/**
* Copyright 2005-2014 Restlet
*
* The contents of this file are subject to the terms of one of the following
* open source licenses: Apache 2.0 or or EPL 1.0 (the "Licenses"). You can
* select the license that you prefer but you may not use this file except in
* compliance with one of these Licenses.
*
* You can obtain a copy of the Apache 2.0 license at
* http://www.opensource.org/licenses/apache-2.0
*
* You can obtain a copy of the EPL 1.0 license at
* http://www.opensource.org/licenses/eclipse-1.0
*
* See the Licenses for the specific language governing permissions and
* limitations under the Licenses.
*
* Alternatively, you can obtain a royalty free commercial license with less
* limitations, transferable or non-transferable, directly at
* http://restlet.com/products/restlet-framework
*
* Restlet is a registered trademark of Restlet S.A.S.
*/
package org.restlet.ext.fileupload;
import java.io.IOException;
import java.util.List;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.FileUploadException;
import org.restlet.Request;
import org.restlet.representation.Representation;
/**
* High level API for processing file uploads. This class handles multiple files
* per single HTML widget, sent using the "multipart/mixed" encoding type, as
* specified by RFC 1867. Use {@link #parseRequest(Request)} method to acquire a
* list of FileItems associated with a given HTML widget.<br>
* <br>
* How the data for individual parts is stored is determined by the factory used
* to create them; a given part may be in memory, on disk, or somewhere else.<br>
* <br>
* In addition, it is possible to use <a
* href="http://commons.apache.org/fileupload/streaming.html> FileUpload's
* streaming API</a> to prevent the intermediary storage step. For this, use the
* {@link #getItemIterator(org.apache.commons.fileupload.RequestContext)}
* method.
*
* @author Jerome Louvel
*/
public class RestletFileUpload extends
// [ifndef gae,jee] line
FileUpload
// [ifdef gae,jee] line uncomment
// org.apache.commons.fileupload.servlet.ServletFileUpload
{
/**
* Constructs an uninitialized instance of this class. A factory must be
* configured, using <code>setFileItemFactory()</code>, before attempting to
* parse request entity.
*
* @see RestletFileUpload#RestletFileUpload(FileItemFactory)
*/
public RestletFileUpload() {
super();
}
/**
* Constructs an instance of this class which uses the supplied factory to
* create <code>FileItem</code> instances.
*
* @see RestletFileUpload#RestletFileUpload()
*/
public RestletFileUpload(FileItemFactory fileItemFactory) {
super(fileItemFactory);
}
/**
* Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
* compliant <code>multipart/form-data</code> input representation. Note
* that this will not result in the writing of the parts on the disk but
* will instead allow you to use stream access.
*
* @param multipartForm
* The input representation.
* @return An iterator to instances of FileItemStream parsed from the
* request.
* @throws FileUploadException
* @throws IOException
* @see <a
* href="http://commons.apache.org/fileupload/streaming.html">FileUpload
* Streaming API</a>
*/
public FileItemIterator getItemIterator(Representation multipartForm)
throws FileUploadException, IOException {
return getItemIterator(new RepresentationContext(multipartForm));
}
// [ifndef gae] method
/**
* Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
* compliant <code>multipart/form-data</code> input representation. Note
* that this will result in the writing of the parts on the disk.
*
* @param multipartForm
* The multipart representation to be parsed.
* @return A list of <code>FileItem</code> instances parsed, in the order
* that they were transmitted.
* @throws FileUploadException
* if there are problems reading/parsing the request or storing
* files.
*/
public List<FileItem> parseRepresentation(Representation multipartForm)
throws FileUploadException {
return parseRequest(new RepresentationContext(multipartForm));
}
// [ifndef gae] method
/**
* Processes an <a href="http://www.ietf.org/rfc/rfc1867.txt">RFC 1867</a>
* compliant <code>multipart/form-data</code> input representation. Note
* that this will result in the writing of the parts on the disk.
*
* @param request
* The request containing the entity to be parsed.
* @return A list of <code>FileItem</code> instances parsed, in the order
* that they were transmitted.
* @throws FileUploadException
* if there are problems reading/parsing the request or storing
* files.
*/
public List<FileItem> parseRequest(Request request)
throws FileUploadException {
// [ifndef jee] instruction
return parseRequest(new RepresentationContext(request.getEntity()));
// [ifdef jee] instruction uncomment
// return
// parseRequest(org.restlet.ext.servlet.ServletUtils.getRequest(request));
}
}