {
            // EndOfTableMarker
            listener.log("tablefinished", "table finished after " + currentTableSize + " records", Collections.singletonMap("count", numRecords));
            return null;
        }
        listener.log("sendtabledata", "sending " + numRecords + ", total " + currentTableSize, Collections.singletonMap("count", numRecords));
        List<KeyValue> records = new ArrayList<>(numRecords);
        for (int i = 0; i < numRecords; i++) {
            Bytes key = in.readBytes();
            Bytes value = in.readBytes();
            records.add(new KeyValue(key, value));
        }
        currentTableSize += numRecords;
        return records;
    } catch (IOException err) {
        throw new DataStorageManagerException(err);
    }
}

Example 3 with KeyValue

use of herddb.utils.KeyValue in project herddb by diennea.

the class TableSpaceManager method sendDumpedCommitLog.

private void sendDumpedCommitLog(List<DumpedLogEntry> txlogentries, Channel channel, String dumpId, final int timeout) throws TimeoutException, InterruptedException {
    List<KeyValue> batch = new ArrayList<>();
    for (DumpedLogEntry e : txlogentries) {
        batch.add(new KeyValue(Bytes.from_array(e.logSequenceNumber.serialize()), Bytes.from_array(e.entryData)));
    }
    long id = channel.generateRequestId();
    try (Pdu response_to_txlog = channel.sendMessageWithPduReply(id, PduCodec.TablespaceDumpData.write(id, tableSpaceName, dumpId, "txlog", null, 0, 0, 0, null, batch), timeout)) {
        if (response_to_txlog.type != Pdu.TYPE_ACK) {
            LOGGER.log(Level.SEVERE, "error response at txlog command");
        }
    }
}

Example 4 with KeyValue

use of herddb.utils.KeyValue in project herddb by diennea.

the class TableSpaceRestoreSourceFromFile method nextTransactionLogChunk.

@Override
public List<KeyValue> nextTransactionLogChunk() throws DataStorageManagerException {
    try {
        int numRecords = in.readVInt();
        listener.log("nexttxchunk", "sending " + numRecords + " tx log entries", Collections.singletonMap("count", numRecords));
        List<KeyValue> records = new ArrayList<>(numRecords);
        for (int i = 0; i < numRecords; i++) {
            long ledgerId = in.readVLong();
            long offset = in.readVLong();
            Bytes value = in.readBytes();
            records.add(new KeyValue(Bytes.from_array(new LogSequenceNumber(ledgerId, offset).serialize()), value));
        }
        return records;
    } catch (IOException err) {
        throw new DataStorageManagerException(err);
    }
}