hbase-server/src/test/java/org/apache/hadoop/hbase/constraint/CheckConfigurationConstraint.java

   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 }