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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;
20  
21  import static org.junit.Assert.assertFalse;
22  import static org.junit.Assert.assertTrue;
23  
24  import java.io.IOException;
25  
26  import org.apache.hadoop.fs.FileSystem;
27  import org.apache.hadoop.fs.Path;
28  import org.apache.hadoop.hbase.testclassification.SmallTests;
29  import org.apache.hadoop.hbase.util.FSTableDescriptors;
30  import org.junit.*;
31  import org.junit.experimental.categories.Category;
32  
33  @Category(SmallTests.class)
34  public class TestFSTableDescriptorForceCreation {
35    private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
36  
37    @Test
38    public void testShouldCreateNewTableDescriptorIfForcefulCreationIsFalse()
39        throws IOException {
40      final String name = "newTable2";
41      FileSystem fs = FileSystem.get(UTIL.getConfiguration());
42      Path rootdir = new Path(UTIL.getDataTestDir(), name);
43      FSTableDescriptors fstd = new FSTableDescriptors(UTIL.getConfiguration(), fs, rootdir);
44      HTableDescriptor htd = new HTableDescriptor(TableName.valueOf(name));
45  
46      assertTrue("Should create new table descriptor", fstd.createTableDescriptor(htd, false));
47    }
48  
49    @Test
50    public void testShouldNotCreateTheSameTableDescriptorIfForcefulCreationIsFalse()
51        throws IOException {
52      final String name = "testAlreadyExists";
53      FileSystem fs = FileSystem.get(UTIL.getConfiguration());
54      // Cleanup old tests if any detritus laying around.
55      Path rootdir = new Path(UTIL.getDataTestDir(), name);
56      FSTableDescriptors fstd = new FSTableDescriptors(UTIL.getConfiguration(), fs, rootdir);
57      HTableDescriptor htd = new HTableDescriptor(name);
58      fstd.add(htd);
59      assertFalse("Should not create new table descriptor", fstd.createTableDescriptor(htd, false));
60    }
61  
62    @Test
63    public void testShouldAllowForcefulCreationOfAlreadyExistingTableDescriptor()
64        throws Exception {
65      final String name = "createNewTableNew2";
66      FileSystem fs = FileSystem.get(UTIL.getConfiguration());
67      Path rootdir = new Path(UTIL.getDataTestDir(), name);
68      FSTableDescriptors fstd = new FSTableDescriptors(UTIL.getConfiguration(), fs, rootdir);
69      HTableDescriptor htd = new HTableDescriptor(TableName.valueOf(name));
70      fstd.createTableDescriptor(htd, false);
71      assertTrue("Should create new table descriptor",
72          fstd.createTableDescriptor(htd, true));
73    }
74  
75  }
76