Java tutorial
/* * ==================================================================== * 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.http.impl.nio.client; import java.util.ArrayList; import java.util.List; import java.util.concurrent.Future; import org.apache.http.HttpHost; import org.apache.http.HttpRequest; import org.apache.http.HttpResponse; import org.apache.http.annotation.ThreadSafe; import org.apache.http.client.protocol.HttpClientContext; import org.apache.http.concurrent.FutureCallback; import org.apache.http.nio.client.HttpPipeliningClient; import org.apache.http.nio.client.methods.HttpAsyncMethods; import org.apache.http.nio.protocol.HttpAsyncRequestProducer; import org.apache.http.nio.protocol.HttpAsyncResponseConsumer; import org.apache.http.protocol.HttpContext; import org.apache.http.util.Args; /** * Base implementation of {@link org.apache.http.nio.client.HttpPipeliningClient} that also * implements {@link java.io.Closeable}. * * @since 4.1 */ @ThreadSafe public abstract class CloseableHttpPipeliningClient extends CloseableHttpAsyncClient implements HttpPipeliningClient { @Override public <T> Future<List<T>> execute(final HttpHost target, final List<? extends HttpAsyncRequestProducer> requestProducers, final List<? extends HttpAsyncResponseConsumer<T>> responseConsumers, final FutureCallback<List<T>> callback) { return execute(target, requestProducers, responseConsumers, HttpClientContext.create(), callback); } @Override public Future<List<HttpResponse>> execute(final HttpHost target, final List<HttpRequest> requests, final FutureCallback<List<HttpResponse>> callback) { return execute(target, requests, HttpClientContext.create(), callback); } @Override public Future<List<HttpResponse>> execute(final HttpHost target, final List<HttpRequest> requests, final HttpContext context, final FutureCallback<List<HttpResponse>> callback) { Args.notEmpty(requests, "HTTP request list"); final List<HttpAsyncRequestProducer> requestProducers = new ArrayList<HttpAsyncRequestProducer>( requests.size()); final List<HttpAsyncResponseConsumer<HttpResponse>> responseConsumers = new ArrayList<HttpAsyncResponseConsumer<HttpResponse>>( requests.size()); for (int i = 0; i < requests.size(); i++) { final HttpRequest request = requests.get(i); requestProducers.add(HttpAsyncMethods.create(target, request)); responseConsumers.add(HttpAsyncMethods.createConsumer()); } return execute(target, requestProducers, responseConsumers, context, callback); } }