org.openl.util.NumberUtils Maven / Gradle / Ivy
package org.openl.util;
/**
* @author Andrei Astrouski
*/
public class NumberUtils {
/**
* Minimal negative float value.
*/
public static final double FLOAT_MIN_VALUE = -Float.MAX_VALUE;
/**
* Minimal negative double value.
*/
public static final double DOUBLE_MIN_VALUE = -Double.MAX_VALUE;
private NumberUtils() {
}
public static Object intOrDouble(double value) {
int intValue = (int) value;
if (value == intValue) {
return intValue;
}
return value;
}
public static Number getMinValue(Class numberClass) {
Number minValue = null;
if (numberClass == byte.class || numberClass == Byte.class) {
minValue = Byte.MIN_VALUE;
} else if (numberClass == short.class || numberClass == Short.class) {
minValue = Short.MIN_VALUE;
} else if (numberClass == int.class || numberClass == Integer.class) {
minValue = Integer.MIN_VALUE;
} else if (numberClass == long.class || numberClass == Long.class) {
minValue = Long.MIN_VALUE;
} else if (numberClass == float.class || numberClass == Float.class) {
minValue = FLOAT_MIN_VALUE;
} else if (numberClass == double.class || numberClass == Double.class) {
minValue = DOUBLE_MIN_VALUE;
}
return minValue;
}
public static Number getMaxValue(Class numberClass) {
Number minValue = null;
if (numberClass == byte.class || numberClass == Byte.class) {
minValue = Byte.MAX_VALUE;
} else if (numberClass == short.class || numberClass == Short.class) {
minValue = Short.MAX_VALUE;
} else if (numberClass == int.class || numberClass == Integer.class) {
minValue = Integer.MAX_VALUE;
} else if (numberClass == long.class || numberClass == Long.class) {
minValue = Long.MAX_VALUE;
} else if (numberClass == float.class || numberClass == Float.class) {
minValue = Float.MAX_VALUE;
} else if (numberClass == double.class || numberClass == Double.class) {
minValue = Double.MAX_VALUE;
}
return minValue;
}
}