public void copy()

in core/src/main/java/org/apache/struts2/ognl/OgnlUtil.java [525:588]
55 lines of code
15 McCabe index (conditional complexity)

    public void copy(final Object from,
                     final Object to,
                     final Map<String, Object> context,
                     Collection<String> exclusions,
                     Collection<String> inclusions,
                     Class<?> editable) {
        if (from == null || to == null) {
            LOG.warn(
                    "Skipping attempt to copy from, or to, a null source.", new RuntimeException());
            return;
        }

        final Map<String, Object> contextFrom = createDefaultContext(from);
        final Map<String, Object> contextTo = createDefaultContext(to);

        PropertyDescriptor[] fromPds;
        PropertyDescriptor[] toPds;

        try {
            fromPds = getPropertyDescriptors(from);
            if (editable != null) {
                toPds = getPropertyDescriptors(editable);
            } else {
                toPds = getPropertyDescriptors(to);
            }
        } catch (IntrospectionException e) {
            LOG.error("An error occurred", e);
            return;
        }

        Map<String, PropertyDescriptor> toPdHash = new HashMap<>();

        for (PropertyDescriptor toPd : toPds) {
            toPdHash.put(toPd.getName(), toPd);
        }

        for (PropertyDescriptor fromPd : fromPds) {
            if (fromPd.getReadMethod() == null) {
                continue;
            }

            if (exclusions != null && exclusions.contains(fromPd.getName()) ||
                    inclusions != null && !inclusions.contains(fromPd.getName())) {
                continue;
            }

            PropertyDescriptor toPd = toPdHash.get(fromPd.getName());
            if (toPd == null || toPd.getWriteMethod() == null) {
                continue;
            }

            try {
                Object value = ognlGet(fromPd.getName(),
                        contextFrom,
                        from,
                        null,
                        context,
                        this::checkEnableEvalExpression);
                ognlSet(fromPd.getName(), contextTo, to, value, context);
            } catch (OgnlException e) {
                LOG.debug("Got OGNL exception", e);
            }
        }
    }