@Override
    public IConversionContext init(String path) {

      IConversionContext context = ServiceHolder.getConversionService().open(path);

      return setupwizard(context);
    }
  private int getAmountOfWork(IConversionContext context) {
    int c = 0;
    String name = context.getDatasetNames().get(0);
    int[] dd = null;
    Map<Integer, String> sliceDimensions = context.getSliceDimensions();

    for (String path : context.getFilePaths()) {
      try {
        IMetadata metadata = ServiceHolder.getLoaderService().getMetadata(path, null);
        int[] s = metadata.getDataShapes().get(name);
        if (s == null) {
          try {
            s =
                ServiceHolder.getLoaderService()
                    .getData(path, null)
                    .getLazyDataset(name)
                    .getShape();
          } catch (Exception e) {
            logger.warn("Can't get shape to calculate work from");
          }
        }

        Slice[] slices = Slicer.getSliceArrayFromSliceDimensions(sliceDimensions, s);
        SliceND slice = new SliceND(s, slices);
        int[] nShape = slice.getShape();

        if (dd == null) {
          dd = Slicer.getDataDimensions(s, context.getSliceDimensions());
          Arrays.sort(dd);
        }
        int n = 1;
        for (int i = 0; i < nShape.length; i++) {
          if (Arrays.binarySearch(dd, i) < 0) n *= nShape[i];
        }

        c += n;

      } catch (Exception e) {
        logger.warn("cannot load metadata for {}, assuming one frame", path);
        c++;
      }
    }
    return c;
  }
  private void updateSliceWidget(String path) {
    try {
      IDataHolder dh = ServiceHolder.getLoaderService().getData(path, new IMonitor.Stub());
      ILazyDataset lazy = dh.getLazyDataset(fileManager.getContext().getDatasetNames().get(0));
      int[] shape = lazy.getShape();

      int[] dd = Slicer.getDataDimensions(shape, fileManager.getContext().getSliceDimensions());
      Slice[] slices =
          Slicer.getSliceArrayFromSliceDimensions(
              fileManager.getContext().getSliceDimensions(), shape);
      csw.setDatasetShapeInformation(shape, dd.clone(), slices);
      String ss = Slice.createString(csw.getCurrentSlice());
      currentSliceLabel.setText("Current slice of data: [" + ss + "]");
      currentSliceLabel.getParent().layout(true);
    } catch (Exception e) {
      logger.error(e.getMessage(), e);
    }
  }
    @Override
    protected IStatus run(IProgressMonitor monitor) {
      output.setEnabled(false);
      EscapableSliceVisitor sliceVisitor = null;
      try {

        if (path == null) path = context.getFilePaths().get(0);

        final IDataHolder dh = ServiceHolder.getLoaderService().getData(path, new IMonitor.Stub());
        ILazyDataset lazyDataset = dh.getLazyDataset(context.getDatasetNames().get(0));

        if (lazyDataset == null) {
          logger.error("Selected dataset not in file!!!!");
          return Status.CANCEL_STATUS;
        }
        // take a local view
        lazyDataset = lazyDataset.getSliceView();

        Map<Integer, String> axesNames = context.getAxesNames();

        if (axesNames != null) {
          AxesMetadata am =
              ServiceHolder.getLoaderService().getAxesMetadata(lazyDataset, path, axesNames);
          lazyDataset.setMetadata(am);
          //					AxesMetadata axMeta = SlicedDataUtils.createAxisMetadata(path, lazyDataset,
          // axesNames);
          //					if (axMeta != null) lazyDataset.setMetadata(axMeta);
          //					else lazyDataset.clearMetadata(AxesMetadata.class);
        }

        int[] dataDims =
            Slicer.getDataDimensions(lazyDataset.getShape(), context.getSliceDimensions());
        Slice[] s = csw.getCurrentSlice();
        // Plot input, probably a bit wasteful to do each time
        IDataset firstSlice = null;
        if (lazyDataset instanceof IDataset) {
          firstSlice = ((IDataset) lazyDataset).getSliceView(s);
        } else {
          firstSlice = lazyDataset.getSlice(s);
        }
        eventManager.sendInitialDataUpdate(firstSlice.getSliceView().squeeze());
        MetadataPlotUtils.plotDataWithMetadata(firstSlice, input);

        IOperation<? extends IOperationModel, ? extends OperationData>[] ops = getOperations();
        if (ops == null) {
          output.clear();
          return Status.OK_STATUS;
        }
        // Only run what is necessary
        if (inputData != null) {

          if (inputData.getCurrentOperation() != end) {
            int pos = 0;
            for (int i = 0; i < ops.length; i++) {
              if (ops[i] == end) break;
              if (ops[i] == inputData.getCurrentOperation()) {
                pos = i;
                pos++;
                break;
              }
            }

            if (pos != 0) {
              firstSlice = inputData.getInputData();
              ops = Arrays.copyOfRange(ops, pos - 1, ops.length);
            }

          } else {
            firstSlice = inputData.getInputData();
            ops = new IOperation[] {inputData.getCurrentOperation()};
          }
        }

        SourceInformation si =
            new SourceInformation(path, context.getDatasetNames().get(0), lazyDataset);
        SliceInformation sli = csw.getCurrentSliceInformation();
        // TODO replace with check shape
        firstSlice.setMetadata(new SliceFromSeriesMetadata(si, sli));

        //				OriginMetadataImpl om = new OriginMetadataImpl(lazyDataset, viewSlice, dataDims, path,
        // context.getDatasetNames().get(0));
        //				om.setCurrentSlice(csw.getCurrentSlice());

        //				lazyDataset.setMetadata(om);

        sliceVisitor =
            getSliceVisitor(
                ops,
                lazyDataset,
                Slicer.getDataDimensions(lazyDataset.getShape(), context.getSliceDimensions()));
        sliceVisitor.setEndOperation(end);
        long start = System.currentTimeMillis();
        sliceVisitor.visit(firstSlice);
        inputData = sliceVisitor.getOperationInputData();
        eventManager.sendInputDataUpdate(inputData);
        logger.debug("Ran in: " + (System.currentTimeMillis() - start) / 1000. + " s");
        eventManager.sendErrorUpdate(null);

      } catch (OperationException e) {
        logger.error(e.getMessage(), e);
        eventManager.sendErrorUpdate(e);
        return Status.CANCEL_STATUS;
      } catch (Exception e) {
        logger.error(e.getMessage(), e);

        String message = e.getMessage();
        if (message == null) message = "Unexpected error!";
        eventManager.sendErrorUpdate(new OperationException(null, message));
        return Status.CANCEL_STATUS;
      } finally {
        if (sliceVisitor != null) {
          inputData = sliceVisitor.getOperationInputData();
          eventManager.sendInputDataUpdate(inputData);
        }
        output.setEnabled(true);
      }

      return Status.OK_STATUS;
    }