2 * Copyright (c) 2015 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.mdsal.eos.common.api;
10 import static java.util.Objects.requireNonNull;
12 import org.eclipse.jdt.annotation.NonNull;
13 import org.opendaylight.yangtools.concepts.Path;
16 * Thrown when a Candidate has already been registered for a given Entity. This could be due to a component doing a
17 * duplicate registration or two different components within the same process trying to register a Candidate.
19 public class CandidateAlreadyRegisteredException extends Exception {
20 private static final long serialVersionUID = 1L;
22 private final @NonNull GenericEntity<?> entity;
24 public <T extends Path<T>> CandidateAlreadyRegisteredException(@NonNull final GenericEntity<T> entity) {
25 super("Candidate has already been registered for " + entity);
26 this.entity = requireNonNull(entity, "entity should not be null");
30 * Gets the entity for which a Candidate has already been registered in the current process.
32 * @param <T> the instance identifier path type
36 @SuppressWarnings("unchecked")
37 public <T extends Path<T>> @NonNull GenericEntity<T> getEntity() {
38 return (GenericEntity<T>) entity;