//Example handler, in this case Excel rows are stored into an Apache Ignite cache
public class MappingSheetHandler extends SheetHandler {

			IgniteCache<BinaryObject, BinaryObject> mappingCache;

			protected Map<String, String> headerRowMapping = new HashedMap<>();

			protected LocationSheetHandler() {
				mappingCache = ignite.cache("mappings").withKeepBinary();
			}

			@Override
			protected boolean processSheet() {
				return "Sheet 1".equals(sheetName);
			}

			@Override
			protected void startSheet() {
				log.info(String.format("********************** Processing Mapping Sheet - %s ***************************", sheetName));
			}

			@Override
			protected void endSheet() {
				log.info(String.format("********************** Processed Mapping Sheet - %s ***************************", sheetName));
			}

			@Override
			protected void processRow() {
				if (rowNumber > 1 && !rowValues.isEmpty()) {
					String oldID = rowValues.get("A");
					String newID = rowValues.get("B");

					if (newID == null) {
						return;
					}

					String color = "white";
					CTXf style = rowStyles.get("A");
					if (style.getApplyFill()) {
						XSSFCellFill fill = stylesTable.getFillAt((int) style.getFillId());
						if ("FFFFFF00".contentEquals(fill.getFillForegroundColor().getARGBHex())) {
							color = "yellow";
						}

					}

					BinaryObjectBuilder keyBuilder = ignite.binary().builder("Key");
					keyBuilder.setField("srtype", "SomeType");
					keyBuilder.setField("srid", oldID);
					keyBuilder.setField("color", color);

          BinaryObjectBuilder valBuilder = ignite.binary().builder("Value");
					valBuilder.setField("trtype", "SomeType");
					valBuilder.setField("trid", newID);

					mappingCache.put(keyBuilder.build(), valBuilder.build());

				}
			}

		}
	}