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