Java tutorial
/* * Copyright (c) 2011-2013, bad robot (london) ltd * * 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 bad.robot.http.apache; import bad.robot.http.*; import org.apache.http.client.methods.HttpDelete; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.*; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.methods.HttpPut; import org.apache.http.protocol.HttpContext; import java.net.URL; import java.util.concurrent.Callable; import static bad.robot.http.EmptyHeaders.emptyHeaders; import static bad.robot.http.apache.Coercions.asApacheBasicHeader; public class ApacheHttpClient implements HttpClient { private final org.apache.http.client.HttpClient client; private final HttpContext localContext; private final Executor<HttpException> executor; public ApacheHttpClient(Builder<org.apache.http.client.HttpClient> clientBuilder, Builder<HttpContext> localContextBuilder) { this.client = clientBuilder.build(); this.localContext = localContextBuilder.build(); this.executor = new ApacheExceptionWrappingExecutor(); } @Override public HttpResponse get(URL url, Headers headers) throws HttpException { HttpGet get = new HttpGet(url.toExternalForm()); get.setHeaders(asApacheBasicHeader(headers)); return execute(get); } @Override public HttpResponse get(URL url) throws HttpException { return get(url, emptyHeaders()); } @Override public HttpResponse post(URL url, bad.robot.http.HttpPost message) throws HttpException { HttpPost post = new HttpPost(url.toExternalForm()); for (Header header : message.getHeaders()) post.addHeader(header.name(), header.value()); post.setEntity(new HttpRequestToEntity(message).asHttpEntity()); return execute(post); } @Override public HttpResponse put(URL url, bad.robot.http.HttpPut message) { HttpPut put = new HttpPut(url.toExternalForm()); for (Header header : message.getHeaders()) put.addHeader(header.name(), header.value()); put.setEntity(new HttpRequestToEntity(message).asHttpEntity()); return execute(put); } @Override public HttpResponse delete(URL url) throws HttpException { return execute(new HttpDelete(url.toExternalForm())); } @Override public HttpResponse options(URL url) throws HttpException { return execute(new HttpOptions(url.toExternalForm())); } private HttpResponse execute(HttpUriRequest request) { return executor.submit(http(request)); } private Callable<HttpResponse> http(HttpUriRequest request) { return new ApacheHttpRequestExecutor(client, localContext, request); } @Override public void shutdown() { client.getConnectionManager().shutdown(); } }