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 static org.junit.Assert.assertTrue;
021
022import java.io.IOException;
023import org.apache.hadoop.conf.Configuration;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.HBaseConfiguration;
026import org.apache.hadoop.hbase.TableName;
027import org.apache.hadoop.hbase.ipc.RpcControllerFactory;
028import org.apache.hadoop.hbase.testclassification.ClientTests;
029import org.apache.hadoop.hbase.testclassification.SmallTests;
030import org.junit.ClassRule;
031import org.junit.Rule;
032import org.junit.Test;
033import org.junit.experimental.categories.Category;
034import org.junit.rules.TestName;
035
036@Category({SmallTests.class, ClientTests.class})
037public class TestBufferedMutator {
038
039  @ClassRule
040  public static final HBaseClassTestRule CLASS_RULE =
041      HBaseClassTestRule.forClass(TestBufferedMutator.class);
042
043  @Rule
044  public TestName name = new TestName();
045
046  /**
047   * My BufferedMutator.
048   * Just to prove that I can insert a BM other than default.
049   */
050  public static class MyBufferedMutator extends BufferedMutatorImpl {
051    MyBufferedMutator(ClusterConnection conn, RpcRetryingCallerFactory rpcCallerFactory,
052        RpcControllerFactory rpcFactory, BufferedMutatorParams params) {
053      super(conn, rpcCallerFactory, rpcFactory, params);
054    }
055  }
056
057  @Test
058  public void testAlternateBufferedMutatorImpl() throws IOException {
059    BufferedMutatorParams params =  new BufferedMutatorParams(TableName.valueOf(name.getMethodName()));
060    Configuration conf = HBaseConfiguration.create();
061    conf.set(AsyncRegistryFactory.REGISTRY_IMPL_CONF_KEY, DoNothingAsyncRegistry.class.getName());
062    try (Connection connection = ConnectionFactory.createConnection(conf)) {
063      BufferedMutator bm = connection.getBufferedMutator(params);
064      // Assert we get default BM if nothing specified.
065      assertTrue(bm instanceof BufferedMutatorImpl);
066      // Now try and set my own BM implementation.
067      params.implementationClassName(MyBufferedMutator.class.getName());
068      bm = connection.getBufferedMutator(params);
069      assertTrue(bm instanceof MyBufferedMutator);
070    }
071    // Now try creating a Connection after setting an alterate BufferedMutator into
072    // the configuration and confirm we get what was expected.
073    conf.set(BufferedMutator.CLASSNAME_KEY, MyBufferedMutator.class.getName());
074    try (Connection connection = ConnectionFactory.createConnection(conf)) {
075      BufferedMutator bm = connection.getBufferedMutator(params);
076      assertTrue(bm instanceof MyBufferedMutator);
077    }
078  }
079}