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.mapred;
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.util.ProgramDriver;
25
26 import com.google.common.annotations.VisibleForTesting;
27
28 /**
29 * Driver for hbase mapreduce jobs. Select which to run by passing name of job
30 * to this main.
31 */
32 @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)
33 @InterfaceStability.Stable
34 public class Driver {
35
36 private static ProgramDriver pgd = new ProgramDriver();
37
38 @VisibleForTesting
39 static void setProgramDriver(ProgramDriver pgd0) {
40 pgd = pgd0;
41 }
42
43 /**
44 * @param args
45 * @throws Throwable
46 */
47 public static void main(String[] args) throws Throwable {
48 pgd.addClass(RowCounter.NAME, RowCounter.class, "Count rows in HBase table");
49 ProgramDriver.class.getMethod("driver", new Class[] { String[].class })
50 .invoke(pgd, new Object[] { args });
51 }
52 }