private Collection<Layer> layersWithoutDataSource(Task task) {
ArrayList<Layer> layersWithoutDataSource = new ArrayList<Layer>();
for (Iterator i = task.getLayerManager().getLayers().iterator(); i.hasNext(); ) {
Layer layer = (Layer) i.next();
if (!layer.hasReadableDataSource()) {
layersWithoutDataSource.add(layer);
}
}
return layersWithoutDataSource;
}
public Task createTask() {
Task task = new Task();
// LayerManager shouldn't automatically add categories in its
// constructor.
// Sometimes we want to create a LayerManager with no categories
// (e.g. in OpenProjectPlugIn). [Jon Aquino]
task.getLayerManager().addCategory(StandardCategoryNames.WORKING);
task.getLayerManager().addCategory(StandardCategoryNames.SYSTEM);
task.setName("Task " + taskSequence++);
return task;
}