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 */
016package org.springframework.http.server.reactive;
017
018import java.util.function.Supplier;
019
020import org.reactivestreams.Publisher;
021import reactor.core.publisher.Mono;
022
023import org.springframework.core.io.buffer.DataBuffer;
024import org.springframework.core.io.buffer.DataBufferFactory;
025import org.springframework.http.HttpHeaders;
026import org.springframework.http.HttpStatus;
027import org.springframework.http.ResponseCookie;
028import org.springframework.lang.Nullable;
029import org.springframework.util.Assert;
030import org.springframework.util.MultiValueMap;
031
032/**
033 * Wraps another {@link ServerHttpResponse} and delegates all methods to it.
034 * Sub-classes can override specific methods selectively.
035 *
036 * @author Rossen Stoyanchev
037 * @since 5.0
038 */
039public class ServerHttpResponseDecorator implements ServerHttpResponse {
040
041        private final ServerHttpResponse delegate;
042
043
044        public ServerHttpResponseDecorator(ServerHttpResponse delegate) {
045                Assert.notNull(delegate, "Delegate is required");
046                this.delegate = delegate;
047        }
048
049
050        public ServerHttpResponse getDelegate() {
051                return this.delegate;
052        }
053
054
055        // ServerHttpResponse delegation methods...
056
057        @Override
058        public boolean setStatusCode(@Nullable HttpStatus status) {
059                return getDelegate().setStatusCode(status);
060        }
061
062        @Override
063        public HttpStatus getStatusCode() {
064                return getDelegate().getStatusCode();
065        }
066
067        @Override
068        public HttpHeaders getHeaders() {
069                return getDelegate().getHeaders();
070        }
071
072        @Override
073        public MultiValueMap<String, ResponseCookie> getCookies() {
074                return getDelegate().getCookies();
075        }
076
077        @Override
078        public void addCookie(ResponseCookie cookie) {
079                getDelegate().addCookie(cookie);
080        }
081
082        @Override
083        public DataBufferFactory bufferFactory() {
084                return getDelegate().bufferFactory();
085        }
086
087        @Override
088        public void beforeCommit(Supplier<? extends Mono<Void>> action) {
089                getDelegate().beforeCommit(action);
090        }
091
092        @Override
093        public boolean isCommitted() {
094                return getDelegate().isCommitted();
095        }
096
097        @Override
098        public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
099                return getDelegate().writeWith(body);
100        }
101
102        @Override
103        public Mono<Void> writeAndFlushWith(Publisher<? extends Publisher<? extends DataBuffer>> body) {
104                return getDelegate().writeAndFlushWith(body);
105        }
106
107        @Override
108        public Mono<Void> setComplete() {
109                return getDelegate().setComplete();
110        }
111
112
113        @Override
114        public String toString() {
115                return getClass().getSimpleName() + " [delegate=" + getDelegate() + "]";
116        }
117
118}