/*
* Copyright 2002-2014 the original author or authors.
*
* 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 org.springframework.web.socket;
import java.io.IOException;
import javax.servlet.DispatcherType;
import javax.servlet.Filter;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import io.undertow.Undertow;
import io.undertow.server.HttpHandler;
import io.undertow.servlet.api.DeploymentInfo;
import io.undertow.servlet.api.DeploymentManager;
import io.undertow.servlet.api.FilterInfo;
import io.undertow.servlet.api.InstanceFactory;
import io.undertow.servlet.api.InstanceHandle;
import io.undertow.websockets.jsr.WebSocketDeploymentInfo;
import org.xnio.ByteBufferSlicePool;
import org.xnio.OptionMap;
import org.xnio.Xnio;
import org.springframework.util.Assert;
import org.springframework.util.SocketUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;
import static io.undertow.servlet.Servlets.*;
/**
* Undertow-based {@link WebSocketTestServer}.
*
* @author Rossen Stoyanchev
*/
public class UndertowTestServer implements WebSocketTestServer {
private int port = -1;
private Undertow server;
private DeploymentManager manager;
@Override
public void setup() {
this.port = SocketUtils.findAvailableTcpPort();
}
@Override
public int getPort() {
return this.port;
}
@Override
public void deployConfig(WebApplicationContext cxt, Filter... filters) {
Assert.state(this.port != -1, "setup() was never called");
DispatcherServletInstanceFactory servletFactory = new DispatcherServletInstanceFactory(cxt);
// manually building WebSocketDeploymentInfo in order to avoid class cast exceptions
// with tomcat's implementation when using undertow 1.1.0+
WebSocketDeploymentInfo info = new WebSocketDeploymentInfo();
try {
info.setWorker(Xnio.getInstance().createWorker(OptionMap.EMPTY));
info.setBuffers(new ByteBufferSlicePool(1024,1024));
}
catch (IOException ex) {
throw new IllegalStateException(ex);
}
DeploymentInfo servletBuilder = deployment()
.setClassLoader(UndertowTestServer.class.getClassLoader())
.setDeploymentName("undertow-websocket-test")
.setContextPath("/")
.addServlet(servlet("DispatcherServlet", DispatcherServlet.class, servletFactory).addMapping("/").setAsyncSupported(true))
.addServletContextAttribute(WebSocketDeploymentInfo.ATTRIBUTE_NAME, info);
for (final Filter filter : filters) {
String filterName = filter.getClass().getName();
servletBuilder.addFilter(new FilterInfo(filterName, filter.getClass(), new FilterInstanceFactory(filter)).setAsyncSupported(true));
for (DispatcherType type : DispatcherType.values()) {
servletBuilder.addFilterUrlMapping(filterName, "/*", type);
}
}
try {
this.manager = defaultContainer().addDeployment(servletBuilder);
this.manager.deploy();
HttpHandler httpHandler = this.manager.start();
this.server = Undertow.builder().addHttpListener(this.port, "localhost").setHandler(httpHandler).build();
}
catch (ServletException ex) {
throw new IllegalStateException(ex);
}
}
@Override
public void undeployConfig() {
this.manager.undeploy();
}
@Override
public void start() throws Exception {
this.server.start();
}
@Override
public void stop() throws Exception {
this.server.stop();
}
private static class DispatcherServletInstanceFactory implements InstanceFactory<Servlet> {
private final WebApplicationContext wac;
public DispatcherServletInstanceFactory(WebApplicationContext wac) {
this.wac = wac;
}
@Override
public InstanceHandle<Servlet> createInstance() throws InstantiationException {
return new InstanceHandle<Servlet>() {
@Override
public Servlet getInstance() {
return new DispatcherServlet(wac);
}
@Override
public void release() {
}
};
}
}
private static class FilterInstanceFactory implements InstanceFactory<Filter> {
private final Filter filter;
private FilterInstanceFactory(Filter filter) {
this.filter = filter;
}
@Override
public InstanceHandle<Filter> createInstance() throws InstantiationException {
return new InstanceHandle<Filter>() {
@Override
public Filter getInstance() {
return filter;
}
@Override
public void release() {}
};
}
}
}