Examples of org.apache.commons.fileupload.FileItem

org.apache.commons.fileupload.FileItem

This class represents a file or form item that was received within a multipart/form-data POST request.
After retrieving an instance of this class from a {@link org.apache.commons.fileupload.FileUpload FileUpload} instance (see{@link org.apache.commons.fileupload.servlet.ServletFileUpload#parseRequest(javax.servlet.http.HttpServletRequest)}), you may either request all contents of the file at once using {@link #get()} orrequest an {@link java.io.InputStream InputStream} with{@link #getInputStream()} and process the file without attempting to loadit into memory, which may come handy with large files.
While this interface does not extend javax.activation.DataSource per se (to avoid a seldom used dependency), several of the defined methods are specifically defined with the same signatures as methods in that interface. This allows an implementation of this interface to also implement javax.activation.DataSource with minimal additional work. @version $Id: FileItem.java 1454690 2013-03-09 12:08:48Z simonetripodi $ @since 1.3 additionally implements FileItemHeadersSupport

            ServletFileUpload upload = new ServletFileUpload(factory);
            upload.setSizeMax(-1);
            upload.setHeaderEncoding("UTF8");
            try {
                for (Iterator it = upload.parseRequest(request).iterator(); it.hasNext();) {
                    FileItem fi = (FileItem) it.next();
                    if (!fi.isFormField()) {
                        if (fi.getName() != null && fi.getName().length() > 0) {
                            tmpWar = new File(System.getProperty("java.io.tmpdir"), FilenameUtils.getName(fi.getName()));
                            fi.write(tmpWar);
                        }
                    } else if ("context".equals(fi.getFieldName())) {
                        contextName = fi.getString();
                    } else if ("update".equals(fi.getFieldName()) && "yes".equals(fi.getString())) {
                        update = true;
                    } else if ("compile".equals(fi.getFieldName()) && "yes".equals(fi.getString())) {
                        compile = true;
                    } else if ("discard".equals(fi.getFieldName()) && "yes".equals(fi.getString())) {
                        discard = true;
                    }
                }
            } catch (Exception e) {
                logger.fatal("Could not process file upload", e);

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  {
    if(!ServletFileUpload.isMultipartContent(request))
      return;


    // 1. Parsing the form fields...
    FileItem item = null;
    String comment = null;
    FileItem imageFileFormField = null;
    try
    {
      FileItemFactory factory = new DiskFileItemFactory();
      ServletFileUpload upload = new ServletFileUpload(factory);
      List<?> items = upload.parseRequest(request);

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        SshSession session = new SshSession( request );
        String connectionInfo = "";
        String channelId = "";
        String fileName = "";
        FileItem file = null;
        String redirectPage = PAGE_HOME;


        try
        {
            // Parse the parts into Parameters and the file.
            List files = upload.parseRequest( request );
            Iterator iter = files.iterator();
            while (iter.hasNext())
            {
                FileItem fileItem = (FileItem) iter.next();
                String fieldName;
                if( fileItem.isFormField() )
                {
                    fieldName = fileItem.getFieldName();
                    if( PARAMETER_CONNECTION.equals( fieldName ) )
                    {
                        connectionInfo = fileItem.getString();
                    }
                    else if( PARAMETER_CHANNEL.equals( fieldName ) )
                    {
                        channelId = fileItem.getString();


                    }
                    else if( PARAMETER_FILENAME.equals( fieldName ) )
                    {
                        fileName = fileItem.getString();
                    }
                }
                else
                {
                    file = fileItem;

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        Map<String,List<String>> tmpParams = new HashMap<String,List<String>>();
        Map<String,List<MultipartFile>> tmpFiles = new HashMap<String,List<MultipartFile>>();
        
        List<?> items = upload.parseRequest(request);
        for(Object itemObject: items){
            FileItem item = (FileItem)itemObject;
            if (item.isFormField()){
                List<String> list1 = tmpParams.get(item.getFieldName());
                if (list1 == null){
                    list1 = new ArrayList<String>();
                    tmpParams.put(item.getFieldName(), list1);
                }
                try{
                    String encoding = request.getCharacterEncoding();
                    String value1 = encoding == null ? item.getString() : item.getString(encoding);
                    list1.add(value1);
                }
                catch(UnsupportedEncodingException e){
                    throw new FileUploadException(e.getMessage());
                }
            }
            else{
                List<MultipartFile> list2 = tmpFiles.get(item.getFieldName());
                if (list2 == null){
                    list2 = new ArrayList<MultipartFile>();
                    tmpFiles.put(item.getFieldName(), list2);
                }
                list2.add(new MultipartFile(item));
            }
        }

