/** Applies the operator to the given value */
public Object apply(Object pLeft, Object pRight, Logger pLogger) throws EvaluatException {
if (pLeft == null && pRight == null) {
if (pLogger.isLoggingWarning()) {
pLogger.logWarning(Constants.ARITH_OP_NULL, getOperatorSymbol());
}
return PrimitiveObjects.getInteger(0);
}
if (Coercions.isBigDecimal(pLeft)
|| Coercions.isBigInteger(pLeft)
|| Coercions.isBigDecimal(pRight)
|| Coercions.isBigInteger(pRight)) {
BigDecimal left =
(BigDecimal) Coercions.coerceToPrimitiveNumber(pLeft, BigDecimal.class, pLogger);
BigDecimal right =
(BigDecimal) Coercions.coerceToPrimitiveNumber(pRight, BigDecimal.class, pLogger);
try {
return left.divide(right, BigDecimal.ROUND_HALF_UP);
} catch (Exception exc) {
if (pLogger.isLoggingError()) {
pLogger.logError(Constants.ARITH_ERROR, getOperatorSymbol(), "" + left, "" + right);
}
return PrimitiveObjects.getInteger(0);
}
} else {
double left = Coercions.coerceToPrimitiveNumber(pLeft, Double.class, pLogger).doubleValue();
double right = Coercions.coerceToPrimitiveNumber(pRight, Double.class, pLogger).doubleValue();
try {
return PrimitiveObjects.getDouble(left / right);
} catch (Exception exc) {
if (pLogger.isLoggingError()) {
pLogger.logError(Constants.ARITH_ERROR, getOperatorSymbol(), "" + left, "" + right);
}
return PrimitiveObjects.getInteger(0);
}
}
}
/** Applies the operator to the given value */
public Object apply(Object pValue, Logger pLogger) throws EvaluatException {
// See if the value is null
if (pValue == null) {
return PrimitiveObjects.getBoolean(true);
}
// See if the value is a zero-length String
else if ("".equals(pValue)) {
return PrimitiveObjects.getBoolean(true);
}
// See if the value is a zero-length array
else if (pValue.getClass().isArray() && Array.getLength(pValue) == 0) {
return PrimitiveObjects.getBoolean(true);
}
// See if the value is an empty Map
else if (pValue instanceof Map && ((Map) pValue).isEmpty()) {
return PrimitiveObjects.getBoolean(true);
}
// See if the value is an empty Collection
else if (pValue instanceof Collection && ((Collection) pValue).isEmpty()) {
return PrimitiveObjects.getBoolean(true);
}
// Otherwise, not empty
else {
return PrimitiveObjects.getBoolean(false);
}
}
