<%-- $This file is distributed under the terms of the license in /doc/license.txt$ --%> <%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory" %> <%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload" %> <%@ page import="org.apache.commons.fileupload.FileItem" %> <%@ page import="java.util.Iterator" %> <%@ page import="java.util.List" %> <%@ page import="java.io.File" %> <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %> <%-- This is a jsp to handle uploading files. --%> <%-- It was written with Datastar in mind --%> <%-- This JSP code expects that the user is logged in, that a datastar project is specified, and that the request is a multipart POST. --%> <%-- Since this is for Datastar we need the URI of the user who is uploading this file, the URI of the project it is associated with and a project spcific directory to save the file to. %> <%! static final int MAX_IN_MEM_SIZE = 1024*1024 * 50 ; //50 Mbyte file limit %> <%-- http://vivo.library.cornell.edu/ns/0.1#coordinatorOf --%> <%-- http://vivo.library.cornell.edu/ns/0.1#resourceAuthor --%> <%! static final int MAX_IN_MEM_SIZE = 1024*1024 * 50; %> <% if( ! ServletFileUpload.isMultipartContent(request) ){ //return an error message0. out.write("

you need to submit a file.

"); return; } //Create a factory for disk-based file items DiskFileItemFactory factory = new DiskFileItemFactory(); factory.setSizeThreshold(MAX_IN_MEM_SIZE); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); upload.setSizeMax(MAX_IN_MEM_SIZE); // Parse the request List /* FileItem */ items = upload.parseRequest(request); String user = getUserUri(request); String project = getProjectUri(request); String dir = getDirectory(user,project,request); if( ! canWriteDirectory( dir )){ out.write( doDirectoryWriteError( dir ) ); return; } Iterator iter = items.iterator(); while( iter.hasNext()){ FileItem item = (FileItem)iter.next(); if( item.isFormField()){ out.write("

"); out.write("fieldname: " + item.getFieldName() + " value: " + item.getString() ); out.write("

"); }else{ System.out.println("fileUPloadProcess.jsp: attempting to upload a file" ); out.write("

"); out.write("form field name: " + item.getFieldName() +" filename: " + item.getName() +" type: " + item.getContentType() +" isInMem: " + item.isInMemory() ); out.write("

"); String fileLocation = dir + '/' + item.getName(); if( fileWithNameAlreadyExists( fileLocation ) ){ doFileExistsError( fileLocation ); return; } File uploadedFile = new File( fileLocation ); item.write( uploadedFile ); } } %> <%! public String getDirectory(String userUri, String projectUri, HttpServletRequest request){ //this should be stored in the model as a dataproperty on the project return "/usr/local/datastar/data"; } public String getUserUri( HttpServletRequest request ){ return "http://vivo.library.cornell.edu/ns/0.1#individual762"; //Medha Devare } public String getProjectUri( HttpServletRequest request ){ return "http://vivo.library.cornell.edu/ns/0.1#individual1"; //Mann Lib. } %> <%! public boolean canWriteDirectory( String dir ){ File df = new File(dir); //attempt to create directory if not found if( ! df.exists() ){ if( !df.mkdir() ) return false; } return df.canWrite(); } public String doDirectoryWriteError( String dir ) { return "The system could not save your file, contact you system" +" administrators and inform them that the directory " + dir + " is not writeable"; } public boolean fileWithNameAlreadyExists( String fileLocation ){ File f = new File(fileLocation); return f.exists(); } public String doFileExistsError( String file ) { return "There is already a file named " + file + " on the system. Please rename your file " ; } %>