/*-
* Copyright 2016 Diamond Light Source Ltd.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package uk.ac.diamond.scisoft.analysis.processing.operations.externaldata;
import org.eclipse.january.dataset.Dataset;
import org.eclipse.january.dataset.DatasetUtils;
import org.eclipse.january.dataset.IDataset;
import uk.ac.diamond.scisoft.analysis.processing.operations.ErrorPropagationUtils;
public class SubtractExternalFrameOperation<T extends ExternalDataSelectedFramesModel> extends FrameMathsOperation<ExternalDataSelectedFramesModel> {
@Override
public String getId() {
return "uk.ac.diamond.scisoft.analysis.processing.operations.externaldata.SubtractExternalFrameOperation";
}
@Override
protected Dataset getData(IDataset ds) {
String path = ((ExternalDataSelectedFramesModel)model).getFilePath();
String dsName = ((ExternalDataSelectedFramesModel)model).getDatasetName();
Dataset d = null;
if (model.getStartFrame() == null && model.getEndFrame() == null){
d = DataUtils.getExternalFrameMatching(ds, model.getStartFrame(),model.getEndFrame(), path,dsName,this);
}
if (d != null) return d;
Dataset lFrame = data;
if (lFrame == null) {
synchronized(this) {
lFrame = data;
if (lFrame == null) {
lFrame = data = DataUtils.getExternalFrameAverage(ds, model.getStartFrame(),
model.getEndFrame(), path,dsName,this);
}
}
}
return lFrame;
}
@Override
protected Dataset performOperation(Dataset input, Dataset other) {
return ErrorPropagationUtils.subtractWithUncertainty(DatasetUtils.convertToDataset(input), other);
}
}