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1   /**
2    * Copyright 2008 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.mapreduce;
21  
22  import org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication;
23  import org.apache.hadoop.util.ProgramDriver;
24  
25  /**
26   * Driver for hbase mapreduce jobs. Select which to run by passing
27   * name of job to this main.
28   */
29  public class Driver {
30    /**
31     * @param args
32     * @throws Throwable
33     */
34    public static void main(String[] args) throws Throwable {
35      ProgramDriver pgd = new ProgramDriver();
36      pgd.addClass(RowCounter.NAME, RowCounter.class,
37        "Count rows in HBase table");
38      pgd.addClass(CellCounter.NAME, CellCounter.class,
39        "Count cells in HBase table");
40      pgd.addClass(Export.NAME, Export.class, "Write table data to HDFS.");
41      pgd.addClass(Import.NAME, Import.class, "Import data written by Export.");
42      pgd.addClass(ImportTsv.NAME, ImportTsv.class, "Import data in TSV format.");
43      pgd.addClass(LoadIncrementalHFiles.NAME, LoadIncrementalHFiles.class,
44                   "Complete a bulk data load.");
45      pgd.addClass(CopyTable.NAME, CopyTable.class,
46          "Export a table from local cluster to peer cluster");
47      pgd.addClass(VerifyReplication.NAME, VerifyReplication.class, "Compare" +
48          " the data from tables in two different clusters. WARNING: It" +
49          " doesn't work for incrementColumnValues'd cells since the" +
50          " timestamp is changed after being appended to the log.");
51      ProgramDriver.class.getMethod("driver", new Class [] {String[].class}).
52        invoke(pgd, new Object[]{args});
53    }
54  }