public Object convertValue()

in core/src/main/java/org/apache/struts2/conversion/impl/XWorkBasicConverter.java [78:149]
53 lines of code
26 McCabe index (conditional complexity)

    public Object convertValue(Map<String, Object> context, Object o, Member member, String propertyName, Object value, Class toType) {
        Object result = null;

        if (value == null || toType.isAssignableFrom(value.getClass())) {
            // no need to convert at all, right?
            return value;
        }

        if (toType == String.class) {
            /* the code below has been disabled as it causes sideffects in Struts2 (XW-512)
            // if input (value) is a number then use special conversion method (XW-490)
            Class inputType = value.getClass();
            if (Number.class.isAssignableFrom(inputType)) {
                result = doConvertFromNumberToString(context, value, inputType);
                if (result != null) {
                    return result;
                }
            }*/
            // okay use default string conversion
            result = doConvertToString(context, value);
        } else if (toType == boolean.class) {
            result = doConvertToBoolean(value);
        } else if (toType == Boolean.class) {
            result = doConvertToBoolean(value);
        } else if (toType.isArray()) {
            result = doConvertToArray(context, o, member, propertyName, value, toType);
        } else if (Date.class.isAssignableFrom(toType)) {
            result = doConvertToDate(context, value, toType);
        } else if (LocalDate.class.isAssignableFrom(toType)) {
            result = doConvertToDate(context, value, toType);
        } else if (LocalDateTime.class.isAssignableFrom(toType)) {
            result = doConvertToDate(context, value, toType);
        } else if (LocalTime.class.isAssignableFrom(toType)) {
            result = doConvertToDate(context, value, toType);
        } else if (OffsetDateTime.class.isAssignableFrom(toType)) {
            result = doConvertToDate(context, value, toType);
        } else if (Calendar.class.isAssignableFrom(toType)) {
            result = doConvertToCalendar(context, value);
        } else if (Collection.class.isAssignableFrom(toType)) {
            result = doConvertToCollection(context, o, member, propertyName, value, toType);
        } else if (toType == Character.class) {
            result = doConvertToCharacter(value);
        } else if (toType == char.class) {
            result = doConvertToCharacter(value);
        } else if (Number.class.isAssignableFrom(toType) || toType.isPrimitive()) {
            result = doConvertToNumber(context, value, toType);
        } else if (toType == Class.class) {
            result = doConvertToClass(value);
        }

        if (result == null) {
            if (value instanceof Object[] array) {

                if (array.length >= 1) {
                    value = array[0];
                } else {
                    value = null;
                }

                // let's try to convert the first element only
                result = convertValue(context, o, member, propertyName, value, toType);
            } else if (!"".equals(value)) { // we've already tried the types we know
                result = super.convertValue(context, value, toType);
            }

            if (result == null && value != null && !"".equals(value)) {
                throw new TypeConversionException("Cannot create type " + toType + " from value " + value);
            }
        }

        return result;
    }