private void saveLayer(java.io.File file, FilePlacement placement, ProgressMonitor monitor) {
monitor.beginTask(tr("Saving to file."), 1000);
OsmBuilder builder = new OsmBuilder(placement);
DataSet data =
builder.build(
this.data.getLayers(), OsmBuilder.Mode.Final, monitor.createSubTaskMonitor(500, false));
OsmDataLayer layer = new OsmDataLayer(data, file.getName(), file);
monitor.setCustomText(tr(" Writing to file"));
monitor.setTicks(500);
OsmExporter exporter = new OsmExporter();
try {
exporter.exportData(file, layer);
} catch (IOException e) {
// TODO:
}
monitor.finishTask();
}