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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.client;
20  
21  import org.apache.hadoop.hbase.*;
22  import org.apache.hadoop.hbase.util.Bytes;
23  import org.junit.AfterClass;
24  import org.junit.BeforeClass;
25  import org.junit.Test;
26  import org.junit.experimental.categories.Category;
27  
28  import static org.junit.Assert.assertTrue;
29  
30  @Category(MediumTests.class)
31  public class TestPutWithDelete {
32    private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
33  
34    /**
35     * @throws java.lang.Exception
36     */
37    @BeforeClass
38    public static void setUpBeforeClass() throws Exception {
39      TEST_UTIL.startMiniCluster();
40    }
41  
42    /**
43     * @throws java.lang.Exception
44     */
45    @AfterClass
46    public static void tearDownAfterClass() throws Exception {
47      TEST_UTIL.shutdownMiniCluster();
48    }
49  
50    @Test
51    public void testHbasePutDeleteCell() throws Exception {
52      final TableName tableName = TableName.valueOf("TestPutWithDelete");
53      final byte[] rowKey = Bytes.toBytes("12345");
54      final byte[] family = Bytes.toBytes("cf");
55      HTable table = TEST_UTIL.createTable(tableName, family);
56      TEST_UTIL.waitTableAvailable(tableName.getName(), 5000);
57      try {
58        // put one row
59        Put put = new Put(rowKey);
60        put.add(family, Bytes.toBytes("A"), Bytes.toBytes("a"));
61        put.add(family, Bytes.toBytes("B"), Bytes.toBytes("b"));
62        put.add(family, Bytes.toBytes("C"), Bytes.toBytes("c"));
63        table.put(put);
64        // get row back and assert the values
65        Get get = new Get(rowKey);
66        Result result = table.get(get);
67        assertTrue("Column A value should be a",
68            Bytes.toString(result.getValue(family, Bytes.toBytes("A"))).equals("a"));
69        assertTrue("Column B value should be b",
70            Bytes.toString(result.getValue(family, Bytes.toBytes("B"))).equals("b"));
71        assertTrue("Column C value should be c",
72            Bytes.toString(result.getValue(family, Bytes.toBytes("C"))).equals("c"));
73        // put the same row again with C column deleted
74        put = new Put(rowKey);
75        put.add(family, Bytes.toBytes("A"), Bytes.toBytes("a"));
76        put.add(family, Bytes.toBytes("B"), Bytes.toBytes("b"));
77        KeyValue marker = new KeyValue(rowKey, family, Bytes.toBytes("C"),
78            HConstants.LATEST_TIMESTAMP, KeyValue.Type.DeleteColumn);
79        put.add(marker);
80        table.put(put);
81        // get row back and assert the values
82        get = new Get(rowKey);
83        result = table.get(get);
84        assertTrue("Column A value should be a",
85            Bytes.toString(result.getValue(family, Bytes.toBytes("A"))).equals("a"));
86        assertTrue("Column B value should be b",
87            Bytes.toString(result.getValue(family, Bytes.toBytes("B"))).equals("b"));
88        assertTrue("Column C should not exist",
89            result.getValue(family, Bytes.toBytes("C")) == null);
90      } finally {
91        table.close();
92      }
93    }
94  }
95  
96