@Override
public void writeRow(List<?> row) {
Row record = sheet.createRow(sheet.getLastRowNum() + 1);
for (int i = 0; i < row.size(); i++) {
Cell cell = record.createCell(i);
Object value = row.get(i);
if (value == null) {
cell.setCellValue("");
} else if (value instanceof String) {
cell.setCellType(Cell.CELL_TYPE_STRING);
cell.setCellValue((String) value);
} else if (value instanceof Number) {
cell.setCellType(Cell.CELL_TYPE_NUMERIC);
cell.setCellValue(converters.convert(value, Double.class));
} else if (value instanceof Date || value instanceof DateTime || value instanceof Calendar) {
cell.setCellType(Cell.CELL_TYPE_NUMERIC);
cell.setCellStyle(dateCellStyle);
cell.setCellValue(converters.convert(value, Date.class));
} else if (value instanceof Boolean) {
cell.setCellType(Cell.CELL_TYPE_BOOLEAN);
cell.setCellValue((Boolean) value);
} else {
cell.setCellType(Cell.CELL_TYPE_STRING);
cell.setCellValue(converters.convert(value, String.class));
}
}
}
@Override
public void setDateTimePattern(String dateTimePattern) {
this.dateTimePattern = dateTimePattern;
DateTimeConverter dtConverter = (DateTimeConverter) converters.lookup(Date.class);
dtConverter.setDateTimePattern(dateTimePattern);
dateCellStyle = workbook.createCellStyle();
CreationHelper helper = workbook.getCreationHelper();
dateCellStyle.setDataFormat(helper.createDataFormat().getFormat(dateTimePattern));
}
@Override
public void writeItem(Map<String, ?> item) {
List<Object> row = new ArrayList<>();
for (String key : getHeader()) {
row.add(item.get(key));
}
if (this.type != null) {
for (int i = 0; i < row.size(); i++) {
Class clazz = (i < this.type.size() ? this.type.get(i) : null);
if (clazz != null) row.set(i, converters.convert(row.get(i), clazz));
}
}
writeRow(row);
}