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.ipc;
019
020import static org.hamcrest.CoreMatchers.instanceOf;
021import static org.hamcrest.MatcherAssert.assertThat;
022import static org.junit.Assert.assertThrows;
023import static org.junit.Assert.assertTrue;
024import static org.junit.Assert.fail;
025
026import java.io.IOException;
027import java.lang.reflect.InvocationTargetException;
028import java.lang.reflect.Method;
029import java.lang.reflect.Modifier;
030import org.apache.hadoop.hbase.HBaseClassTestRule;
031import org.apache.hadoop.hbase.HBaseConfiguration;
032import org.apache.hadoop.hbase.net.Address;
033import org.apache.hadoop.hbase.security.User;
034import org.apache.hadoop.hbase.testclassification.ClientTests;
035import org.apache.hadoop.hbase.testclassification.SmallTests;
036import org.junit.AfterClass;
037import org.junit.BeforeClass;
038import org.junit.ClassRule;
039import org.junit.Test;
040import org.junit.experimental.categories.Category;
041import org.slf4j.Logger;
042import org.slf4j.LoggerFactory;
043
044import org.apache.hbase.thirdparty.com.google.common.io.Closeables;
045
046@Category({ ClientTests.class, SmallTests.class })
047public class TestNettyRpcConnection {
048
049  @ClassRule
050  public static final HBaseClassTestRule CLASS_RULE =
051    HBaseClassTestRule.forClass(TestNettyRpcConnection.class);
052
053  private static final Logger LOG = LoggerFactory.getLogger(TestNettyRpcConnection.class);
054
055  private static NettyRpcClient CLIENT;
056
057  private static NettyRpcConnection CONN;
058
059  @BeforeClass
060  public static void setUp() throws IOException {
061    CLIENT = new NettyRpcClient(HBaseConfiguration.create());
062    CONN = new NettyRpcConnection(CLIENT,
063      new ConnectionId(User.getCurrent(), "test", Address.fromParts("localhost", 1234)));
064  }
065
066  @AfterClass
067  public static void tearDown() throws IOException {
068    Closeables.close(CLIENT, true);
069  }
070
071  @Test
072  public void testPrivateMethodExecutedInEventLoop() throws IllegalAccessException {
073    assertThrows(AssertionError.class, () -> {
074      assertTrue(false);
075    });
076    for (Method method : NettyRpcConnection.class.getDeclaredMethods()) {
077      if (Modifier.isPrivate(method.getModifiers()) && !method.getName().contains("$")) {
078        LOG.info("checking {}", method);
079        method.setAccessible(true);
080        // all private methods should be called inside the event loop thread, so calling it from
081        // this thread will cause the "assert eventLoop.inEventLoop();" to fail
082        try {
083          // now there is no primitive parameters for the private methods so let's pass null
084          method.invoke(CONN, new Object[method.getParameterCount()]);
085          fail("should fail with AssertionError");
086        } catch (InvocationTargetException e) {
087          assertThat(e.getCause(), instanceOf(AssertionError.class));
088        }
089      }
090    }
091  }
092}