private void rollback0(long address, boolean writeDiscard) throws JournalException {
if (address == -1L) {
notifyTxError();
throw new IncompatibleJournalException(
"Server txn is not compatible with %s", this.getLocation());
}
txLog.read(address, tx);
if (tx.address == 0) {
throw new JournalException("Invalid transaction address");
}
if (writeDiscard) {
LOGGER.info(
"Journal %s is rolling back to transaction #%d, timestamp %s",
metadata.getLocation(), tx.txn, Dates.toString(tx.timestamp));
writeDiscardFile(tx.journalMaxRowID);
}
// partitions need to be dealt with first to make sure new lag is assigned a correct
// partitionIndex
rollbackPartitions(tx);
Partition<T> lag = getIrregularPartition();
if (tx.lagName != null
&& tx.lagName.length() > 0
&& (lag == null || !tx.lagName.equals(lag.getName()))) {
Partition<T> newLag = createTempPartition(tx.lagName);
setIrregularPartition(newLag);
newLag.applyTx(tx.lagSize, tx.lagIndexPointers);
} else if (lag != null && tx.lagName == null) {
removeIrregularPartitionInternal();
} else if (lag != null) {
lag.truncate(tx.lagSize);
}
if (tx.symbolTableSizes.length == 0) {
for (int i = 0, sz = getSymbolTableCount(); i < sz; i++) {
getSymbolTable(i).truncate();
}
} else {
for (int i = 0, sz = getSymbolTableCount(); i < sz; i++) {
getSymbolTable(i).truncate(tx.symbolTableSizes[i]);
}
}
appendTimestampLo = -1;
appendTimestampHi = -1;
appendPartition = null;
txLog.writeTxAddress(tx.address);
txActive = false;
}
public void truncate() throws JournalException {
beginTx();
int partitionCount = getPartitionCount();
for (int i = 0; i < partitionCount; i++) {
Partition<T> partition = getPartition(i, true);
partition.truncate(0);
partition.close();
Files.deleteOrException(partition.getPartitionDir());
}
closePartitions();
for (int i = 0, sz = getSymbolTableCount(); i < sz; i++) {
getSymbolTable(i).truncate();
}
appendTimestampLo = -1;
commitDurable();
}
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;
}
}
}
