ObjectPropertyUtils { public static String[] splitPropertyPath(String path) { List<String> split = ObjectPathExpressionParser.parsePathExpression(null, path, SPLIT_PROPERTY_PATH_ENTRY); if (split == null || split.isEmpty()) { return EMPTY_STRING_ARRAY; } rejoinTrailingIndexReference(split, path); return split.toArray(new String[split.size()]); } private  ObjectPropertyUtils(); static Map<String, PropertyDescriptor> getPropertyDescriptors(Class<?> beanClass); static PropertyDescriptor getPropertyDescriptor(Class<?> beanClass, String propertyName); static void registerPropertyEditors(PropertyEditorRegistry registry); static Set<String> getReadablePropertyNames(Class<?> beanClass); static Method getReadMethod(Class<?> beanClass, String propertyName); static Method getWriteMethod(Class<?> beanClass, String propertyName); static void copyPropertiesToObject(Map<String, String> properties, Object object); static Class<?> getPropertyType(Class<?> beanClass, String propertyPath); static Class<?> getPropertyType(Object object, String propertyPath); static Set<String> getReadablePropertyNamesByType(Object bean, Class<?> propertyType); static Set<String> getReadablePropertyNamesByType(Class<?> beanClass, Class<?> propertyType); static Set<String> getReadablePropertyNamesByAnnotationType(Object bean,
            Class<? extends Annotation> annotationType); static Set<String> getReadablePropertyNamesByAnnotationType(
            Class<?> beanClass, Class<? extends Annotation> annotationType); static Set<String> getReadablePropertyNamesByCollectionType(Object bean, Class<?> collectionType); static Set<String> getWritablePropertyNames(Object bean); static Set<String> getReadablePropertyNamesByCollectionType(Class<?> beanClass, Class<?> collectionType); @SuppressWarnings("unchecked") static T getPropertyValue(Object object, String propertyPath); static String getPropertyValueAsText(Object bean, String path); static PropertyEditorRegistry getPropertyEditorRegistry(); static Class<?> getPrimitiveType(Class<?> type); static PropertyEditor getPropertyEditor(Object bean, String path); static PropertyEditor getPropertyEditor(Class<?> propertyType); static void initializeProperty(Object object, String propertyPath); static void setPropertyValue(Object object, String propertyPath, Object propertyValue); static void setPropertyValue(Object object, String propertyPath, Object propertyValue, boolean ignoreUnknown); static boolean isReadableProperty(Object object, String propertyPath); static boolean isWritableProperty(Object object, String propertyPath); static List<Field> getAllFields(List<Field> fields, Class<?> type, Class<?> stopAt); static Type getComponentType(Type type); static Class<?> getUpperBound(Type valueType); static Type findGenericType(Class<?> sourceClass, Class<?> targetClass); static String[] splitPropertyPath(String path); static String getPathTail(String path); static String removePathTail(String path); static String getCanonicalPath(String path);  }
@Test public void testPropertySplitPath() { String path = "foo.foo1.foo2"; String[] splitPaths = ObjectPropertyUtils.splitPropertyPath(path); assertEquals(3, splitPaths.length); assertEquals("foo", splitPaths[0]); assertEquals("foo1", splitPaths[1]); assertEquals("foo2", splitPaths[2]); path = "foo[1]"; splitPaths = ObjectPropertyUtils.splitPropertyPath(path); assertEquals(1, splitPaths.length); assertEquals("foo[1]", splitPaths[0]); path = "foo.foo1['key.nested'].foo2"; splitPaths = ObjectPropertyUtils.splitPropertyPath(path); assertEquals(3, splitPaths.length); assertEquals("foo", splitPaths[0]); assertEquals("foo1['key.nested']", splitPaths[1]); assertEquals("foo2", splitPaths[2]); path = "foo.foo1['key.nested'].foo2.foo3['key.nest.nest'].foo4"; splitPaths = ObjectPropertyUtils.splitPropertyPath(path); assertEquals(5, splitPaths.length); assertEquals("foo", splitPaths[0]); assertEquals("foo1['key.nested']", splitPaths[1]); assertEquals("foo2", splitPaths[2]); assertEquals("foo3['key.nest.nest']", splitPaths[3]); assertEquals("foo4", splitPaths[4]); }