public void parseFileParts()

in wicket-core/src/main/java/org/apache/wicket/protocol/http/servlet/MultipartServletWebRequestImpl.java [142:236]
73 lines of code
9 McCabe index (conditional complexity)

	public void parseFileParts() throws FileUploadException
	{
		HttpServletRequest request = getContainerRequest();

		// The encoding that will be used to decode the string parameters
		// It should NOT be null at this point, but it may be
		// especially if the older Servlet API 2.2 is used
		String encoding = request.getCharacterEncoding();

		// The encoding can also be null when using multipart/form-data encoded forms.
		// In that case we use the [application-encoding] which we always demand using
		// the attribute 'accept-encoding' in wicket forms.
		if (encoding == null)
		{
			encoding = Application.get().getRequestCycleSettings().getResponseRequestEncoding();
		}

		AbstractFileUpload fileUpload = newFileUpload(encoding);

		List<FileItem> items;

		if (wantUploadProgressUpdates())
		{
			JakartaServletRequestContext ctx = new JakartaServletRequestContext(request)
			{
				@Override
				public InputStream getInputStream() throws IOException
				{
					return new CountingInputStream(super.getInputStream());
				}
			};
			totalBytes = request.getContentLength();

			onUploadStarted(totalBytes);
			try
			{
				items = fileUpload.parseRequest(ctx);
			}
			finally
			{
				onUploadCompleted();
			}
		}
		else
		{
			// try to parse the file uploads by using Apache Commons FileUpload APIs
			// because they are feature richer (e.g. progress updates, cleaner)
			items = fileUpload.parseRequest(new JakartaServletRequestContext(request));
			if (items.isEmpty())
			{
				// fallback to Servlet 3.0 APIs
				items = readServlet3Parts(request);
			}
		}

		// Loop through items
		for (final FileItem item : items)
		{
			// Get next item
			// If item is a form field
			if (item.isFormField())
			{
				// Set parameter value
				final String value;
				if (encoding != null)
				{
					try
					{
						value = item.getString(Charset.forName(encoding));
					}
					catch (IOException e)
					{
						throw new WicketRuntimeException(e);
					}
				}
				else
				{
					value = item.getString();
				}

				addParameter(item.getFieldName(), value);
			}
			else
			{
				List<FileItem> fileItems = files.get(item.getFieldName());
				if (fileItems == null)
				{
					fileItems = new ArrayList<>();
					files.put(item.getFieldName(), fileItems);
				}
				// Add to file list
				fileItems.add(item);
			}
		}
	}