001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.client;
019
020import java.io.IOException;
021import java.util.concurrent.CompletableFuture;
022import org.apache.hadoop.conf.Configuration;
023import org.apache.hadoop.hbase.DoNotRetryIOException;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.HBaseConfiguration;
026import org.apache.hadoop.hbase.RegionLocations;
027import org.apache.hadoop.hbase.security.User;
028import org.apache.hadoop.hbase.security.UserProvider;
029import org.apache.hadoop.hbase.testclassification.ClientTests;
030import org.apache.hadoop.hbase.testclassification.SmallTests;
031import org.apache.hadoop.hbase.util.FutureUtils;
032import org.junit.BeforeClass;
033import org.junit.ClassRule;
034import org.junit.Test;
035import org.junit.experimental.categories.Category;
036
037@Category({ ClientTests.class, SmallTests.class })
038public class TestAsyncMetaRegionLocatorFailFast {
039
040  @ClassRule
041  public static final HBaseClassTestRule CLASS_RULE =
042    HBaseClassTestRule.forClass(TestAsyncMetaRegionLocatorFailFast.class);
043
044  private static Configuration CONF = HBaseConfiguration.create();
045
046  private static AsyncMetaRegionLocator LOCATOR;
047
048  private static final class FaultyConnectionRegistry extends DoNothingConnectionRegistry {
049
050    public FaultyConnectionRegistry(Configuration conf, User user) {
051      super(conf, user);
052    }
053
054    @Override
055    public CompletableFuture<RegionLocations> getMetaRegionLocations() {
056      return FutureUtils.failedFuture(new DoNotRetryRegionException("inject error"));
057    }
058  }
059
060  @BeforeClass
061  public static void setUp() throws IOException {
062    LOCATOR = new AsyncMetaRegionLocator(
063      new FaultyConnectionRegistry(CONF, UserProvider.instantiate(CONF).getCurrent()));
064  }
065
066  @Test(expected = DoNotRetryIOException.class)
067  public void test() throws IOException {
068    FutureUtils.get(LOCATOR.getRegionLocations(RegionInfo.DEFAULT_REPLICA_ID, false));
069  }
070}