public Stock addStock(Stock stock) {
try {
if (isValidStock(stock)) {
return stocks.put(stock.getSymbol(), stock);
}
} catch (IllegalArgumentException e) {
logger.warn("Ignore from adding: " + e.getMessage());
}
return null;
}
public boolean isValidStock(Stock stock) throws IllegalArgumentException {
Preconditions.checkArgument(stock != null, "Invalid Stock, null reference.");
Preconditions.checkArgument(stock.getParValue() > 0, "Invalid Trade, invalid ParValue field.");
Preconditions.checkArgument(stock.getSymbol() != null, "Invalid Trade, missing Symbol field.");
Preconditions.checkArgument(stock.getType() != null, "Invalid Trade, missing Type field.");
switch (stock.getType()) {
case PREFERRED:
Preconditions.checkArgument(
stock.getFixedDividend() != null, "Invalid Trade, missing FixDividend field.");
case COMMON:
Preconditions.checkArgument(
stock.getLastDividend() > 0, "Invalid Trade, LastDividend should be grater than 0.");
}
return true;
}