arjansh commented on a change in pull request #230: dev/add datatypes to excel
columns
URL: https://github.com/apache/metamodel/pull/230#discussion_r330052845
##########
File path:
excel/src/main/java/org/apache/metamodel/excel/DefaultSpreadsheetReaderDelegate.java
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@@ -169,21 +182,84 @@ private MutableTable createTable(final Workbook wb,
final Sheet sheet) {
}
if (hasColumns) {
- createColumns(table, wb, row);
+ createColumns(table, wb, row, columnTypes);
}
}
return table;
}
+ private ColumnType[] getColumnTypes(final Sheet sheet, final Row row) {
+ final Iterator<Row> data = ExcelUtils.getRowIterator(sheet,
_configuration, false);
+ final int rowLength = row.getLastCellNum();
+ int eagerness = ExcelConfiguration.EAGER_READ;
+ final ColumnType[] columnTypes = new ColumnType[rowLength];
+
+ while (data.hasNext() && eagerness-- > 0) {
+ final Row currentRow = data.next();
+ if (currentRow.getRowNum() <
_configuration.getColumnNameLineNumber()) {
+ continue;
+ }
+ for (int index = 0; index < rowLength; index++) {
+ if (currentRow.getLastCellNum() == 0) {
+ continue;
+ }
+ columnTypes[index] = getColumnTypeFromRow(columnTypes[index],
currentRow, index);
Review comment:
I like it better if you don't pass the current value of the columnType at
the current index into the `getColumnTypeFromRow` method. I would move the
logic from the `checkColumnType(ColumnType, ColumnType) here, so that method
can be removed and the `getColumnTypeFromRow` just returns the ColumnType it
determines for its inspected cell.
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