org.springframework.http.client.JdkClientHttpResponse Maven / Gradle / Ivy
/*
* Copyright 2023-2023 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.io.InputStream;
import java.net.http.HttpClient;
import java.net.http.HttpResponse;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.HttpStatusCode;
import org.springframework.util.CollectionUtils;
import org.springframework.util.LinkedCaseInsensitiveMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StreamUtils;
/**
* {@link ClientHttpResponse} implementation based on the Java {@link HttpClient}.
*
* @author Marten Deinum
* @author Arjen Poutsma
* @since 6.1
*/
class JdkClientHttpResponse implements ClientHttpResponse {
private final HttpResponse response;
private final HttpHeaders headers;
private final InputStream body;
public JdkClientHttpResponse(HttpResponse response) {
this.response = response;
this.headers = adaptHeaders(response);
InputStream inputStream = response.body();
this.body = (inputStream != null ? inputStream : InputStream.nullInputStream());
}
private static HttpHeaders adaptHeaders(HttpResponse response) {
Map> rawHeaders = response.headers().map();
Map> map = new LinkedCaseInsensitiveMap<>(rawHeaders.size(), Locale.ENGLISH);
MultiValueMap multiValueMap = CollectionUtils.toMultiValueMap(map);
multiValueMap.putAll(rawHeaders);
return HttpHeaders.readOnlyHttpHeaders(multiValueMap);
}
@Override
public HttpStatusCode getStatusCode() {
return HttpStatusCode.valueOf(this.response.statusCode());
}
@Override
public String getStatusText() {
// HttpResponse does not expose status text
if (getStatusCode() instanceof HttpStatus status) {
return status.getReasonPhrase();
}
else {
return "";
}
}
@Override
public HttpHeaders getHeaders() {
return this.headers;
}
@Override
public InputStream getBody() throws IOException {
return this.body;
}
@Override
public void close() {
try {
try {
StreamUtils.drain(this.body);
}
finally {
this.body.close();
}
}
catch (IOException ignored) {
}
}
}