/*
* JBoss, Home of Professional Open Source
* Copyright 2010 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.server.websocket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.StringWriter;
import java.net.InetSocketAddress;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import org.infinispan.Cache;
import org.infinispan.manager.CacheContainer;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.server.core.AbstractProtocolServer;
import org.infinispan.server.core.transport.CustomReplayingDecoder;
import org.infinispan.server.websocket.handlers.GetHandler;
import org.infinispan.server.websocket.handlers.NotifyHandler;
import org.infinispan.server.websocket.handlers.PutHandler;
import org.infinispan.server.websocket.handlers.RemoveHandler;
import org.infinispan.util.TypedProperties;
import org.infinispan.util.concurrent.ConcurrentMapFactory;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.jboss.netty.handler.codec.http.HttpChunkAggregator;
import org.jboss.netty.handler.codec.http.HttpRequestDecoder;
import org.jboss.netty.handler.codec.http.HttpResponseEncoder;
import org.jboss.netty.handler.codec.oneone.OneToOneEncoder;
/**
* An HTTP server which serves Web Socket requests on an Infinispan cacheManager.
* <p/>
* Websocket specific code lifted from Netty WebSocket Server example.
*/
public class WebSocketServer extends AbstractProtocolServer {
public static final String INFINISPAN_WS_JS_FILENAME = "infinispan-ws.js";
private static String javascript;
private Channel channel;
public WebSocketServer() {
super("WebSocketServerThread");
}
public OneToOneEncoder getEncoder() {
return null;
}
public CustomReplayingDecoder getDecoder() {
return null;
}
// @Override
public void start(Properties p, EmbeddedCacheManager cacheManager) {
Properties properties = p == null ? new Properties() : p;
super.start(properties, cacheManager, 8181);
}
@Override
public void startTransport(int idleTimeout, boolean tcpNoDelay, int sendBufSize, int recvBufSize, TypedProperties typedProps) {
InetSocketAddress address = new InetSocketAddress(getHost(), getPort());
Executor masterExecutor = Executors.newCachedThreadPool();
Executor workerExecutor = Executors.newCachedThreadPool();
NioServerSocketChannelFactory factory = new NioServerSocketChannelFactory(masterExecutor, workerExecutor, workerThreads());
// Configure the server.
ServerBootstrap bootstrap = new ServerBootstrap(factory);
// Set up the event pipeline factory.
bootstrap.setPipelineFactory(new WebSocketServerPipelineFactory(cacheManager()));
// Bind and start to accept incoming connections.
bootstrap.setOption("child.tcpNoDelay", tcpNoDelay);
if (sendBufSize > 0) bootstrap.setOption("child.sendBufferSize", sendBufSize);
if (recvBufSize > 0) bootstrap.setOption("receiveBufferSize", recvBufSize);
bootstrap.bind(address);
}
@Override
public void stop() {
if (channel != null) channel.close();
}
private static class WebSocketServerPipelineFactory implements ChannelPipelineFactory {
private CacheContainer cacheContainer;
private Map<String, OpHandler> operationHandlers;
private Map<String, Cache> startedCaches = ConcurrentMapFactory.makeConcurrentMap();
public WebSocketServerPipelineFactory(CacheContainer cacheContainer) {
this.cacheContainer = cacheContainer;
operationHandlers = new HashMap<String, OpHandler>();
operationHandlers.put("put", new PutHandler());
operationHandlers.put("get", new GetHandler());
operationHandlers.put("remove", new RemoveHandler());
NotifyHandler notifyHandler = new NotifyHandler();
operationHandlers.put("notify", notifyHandler);
operationHandlers.put("unnotify", notifyHandler);
}
@Override
public ChannelPipeline getPipeline() throws Exception {
// Create a default pipeline implementation.
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("decoder", new HttpRequestDecoder());
pipeline.addLast("aggregator", new HttpChunkAggregator(65536));
pipeline.addLast("encoder", new HttpResponseEncoder());
pipeline.addLast("handler", new WebSocketServerHandler(cacheContainer, operationHandlers, startedCaches));
return pipeline;
}
}
public static String getJavascript() {
if (javascript != null) {
return javascript;
}
BufferedReader scriptReader = new BufferedReader(new InputStreamReader(WebSocketServer.class.getResourceAsStream(INFINISPAN_WS_JS_FILENAME)));
try {
StringWriter writer = new StringWriter();
String line = scriptReader.readLine();
while (line != null) {
writer.write(line);
writer.write('\n');
line = scriptReader.readLine();
}
javascript = writer.toString();
return javascript;
} catch (IOException e) {
throw new IllegalStateException("Unexpected exception while sending Websockets script to client.", e);
} finally {
try {
scriptReader.close();
} catch (IOException e) {
throw new IllegalStateException("Unexpected exception while closing Websockets script to client.", e);
}
}
}
}