// Copyright 2005 The Apache Software Foundation
//
// 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.apache.tapestry.multipart;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.hivemind.ApplicationRuntimeException;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.util.List;
import java.util.Map;
/**
* Implementation of {@link org.apache.tapestry.multipart.MultipartDecoder} that
* is based on <a href="http://jakarta.apache.org/commons/fileupload/">Jakarta
* FileUpload </a>.
*
* @author Howard M. Lewis Ship
* @author Joe Panico
* @since 4.0
*/
public class MultipartDecoderImpl extends AbstractMultipartDecoder implements ServletMultipartDecoder
{
/* maximum size of file allowed to be uploaded */
protected long _maxSize = 10000000;
public HttpServletRequest decode(HttpServletRequest request)
{
_encoding = request.getCharacterEncoding();
ServletFileUpload upload = createFileUpload();
try
{
List fileItems = upload.parseRequest(request);
processFileItems(fileItems);
}
catch (FileUploadException ex)
{
throw new ApplicationRuntimeException(MultipartMessages.unableToDecode(ex), ex);
}
Map parameterMap = buildParameterMap();
return new UploadFormParametersWrapper(request, parameterMap);
}
private ServletFileUpload createFileUpload()
{
FileItemFactory factory = new DiskFileItemFactory(_thresholdSize, new File(_repositoryPath));
ServletFileUpload upload = new ServletFileUpload(factory);
// set maximum file upload size
upload.setSizeMax(_maxSize);
if (_encoding != null)
upload.setHeaderEncoding(_encoding);
return upload;
}
/**
* Sets the maximum size that an uploaded file will be allowed to have.
*
* @param maxSize
* The maximum size, in bytes.
*/
public void setMaxSize(long maxSize)
{
_maxSize = maxSize;
}
}