public long readLastAddConfirmed(long ledgerId) throws IOException {
long requestNanos = MathUtils.nowInNano();
boolean success = false;
try {
LedgerDescriptor handle = handles.getReadOnlyHandle(ledgerId);
long lac = handle.getLastAddConfirmed();
success = true;
return lac;
} finally {
long elapsedMicros = MathUtils.elapsedMicroSec(requestNanos);
if (success) {
readLastConfirmedStats.registerSuccessfulEvent(elapsedMicros);
} else {
readLastConfirmedStats.registerFailedEvent(elapsedMicros);
}
}
}
public ByteBuffer readEntry(long ledgerId, long entryId) throws IOException, NoLedgerException {
long requestNanos = MathUtils.nowInNano();
boolean success = false;
try {
LedgerDescriptor handle = handles.getReadOnlyHandle(ledgerId);
LOG.trace("Reading {}@{}", entryId, ledgerId);
ByteBuffer data = handle.readEntry(entryId);
success = true;
return data;
} finally {
long elapsedMicros = MathUtils.elapsedMicroSec(requestNanos);
if (success) {
readEntryStats.registerSuccessfulEvent(elapsedMicros);
} else {
readEntryStats.registerFailedEvent(elapsedMicros);
}
}
}
public Observable waitForLastAddConfirmedUpdate(
long ledgerId, long previoisLAC, Observer observer) throws IOException {
LedgerDescriptor handle = handles.getReadOnlyHandle(ledgerId);
return handle.waitForLastAddConfirmedUpdate(previoisLAC, observer);
}