| /** |
| * |
| * 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; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.classification.InterfaceStability; |
| import org.apache.hadoop.hbase.client.ClusterConnection; |
| import org.apache.hadoop.hbase.client.Connection; |
| import org.apache.hadoop.hbase.zookeeper.MetaTableLocator; |
| import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher; |
| |
| /** |
| * Defines the set of shared functions implemented by HBase servers (Masters |
| * and RegionServers). |
| */ |
| @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC) |
| @InterfaceStability.Evolving |
| public interface Server extends Abortable, Stoppable { |
| /** |
| * Gets the configuration object for this server. |
| */ |
| Configuration getConfiguration(); |
| |
| /** |
| * Gets the ZooKeeper instance for this server. |
| */ |
| ZooKeeperWatcher getZooKeeper(); |
| |
| /** |
| * Returns a reference to the servers' connection. |
| * |
| * Important note: this method returns a reference to Connection which is managed |
| * by Server itself, so callers must NOT attempt to close connection obtained. |
| */ |
| Connection getConnection(); |
| |
| /** |
| * Returns a reference to the servers' cluster connection. Prefer {@link #getConnection()}. |
| * |
| * Important note: this method returns a reference to Connection which is managed |
| * by Server itself, so callers must NOT attempt to close connection obtained. |
| */ |
| ClusterConnection getClusterConnection(); |
| |
| /** |
| * Returns instance of {@link org.apache.hadoop.hbase.zookeeper.MetaTableLocator} |
| * running inside this server. This MetaServerLocator is started and stopped by server, clients |
| * shouldn't manage it's lifecycle. |
| * @return instance of {@link MetaTableLocator} associated with this server. |
| */ |
| MetaTableLocator getMetaTableLocator(); |
| |
| /** |
| * @return The unique server name for this server. |
| */ |
| ServerName getServerName(); |
| |
| /** |
| * Get CoordinatedStateManager instance for this server. |
| */ |
| CoordinatedStateManager getCoordinatedStateManager(); |
| |
| /** |
| * @return The {@link ChoreService} instance for this server |
| */ |
| ChoreService getChoreService(); |
| } |