/*
* 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 java.util.Map;
import io.netty.buffer.ByteBufInputStream;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.http.FullHttpResponse;
import org.springframework.http.HttpHeaders;
import org.springframework.util.Assert;
/**
* {@link org.springframework.http.client.ClientHttpResponse} implementation that uses
* Netty 4 to execute requests.
*
* @author Arjen Poutsma
* @since 4.2
*/
class Netty4ClientHttpResponse extends AbstractClientHttpResponse {
private final ChannelHandlerContext context;
private final FullHttpResponse nettyResponse;
private final ByteBufInputStream body;
private HttpHeaders headers;
Netty4ClientHttpResponse(ChannelHandlerContext context, FullHttpResponse nettyResponse) {
Assert.notNull(context, "'context' must not be null");
Assert.notNull(nettyResponse, "'nettyResponse' must not be null");
this.context = context;
this.nettyResponse = nettyResponse;
this.body = new ByteBufInputStream(this.nettyResponse.content());
this.nettyResponse.retain();
}
@Override
public int getRawStatusCode() throws IOException {
return this.nettyResponse.getStatus().code();
}
@Override
public String getStatusText() throws IOException {
return this.nettyResponse.getStatus().reasonPhrase();
}
@Override
public HttpHeaders getHeaders() {
if (this.headers == null) {
HttpHeaders headers = new HttpHeaders();
for (Map.Entry<String, String> entry : this.nettyResponse.headers()) {
headers.add(entry.getKey(), entry.getValue());
}
this.headers = headers;
}
return this.headers;
}
@Override
public InputStream getBody() throws IOException {
return this.body;
}
@Override
public void close() {
this.nettyResponse.release();
this.context.close();
}
}