/**
* 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
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package org.apache.cxf.transport.websocket;
import java.io.IOException;
import org.apache.cxf.Bus;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.transport.DestinationFactory;
import org.apache.cxf.transport.DestinationFactoryManager;
import org.apache.cxf.transport.http.AbstractHTTPDestination;
import org.apache.cxf.transport.http.DestinationRegistry;
import org.apache.cxf.transport.http.HTTPTransportFactory;
import org.apache.cxf.transport.http.HttpDestinationFactory;
import org.apache.cxf.transport.http_jetty.JettyHTTPServerEngineFactory;
import org.apache.cxf.transport.websocket.atmosphere.AtmosphereWebSocketServletDestination;
import org.apache.cxf.transport.websocket.jetty.JettyWebSocketDestination;
import org.apache.cxf.transport.websocket.jetty.JettyWebSocketServletDestination;
@NoJSR250Annotations()
public class WebSocketDestinationFactory implements HttpDestinationFactory {
private static final boolean ATMOSPHERE_AVAILABLE = probeClass("org.atmosphere.cpr.ApplicationConfig");
private static boolean probeClass(String name) {
try {
Class.forName(name, true, WebSocketDestinationFactory.class.getClassLoader());
return true;
} catch (Throwable t) {
return false;
}
}
public AbstractHTTPDestination createDestination(EndpointInfo endpointInfo, Bus bus,
DestinationRegistry registry) throws IOException {
if (endpointInfo.getAddress().startsWith("ws")) {
// for the embedded mode, we stick with jetty.
JettyHTTPServerEngineFactory serverEngineFactory = bus
.getExtension(JettyHTTPServerEngineFactory.class);
return new JettyWebSocketDestination(bus, registry, endpointInfo, serverEngineFactory);
} else {
//REVISIT other way of getting the registry of http so that the plain cxf servlet finds the destination?
registry = getDestinationRegistry(bus);
// choose atmosphere if available, otherwise assume jetty is available
if (ATMOSPHERE_AVAILABLE) {
// use atmosphere
return new AtmosphereWebSocketServletDestination(bus, registry,
endpointInfo, endpointInfo.getAddress());
} else {
// use jetty-websocket
return new JettyWebSocketServletDestination(bus, registry,
endpointInfo, endpointInfo.getAddress());
}
}
}
private static DestinationRegistry getDestinationRegistry(Bus bus) {
DestinationFactoryManager dfm = bus.getExtension(DestinationFactoryManager.class);
try {
DestinationFactory df = dfm
.getDestinationFactory("http://cxf.apache.org/transports/http/configuration");
if (df instanceof HTTPTransportFactory) {
HTTPTransportFactory transportFactory = (HTTPTransportFactory)df;
return transportFactory.getRegistry();
}
} catch (Exception e) {
// why are we throwing a busexception if the DF isn't found?
}
return null;
}
}