001/* 002 * Copyright 2002-2016 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.support; 018 019import java.util.ArrayList; 020import java.util.List; 021 022import org.springframework.http.client.AsyncClientHttpRequestFactory; 023import org.springframework.http.client.AsyncClientHttpRequestInterceptor; 024import org.springframework.http.client.InterceptingAsyncClientHttpRequestFactory; 025import org.springframework.util.CollectionUtils; 026 027/** 028 * The HTTP accessor that extends the base {@link AsyncHttpAccessor} with 029 * request intercepting functionality. 030 * 031 * @author Jakub Narloch 032 * @author Rossen Stoyanchev 033 * @since 4.3 034 */ 035public abstract class InterceptingAsyncHttpAccessor extends AsyncHttpAccessor { 036 037 private List<AsyncClientHttpRequestInterceptor> interceptors = 038 new ArrayList<AsyncClientHttpRequestInterceptor>(); 039 040 041 /** 042 * Set the request interceptors that this accessor should use. 043 * @param interceptors the list of interceptors 044 */ 045 public void setInterceptors(List<AsyncClientHttpRequestInterceptor> interceptors) { 046 this.interceptors = interceptors; 047 } 048 049 /** 050 * Return the request interceptor that this accessor uses. 051 */ 052 public List<AsyncClientHttpRequestInterceptor> getInterceptors() { 053 return this.interceptors; 054 } 055 056 057 @Override 058 public AsyncClientHttpRequestFactory getAsyncRequestFactory() { 059 AsyncClientHttpRequestFactory delegate = super.getAsyncRequestFactory(); 060 if (!CollectionUtils.isEmpty(getInterceptors())) { 061 return new InterceptingAsyncClientHttpRequestFactory(delegate, getInterceptors()); 062 } 063 else { 064 return delegate; 065 } 066 } 067 068}