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.access.commands;
10 import com.google.common.annotations.Beta;
11 import org.opendaylight.controller.cluster.access.concepts.RequestException;
14 * A {@link RequestException} indicating that the backend has received a request referencing an unknown history. This
15 * typically happens when the linear history ID is newer than the highest observed {@link CreateLocalHistoryRequest}.
17 * @author Robert Varga
20 public final class UnknownHistoryException extends RequestException {
21 private static final long serialVersionUID = 1L;
23 public UnknownHistoryException(final Long lastSeenHistory) {
24 super("Last known history is " + historyToString(lastSeenHistory));
27 private static String historyToString(final Long history) {
28 return history == null ? "null" : Long.toUnsignedString(history.longValue());
32 public boolean isRetriable() {