org.springframework.util.ClassUtils#getShortName ( )源码实例Demo

/**
 * Generate the actual URL paths for the given controller class.
 * <p>Subclasses may choose to customize the paths that are generated
 * by overriding this method.
 * @param beanClass the controller bean class to generate a mapping for
 * @return the URL path mappings for the given controller
 */
protected String[] generatePathMappings(Class<?> beanClass) {
	StringBuilder pathMapping = buildPathPrefix(beanClass);
	String className = ClassUtils.getShortName(beanClass);
	String path = (className.endsWith(CONTROLLER_SUFFIX) ?
			className.substring(0, className.lastIndexOf(CONTROLLER_SUFFIX)) : className);
	if (path.length() > 0) {
		if (this.caseSensitive) {
			pathMapping.append(path.substring(0, 1).toLowerCase()).append(path.substring(1));
		}
		else {
			pathMapping.append(path.toLowerCase());
		}
	}
	if (isMultiActionControllerType(beanClass)) {
		return new String[] {pathMapping.toString(), pathMapping.toString() + "/*"};
	}
	else {
		return new String[] {pathMapping.toString() + "*"};
	}
}
 

@Test
public void testUnqualifiedFileNameNotFound() throws Exception {
	PropertyEditor fileEditor = new FileEditor();
	String fileName = ClassUtils.classPackageAsResourcePath(getClass()) + "/" + ClassUtils.getShortName(getClass())
			+ ".clazz";
	fileEditor.setAsText(fileName);
	Object value = fileEditor.getValue();
	assertTrue(value instanceof File);
	File file = (File) value;
	assertFalse(file.exists());
	String absolutePath = file.getAbsolutePath();
	if (File.separatorChar == '\\') {
		absolutePath = absolutePath.replace('\\', '/');
	}
	assertTrue(absolutePath.endsWith(fileName));
}
 

@Test
public void testUnqualifiedPathNameFound() throws Exception {
	PropertyEditor pathEditor = new PathEditor();
	String fileName = ClassUtils.classPackageAsResourcePath(getClass()) + "/" +
			ClassUtils.getShortName(getClass()) + ".class";
	pathEditor.setAsText(fileName);
	Object value = pathEditor.getValue();
	assertTrue(value instanceof Path);
	Path path = (Path) value;
	File file = path.toFile();
	assertTrue(file.exists());
	String absolutePath = file.getAbsolutePath();
	if (File.separatorChar == '\\') {
		absolutePath = absolutePath.replace('\\', '/');
	}
	assertTrue(absolutePath.endsWith(fileName));
}
 

private Object transformAndUnmarshal(Source source, @Nullable String encoding) throws IOException {
	try {
		Transformer transformer = this.transformerFactory.newTransformer();
		if (encoding != null) {
			transformer.setOutputProperty(OutputKeys.ENCODING, encoding);
		}
		ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
		transformer.transform(source, new StreamResult(os));
		ByteArrayInputStream is = new ByteArrayInputStream(os.toByteArray());
		return unmarshalInputStream(is);
	}
	catch (TransformerException ex) {
		throw new MarshallingFailureException(
				"Could not transform from [" + ClassUtils.getShortName(source.getClass()) + "]", ex);
	}
}
 

@Test
public void testGetAsTextReturnsNullByDefault() throws Exception {
	assertNull(new InputStreamEditor().getAsText());
	String resource = "classpath:" + ClassUtils.classPackageAsResourcePath(getClass()) +
			"/" + ClassUtils.getShortName(getClass()) + ".class";
	InputStreamEditor editor = new InputStreamEditor();
	editor.setAsText(resource);
	assertNull(editor.getAsText());
}
 

@Override
public String style(@Nullable Object value) {
	if (value == null) {
		return NULL;
	}
	else if (value instanceof String) {
		return "\'" + value + "\'";
	}
	else if (value instanceof Class) {
		return ClassUtils.getShortName((Class<?>) value);
	}
	else if (value instanceof Method) {
		Method method = (Method) value;
		return method.getName() + "@" + ClassUtils.getShortName(method.getDeclaringClass());
	}
	else if (value instanceof Map) {
		return style((Map<?, ?>) value);
	}
	else if (value instanceof Map.Entry) {
		return style((Map.Entry<? ,?>) value);
	}
	else if (value instanceof Collection) {
		return style((Collection<?>) value);
	}
	else if (value.getClass().isArray()) {
		return styleArray(ObjectUtils.toObjectArray(value));
	}
	else {
		return String.valueOf(value);
	}
}
 

