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 java.io.IOException;
021import java.net.InetSocketAddress;
022import java.nio.channels.SocketChannel;
023import java.util.List;
024import org.apache.hadoop.conf.Configuration;
025import org.apache.hadoop.hbase.DoNotRetryIOException;
026import org.apache.hadoop.hbase.HBaseClassTestRule;
027import org.apache.hadoop.hbase.Server;
028import org.apache.hadoop.hbase.codec.Codec;
029import org.apache.hadoop.hbase.nio.ByteBuff;
030import org.apache.hadoop.hbase.testclassification.MediumTests;
031import org.apache.hadoop.hbase.testclassification.RPCTests;
032import org.junit.ClassRule;
033import org.junit.experimental.categories.Category;
034
035@Category({ RPCTests.class, MediumTests.class })
036public class TestBlockingIPC extends AbstractTestIPC {
037
038  @ClassRule
039  public static final HBaseClassTestRule CLASS_RULE =
040    HBaseClassTestRule.forClass(TestBlockingIPC.class);
041
042  @Override
043  protected RpcServer createRpcServer(String name,
044    List<RpcServer.BlockingServiceAndInterface> services, InetSocketAddress bindAddress,
045    Configuration conf, RpcScheduler scheduler) throws IOException {
046    return RpcServerFactory.createRpcServer(null, name, services, bindAddress, conf, scheduler);
047  }
048
049  @Override
050  protected BlockingRpcClient createRpcClientNoCodec(Configuration conf) {
051    return new BlockingRpcClient(conf) {
052      @Override
053      protected Codec getCodec() {
054        return null;
055      }
056    };
057  }
058
059  @Override
060  protected BlockingRpcClient createRpcClient(Configuration conf) {
061    return new BlockingRpcClient(conf);
062  }
063
064  @Override
065  protected BlockingRpcClient createRpcClientRTEDuringConnectionSetup(Configuration conf)
066    throws IOException {
067    return new BlockingRpcClient(conf) {
068
069      @Override
070      protected boolean isTcpNoDelay() {
071        throw new RuntimeException("Injected fault");
072      }
073    };
074  }
075
076  private static class TestFailingRpcServer extends SimpleRpcServer {
077
078    TestFailingRpcServer(Server server, String name,
079      List<RpcServer.BlockingServiceAndInterface> services, InetSocketAddress bindAddress,
080      Configuration conf, RpcScheduler scheduler) throws IOException {
081      super(server, name, services, bindAddress, conf, scheduler, true);
082    }
083
084    final class FailingConnection extends SimpleServerRpcConnection {
085      private FailingConnection(TestFailingRpcServer rpcServer, SocketChannel channel,
086        long lastContact) {
087        super(rpcServer, channel, lastContact);
088      }
089
090      @Override
091      public void processRequest(ByteBuff buf) throws IOException, InterruptedException {
092        // this will throw exception after the connection header is read, and an RPC is sent
093        // from client
094        throw new DoNotRetryIOException("Failing for test");
095      }
096    }
097
098    @Override
099    protected SimpleServerRpcConnection getConnection(SocketChannel channel, long time) {
100      return new FailingConnection(this, channel, time);
101    }
102  }
103
104  @Override
105  protected RpcServer createTestFailingRpcServer(String name,
106    List<RpcServer.BlockingServiceAndInterface> services, InetSocketAddress bindAddress,
107    Configuration conf, RpcScheduler scheduler) throws IOException {
108    return new TestFailingRpcServer(null, name, services, bindAddress, conf, scheduler);
109  }
110}