/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.cxf.transport.http_jetty.continuations; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.cxf.continuations.Continuation; import org.apache.cxf.continuations.ContinuationCallback; import org.apache.cxf.message.Message; import org.apache.cxf.transport.http.AbstractHTTPDestination; import org.eclipse.jetty.continuation.ContinuationListener; import org.eclipse.jetty.continuation.ContinuationSupport; public class JettyContinuationWrapper implements Continuation, ContinuationListener { volatile boolean isNew; volatile boolean isResumed; volatile boolean isPending; volatile long pendingTimeout; volatile Object obj; private Message message; private org.eclipse.jetty.continuation.Continuation continuation; private ContinuationCallback callback; public JettyContinuationWrapper(HttpServletRequest request, HttpServletResponse resp, Message m) { continuation = ContinuationSupport.getContinuation(request); message = m; isNew = request.getAttribute(AbstractHTTPDestination.CXF_CONTINUATION_MESSAGE) == null; if (isNew) { request.setAttribute(AbstractHTTPDestination.CXF_CONTINUATION_MESSAGE, message.getExchange().getInMessage()); continuation.addContinuationListener(this); callback = message.getExchange().get(ContinuationCallback.class); } } public Object getObject() { return obj; } public void setObject(Object userObject) { obj = userObject; } public void resume() { isResumed = true; isPending = false; continuation.resume(); } public boolean isNew() { return isNew; } public boolean isPending() { return isPending; } public boolean isResumed() { return isResumed; } public boolean isExpired() { return continuation.isExpired(); } public void reset() { try { continuation.complete(); } catch (Throwable ex) { // explicit complete call does not seem to work // with the non-Servlet3 Jetty Continuation } obj = null; pendingTimeout = 0; } public boolean suspend(long timeout) { if (isPending && timeout != 0) { pendingTimeout += pendingTimeout + timeout; } else { pendingTimeout = timeout; } isNew = false; message.getExchange().getInMessage().getInterceptorChain().suspend(); continuation.setTimeout(pendingTimeout); if (!isPending) { continuation.suspend(); isPending = true; } return true; } protected Message getMessage() { Message m = message; if (m != null && m.getExchange().getInMessage() != null) { m = m.getExchange().getInMessage(); } return m; } public void onComplete(org.eclipse.jetty.continuation.Continuation cont) { getMessage().remove(AbstractHTTPDestination.CXF_CONTINUATION_MESSAGE); isPending = false; pendingTimeout = 0; isResumed = false; if (callback != null) { callback.onComplete(); } } public void onTimeout(org.eclipse.jetty.continuation.Continuation cont) { isPending = false; pendingTimeout = 0; isResumed = true; } @Override public boolean isReadyForWrite() { return true; } }