public int compare()

in empire-db/src/main/java/org/apache/empire/commons/ValueUtils.java [224:263]

• 33 lines of code
• 20 McCabe index (conditional complexity)

    public int compare(Object o1, Object o2)
    {
        // simple case
        if (o1==o2)
            return 0;
        // Check for Empty Values
        if (isEmpty(o1))
            return isEmpty(o2) ? 0 : -1;
        if (isEmpty(o2))
            return isEmpty(o1) ? 0 :  1;
        // Check classes
        if (o1.getClass().equals(o2.getClass()))
        {   // Check if object implements comparable
            if (o1 instanceof Comparable)
                return ((Comparable<Object>)o1).compareTo(o2);
            if (o2 instanceof Comparable)
                return ((Comparable<Object>)o2).compareTo(o1);
        }    
        // Use equal check first
        if (o1.equals(o2) || o2.equals(o1))
            return 0;
        // Compare Numbers
        if (o1 instanceof Number && o2 instanceof Number)
        {   // boolean test = obj1.equals(obj2);
            double d1 = ((Number)o1).doubleValue();
            double d2 = ((Number)o2).doubleValue();
            return ((d1<d2) ? -1 : ((d1>d2) ? 1 : 0));
        }
        // Compare Date with LocalDate / LocalDateTime
        if (o1 instanceof Temporal && o2 instanceof Date)
        {   // swap
            Object tmp = o2; o2 = o1; o1 = tmp; 
        }
        if (o1 instanceof Date && o2 instanceof LocalDate)
            return compare(o1, DateUtils.toDate((LocalDate)o2));
        if (o1 instanceof Date && o2 instanceof LocalDateTime)
            return compare(o1, DateUtils.toDate((LocalDateTime)o2));
        // Compare Strings
        return o1.toString().compareTo(o2.toString());
    }