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/*
 * 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;

import java.io.IOException;
import java.net.URI;

import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;

import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.util.StringUtils;

/**
 * {@link ClientHttpRequest} implementation based on
 * Apache HttpComponents HttpClient.
 *
 * 

Created via the {@link HttpComponentsClientHttpRequestFactory}. * * @author Oleg Kalnichevski * @author Arjen Poutsma * @author Juergen Hoeller * @since 3.1 * @see HttpComponentsClientHttpRequestFactory#createRequest(URI, HttpMethod) */ final class HttpComponentsClientHttpRequest extends AbstractBufferingClientHttpRequest { private final HttpClient httpClient; private final HttpUriRequest httpRequest; private final HttpContext httpContext; HttpComponentsClientHttpRequest(HttpClient client, HttpUriRequest request, HttpContext context) { this.httpClient = client; this.httpRequest = request; this.httpContext = context; } @Override public String getMethodValue() { return this.httpRequest.getMethod(); } @Override public URI getURI() { return this.httpRequest.getURI(); } HttpContext getHttpContext() { return this.httpContext; } @Override protected ClientHttpResponse executeInternal(HttpHeaders headers, byte[] bufferedOutput) throws IOException { addHeaders(this.httpRequest, headers); if (this.httpRequest instanceof HttpEntityEnclosingRequest) { HttpEntityEnclosingRequest entityEnclosingRequest = (HttpEntityEnclosingRequest) this.httpRequest; HttpEntity requestEntity = new ByteArrayEntity(bufferedOutput); entityEnclosingRequest.setEntity(requestEntity); } HttpResponse httpResponse = this.httpClient.execute(this.httpRequest, this.httpContext); return new HttpComponentsClientHttpResponse(httpResponse); } /** * Add the given headers to the given HTTP request. * @param httpRequest the request to add the headers to * @param headers the headers to add */ static void addHeaders(HttpUriRequest httpRequest, HttpHeaders headers) { headers.forEach((headerName, headerValues) -> { if (HttpHeaders.COOKIE.equalsIgnoreCase(headerName)) { // RFC 6265 String headerValue = StringUtils.collectionToDelimitedString(headerValues, "; "); httpRequest.addHeader(headerName, headerValue); } else if (!HTTP.CONTENT_LEN.equalsIgnoreCase(headerName) && !HTTP.TRANSFER_ENCODING.equalsIgnoreCase(headerName)) { for (String headerValue : headerValues) { httpRequest.addHeader(headerName, headerValue); } } }); } }





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