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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 static org.junit.Assert.*;
22  
23  import java.net.Inet6Address;
24  import java.net.InetAddress;
25  import java.net.UnknownHostException;
26  
27  import javax.naming.NamingException;
28  import org.apache.hadoop.hbase.testclassification.SmallTests;
29  import org.junit.Test;
30  import org.junit.experimental.categories.Category;
31  
32  @Category(SmallTests.class)
33  public class TestTableInputFormatBase {
34    @Test
35    public void testTableInputFormatBaseReverseDNSForIPv6()
36        throws UnknownHostException, NamingException {
37      String address = "ipv6.google.com";
38      String localhost = null;
39      InetAddress addr = null;
40      TableInputFormat inputFormat = new TableInputFormat();
41      try {
42        localhost = InetAddress.getByName(address).getCanonicalHostName();
43        addr = Inet6Address.getByName(address);
44      } catch (UnknownHostException e) {
45        // google.com is down, we can probably forgive this test.
46        return;
47      }
48      System.out.println("Should retrun the hostname for this host " +
49          localhost + " addr : " + addr);
50      String actualHostName = inputFormat.reverseDNS(addr);
51      assertEquals("Should retrun the hostname for this host. Expected : " +
52          localhost + " Actual : " + actualHostName, localhost, actualHostName);
53    }
54  }