/*
* Copyright 2014 Jeanfrancois Arcand
*
* 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.atmosphere.annotation;
import org.atmosphere.client.TrackMessageSizeInterceptor;
import org.atmosphere.cpr.Action;
import org.atmosphere.cpr.AtmosphereFramework;
import org.atmosphere.cpr.AtmosphereInterceptor;
import org.atmosphere.cpr.AtmosphereInterceptorAdapter;
import org.atmosphere.cpr.AtmosphereResource;
import org.atmosphere.cpr.AtmosphereResourceEventListener;
import org.atmosphere.cpr.BroadcastFilter;
import org.atmosphere.cpr.Broadcaster;
import org.atmosphere.interceptor.AtmosphereResourceLifecycleInterceptor;
import org.atmosphere.interceptor.SuspendTrackerInterceptor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
public class AnnotationUtil {
public static final Logger logger = LoggerFactory.getLogger(AnnotationUtil.class);
private static final Class<? extends AtmosphereInterceptor>[] defaultInterceptors = new Class[]{
AtmosphereResourceLifecycleInterceptor.class,
TrackMessageSizeInterceptor.class,
SuspendTrackerInterceptor.class
};
public static void interceptors(Class<? extends AtmosphereInterceptor>[] interceptors, AtmosphereFramework framework) {
for (Class i : interceptors) {
try {
framework.interceptor(framework.newClassInstance(AtmosphereInterceptor.class, i));
} catch (Throwable e) {
logger.warn("", e);
}
}
}
public static void filters(Class<? extends BroadcastFilter>[] bf, AtmosphereFramework framework) throws IllegalAccessException, InstantiationException {
for (Class<? extends BroadcastFilter> b : bf) {
framework.broadcasterFilters(framework.newClassInstance(BroadcastFilter.class, b));
}
}
public static void atmosphereConfig(String[] m, AtmosphereFramework framework) {
for (String s : m) {
String[] nv = s.split("=");
framework.addInitParameter(nv[0], nv[1]);
framework.reconfigureInitParams(true);
}
}
public static void defaultInterceptors(AtmosphereFramework framework, List<AtmosphereInterceptor> l) {
interceptors(framework, defaultInterceptors, l);
}
public static void interceptors(AtmosphereFramework framework, Class<? extends AtmosphereInterceptor>[] interceptors, List<AtmosphereInterceptor> l) {
for (Class i : interceptors) {
try {
l.add(framework.newClassInstance(AtmosphereInterceptor.class, i));
} catch (Throwable e) {
logger.warn("", e);
}
}
}
public static AtmosphereInterceptor listeners(final Class<? extends AtmosphereResourceEventListener>[] listeners, final AtmosphereFramework framework) {
if (listeners.length > 0) {
try {
return new AtmosphereInterceptorAdapter() {
@Override
public Action inspect(AtmosphereResource r) {
if (!r.isSuspended()) {
for (Class<? extends AtmosphereResourceEventListener> l : listeners) {
try {
r.addEventListener(framework.newClassInstance(AtmosphereResourceEventListener.class, l));
} catch (Throwable e) {
logger.warn("", e);
}
}
}
return Action.CONTINUE;
}
@Override
public String toString() {
return "@Service Event Listeners";
}
};
} catch (Throwable e) {
logger.warn("", e);
}
}
return null;
}
public static Broadcaster broadcaster(AtmosphereFramework framework, Class<? extends Broadcaster> broadcaster, String path) throws Exception {
return framework.getBroadcasterFactory().lookup(broadcasterClass(framework, broadcaster), path, true);
}
public static Class<? extends Broadcaster> broadcasterClass(AtmosphereFramework framework, Class<? extends Broadcaster> broadcaster) throws Exception {
if (framework.isBroadcasterSpecified()) {
try {
broadcaster = (Class<? extends Broadcaster>) framework.getClass().getClassLoader().loadClass(framework.getDefaultBroadcasterClassName());
} catch (ClassNotFoundException ex) {
broadcaster = (Class<? extends Broadcaster>) Thread.currentThread().getContextClassLoader().loadClass(framework.getDefaultBroadcasterClassName());
}
}
return broadcaster;
}
}