@Override
public String style(Object value) {
	if (value == null) {
		return NULL;
	}
	else if (value instanceof String) {
		return "\'" + value + "\'";
	}
	else if (value instanceof Class) {
		return ClassUtils.getShortName((Class<?>) value);
	}
	else if (value instanceof Method) {
		Method method = (Method) value;
		return method.getName() + "@" + ClassUtils.getShortName(method.getDeclaringClass());
	}
	else if (value instanceof Map) {
		return style((Map<?, ?>) value);
	}
	else if (value instanceof Map.Entry) {
		return style((Map.Entry<? ,?>) value);
	}
	else if (value instanceof Collection) {
		return style((Collection<?>) value);
	}
	else if (value.getClass().isArray()) {
		return styleArray(ObjectUtils.toObjectArray(value));
	}
	else {
		return String.valueOf(value);
	}
}
 

private void logNonMatchingType(C callback, ClassCastException ex) {
	if (this.logger.isDebugEnabled()) {
		Class<?> expectedType = ResolvableType.forClass(this.callbackType).resolveGeneric();
		String expectedTypeName = (expectedType != null) ? ClassUtils.getShortName(expectedType) + " type"
				: "type";
		String message = "Non-matching " + expectedTypeName + " for callback "
				+ ClassUtils.getShortName(this.callbackType) + ": " + callback;
		this.logger.debug(message, ex);
	}
}
 

private String getEntityName(Class<?> entityClass) {
	String shortName = ClassUtils.getShortName(entityClass);
	int lastDot = shortName.lastIndexOf('.');
	if (lastDot != -1) {
		return shortName.substring(lastDot + 1);
	}
	else {
		return shortName;
	}
}
 

private void transformAndMarshal(Object graph, Result result) throws IOException {
	try {
		ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
		marshalOutputStream(graph, os);
		ByteArrayInputStream is = new ByteArrayInputStream(os.toByteArray());
		Transformer transformer = this.transformerFactory.newTransformer();
		transformer.transform(new StreamSource(is), result);
	}
	catch (TransformerException ex) {
		throw new MarshallingFailureException(
				"Could not transform to [" + ClassUtils.getShortName(result.getClass()) + "]", ex);
	}

}
 

@Test
public void testUnqualifiedFileNameNotFound() throws Exception {
	PropertyEditor fileEditor = new FileEditor();
	String fileName = ClassUtils.classPackageAsResourcePath(getClass()) + "/" +
			ClassUtils.getShortName(getClass()) + ".clazz";
	fileEditor.setAsText(fileName);
	Object value = fileEditor.getValue();
	assertTrue(value instanceof File);
	File file = (File) value;
	assertFalse(file.exists());
	String absolutePath = file.getAbsolutePath().replace('\\', '/');
	assertTrue(absolutePath.endsWith(fileName));
}
 

@ExceptionHandler
public String handleException(IllegalStateException ex) {
	return "BasePackageTestExceptionResolver: " + ClassUtils.getShortName(ex.getClass());
}
 

@ExceptionHandler(IOException.class)
public String handleIOException(IOException ex, PortletRequest request) {
	return "X:" + ClassUtils.getShortName(ex.getClass());
}
 

/**
 * Determine the conventional variable name for the return type of the given
 * method, taking the generic collection type, if any, into account, falling
 * back on the given return value if the method declaration is not specific
 * enough, e.g. {@code Object} return type or untyped collection.
 * <p>As of 5.0 this method supports reactive types:<br>
 * {@code Mono<com.myapp.Product>} becomes {@code "productMono"}<br>
 * {@code Flux<com.myapp.MyProduct>} becomes {@code "myProductFlux"}<br>
 * {@code Observable<com.myapp.MyProduct>} becomes {@code "myProductObservable"}<br>
 * @param method the method to generate a variable name for
 * @param resolvedType the resolved return type of the method
 * @param value the return value (may be {@code null} if not available)
 * @return the generated variable name
 */
public static String getVariableNameForReturnType(Method method, Class<?> resolvedType, @Nullable Object value) {
	Assert.notNull(method, "Method must not be null");

	if (Object.class == resolvedType) {
		if (value == null) {
			throw new IllegalArgumentException(
					"Cannot generate variable name for an Object return type with null value");
		}
		return getVariableName(value);
	}

