Examples with SKIP tech.tablesaw.api.ColumnType.SKIP used on opensource projects

Example 1 with SKIP

use of tech.tablesaw.api.ColumnType.SKIP in project symja_android_library by axkr.

the class FileReader method parseRows.

protected Table parseRows(ReadOptions options, boolean headerOnly, Reader reader, ReadOptions.ColumnTypeReadOptions columnTypeReadOptions, AbstractParser<?> parser, int sampleSize) {
    parser.beginParsing(reader);
    Table table = Table.create(options.tableName());
    List<String> headerRow = Lists.newArrayList(getColumnNames(options, columnTypeReadOptions, parser));
    @SuppressWarnings({ "UnstableApiUsage", "OptionalGetWithoutIsPresent" }) ColumnType[] types = Streams.mapWithIndex(headerRow.stream(), (columnName, idx) -> columnTypeReadOptions.columnType((int) idx, columnName)).filter(Optional::isPresent).map(Optional::get).toArray(ColumnType[]::new);
    for (int x = 0; x < types.length; x++) {
        if (types[x] != SKIP) {
            String columnName = cleanName(headerRow.get(x));
            if (Strings.isNullOrEmpty(columnName)) {
                columnName = "Column " + table.columnCount();
            }
            Column<?> newColumn = types[x].create(columnName);
            table.addColumns(newColumn);
        }
    }
    if (!headerOnly) {
        String[] columnNames = selectColumnNames(headerRow, types);
        int[] columnIndexes = new int[columnNames.length];
        for (int i = 0; i < columnIndexes.length; i++) {
            // get the index in the original table, which includes skipped fields
            columnIndexes[i] = headerRow.indexOf(columnNames[i]);
        }
        addRows(options, types, parser, table, columnIndexes, sampleSize);
    }
    return table;
}