/*
* Copyright (C) 2012-2015 DataStax Inc.
*
* Licensed 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.driver.core;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.util.HashedWheelTimer;
import io.netty.util.Timer;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.testng.annotations.Test;
import java.util.concurrent.ThreadFactory;
import static com.datastax.driver.core.CreateCCM.TestMode.PER_METHOD;
import static org.mockito.Answers.CALLS_REAL_METHODS;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.*;
@CreateCCM(PER_METHOD)
@CCMConfig(createCluster = false)
public class NettyOptionsTest extends CCMTestsSupport {
@Test(groups = "short")
public void should_invoke_netty_options_hooks_single_node() throws Exception {
should_invoke_netty_options_hooks(1, 1);
}
@CCMConfig(numberOfNodes = 3)
@Test(groups = "short")
public void should_invoke_netty_options_hooks_multi_node() throws Exception {
should_invoke_netty_options_hooks(3, 4);
}
private void should_invoke_netty_options_hooks(int hosts, int coreConnections) throws Exception {
NettyOptions nettyOptions = mock(NettyOptions.class, CALLS_REAL_METHODS.get());
EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
Timer timer = new HashedWheelTimer();
doReturn(eventLoopGroup).when(nettyOptions).eventLoopGroup(any(ThreadFactory.class));
doReturn(timer).when(nettyOptions).timer(any(ThreadFactory.class));
final ChannelHandler handler = mock(ChannelHandler.class);
doAnswer(new Answer() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
SocketChannel channel = (SocketChannel) invocation.getArguments()[0];
channel.pipeline().addLast("test-handler", handler);
return null;
}
}).when(nettyOptions).afterChannelInitialized(any(SocketChannel.class));
Cluster cluster = register(Cluster.builder()
.addContactPoints(getContactPoints().get(0))
.withPort(ccm().getBinaryPort())
.withPoolingOptions(new PoolingOptions()
.setConnectionsPerHost(HostDistance.LOCAL, coreConnections, coreConnections)
)
.withNettyOptions(nettyOptions)
.build());
// when
cluster.connect();// force session creation to populate pools
int expectedNumberOfCalls = TestUtils.numberOfLocalCoreConnections(cluster) * hosts + 1;
// If the driver supports a more recent protocol version than C*, the negotiation at startup
// will open an additional connection for each protocol version tried.
ProtocolVersion version = ProtocolVersion.NEWEST_SUPPORTED;
ProtocolVersion usedVersion = ccm().getProtocolVersion();
while (version != usedVersion && version != null) {
version = version.getLowerSupported();
expectedNumberOfCalls++;
}
cluster.close();
// then
verify(nettyOptions, times(1)).eventLoopGroup(any(ThreadFactory.class));
verify(nettyOptions, times(1)).channelClass();
verify(nettyOptions, times(1)).timer(any(ThreadFactory.class));
// per-connection hooks will be called coreConnections * hosts + 1 times:
// the extra call is for the control connection
verify(nettyOptions, times(expectedNumberOfCalls)).afterBootstrapInitialized(any(Bootstrap.class));
verify(nettyOptions, times(expectedNumberOfCalls)).afterChannelInitialized(any(SocketChannel.class));
verify(handler, times(expectedNumberOfCalls)).handlerAdded(any(ChannelHandlerContext.class));
verify(handler, times(expectedNumberOfCalls)).handlerRemoved(any(ChannelHandlerContext.class));
verify(nettyOptions, times(1)).onClusterClose(eventLoopGroup);
verify(nettyOptions, times(1)).onClusterClose(timer);
verifyNoMoreInteractions(nettyOptions);
}
}