| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hbase.replication; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseInterfaceAudience; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * ReplicationPeer manages enabled / disabled state for the peer. |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION) |
| public interface ReplicationPeer { |
| |
| /** |
| * State of the peer, whether it is enabled or not |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.REPLICATION) |
| enum PeerState { |
| ENABLED, |
| DISABLED |
| } |
| |
| /** |
| * Get the identifier of this peer |
| * @return string representation of the id |
| */ |
| String getId(); |
| |
| /** |
| * Returns the state of the peer by reading local cache. |
| * @return the enabled state |
| */ |
| PeerState getPeerState(); |
| |
| /** |
| * Returns the sync replication state of the peer by reading local cache. |
| * <p> |
| * If the peer is not a synchronous replication peer, a {@link SyncReplicationState#NONE} will be |
| * returned. |
| * @return the sync replication state |
| */ |
| SyncReplicationState getSyncReplicationState(); |
| |
| /** |
| * Test whether the peer is enabled. |
| * @return {@code true} if enabled, otherwise {@code false}. |
| */ |
| default boolean isPeerEnabled() { |
| return getPeerState() == PeerState.ENABLED; |
| } |
| |
| /** |
| * Get the peer config object |
| * @return the ReplicationPeerConfig for this peer |
| */ |
| ReplicationPeerConfig getPeerConfig(); |
| |
| /** |
| * Get the configuration object required to communicate with this peer |
| * @return configuration object |
| */ |
| Configuration getConfiguration(); |
| |
| /** |
| * Get replicable (table, cf-list) map of this peer |
| * @return the replicable (table, cf-list) map |
| */ |
| Map<TableName, List<String>> getTableCFs(); |
| |
| /** |
| * Get replicable namespace set of this peer |
| * @return the replicable namespaces set |
| */ |
| Set<String> getNamespaces(); |
| |
| /** |
| * Get the per node bandwidth upper limit for this peer |
| * @return the bandwidth upper limit |
| */ |
| long getPeerBandwidth(); |
| |
| /** |
| * Register a peer config listener to catch the peer config change event. |
| * @param listener listener to catch the peer config change event. |
| */ |
| void registerPeerConfigListener(ReplicationPeerConfigListener listener); |
| |
| /** |
| * @deprecated since 2.1.0 and will be removed in 4.0.0. Use |
| * {@link #registerPeerConfigListener(ReplicationPeerConfigListener)} instead. |
| * @see #registerPeerConfigListener(ReplicationPeerConfigListener) |
| * @see <a href="https://issues.apache.org/jira/browse/HBASE-10573">HBASE-19573</a> |
| */ |
| @Deprecated |
| default void trackPeerConfigChanges(ReplicationPeerConfigListener listener) { |
| registerPeerConfigListener(listener); |
| } |
| } |