public void copyProperties()

in src/main/java/org/apache/commons/beanutils2/BeanUtilsBean.java [262:309]
42 lines of code
14 McCabe index (conditional complexity)

    public void copyProperties(final Object dest, final Object orig) throws IllegalAccessException, InvocationTargetException {
        // Validate existence of the specified beans
        Objects.requireNonNull(dest, "dest");
        Objects.requireNonNull(orig, "orig");
        if (LOG.isDebugEnabled()) {
            LOG.debug("BeanUtils.copyProperties(" + dest + ", " + orig + ")");
        }
        // Copy the properties, converting as necessary
        if (orig instanceof DynaBean) {
            final DynaProperty[] origDescriptors = ((DynaBean) orig).getDynaClass().getDynaProperties();
            for (final DynaProperty origDescriptor : origDescriptors) {
                final String name = origDescriptor.getName();
                // Need to check isReadable() for WrapDynaBean
                // (see Jira issue# BEANUTILS-61)
                if (getPropertyUtils().isReadable(orig, name) && getPropertyUtils().isWriteable(dest, name)) {
                    final Object value = ((DynaBean) orig).get(name);
                    copyProperty(dest, name, value);
                }
            }
        } else if (orig instanceof Map) {
            @SuppressWarnings("unchecked")
            final
            // Map properties are always of type <String, Object>
            Map<String, Object> propMap = (Map<String, Object>) orig;
            for (final Map.Entry<String, Object> entry : propMap.entrySet()) {
                final String k = entry.getKey();
                if (getPropertyUtils().isWriteable(dest, k)) {
                    copyProperty(dest, k, entry.getValue());
                }
            }
        } else /* if (orig is a standard JavaBean) */ {
            final PropertyDescriptor[] origDescriptors = getPropertyUtils().getPropertyDescriptors(orig);
            for (final PropertyDescriptor origDescriptor : origDescriptors) {
                final String name = origDescriptor.getName();
                if ("class".equals(name)) {
                    continue; // No point in trying to set an object's class
                }
                if (getPropertyUtils().isReadable(orig, name) && getPropertyUtils().isWriteable(dest, name)) {
                    try {
                        final Object value = getPropertyUtils().getSimpleProperty(orig, name);
                        copyProperty(dest, name, value);
                    } catch (final NoSuchMethodException e) {
                        // Should not happen
                    }
                }
            }
        }
    }