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  }


    public void doPost( HttpServletRequest req, HttpServletResponse res ){


      File disk = null;
      FileItem item = null;
      FileItemFactory factory = new DiskFileItemFactory();
      Iterator iter = null;
      List items = null;
      ServletFileUpload upload = new ServletFileUpload( factory );
      ServletOutputStream out = null;
      try{
        items = upload.parseRequest( req );
        iter = items.iterator();
        res.setContentType( " text/xml");
        out = res.getOutputStream();
        out.println( " <response> " );
        while( iter.hasNext() ){
          item = ( FileItem )iter.next();
          if( item.isFormField() ){
            out.println( "<field name=\"" + item.getFieldName() + "\"value=\"" + item.getString() + "\" />"  );
          }
          else{
            String wsdlLocationParam = req.getParameter("wsdlLocation");
            //System.out.println("$$$$$$$$$$$$$$$$$$$$$$___________req.getParameter(wsdlLocation) : "+wsdlLocationParam);
            wsdlLocationParam = wsdlLocationParam.replace('\\', File.separatorChar);
            //System.out.println("$$$$$$$$$$$$$$$$$___________req.getParameter(wsdlLocation) : "+wsdlLocationParam);
            String path = getServletContext().getRealPath("/")+wsdlLocationParam;
            path = path.replace('\\', File.separatorChar);
            //System.out.println("$$$$$$$$$$$$$$$$$path : "+path);
            disk = new File( path, item.getName() );
            item.write( disk );
            out.println( "<file name=\"" + item.getName() + "\" size=\""+ item.getSize()+" path=\"" + getInitParameter("uploadPath") + "\" />"  );


          }


        }

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      (OutputData) request.getAttribute(StandardServletServiceAdapterComponent.OUTPUT_DATA_REQUEST_ATTRIBUTE);
    ServletFileUploadOutputExtension fileUpload = 
      (ServletFileUploadOutputExtension) output.narrow(ServletFileUploadOutputExtension.class);    
    
    if (fileUpload.getUploadedFile(controlName)!= null) {
      FileItem file = fileUpload.getUploadedFile(controlName);
      String mimeType = file.getContentType();


      if (permittedMimeFileTypes == null || permittedMimeFileTypes.contains(mimeType)) {


        innerData = new FileInfo(file);
      }

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      List /* FileItem */items = upload.parseRequest(request);


      // Process the uploaded items
      Iterator iter = items.iterator();
      while (iter.hasNext()) {
        FileItem item = (FileItem) iter.next();


        if (!item.isFormField()) {
          fileItems.put(item.getFieldName(), item);
        }
        else {
          List parameterValues = (List) parameterLists.get(item.getFieldName());
          
          if (parameterValues == null) {
            parameterValues = new ArrayList();    
            parameterLists.put(item.getFieldName(), parameterValues);
          }
          
          parameterValues.add(item.getString());
        }
      }
      
      output.extend(
          ServletFileUploadOutputExtension.class,

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            if (fileList != null)
            {
                for (Iterator it = fileList.iterator(); it.hasNext();)
                {
                    FileItem fi = (FileItem) it.next();
                    if (fi.isFormField())
                    {
                        log.debug("Found an simple form field: " + fi.getFieldName() +", adding value " + fi.getString());


                        String value = null;
                        try
                        {
                            value = fi.getString(params.getCharacterEncoding());
                        }
                        catch (UnsupportedEncodingException e)
                        {
                            log.error(params.getCharacterEncoding()
                                    + " encoding is not supported."
                                    + "Used the default when reading form data.");
                            value = fi.getString();
                        }
                        params.add(fi.getFieldName(), value);
                    }
                    else
                    {
                        log.debug("Found an uploaded file: " + fi.getFieldName());
                        log.debug("It has " + fi.getSize() + " Bytes and is " + (fi.isInMemory() ? "" : "not ") + "in Memory");
                        log.debug("Adding FileItem as " + fi.getFieldName() + " to the params");
                        params.add(fi.getFieldName(), fi);
                    }
                }
            }
        }
        catch (FileUploadException e)

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        ParameterParser pp = new DefaultParameterParser();
        DefaultFileItemFactory factory = new DefaultFileItemFactory(10240, null);


        assertEquals("keySet() is not empty!", 0, pp.keySet().size());


        FileItem test = factory.createItem("upload-field", "application/octet-stream", false, null);
        pp.add("upload-field", test);


        assertEquals("FileItem not found in keySet()!", 1, pp.keySet().size());


        Iterator it = pp.keySet().iterator();

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    public void testToString()
    {
        ParameterParser pp = new DefaultParameterParser();
        DefaultFileItemFactory factory = new DefaultFileItemFactory(10240, null);


        FileItem test = factory.createItem("upload-field", "application/octet-stream", false, null);
        pp.add("upload-field", test);


        assertTrue(pp.toString().startsWith("{upload-field=[org.apache.commons.fileupload.DefaultFileItem"));
    }

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