001/*
002 * Copyright 2002-2015 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.web.context.request.async;
018
019import java.util.concurrent.Callable;
020
021import org.springframework.web.context.request.NativeWebRequest;
022
023/**
024 * Abstract adapter class for the {@link CallableProcessingInterceptor} interface,
025 * for simplified implementation of individual methods.
026 *
027 * @author Rossen Stoyanchev
028 * @author Rob Winch
029 * @since 3.2
030 */
031public abstract class CallableProcessingInterceptorAdapter implements CallableProcessingInterceptor {
032
033        /**
034         * This implementation is empty.
035         */
036        @Override
037        public <T> void beforeConcurrentHandling(NativeWebRequest request, Callable<T> task) throws Exception {
038        }
039
040        /**
041         * This implementation is empty.
042         */
043        @Override
044        public <T> void preProcess(NativeWebRequest request, Callable<T> task) throws Exception {
045        }
046
047        /**
048         * This implementation is empty.
049         */
050        @Override
051        public <T> void postProcess(NativeWebRequest request, Callable<T> task, Object concurrentResult) throws Exception {
052        }
053
054        /**
055         * This implementation always returns
056         * {@link CallableProcessingInterceptor#RESULT_NONE RESULT_NONE}.
057         */
058        @Override
059        public <T> Object handleTimeout(NativeWebRequest request, Callable<T> task) throws Exception {
060                return RESULT_NONE;
061        }
062
063        /**
064         * This implementation is empty.
065         */
066        @Override
067        public <T> void afterCompletion(NativeWebRequest request, Callable<T> task) throws Exception {
068        }
069
070}