001/*
002 * Copyright 2002-2018 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.http.client;
018
019import java.net.URI;
020import java.util.Collections;
021import java.util.List;
022
023import org.springframework.http.HttpMethod;
024import org.springframework.lang.Nullable;
025
026/**
027 * {@link ClientHttpRequestFactory} wrapper with support for
028 * {@link ClientHttpRequestInterceptor ClientHttpRequestInterceptors}.
029 *
030 * @author Arjen Poutsma
031 * @since 3.1
032 * @see ClientHttpRequestFactory
033 * @see ClientHttpRequestInterceptor
034 */
035public class InterceptingClientHttpRequestFactory extends AbstractClientHttpRequestFactoryWrapper {
036
037        private final List<ClientHttpRequestInterceptor> interceptors;
038
039
040        /**
041         * Create a new instance of the {@code InterceptingClientHttpRequestFactory} with the given parameters.
042         * @param requestFactory the request factory to wrap
043         * @param interceptors the interceptors that are to be applied (can be {@code null})
044         */
045        public InterceptingClientHttpRequestFactory(ClientHttpRequestFactory requestFactory,
046                        @Nullable List<ClientHttpRequestInterceptor> interceptors) {
047
048                super(requestFactory);
049                this.interceptors = (interceptors != null ? interceptors : Collections.emptyList());
050        }
051
052
053        @Override
054        protected ClientHttpRequest createRequest(URI uri, HttpMethod httpMethod, ClientHttpRequestFactory requestFactory) {
055                return new InterceptingClientHttpRequest(requestFactory, this.interceptors, uri, httpMethod);
056        }
057
058}