*/
package org.opendaylight.protocol.framework;
+import com.google.common.base.Preconditions;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
+import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
+import io.netty.channel.ServerChannel;
+import io.netty.channel.local.LocalServerChannel;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.GlobalEventExecutor;
import io.netty.util.concurrent.Promise;
-
import java.io.Closeable;
import java.net.InetSocketAddress;
-
+import java.net.SocketAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import com.google.common.base.Preconditions;
-
/**
* Dispatcher class for creating servers and clients. The idea is to first create servers and clients and the run the
* start method that will handle sockets in different thread.
*/
public abstract class AbstractDispatcher<S extends ProtocolSession<?>, L extends SessionListener<?, ?, ?>> implements Closeable {
- protected interface PipelineInitializer<S extends ProtocolSession<?>> {
+
+ protected interface ChannelPipelineInitializer<CH extends Channel, S extends ProtocolSession<?>> {
/**
* Initializes channel by specifying the handlers in its pipeline. Handlers are protocol specific, therefore this
* method needs to be implemented in protocol specific Dispatchers.
* @param channel whose pipeline should be defined, also to be passed to {@link SessionNegotiatorFactory}
* @param promise to be passed to {@link SessionNegotiatorFactory}
*/
- void initializeChannel(SocketChannel channel, Promise<S> promise);
+ void initializeChannel(CH channel, Promise<S> promise);
+ }
+
+ protected interface PipelineInitializer<S extends ProtocolSession<?>> extends ChannelPipelineInitializer<SocketChannel, S> {
+
}
* @return ChannelFuture representing the binding process
*/
protected ChannelFuture createServer(final InetSocketAddress address, final PipelineInitializer<S> initializer) {
+ return createServer(address, NioServerSocketChannel.class, initializer);
+ }
+
+ /**
+ * Creates server. Each server needs factories to pass their instances to client sessions.
+ *
+ * @param address address to which the server should be bound
+ * @param channelClass The {@link Class} which is used to create {@link Channel} instances from.
+ * @param initializer instance of PipelineInitializer used to initialize the channel pipeline
+ *
+ * @return ChannelFuture representing the binding process
+ */
+ protected <CH extends Channel> ChannelFuture createServer(SocketAddress address, Class<? extends ServerChannel> channelClass,
+ final ChannelPipelineInitializer<CH, S> initializer) {
final ServerBootstrap b = new ServerBootstrap();
- b.childHandler(new ChannelInitializer<SocketChannel>() {
+ b.childHandler(new ChannelInitializer<CH>() {
@Override
- protected void initChannel(final SocketChannel ch) {
+ protected void initChannel(final CH ch) {
initializer.initializeChannel(ch, new DefaultPromise<S>(executor));
}
});
b.option(ChannelOption.SO_BACKLOG, 128);
- b.childOption(ChannelOption.SO_KEEPALIVE, true);
+ if (LocalServerChannel.class.equals(channelClass) == false) {
+ // makes no sense for LocalServer and produces warning
+ b.childOption(ChannelOption.SO_KEEPALIVE, true);
+ }
customizeBootstrap(b);
if (b.group() == null) {
b.group(bossGroup, workerGroup);
}
try {
- b.channel(NioServerSocketChannel.class);
+ b.channel(channelClass);
} catch (IllegalStateException e) {
+ // FIXME: if this is ok, document why
LOG.trace("Not overriding channelFactory on bootstrap {}", b, e);
}