/*
* Copyright (c) 2013, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.jersey.server.internal.monitoring;
import java.util.ArrayList;
import java.util.List;
import org.glassfish.jersey.server.monitoring.ApplicationEvent;
import org.glassfish.jersey.server.monitoring.ApplicationEventListener;
import org.glassfish.jersey.server.monitoring.RequestEvent;
import org.glassfish.jersey.server.monitoring.RequestEventListener;
application event listener
that aggregates more event listeners into one. Calling listener methods on this listener will cause calling methods on all aggregated listeners. Author: Miroslav Fuksa
/**
* {@link ApplicationEventListener application event listener} that aggregates more event listeners into one.
* Calling listener methods on this listener will cause calling methods on all aggregated listeners.
*
* @author Miroslav Fuksa
*/
public class CompositeApplicationEventListener implements ApplicationEventListener {
private final Iterable<ApplicationEventListener> applicationEventListeners;
Creates a new instance of composite event listener.
Params: - applicationEventListeners – List of application event listener that should be aggregated.
/**
* Creates a new instance of composite event listener.
*
* @param applicationEventListeners List of application event listener that should be aggregated.
*/
public CompositeApplicationEventListener(final Iterable<ApplicationEventListener> applicationEventListeners) {
this.applicationEventListeners = applicationEventListeners;
}
@Override
public void onEvent(final ApplicationEvent event) {
for (final ApplicationEventListener applicationEventListener : applicationEventListeners) {
applicationEventListener.onEvent(event);
}
}
@Override
public RequestEventListener onRequest(final RequestEvent requestEvent) {
final List<RequestEventListener> requestEventListeners = new ArrayList<>();
for (final ApplicationEventListener applicationEventListener : applicationEventListeners) {
final RequestEventListener requestEventListener = applicationEventListener.onRequest(requestEvent);
if (requestEventListener != null) {
requestEventListeners.add(requestEventListener);
}
}
return requestEventListeners.isEmpty() ? null
: new CompositeRequestEventListener(requestEventListeners);
}
}