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Jersey core server implementation
/*
* Copyright (c) 2014, 2019 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 org.glassfish.jersey.internal.util.collection.Ref;
import org.glassfish.jersey.server.monitoring.ApplicationEvent;
import org.glassfish.jersey.server.monitoring.ApplicationEventListener;
import org.glassfish.jersey.server.monitoring.ApplicationInfo;
import org.glassfish.jersey.server.monitoring.RequestEvent;
import org.glassfish.jersey.server.monitoring.RequestEventListener;
import javax.annotation.Priority;
import javax.inject.Inject;
import javax.inject.Provider;
import java.util.Date;
/**
* {@link ApplicationEventListener Application event listener} that listens to {@link ApplicationEvent application}
* events and just prepare {@link ApplicationInfo} instance to be injectable.
*
* @see MonitoringEventListener
*
* @author Libor Kramolis
*/
@Priority(ApplicationInfoListener.PRIORITY)
public final class ApplicationInfoListener implements ApplicationEventListener {
public static final int PRIORITY = 1000;
@Inject
private Provider> applicationInfoRefProvider;
@Override
public RequestEventListener onRequest(final RequestEvent requestEvent) {
return null;
}
@Override
public void onEvent(final ApplicationEvent event) {
final ApplicationEvent.Type type = event.getType();
switch (type) {
case RELOAD_FINISHED:
case INITIALIZATION_FINISHED:
processApplicationStatistics(event);
break;
}
}
private void processApplicationStatistics(ApplicationEvent event) {
final long now = System.currentTimeMillis();
final ApplicationInfo applicationInfo = new ApplicationInfoImpl(event.getResourceConfig(),
new Date(now), event.getRegisteredClasses(),
event.getRegisteredInstances(), event.getProviders());
applicationInfoRefProvider.get().set(applicationInfo);
}
}