public IpnbCell createCell() {
final IpnbCell cell;
if (cell_type.equals("markdown")) {
cell = new IpnbMarkdownCell(source, metadata);
} else if (cell_type.equals("code")) {
final List<IpnbOutputCell> outputCells = new ArrayList<IpnbOutputCell>();
for (CellOutputRaw outputRaw : outputs) {
outputCells.add(outputRaw.createOutput());
}
final Integer prompt = prompt_number != null ? prompt_number : execution_count;
cell =
new IpnbCodeCell(
language == null ? "python" : language,
input == null ? source : input,
prompt,
outputCells,
metadata);
} else if (cell_type.equals("raw")) {
cell = new IpnbRawCell(source);
} else if (cell_type.equals("heading")) {
cell = new IpnbHeadingCell(source, level, metadata);
} else {
cell = null;
}
return cell;
}