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Buession Framework Http Client
/*
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.
*
* =========================================================================================================
*
* This software consists of voluntary contributions made by many individuals on behalf of the
* Apache Software Foundation. For more information on the Apache Software Foundation, please see
* .
*
* +-------------------------------------------------------------------------------------------------------+
* | License: http://www.apache.org/licenses/LICENSE-2.0.txt |
* | Author: Yong.Teng |
* | Copyright @ 2013-2019 Buession.com Inc. |
* +-------------------------------------------------------------------------------------------------------+
*/
package com.buession.httpclient.httpcomponents;
import com.buession.httpclient.core.ContentType;
import com.buession.httpclient.core.io.Releasable;
import org.apache.http.entity.AbstractHttpEntity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.Assert;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* @author Yong.Teng
*/
public class ChunkedInputStreamEntity extends InputStreamEntity {
private ReleasableInputStreamEntity notClosableRequestEntity;
private final static Logger logger = LoggerFactory.getLogger(ChunkedInputStreamEntity.class);
public ChunkedInputStreamEntity(InputStream content, long contentLength, ContentType contentType){
super(content, contentLength, contentType);
setChunked(true);
notClosableRequestEntity = new ReleasableInputStreamEntity(content, contentLength);
notClosableRequestEntity.setCloseDisabled(true);
notClosableRequestEntity.setContentType(contentType.toString());
}
@Override
public boolean isChunked(){
return true;
}
@Override
public boolean isRepeatable(){
return getContent().markSupported() || notClosableRequestEntity.isRepeatable();
}
@Override
public void writeTo(OutputStream output) throws IOException{
if(isFirstAttempt() == false && isRepeatable()){
getContent().reset();
}
setFirstAttempt(false);
notClosableRequestEntity.writeTo(output);
}
/**
* A releaseable HTTP entity that can control its inner inputstream's
* auto-close functionality on/off, and it will try to close its inner
* inputstream by default when the inputstream reaches EOF.
*/
public static class ReleasableInputStreamEntity extends AbstractHttpEntity implements Releasable {
private final InputStream content;
private final long length;
private boolean closeDisabled;
public ReleasableInputStreamEntity(final InputStream inputStream){
this(inputStream, -1);
}
public ReleasableInputStreamEntity(final InputStream inputStream, final long length){
this(inputStream, length, null);
}
public ReleasableInputStreamEntity(final InputStream inputStream, final ContentType contentType){
this(inputStream, -1, contentType);
}
public ReleasableInputStreamEntity(final InputStream inputStream, final long length, final ContentType
contentType){
super();
Assert.notNull(inputStream, "Source input stream");
this.content = inputStream;
this.length = length;
if(contentType != null){
setContentType(contentType.toString());
}
closeDisabled = false;
}
@Override
public boolean isRepeatable(){
return content.markSupported();
}
@Override
public InputStream getContent() throws IOException{
return content;
}
@Override
public long getContentLength(){
return length;
}
@Override
public void writeTo(final OutputStream outputStream) throws IOException{
Assert.notNull(outputStream, "Output stream");
final InputStream inputStream = content;
try{
final byte[] buffer = new byte[OUTPUT_BUFFER_SIZE];
int l;
if(length < 0){
// consume until EOF
while((l = inputStream.read(buffer)) != -1){
outputStream.write(buffer, 0, l);
}
}else{
// consume no more than length
long remaining = length;
while(remaining > 0){
l = inputStream.read(buffer, 0, (int) Math.min(OUTPUT_BUFFER_SIZE, remaining));
if(l == -1){
break;
}
outputStream.write(buffer, 0, l);
remaining -= l;
}
}
}finally{
close();
}
}
@Override
public boolean isStreaming(){
return true;
}
public boolean isCloseDisabled(){
return getCloseDisabled();
}
public boolean getCloseDisabled(){
return closeDisabled;
}
public void setCloseDisabled(boolean closeDisabled){
this.closeDisabled = closeDisabled;
}
@Override
public void release(){
doRelease();
}
public void close(){
if(closeDisabled == false){
doRelease();
}
}
private void doRelease(){
try{
content.close();
}catch(Exception e){
logger.error("Unexpected io exception when trying to close input stream", e);
}
}
}
}