johnament commented on a change in pull request #331: [CXF-7535] Adding client & server support for Project Reactor URL: https://github.com/apache/cxf/pull/331#discussion_r149260988
########## File path: rt/rs/extensions/reactor/src/main/java/org/apache/cxf/jaxrs/reactor/client/FluxRxInvokerImpl.java ########## @@ -0,0 +1,178 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * + * http://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.apache.cxf.jaxrs.reactor.client; + +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Future; +import javax.ws.rs.HttpMethod; +import javax.ws.rs.client.Entity; +import javax.ws.rs.core.GenericType; +import javax.ws.rs.core.Response; +import org.apache.cxf.jaxrs.client.WebClient; +import static org.apache.cxf.jaxrs.reactor.client.ReactorUtils.toCompletableFuture; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; +import reactor.core.scheduler.Scheduler; +import reactor.core.scheduler.Schedulers; + +public class FluxRxInvokerImpl implements FluxRxInvoker { + private static final String TRACE = "TRACE"; + private final WebClient webClient; + private final Scheduler scheduler; + private final ExecutorService executorService; + + FluxRxInvokerImpl(WebClient webClient, ExecutorService executorService) { + this.webClient = webClient; + this.executorService = executorService; + this.scheduler = executorService == null ? null : Schedulers.fromExecutorService(executorService); + } + + @Override + public Flux<Response> get() { + return method(HttpMethod.GET); + } + + @Override + public <R> Flux<R> get(Class<R> responseType) { + return method(HttpMethod.GET, responseType); + } + + @Override + public <R> Flux<R> get(GenericType<R> genericType) { + return method(HttpMethod.GET, genericType); + } + + @Override + public Flux<Response> put(Entity<?> entity) { + return method(HttpMethod.PUT, entity); + } + + @Override + public <R> Flux<R> put(Entity<?> entity, Class<R> responseType) { + return method(HttpMethod.PUT, responseType); + } + + @Override + public <R> Flux<R> put(Entity<?> entity, GenericType<R> genericType) { + return method(HttpMethod.PUT, entity, genericType); + } + + @Override + public Flux<Response> post(Entity<?> entity) { + return method(HttpMethod.POST, entity); + } + + @Override + public <R> Flux<R> post(Entity<?> entity, Class<R> responseType) { + return method(HttpMethod.POST, entity, responseType); + } + + @Override + public <R> Flux<R> post(Entity<?> entity, GenericType<R> genericType) { + return method(HttpMethod.POST, entity, genericType); + } + + @Override + public Flux<Response> delete() { + return method(HttpMethod.DELETE); + } + + @Override + public <R> Flux<R> delete(Class<R> responseType) { + return method(HttpMethod.DELETE, responseType); + } + + @Override + public <R> Flux<R> delete(GenericType<R> genericType) { + return method(HttpMethod.DELETE, genericType); + } + + @Override + public Flux<Response> head() { + return method(HttpMethod.HEAD); + } + + @Override + public Flux<Response> options() { + return method(HttpMethod.OPTIONS); + } + + @Override + public <R> Flux<R> options(Class<R> responseType) { + return method(HttpMethod.OPTIONS, responseType); + } + + @Override + public <R> Flux<R> options(GenericType<R> genericType) { + return method(HttpMethod.OPTIONS, genericType); + } + + @Override + public Flux<Response> trace() { + return method(TRACE); + } + + @Override + public <R> Flux<R> trace(Class<R> responseType) { + return method(TRACE, responseType); + } + + @Override + public <R> Flux<R> trace(GenericType<R> genericType) { + return method(TRACE, genericType); + } + + @Override + public Flux<Response> method(String name) { + return method(name, Response.class); + } + + @Override + public <R> Flux<R> method(String name, Class<R> responseType) { + return flux(webClient.async().method(name, responseType)); + } + + @Override + public <R> Flux<R> method(String name, GenericType<R> genericType) { + return flux(webClient.async().method(name, genericType)); + } + + @Override + public Flux<Response> method(String name, Entity<?> entity) { + return method(name, entity, Response.class); + } + + @Override + public <R> Flux<R> method(String name, Entity<?> entity, Class<R> responseType) { + return flux(webClient.async().method(name, entity, responseType)); + } + + @Override + public <R> Flux<R> method(String name, Entity<?> entity, GenericType<R> genericType) { + return flux(webClient.async().method(name, entity, genericType)); + } + + private <R> Flux<R> flux(Future<R> future) { + Flux<R> flux = Flux.from(Mono.fromFuture(toCompletableFuture(future, executorService))); + if (scheduler != null) { Review comment: Since the underlying call is happening via async webclient, we can't take full advantage of the reactive nature (but not sure the JSON format works well, i want to play around with SSE next after this is merged). 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