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.assertFalse;
021import static org.junit.Assert.assertTrue;
022
023import java.io.IOException;
024import org.apache.hadoop.hbase.HBaseClassTestRule;
025import org.apache.hadoop.hbase.HBaseTestingUtility;
026import org.apache.hadoop.hbase.HColumnDescriptor;
027import org.apache.hadoop.hbase.HTableDescriptor;
028import org.apache.hadoop.hbase.ServerName;
029import org.apache.hadoop.hbase.TableName;
030import org.apache.hadoop.hbase.regionserver.HRegionServer;
031import org.apache.hadoop.hbase.regionserver.RSRpcServices;
032import org.apache.hadoop.hbase.testclassification.ClientTests;
033import org.apache.hadoop.hbase.testclassification.MediumTests;
034import org.apache.hadoop.hbase.util.Bytes;
035import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
036import org.junit.AfterClass;
037import org.junit.BeforeClass;
038import org.junit.ClassRule;
039import org.junit.Rule;
040import org.junit.Test;
041import org.junit.experimental.categories.Category;
042import org.junit.rules.TestName;
043
044import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService;
045import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService;
046
047@Category({ MediumTests.class, ClientTests.class })
048public class TestShortCircuitConnection {
049
050  @ClassRule
051  public static final HBaseClassTestRule CLASS_RULE =
052    HBaseClassTestRule.forClass(TestShortCircuitConnection.class);
053
054  private final static HBaseTestingUtility UTIL = new HBaseTestingUtility();
055
056  @Rule
057  public TestName name = new TestName();
058
059  @BeforeClass
060  public static void setUpBeforeClass() throws Exception {
061    UTIL.startMiniCluster(1);
062  }
063
064  @AfterClass
065  public static void tearDownAfterClass() throws Exception {
066    UTIL.shutdownMiniCluster();
067  }
068
069  @Test
070  @SuppressWarnings("deprecation")
071  public void testShortCircuitConnection() throws IOException, InterruptedException {
072    final TableName tableName = TableName.valueOf(name.getMethodName());
073    HTableDescriptor htd = UTIL.createTableDescriptor(tableName);
074    HColumnDescriptor hcd = new HColumnDescriptor(Bytes.toBytes("cf"));
075    htd.addFamily(hcd);
076    UTIL.createTable(htd, null);
077    HRegionServer regionServer = UTIL.getRSForFirstRegionInTable(tableName);
078    ClusterConnection connection = regionServer.getClusterConnection();
079    Table tableIf = connection.getTable(tableName);
080    assertTrue(tableIf instanceof HTable);
081    HTable table = (HTable) tableIf;
082    assertTrue(table.getConnection() == connection);
083    AdminService.BlockingInterface admin = connection.getAdmin(regionServer.getServerName());
084    ClientService.BlockingInterface client = connection.getClient(regionServer.getServerName());
085    assertTrue(admin instanceof RSRpcServices);
086    assertTrue(
087      client instanceof ServerConnectionUtils.ShortCircuitingClusterConnection.ClientServiceBlockingInterfaceWrapper);
088    ServerName anotherSn = ServerName.valueOf(regionServer.getServerName().getAddress(),
089      EnvironmentEdgeManager.currentTime());
090    admin = connection.getAdmin(anotherSn);
091    client = connection.getClient(anotherSn);
092    assertFalse(admin instanceof RSRpcServices);
093    assertFalse(client instanceof RSRpcServices);
094    assertTrue(connection.getAdmin().getConnection() == connection);
095  }
096}