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• RequestEventListener.java

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org.glassfish.jersey.server.monitoring.RequestEventListener Maven / Gradle / Ivy

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
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 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */

package org.glassfish.jersey.server.monitoring;

/**
 * Non-registrable provider that listens to {@link RequestEvent request events}.
 * 

 * The implementation of the interface will be called for request events when they occur. The provider
 * cannot be registered as a standard JAX-RS or Jersey provider. The instance of the
 * {@code RequestEventListener} must be returned from the {@link ApplicationEventListener#onRequest(RequestEvent)}.
 * This will register the instance for listening of request events for one particular request. Once
 * the processing of the request is finished, the instance will be ignored by the Jersey runtime and not used
 * for processing of further requests.
 *
 * @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
 * @see ApplicationEventListener for details of how to register the {@code RequestEventListener}.
 */
public interface RequestEventListener {
    /**
     * The method is called when new request event occurs. This method will never be called for method
     * {@link RequestEvent.Type#START} as this event is handled by {@link ApplicationEventListener}.
     *
     * @param event Request event.
     */
    public void onEvent(RequestEvent event);
}