2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.cluster.databroker.actors.dds;
10 import com.google.common.base.Preconditions;
11 import com.google.common.base.Verify;
12 import java.util.function.Consumer;
13 import javax.annotation.concurrent.NotThreadSafe;
14 import org.opendaylight.controller.cluster.access.commands.CommitLocalTransactionRequest;
15 import org.opendaylight.controller.cluster.access.commands.ModifyTransactionRequest;
16 import org.opendaylight.controller.cluster.access.commands.PersistenceProtocol;
17 import org.opendaylight.controller.cluster.access.concepts.Response;
18 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
21 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
24 * A read-only specialization of {@link LocalProxyTransaction}.
26 * @author Robert Varga
29 final class LocalReadOnlyProxyTransaction extends LocalProxyTransaction {
31 private final DataTreeSnapshot snapshot;
33 LocalReadOnlyProxyTransaction(final ProxyHistory parent, final TransactionIdentifier identifier,
34 final DataTreeSnapshot snapshot) {
35 super(parent, identifier);
36 this.snapshot = Preconditions.checkNotNull(snapshot);
40 boolean isSnapshotOnly() {
45 DataTreeSnapshot readOnlyView() {
50 void doDelete(final YangInstanceIdentifier path) {
51 throw new UnsupportedOperationException("Read-only snapshot");
55 void doMerge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
56 throw new UnsupportedOperationException("Read-only snapshot");
60 void doWrite(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
61 throw new UnsupportedOperationException("Read-only snapshot");
65 CommitLocalTransactionRequest commitRequest(final boolean coordinated) {
66 throw new UnsupportedOperationException("Read-only snapshot");
75 void flushState(final AbstractProxyTransaction successor) {
80 void applyModifyTransactionRequest(final ModifyTransactionRequest request,
81 final Consumer<Response<?, ?>> callback) {
82 commonModifyTransactionRequest(request, callback);
87 void replayModifyTransactionRequest(final ModifyTransactionRequest request,
88 final Consumer<Response<?, ?>> callback, final long enqueuedTicks) {
89 commonModifyTransactionRequest(request, callback);
90 // FIXME: this should go through the enqueueRequest() path
94 private static void commonModifyTransactionRequest(final ModifyTransactionRequest request,
95 final Consumer<Response<?, ?>> callback) {
96 Verify.verify(request.getModifications().isEmpty());
98 final PersistenceProtocol protocol = request.getPersistenceProtocol().get();
99 Verify.verify(protocol == PersistenceProtocol.ABORT);