Improve output: distinguish between failed assertions (failures) and unexpected exceptions (errors), and print a filtered stack trace for any exception.

2010-01-29 22:13:57 +00:00 · 2010-01-29 22:13:57 +00:00 · 4f2e303079
commit 4f2e303079
1839 changed files with 235630 additions and 0 deletions
--- a/webapp/web/fileupload/fileUploadProcess.jsp
+++ b/webapp/web/fileupload/fileUploadProcess.jsp
@ -0,0 +1,128 @@
+<%-- $This file is distributed under the terms of the license in /doc/license.txt$ --%>
+
+<%@ 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("<html><p>you need to submit a file.</p></html>");
+    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("<p>");       
+        out.write("fieldname: " + item.getFieldName() + " value: " + item.getString() );
+        out.write("</p>");        
+    }else{
+        System.out.println("fileUPloadProcess.jsp: attempting to upload a file" );
+        out.write("<p>");        
+        out.write("form field name: " + item.getFieldName()
+                +" filename: " + item.getName()
+                +" type: " + item.getContentType() 
+                +" isInMem: " + item.isInMemory() );               
+        out.write("</p>");
+        
+        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 " ;    
+}
+%>