Java tutorial
/* * Copyright 2002-2018 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.http.client.reactive; import java.net.URI; import java.util.function.Function; import reactor.core.publisher.Mono; import org.springframework.http.HttpMethod; /** * Abstraction over HTTP clients driving the underlying HTTP client to connect * to the origin server and provide all necessary infrastructure to send a * {@link ClientHttpRequest} and receive a {@link ClientHttpResponse}. * * @author Brian Clozel * @since 5.0 */ public interface ClientHttpConnector { /** * Connect to the origin server using the given {@code HttpMethod} and * {@code URI} and apply the given {@code requestCallback} when the HTTP * request of the underlying API can be initialized and written to. * @param method the HTTP request method * @param uri the HTTP request URI * @param requestCallback a function that prepares and writes to the request, * returning a publisher that signals when it's done writing. * Implementations can return a {@code Mono<Void>} by calling * {@link ClientHttpRequest#writeWith} or {@link ClientHttpRequest#setComplete}. * @return publisher for the {@link ClientHttpResponse} */ Mono<ClientHttpResponse> connect(HttpMethod method, URI uri, Function<? super ClientHttpRequest, Mono<Void>> requestCallback); }