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.HTableDescriptor;
25 import org.apache.hadoop.hbase.Server;
26 import org.apache.hadoop.hbase.TableDescriptors;
27 import org.apache.hadoop.hbase.TableNotDisabledException;
28 import org.apache.hadoop.hbase.TableNotFoundException;
29 import org.apache.hadoop.hbase.executor.ExecutorService;
30
31 /**
32 * Services Master supplies
33 */
34 public interface MasterServices extends Server {
35 /**
36 * @return Master's instance of the {@link AssignmentManager}
37 */
38 public AssignmentManager getAssignmentManager();
39
40 /**
41 * @return Master's filesystem {@link MasterFileSystem} utility class.
42 */
43 public MasterFileSystem getMasterFileSystem();
44
45 /**
46 * @return Master's {@link ServerManager} instance.
47 */
48 public ServerManager getServerManager();
49
50 /**
51 * @return Master's instance of {@link ExecutorService}
52 */
53 public ExecutorService getExecutorService();
54
55 /**
56 * Check table is modifiable; i.e. exists and is offline.
57 * @param tableName Name of table to check.
58 * @throws TableNotDisabledException
59 * @throws TableNotFoundException
60 */
61 public void checkTableModifiable(final byte [] tableName) throws IOException;
62
63 /**
64 * Create a table using the given table definition.
65 * @param desc The table definition
66 * @param splitKeys Starting row keys for the initial table regions. If null
67 * a single region is created.
68 */
69 public void createTable(HTableDescriptor desc, byte [][] splitKeys)
70 throws IOException;
71
72 /**
73 * @return Return table descriptors implementation.
74 */
75 public TableDescriptors getTableDescriptors();
76 }