| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.async; |
| |
| import java.io.IOException; |
| |
| import org.apache.hc.client5.http.HttpRoute; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| import org.apache.hc.core5.concurrent.CancellableDependency; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpRequest; |
| import org.apache.hc.core5.http.nio.AsyncEntityProducer; |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * Represents a single element in the client side asynchronous request execution chain. |
| * |
| * @since 5.0 |
| */ |
| @Contract(threading = ThreadingBehavior.STATELESS) |
| public interface AsyncExecChain { |
| |
| /** |
| * Request execution scope that includes the unique message exchange ID, |
| * the connection route, the original request message, the execution |
| * context and the internal execution runtime. |
| */ |
| final class Scope { |
| |
| public final String exchangeId; |
| public final HttpRoute route; |
| public final HttpRequest originalRequest; |
| public final CancellableDependency cancellableDependency; |
| public final HttpClientContext clientContext; |
| public final AsyncExecRuntime execRuntime; |
| |
| public Scope( |
| final String exchangeId, |
| final HttpRoute route, |
| final HttpRequest originalRequest, |
| final CancellableDependency cancellableDependency, |
| final HttpClientContext clientContext, |
| final AsyncExecRuntime execRuntime) { |
| this.exchangeId = Args.notBlank(exchangeId, "Exchange id"); |
| this.route = Args.notNull(route, "Route"); |
| this.originalRequest = Args.notNull(originalRequest, "Original request"); |
| this.cancellableDependency = Args.notNull(cancellableDependency, "Dependency"); |
| this.clientContext = clientContext != null ? clientContext : HttpClientContext.create(); |
| this.execRuntime = Args.notNull(execRuntime, "Exec runtime"); |
| } |
| |
| } |
| |
| /** |
| * Proceeds to the next element in the request execution chain. |
| * |
| * @param request the actual request. |
| * @param entityProducer the request entity producer or {@code null} if the request |
| * does not enclose an entity. |
| * @param scope the execution scope . |
| * @param asyncExecCallback the execution callback. |
| */ |
| void proceed( |
| HttpRequest request, |
| AsyncEntityProducer entityProducer, |
| Scope scope, |
| AsyncExecCallback asyncExecCallback) throws HttpException, IOException; |
| |
| } |