@SuppressWarnings("unchecked")
@Override
protected void getAsync(UserTObject object, Object key, FutureWithCallback<Object> future) {
if (object.getSharedVersion_objectfabric().getUnion() instanceof Record) {
long record = getOrFetchRecord(object.getSharedVersion_objectfabric());
if (Record.isStored(record)) {
BTree tree = BTree.load(getRecordManager(), record, false);
_writer.write(key);
byte[] data = new byte[_writer.getOffset()];
PlatformAdapter.arraycopy(_writer.getBuffer(), 0, data, 0, data.length);
long id = tree.fetch(data);
if (id != 0) {
data = getRecordManager().fetch(id);
Object value = _reader.read(data);
_reader.readVersions();
Version version = _reader.getOrCreateVersion(object);
TKeyedEntry entry = new TKeyedEntry(key, TKeyed.hash(key), value, false);
if (Debug.ENABLED)
Debug.assertion(value != TKeyedEntry.REMOVAL);
((LazyMapVersion) version).putEntry(key, entry, true, true);
_reader.importVersions();
future.set(value);
return;
}
}
}
future.set(null);
}
@Override
protected void fetchAsync(List<byte[]> refs, AsyncCallback<Object[]> objects) {
Object[] result = new Object[refs.size()];
for (int i = 0; i < result.length; i++) {
result[i] = _reader.read(refs.get(i));
_reader.readVersions();
_reader.importVersions();
}
objects.onSuccess(result);
}
@Override
protected void getRootAsync(FutureWithCallback<Object> future) {
long rootId = _jdbm.getRoot(ROOT);
byte[] data = null;
if (rootId == 0)
future.set(null);
else {
data = _jdbm.fetch(rootId);
if (data == null)
throw new RuntimeIOException(Strings.CORRUPTED_STORE);
Object root = _reader.read(data);
_reader.readVersions();
_reader.importVersions();
future.set(root);
}
}
public final void start() {
onStarting();
long sessionsId = _jdbm.getRoot(SESSIONS);
if (sessionsId != 0) {
_sessions = BTree.load(_jdbm, sessionsId, true);
if (_sessions == null)
throw new RuntimeIOException(Strings.CORRUPTED_STORE);
} else {
_sessions = new BTree(_jdbm, true);
_jdbm.setRoot(SESSIONS, _sessions.getId());
}
if (Debug.THREADS) {
ThreadAssert.exchangeGive(this, _sessions);
ThreadAssert.exchangeGiveList(this, _reader.getThreadContextObjects());
ThreadAssert.exchangeGiveList(this, _writer.getThreadContextObjects());
ThreadAssert.exchangeGive(this, this);
}
onStarted();
}