private void commit(byte command, long txn, long txPin) throws JournalException {
boolean force = command == Tx.TX_FORCE;
Partition<T> partition = lastNonEmptyNonLag();
Partition<T> lag = getIrregularPartition();
tx.command = command;
tx.txn = txn;
tx.txPin = txPin;
tx.prevTxAddress = txLog.getCurrentTxAddress();
tx.journalMaxRowID =
partition == null ? -1 : Rows.toRowID(partition.getPartitionIndex(), partition.size());
tx.lastPartitionTimestamp =
partition == null || partition.getInterval() == null ? 0 : partition.getInterval().getLo();
tx.lagSize = lag == null ? 0 : lag.open().size();
tx.lagName = lag == null ? null : lag.getName();
tx.symbolTableSizes = new int[getSymbolTableCount()];
tx.symbolTableIndexPointers = new long[tx.symbolTableSizes.length];
for (int i = 0; i < tx.symbolTableSizes.length; i++) {
SymbolTable tab = getSymbolTable(i);
tab.commit();
if (force) {
tab.force();
}
tx.symbolTableSizes[i] = tab.size();
tx.symbolTableIndexPointers[i] = tab.getIndexTxAddress();
}
tx.indexPointers = new long[getMetadata().getColumnCount()];
for (int i = Math.max(txPartitionIndex, 0), sz = nonLagPartitionCount(); i < sz; i++) {
Partition<T> p = getPartition(i, true);
p.commit();
if (force) {
p.force();
}
}
if (partition != null) {
partition.getIndexPointers(tx.indexPointers);
}
tx.lagIndexPointers = new long[tx.indexPointers.length];
if (lag != null) {
lag.commit();
if (force) {
lag.force();
}
lag.getIndexPointers(tx.lagIndexPointers);
}
txLog.write(tx, txn != -1);
if (force) {
txLog.force();
}
}
private void rollbackPartitions(Tx tx) throws JournalException {
int partitionIndex = tx.journalMaxRowID == -1 ? 0 : Rows.toPartitionIndex(tx.journalMaxRowID);
while (true) {
Partition<T> p = partitions.getLast();
if (p == null) {
break;
}
if (p.getPartitionIndex() > partitionIndex) {
p.close();
Files.deleteOrException(p.getPartitionDir());
partitions.remove(partitions.size() - 1);
} else if (p.getPartitionIndex() == partitionIndex) {
p.open();
p.truncate(tx.journalMaxRowID == -1 ? 0 : Rows.toLocalRowID(tx.journalMaxRowID));
break;
} else {
break;
}
}
}