org.springframework.http.client.HttpComponentsClientHttpRequest Maven / Gradle / Ivy
/*
* Copyright 2002-2013 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.net.URI;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.protocol.HTTP;
import org.apache.http.protocol.HttpContext;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
/**
* {@link org.springframework.http.client.ClientHttpRequest} implementation that uses
* Apache HttpComponents HttpClient to execute requests.
*
* Created via the {@link HttpComponentsClientHttpRequestFactory}.
*
* @author Oleg Kalnichevski
* @author Arjen Poutsma
* @since 3.1
* @see HttpComponentsClientHttpRequestFactory#createRequest(URI, HttpMethod)
*/
final class HttpComponentsClientHttpRequest extends AbstractBufferingClientHttpRequest {
private final CloseableHttpClient httpClient;
private final HttpUriRequest httpRequest;
private final HttpContext httpContext;
public HttpComponentsClientHttpRequest(CloseableHttpClient httpClient, HttpUriRequest httpRequest, HttpContext httpContext) {
this.httpClient = httpClient;
this.httpRequest = httpRequest;
this.httpContext = httpContext;
}
@Override
public HttpMethod getMethod() {
return HttpMethod.valueOf(this.httpRequest.getMethod());
}
@Override
public URI getURI() {
return this.httpRequest.getURI();
}
@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);
}
CloseableHttpResponse httpResponse =
this.httpClient.execute(this.httpRequest, this.httpContext);
return new HttpComponentsClientHttpResponse(httpResponse);
}
/**
* Adds 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) {
for (Map.Entry> entry : headers.entrySet()) {
String headerName = entry.getKey();
if (!headerName.equalsIgnoreCase(HTTP.CONTENT_LEN) &&
!headerName.equalsIgnoreCase(HTTP.TRANSFER_ENCODING)) {
for (String headerValue : entry.getValue()) {
httpRequest.addHeader(headerName, headerValue);
}
}
}
}
}