org.apache.dubbo.common.utils.ClassHelper Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.dubbo.common.utils;
import java.lang.reflect.Method;
/**
* @see org.apache.dubbo.common.utils.ClassUtils
* @deprecated Replace to ClassUtils
*/
public class ClassHelper {
public static Class forNameWithThreadContextClassLoader(String name) throws ClassNotFoundException {
return ClassUtils.forName(name, Thread.currentThread().getContextClassLoader());
}
public static Class forNameWithCallerClassLoader(String name, Class caller) throws ClassNotFoundException {
return ClassUtils.forName(name, caller.getClassLoader());
}
public static ClassLoader getCallerClassLoader(Class caller) {
return caller.getClassLoader();
}
/**
* get class loader
*
* @param clazz
* @return class loader
*/
public static ClassLoader getClassLoader(Class clazz) {
return ClassUtils.getClassLoader(clazz);
}
/**
* Return the default ClassLoader to use: typically the thread context
* ClassLoader, if available; the ClassLoader that loaded the ClassUtils
* class will be used as fallback.
*
* Call this method if you intend to use the thread context ClassLoader in a
* scenario where you absolutely need a non-null ClassLoader reference: for
* example, for class path resource loading (but not necessarily for
* Class.forName
, which accepts a null
ClassLoader
* reference as well).
*
* @return the default ClassLoader (never null
)
* @see java.lang.Thread#getContextClassLoader()
*/
public static ClassLoader getClassLoader() {
return getClassLoader(ClassHelper.class);
}
/**
* Same as Class.forName()
, except that it works for primitive
* types.
*/
public static Class forName(String name) throws ClassNotFoundException {
return forName(name, getClassLoader());
}
/**
* Replacement for Class.forName()
that also returns Class
* instances for primitives (like "int") and array class names (like
* "String[]").
*
* @param name the name of the Class
* @param classLoader the class loader to use (may be null
,
* which indicates the default class loader)
* @return Class instance for the supplied name
* @throws ClassNotFoundException if the class was not found
* @throws LinkageError if the class file could not be loaded
* @see Class#forName(String, boolean, ClassLoader)
*/
public static Class forName(String name, ClassLoader classLoader)
throws ClassNotFoundException, LinkageError {
return ClassUtils.forName(name, classLoader);
}
/**
* Resolve the given class name as primitive class, if appropriate,
* according to the JVM's naming rules for primitive classes.
*
* Also supports the JVM's internal class names for primitive arrays. Does
* not support the "[]" suffix notation for primitive arrays; this is
* only supported by {@link #forName}.
*
* @param name the name of the potentially primitive class
* @return the primitive class, or null
if the name does not
* denote a primitive class or primitive array class
*/
public static Class resolvePrimitiveClassName(String name) {
return ClassUtils.resolvePrimitiveClassName(name);
}
public static String toShortString(Object obj) {
return ClassUtils.toShortString(obj);
}
public static String simpleClassName(Class clazz) {
return ClassUtils.simpleClassName(clazz);
}
/**
* @see org.apache.dubbo.common.utils.MethodUtils#isSetter(Method)
* @deprecated Replace to MethodUtils#isSetter(Method)
*/
public static boolean isSetter(Method method) {
return MethodUtils.isSetter(method);
}
/**
* @see org.apache.dubbo.common.utils.MethodUtils#isGetter(Method) (Method)
* @deprecated Replace to MethodUtils#isGetter(Method)
*/
public static boolean isGetter(Method method) {
return MethodUtils.isGetter(method);
}
public static boolean isPrimitive(Class type) {
return ClassUtils.isPrimitive(type);
}
public static Object convertPrimitive(Class type, String value) {
return ClassUtils.convertPrimitive(type,value);
}
/**
* We only check boolean value at this moment.
*
* @param type
* @param value
* @return
*/
public static boolean isTypeMatch(Class type, String value) {
return ClassUtils.isTypeMatch(type,value);
}
}