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/*
 * 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.
 */

/**
 * 

NOTE: This code has been copied from commons-fileupload trunk * 1.3 and commons-io 1.4 and package renamed to avoid clashes with * any web apps that may wish to use these libraries. *

*

* A component for handling HTML file uploads as specified by * RFC 1867. * This component provides support for uploads within both servlets (JSR 53) * and portlets (JSR 168). *

*

* While this package provides the generic functionality for file uploads, * these classes are not typically used directly. Instead, normal usage * involves one of the provided extensions of * {@link org.apache.tomcat.util.http.fileupload.FileUpload FileUpload} * together with a factory for * {@link org.apache.tomcat.util.http.fileupload.FileItem FileItem} instances, * such as * {@link org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory DiskFileItemFactory}. *

*

* The following is a brief example of typical usage in a servlet, storing * the uploaded files on disk. *

*
public void doPost(HttpServletRequest req, HttpServletResponse res) {
 *   DiskFileItemFactory factory = new DiskFileItemFactory();
 *   // maximum size that will be stored in memory
 *   factory.setSizeThreshold(4096);
 *   // the location for saving data that is larger than getSizeThreshold()
 *   factory.setRepository(new File("/tmp"));
 *
 *   ServletFileUpload upload = new ServletFileUpload(factory);
 *   // maximum size before a FileUploadException will be thrown
 *   upload.setSizeMax(1000000);
 *
 *   List fileItems = upload.parseRequest(req);
 *   // assume we know there are two files. The first file is a small
 *   // text file, the second is unknown and is written to a file on
 *   // the server
 *   Iterator i = fileItems.iterator();
 *   String comment = ((FileItem)i.next()).getString();
 *   FileItem fi = (FileItem)i.next();
 *   // file name on the client
 *   String fileName = fi.getName();
 *   // save comment and file name to database
 *   ...
 *   // write the file
 *   fi.write(new File("/www/uploads/", fileName));
 * }
 * 
*

* In the example above, the first file is loaded into memory as a * {@code String}. Before calling the {@code getString} method, * the data may have been in memory or on disk depending on its size. The * second file we assume it will be large and therefore never explicitly * load it into memory, though if it is less than 4096 bytes it will be * in memory before it is written to its final location. When writing to * the final location, if the data is larger than the threshold, an attempt * is made to rename the temporary file to the given location. If it cannot * be renamed, it is streamed to the new location. *

*

* Please see the FileUpload * User Guide * for further details and examples of how to use this package. *

*/ package org.apache.tomcat.util.http.fileupload;




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