1 /** 2 * Copyright 2010 The Apache Software Foundation 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 package org.apache.hadoop.hbase.master; 21 22 import java.io.IOException; 23 24 import org.apache.hadoop.hbase.TableNotDisabledException; 25 import org.apache.hadoop.hbase.TableNotFoundException; 26 import org.apache.hadoop.hbase.executor.ExecutorService; 27 28 /** 29 * Services Master supplies 30 */ 31 public interface MasterServices { 32 /** 33 * @return Master's instance of the {@link AssignmentManager} 34 */ 35 public AssignmentManager getAssignmentManager(); 36 37 /** 38 * @return Master's filesystem {@link MasterFileSystem} utility class. 39 */ 40 public MasterFileSystem getMasterFileSystem(); 41 42 /** 43 * @return Master's {@link ServerManager} instance. 44 */ 45 public ServerManager getServerManager(); 46 47 /** 48 * @return Master's instance of {@link ExecutorService} 49 */ 50 public ExecutorService getExecutorService(); 51 52 /** 53 * Check table is modifiable; i.e. exists and is offline. 54 * @param tableName Name of table to check. 55 * @throws TableNotDisabledException 56 * @throws TableNotFoundException 57 */ 58 public void checkTableModifiable(final byte [] tableName) throws IOException; 59 }