@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 setRootAsync(Object value, FutureWithCallback<Void> future) {
if (value instanceof UserTObject && ((UserTObject) value).getTrunk().getStore() != BinaryStore.this)
future.setException(new RuntimeException(Strings.WRONG_STORE));
else {
byte[] data = writeObject(value);
long id = _jdbm.getRoot(ROOT);
if (id != 0)
_jdbm.update(id, data);
else {
id = _jdbm.insert(data);
_jdbm.setRoot(ROOT, id);
}
future.set(null);
}
}
@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);
}
}
