import com.google.common.annotations.Beta;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.CheckedFuture;
import com.google.common.util.concurrent.Futures;
import com.google.common.annotations.Beta;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.CheckedFuture;
import com.google.common.util.concurrent.Futures;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
* Implementation of read-only transaction backed by {@link DataTreeSnapshot} which delegates most
* of its calls to similar methods provided by underlying snapshot.
*
* @param <T> identifier type
*/
@Beta
* Implementation of read-only transaction backed by {@link DataTreeSnapshot} which delegates most
* of its calls to similar methods provided by underlying snapshot.
*
* @param <T> identifier type
*/
@Beta
private static final Logger LOG = LoggerFactory.getLogger(SnapshotBackedReadTransaction.class);
private volatile DataTreeSnapshot stableSnapshot;
private static final Logger LOG = LoggerFactory.getLogger(SnapshotBackedReadTransaction.class);
private volatile DataTreeSnapshot stableSnapshot;
@Override
public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(final YangInstanceIdentifier path) {
LOG.debug("Tx: {} Read: {}", getIdentifier(), path);
@Override
public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(final YangInstanceIdentifier path) {
LOG.debug("Tx: {} Read: {}", getIdentifier(), path);
LOG.error("Tx: {} Failed Read of {}", getIdentifier(), path, e);
LOG.error("Tx: {} Failed Read of {}", getIdentifier(), path, e);