	Class<?> valueClass;
	boolean pluralize = false;
	String reactiveSuffix = "";

	if (resolvedType.isArray()) {
		valueClass = resolvedType.getComponentType();
		pluralize = true;
	}
	else if (Collection.class.isAssignableFrom(resolvedType)) {
		valueClass = ResolvableType.forMethodReturnType(method).asCollection().resolveGeneric();
		if (valueClass == null) {
			if (!(value instanceof Collection)) {
				throw new IllegalArgumentException("Cannot generate variable name " +
						"for non-typed Collection return type and a non-Collection value");
			}
			Collection<?> collection = (Collection<?>) value;
			if (collection.isEmpty()) {
				throw new IllegalArgumentException("Cannot generate variable name " +
						"for non-typed Collection return type and an empty Collection value");
			}
			Object valueToCheck = peekAhead(collection);
			valueClass = getClassForValue(valueToCheck);
		}
		pluralize = true;
	}
	else {
		valueClass = resolvedType;
		ReactiveAdapterRegistry reactiveAdapterRegistry = ReactiveAdapterRegistry.getSharedInstance();
		if (reactiveAdapterRegistry.hasAdapters()) {
			ReactiveAdapter adapter = reactiveAdapterRegistry.getAdapter(valueClass);
			if (adapter != null && !adapter.getDescriptor().isNoValue()) {
				reactiveSuffix = ClassUtils.getShortName(valueClass);
				valueClass = ResolvableType.forMethodReturnType(method).getGeneric().toClass();
			}
		}
	}

	String name = ClassUtils.getShortNameAsProperty(valueClass);
	return (pluralize ? pluralize(name) : name + reactiveSuffix);
}
 

@ExceptionHandler({BindException.class, IllegalArgumentException.class})
public String handle1(Exception ex, HttpServletRequest request, HttpServletResponse response)
		throws IOException {
	return ClassUtils.getShortName(ex.getClass());
}
 

@ExceptionHandler
public String handle2(IllegalArgumentException ex) {
	return ClassUtils.getShortName(ex.getClass());
}
 

@ExceptionHandler({IllegalStateException.class, IllegalAccessException.class})
@ResponseBody
public String handleException(Exception ex) {
	return "AnotherTestExceptionResolver: " + ClassUtils.getShortName(ex.getClass());
}
 

/**
 * Reschedule the given task object immediately.
 * <p>To be implemented by subclasses if they ever call
 * {@code rescheduleTaskIfNecessary}.
 * This implementation throws an UnsupportedOperationException.
 * @param task the task object to reschedule
 * @see #rescheduleTaskIfNecessary
 */
protected void doRescheduleTask(Object task) {
	throw new UnsupportedOperationException(
			ClassUtils.getShortName(getClass()) + " does not support rescheduling of tasks");
}
 

/**
 * Return a short name for this exporter.
 * Used for tracing of remote invocations.
 * <p>Default is the unqualified class name (without package).
 * Can be overridden in subclasses.
 * @see #getProxyForService
 * @see RemoteInvocationTraceInterceptor
 * @see org.springframework.util.ClassUtils#getShortName
 */
protected String getExporterName() {
	return ClassUtils.getShortName(getClass());
}
 

/**
 * Get the class short name. Strips the outer class name in case of an inner
 * class.
 *
 * @param clazz
 * @see org.springframework.util.ClassUtils#getShortName(Class)
 * @return
 */
protected static String getShortClassName(Class<?> clazz) {
	String shortName = ClassUtils.getShortName(clazz);
	int dotIndex = shortName.lastIndexOf('.');
	return (dotIndex != -1 ? shortName.substring(dotIndex + 1) : shortName);
}