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/*
 * Copyright 2002-2014 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
 *
 *      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.springframework.http.client;

import java.io.IOException;
import java.io.InputStream;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.util.EntityUtils;

import org.springframework.http.HttpHeaders;

/**
 * {@link org.springframework.http.client.ClientHttpResponse} implementation that uses
 * Apache HttpComponents HttpClient to execute requests.
 *
 * 

Created via the {@link HttpComponentsClientHttpRequest}. * * @author Oleg Kalnichevski * @author Arjen Poutsma * @since 3.1 * @see HttpComponentsClientHttpRequest#execute() */ final class HttpComponentsClientHttpResponse extends AbstractClientHttpResponse { private final CloseableHttpResponse httpResponse; private HttpHeaders headers; HttpComponentsClientHttpResponse(CloseableHttpResponse httpResponse) { this.httpResponse = httpResponse; } @Override public int getRawStatusCode() throws IOException { return this.httpResponse.getStatusLine().getStatusCode(); } @Override public String getStatusText() throws IOException { return this.httpResponse.getStatusLine().getReasonPhrase(); } @Override public HttpHeaders getHeaders() { if (this.headers == null) { this.headers = new HttpHeaders(); for (Header header : this.httpResponse.getAllHeaders()) { this.headers.add(header.getName(), header.getValue()); } } return this.headers; } @Override public InputStream getBody() throws IOException { HttpEntity entity = this.httpResponse.getEntity(); return (entity != null ? entity.getContent() : null); } @Override public void close() { // Release underlying connection back to the connection manager try { try { // Attempt to keep connection alive by consuming its remaining content EntityUtils.consume(this.httpResponse.getEntity()); } finally { this.httpResponse.close(); } } catch (IOException ex) { // Ignore exception on close... } } }





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