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//
// ========================================================================
// Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.client;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import org.eclipse.jetty.http.HttpHeaders;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.BufferUtil;
import org.eclipse.jetty.util.StringUtil;
/**
* A exchange that retains response content for later use.
*/
public class ContentExchange extends CachedExchange
{
private int _bufferSize = 4096;
private String _encoding = "utf-8";
private ByteArrayOutputStream _responseContent;
private File _fileForUpload;
public ContentExchange()
{
super(false);
}
public ContentExchange(boolean cacheFields)
{
super(cacheFields);
}
public synchronized String getResponseContent() throws UnsupportedEncodingException
{
if (_responseContent != null)
return _responseContent.toString(_encoding);
return null;
}
public synchronized byte[] getResponseContentBytes()
{
if (_responseContent != null)
return _responseContent.toByteArray();
return null;
}
@Override
protected synchronized void onResponseStatus(Buffer version, int status, Buffer reason) throws IOException
{
if (_responseContent!=null)
_responseContent.reset();
super.onResponseStatus(version,status,reason);
}
@Override
protected synchronized void onResponseHeader(Buffer name, Buffer value) throws IOException
{
super.onResponseHeader(name, value);
int header = HttpHeaders.CACHE.getOrdinal(name);
switch (header)
{
case HttpHeaders.CONTENT_LENGTH_ORDINAL:
_bufferSize = BufferUtil.toInt(value);
break;
case HttpHeaders.CONTENT_TYPE_ORDINAL:
String mime = StringUtil.asciiToLowerCase(value.toString());
int i = mime.indexOf("charset=");
if (i > 0)
{
_encoding = mime.substring(i + 8);
i = _encoding.indexOf(';');
if (i > 0)
_encoding = _encoding.substring(0, i);
}
break;
}
}
@Override
protected synchronized void onResponseContent(Buffer content) throws IOException
{
super.onResponseContent(content);
if (_responseContent == null)
_responseContent = new ByteArrayOutputStream(_bufferSize);
content.writeTo(_responseContent);
}
@Override
protected synchronized void onRetry() throws IOException
{
if (_fileForUpload != null)
{
setRequestContent(null);
setRequestContentSource(getInputStream());
}
else
super.onRetry();
}
private synchronized InputStream getInputStream() throws IOException
{
return new FileInputStream(_fileForUpload);
}
public synchronized File getFileForUpload()
{
return _fileForUpload;
}
public synchronized void setFileForUpload(File fileForUpload) throws IOException
{
this._fileForUpload = fileForUpload;
setRequestContentSource(getInputStream());
}
}
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