content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.datastax.oss.driver.core.connection;
  
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_KEEP_ALIVE;
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_LINGER_INTERVAL;
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_RECEIVE_BUFFER_SIZE;
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_REUSE_ADDRESS;
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_SEND_BUFFER_SIZE;
  import static com.datastax.oss.driver.api.core.config.DefaultDriverOption.SOCKET_TCP_NODELAY;
  import static org.assertj.core.api.Assertions.assertThat;
  
  import com.datastax.oss.driver.api.core.CqlSession;
  import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
  import com.datastax.oss.driver.api.core.config.DriverConfigLoader;
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.api.core.session.Session;
  import com.datastax.oss.driver.api.testinfra.session.SessionRule;
  import com.datastax.oss.driver.api.testinfra.session.SessionUtils;
  import com.datastax.oss.driver.api.testinfra.simulacron.SimulacronRule;
  import com.datastax.oss.driver.categories.ParallelizableTests;
  import com.datastax.oss.driver.internal.core.channel.DriverChannel;
  import com.datastax.oss.driver.internal.core.session.DefaultSession;
  import com.datastax.oss.driver.internal.core.session.SessionWrapper;
  import com.datastax.oss.simulacron.common.cluster.ClusterSpec;
  import io.netty.channel.FixedRecvByteBufAllocator;
  import io.netty.channel.RecvByteBufAllocator;
  import io.netty.channel.socket.SocketChannelConfig;
  import org.junit.ClassRule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  import org.junit.rules.RuleChain;
  import org.junit.rules.TestRule;
  
  @Category(ParallelizableTests.class)
  public class ChannelSocketOptionsIT {
  
    private static final SimulacronRule SIMULACRON_RULE =
        new SimulacronRule(ClusterSpec.builder().withNodes(1));
  
    private static DriverConfigLoader loader =
        SessionUtils.configLoaderBuilder()
            .withBoolean(DefaultDriverOption.SOCKET_TCP_NODELAY, true)
            .withBoolean(DefaultDriverOption.SOCKET_KEEP_ALIVE, false)
            .withBoolean(DefaultDriverOption.SOCKET_REUSE_ADDRESS, false)
            .withInt(DefaultDriverOption.SOCKET_LINGER_INTERVAL, 10)
            .withInt(DefaultDriverOption.SOCKET_RECEIVE_BUFFER_SIZE, 123456)
            .withInt(DefaultDriverOption.SOCKET_SEND_BUFFER_SIZE, 123456)
            .build();
  
    private static final SessionRule<CqlSession> SESSION_RULE =
        SessionRule.builder(SIMULACRON_RULE).withConfigLoader(loader).build();
  
    @ClassRule
    public static final TestRule CHAIN = RuleChain.outerRule(SIMULACRON_RULE).around(SESSION_RULE);
  
    @Test
    public void should_report_socket_options() {
      Session session = SESSION_RULE.session();
      DriverExecutionProfile config = session.getContext().getConfig().getDefaultProfile();
      assertThat(config.getBoolean(SOCKET_TCP_NODELAY)).isTrue();
      assertThat(config.getBoolean(SOCKET_KEEP_ALIVE)).isFalse();
      assertThat(config.getBoolean(SOCKET_REUSE_ADDRESS)).isFalse();
      assertThat(config.getInt(SOCKET_LINGER_INTERVAL)).isEqualTo(10);
      assertThat(config.getInt(SOCKET_RECEIVE_BUFFER_SIZE)).isEqualTo(123456);
      assertThat(config.getInt(SOCKET_SEND_BUFFER_SIZE)).isEqualTo(123456);
      Node node = session.getMetadata().getNodes().values().iterator().next();
      if (session instanceof SessionWrapper) {
        session = ((SessionWrapper) session).getDelegate();
      }
      DriverChannel channel = ((DefaultSession) session).getChannel(node, "test");
      assertThat(channel).isNotNull();
      assertThat(channel.config()).isInstanceOf(SocketChannelConfig.class);
      SocketChannelConfig socketConfig = (SocketChannelConfig) channel.config();
      assertThat(socketConfig.isTcpNoDelay()).isTrue();
      assertThat(socketConfig.isKeepAlive()).isFalse();
      assertThat(socketConfig.isReuseAddress()).isFalse();
      assertThat(socketConfig.getSoLinger()).isEqualTo(10);
      RecvByteBufAllocator allocator = socketConfig.getRecvByteBufAllocator();
      assertThat(allocator).isInstanceOf(FixedRecvByteBufAllocator.class);
      assertThat(allocator.newHandle().guess()).isEqualTo(123456);
      // cannot assert around SO_RCVBUF and SO_SNDBUF, such values are just hints
    }
  }
  