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1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.mapreduce;
20  
21  import org.apache.hadoop.hbase.HBaseInterfaceAudience;
22  import org.apache.hadoop.hbase.classification.InterfaceAudience;
23  import org.apache.hadoop.hbase.classification.InterfaceStability;
24  import org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication;
25  import org.apache.hadoop.util.ProgramDriver;
26  
27  /**
28   * Driver for hbase mapreduce jobs. Select which to run by passing
29   * name of job to this main.
30   */
31  @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)
32  @InterfaceStability.Stable
33  public class Driver {
34    /**
35     * @param args
36     * @throws Throwable
37     */
38    public static void main(String[] args) throws Throwable {
39      ProgramDriver pgd = new ProgramDriver();
40      pgd.addClass(RowCounter.NAME, RowCounter.class,
41        "Count rows in HBase table");
42      pgd.addClass(CellCounter.NAME, CellCounter.class,
43        "Count cells in HBase table");
44      pgd.addClass(Export.NAME, Export.class, "Write table data to HDFS.");
45      pgd.addClass(Import.NAME, Import.class, "Import data written by Export.");
46      pgd.addClass(ImportTsv.NAME, ImportTsv.class, "Import data in TSV format.");
47      pgd.addClass(LoadIncrementalHFiles.NAME, LoadIncrementalHFiles.class,
48                   "Complete a bulk data load.");
49      pgd.addClass(CopyTable.NAME, CopyTable.class,
50          "Export a table from local cluster to peer cluster");
51      pgd.addClass(VerifyReplication.NAME, VerifyReplication.class, "Compare" +
52          " the data from tables in two different clusters. WARNING: It" +
53          " doesn't work for incrementColumnValues'd cells since the" +
54          " timestamp is changed after being appended to the log.");
55      ProgramDriver.class.getMethod("driver", new Class [] {String[].class}).
56        invoke(pgd, new Object[]{args});
57    }
58  }