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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.hadoop.hbase.regionserver.wal;
19  
20  import static org.junit.Assert.assertEquals;
21  import static org.junit.Assert.assertTrue;
22  
23  import org.apache.hadoop.conf.Configuration;
24  import org.apache.hadoop.hbase.HConstants;
25  import org.apache.hadoop.hbase.SmallTests;
26  import org.junit.Test;
27  import org.junit.experimental.categories.Category;
28  
29  /**
30   * Test that we can create, load, setup our own custom codec
31   */
32  @Category(SmallTests.class)
33  public class TestCustomWALCellCodec {
34  
35    public static class CustomWALCellCodec extends WALCellCodec {
36      public Configuration conf;
37      public CompressionContext context;
38  
39      public CustomWALCellCodec(Configuration conf, CompressionContext compression) {
40        super(conf, compression);
41        this.conf = conf;
42        this.context = compression;
43      }
44    }
45  
46    /**
47     * Test that a custom {@link WALCellCodec} will be completely setup when it is instantiated via
48     * {@link WALCellCodec}
49     * @throws Exception on failure
50     */
51    @Test
52    public void testCreatePreparesCodec() throws Exception {
53      Configuration conf = new Configuration(false);
54      conf.setClass(WALCellCodec.WAL_CELL_CODEC_CLASS_KEY, CustomWALCellCodec.class,
55        WALCellCodec.class);
56      CustomWALCellCodec codec = (CustomWALCellCodec) WALCellCodec.create(conf, null);
57      assertEquals("Custom codec didn't get initialized with the right configuration!", conf,
58        codec.conf);
59      assertEquals("Custom codec didn't get initialized with the right compression context!", null,
60        codec.context);
61    }
62  }