/**
* 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.websocket.atmosphere;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.cxf.Bus;
import org.apache.cxf.helpers.CastUtils;
import org.atmosphere.cpr.AtmosphereFramework;
import org.atmosphere.cpr.AtmosphereInterceptor;
import org.atmosphere.cpr.HeaderConfig;
import org.atmosphere.interceptor.CacheHeadersInterceptor;
import org.atmosphere.interceptor.HeartbeatInterceptor;
import org.atmosphere.interceptor.JavaScriptProtocol;
import org.atmosphere.interceptor.SSEAtmosphereInterceptor;
import org.atmosphere.util.Utils;
/**
*
*/
public final class AtmosphereUtils {
private AtmosphereUtils() {
}
public static void addInterceptors(AtmosphereFramework framework, Bus bus) {
Object ais = bus.getProperty("atmosphere.interceptors");
// pre-install those atmosphere default interceptors before the custom interceptors.
framework.interceptor(new CacheHeadersInterceptor()).interceptor(new HeartbeatInterceptor())
.interceptor(new SSEAtmosphereInterceptor()).interceptor(new JavaScriptProtocol());
if (ais == null || ais instanceof AtmosphereInterceptor) {
framework.interceptor(ais == null
? new DefaultProtocolInterceptor() : (AtmosphereInterceptor)ais);
return;
}
if (ais instanceof List<?>) {
List<AtmosphereInterceptor> icps = CastUtils.cast((List<?>)ais);
// add the custom interceptors
for (AtmosphereInterceptor icp : icps) {
framework.interceptor(icp);
}
}
}
public static boolean useAtmosphere(HttpServletRequest req) {
return Utils.webSocketEnabled(req)
|| req.getParameter(HeaderConfig.X_ATMOSPHERE_TRANSPORT) != null;
}
}