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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.constraint;
19  
20  import org.apache.hadoop.conf.Configuration;
21  import org.apache.hadoop.hbase.client.Put;
22  
23  /**
24   * Test Constraint to check to make sure the configuration is set
25   */
26  public class CheckConfigurationConstraint extends BaseConstraint {
27  
28    private static String key = "testKey";
29    private static String value = "testValue";
30  
31    public static Configuration getConfiguration() {
32      Configuration conf = new Configuration(false);
33      conf.set(key, value);
34      return conf;
35    }
36  
37    @Override
38    public void check(Put p) {
39      // NOOP
40    }
41  
42    @Override
43    public void setConf(Configuration conf) {
44      super.setConf(conf);
45      if (conf != null) {
46        String val = conf.get(key);
47        if (val == null || !val.equals(value))
48          throw new IllegalArgumentException(
49              "Configuration was not passed correctly");
50        // and then check to make sure we got a fresh config by checking for a
51        // hadoop-based config value, and if we don't find it, its fine
52        if (conf.getRaw("fs.file.impl") != null)
53          throw new IllegalArgumentException(
54              "Configuration was created using 'new Configuration()', should be "
55                  + "done via 'new Configuration(false) to exclude defaut hadoop "
56                  + "configurations values.");
57      }
58    }
59  
60  }