| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.websocket.server; |
| |
| import java.io.IOException; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.eclipse.jetty.io.ByteBufferPool; |
| import org.eclipse.jetty.io.MappedByteBufferPool; |
| import org.eclipse.jetty.server.Request; |
| import org.eclipse.jetty.server.handler.HandlerWrapper; |
| import org.eclipse.jetty.websocket.api.WebSocketBehavior; |
| import org.eclipse.jetty.websocket.api.WebSocketPolicy; |
| import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory; |
| |
| public abstract class WebSocketHandler extends HandlerWrapper |
| { |
| /** |
| * Create a simple WebSocketHandler that registers a single WebSocket POJO that is created on every upgrade request. |
| */ |
| public static class Simple extends WebSocketHandler |
| { |
| private Class<?> websocketPojo; |
| |
| public Simple(Class<?> websocketClass) |
| { |
| super(); |
| this.websocketPojo = websocketClass; |
| } |
| |
| @Override |
| public void configure(WebSocketServletFactory factory) |
| { |
| factory.register(websocketPojo); |
| } |
| } |
| |
| private final WebSocketServletFactory webSocketFactory; |
| |
| public WebSocketHandler() |
| { |
| this(new MappedByteBufferPool()); |
| } |
| |
| public WebSocketHandler(ByteBufferPool bufferPool) |
| { |
| WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER); |
| configurePolicy(policy); |
| webSocketFactory = new WebSocketServerFactory(policy, bufferPool); |
| addBean(webSocketFactory); |
| } |
| |
| public abstract void configure(WebSocketServletFactory factory); |
| |
| public void configurePolicy(WebSocketPolicy policy) |
| { |
| /* leave at default */ |
| } |
| |
| @Override |
| protected void doStart() throws Exception |
| { |
| configure(webSocketFactory); |
| super.doStart(); |
| } |
| |
| public WebSocketServletFactory getWebSocketFactory() |
| { |
| return webSocketFactory; |
| } |
| |
| @Override |
| public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException |
| { |
| if (webSocketFactory.isUpgradeRequest(request,response)) |
| { |
| // We have an upgrade request |
| if (webSocketFactory.acceptWebSocket(request,response)) |
| { |
| // We have a socket instance created |
| baseRequest.setHandled(true); |
| return; |
| } |
| // If we reach this point, it means we had an incoming request to upgrade |
| // but it was either not a proper websocket upgrade, or it was possibly rejected |
| // due to incoming request constraints (controlled by WebSocketCreator) |
| if (response.isCommitted()) |
| { |
| // not much we can do at this point. |
| return; |
| } |
| } |
| super.handle(target,baseRequest,request,response); |
| } |
| } |