Examples with UniqueHashCode org.supercsv.cellprocessor.constraint.UniqueHashCode used on opensource projects

Example 1 with UniqueHashCode

use of org.supercsv.cellprocessor.constraint.UniqueHashCode in project voltdb by VoltDB.

the class Symbols method loadFile.

public void loadFile(String filename) {
    // Schema for CSV file
    final CellProcessor[] processors = new CellProcessor[] { // Symbol
    new UniqueHashCode(), // Name
    new NotNull(), // LastSale
    new NotNull(), // MarketCap
    new NotNull(), // ADR TSO
    new NotNull(), // IPOyear
    new NotNull(), // Sector
    new NotNull(), // Industry
    new NotNull(), // Summary Quote
    new NotNull(), // blank column
    new Optional() };
    ICsvMapReader mapReader = null;
    try {
        mapReader = new CsvMapReader(new FileReader(filename), CsvPreference.STANDARD_PREFERENCE);
        // the header columns are used as the keys to the Map
        final String[] header = mapReader.getHeader(true);
        Map<String, Object> tuple;
        int rowsRead = 0;
        while ((tuple = mapReader.read(header, processors)) != null) {
            Symbol s = new Symbol();
            s.symbol = (String) tuple.get("Symbol");
            String price = (String) tuple.get("LastSale");
            if (price.equals("n/a")) {
                price = "20";
            }
            BigDecimal priceBD = new BigDecimal(price);
            s.price = priceBD.multiply(BD10000).intValue();
            symbols.add(s);
            rowsRead++;
        }
        System.out.printf("Read %d rows from CSV file at: %s\n", rowsRead, filename);
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(-1);
    } finally {
        if (mapReader != null) {
            try {
                mapReader.close();
            } catch (Exception e) {
            }
        }
    }
}