| /** |
| * 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.cxf.common.util; |
| |
| |
| import java.lang.reflect.Proxy; |
| |
| import org.apache.cxf.Bus; |
| import org.apache.cxf.BusFactory; |
| |
| /** |
| * |
| */ |
| public class ClassHelper { |
| |
| public static final String USE_DEFAULT_CLASS_HELPER = "org.apache.cxf.useDefaultClassHelpers"; |
| |
| static final ClassHelper HELPER; |
| static final ClassUnwrapper DEFAULT_UNWRAPPER; |
| static final ClassUnwrapper UNWRAPPER; |
| |
| /** |
| * Default class unwrapper implementation which delegates to the ClassHelper |
| * internal methods. |
| * |
| */ |
| private static class DefaultClassUnwrapper implements ClassUnwrapper { |
| private final ClassHelper helper; |
| |
| DefaultClassUnwrapper(ClassHelper helper) { |
| this.helper = helper; |
| } |
| |
| @Override |
| public Class<?> getRealClassFromClass(Class<?> clazz) { |
| return helper.getRealClassFromClassInternal(clazz); |
| } |
| |
| @Override |
| public Class<?> getRealClass(Object o) { |
| return helper.getRealClassInternal(o); |
| } |
| |
| @Override |
| public Object getRealObject(Object o) { |
| return helper.getRealObjectInternal(o); |
| } |
| } |
| |
| static { |
| HELPER = new ClassHelper(); |
| DEFAULT_UNWRAPPER = new DefaultClassUnwrapper(HELPER); |
| UNWRAPPER = getClassUnwrapper(DEFAULT_UNWRAPPER); |
| } |
| |
| protected ClassHelper() { |
| } |
| |
| private static ClassUnwrapper getClassUnwrapper(ClassUnwrapper defaultHelper) { |
| boolean useSpring = true; |
| String s = SystemPropertyAction.getPropertyOrNull("org.apache.cxf.useSpringClassHelpers"); |
| if (!StringUtils.isEmpty(s)) { |
| useSpring = "1".equals(s) || Boolean.parseBoolean(s); |
| } |
| if (useSpring) { |
| try { |
| return new SpringClassUnwrapper(); |
| } catch (Throwable ex) { |
| // ignore |
| } |
| } |
| return defaultHelper; |
| } |
| |
| private Class<?> getRealClassInternal(Object o) { |
| return getRealObjectInternal(o).getClass(); |
| } |
| |
| private Class<?> getRealClassFromClassInternal(Class<?> cls) { |
| return cls; |
| } |
| |
| private Object getRealObjectInternal(Object o) { |
| return o instanceof Proxy ? Proxy.getInvocationHandler(o) : o; |
| } |
| |
| public static Class<?> getRealClass(Object o) { |
| return getRealClass(null, o); |
| } |
| |
| public static Class<?> getRealClassFromClass(Class<?> cls) { |
| return getRealClassFromClass(null, cls); |
| } |
| |
| public static Class<?> getRealClassFromClass(Bus bus, Class<?> cls) { |
| return getContextClassUnwrapper(getBus(bus)).getRealClassFromClass(cls); |
| } |
| |
| public static Object getRealObject(Object o) { |
| return getContextClassUnwrapper(getBus(null)).getRealObject(o); |
| } |
| |
| public static Class<?> getRealClass(Bus bus, Object o) { |
| return getContextClassUnwrapper(getBus(bus)).getRealClass(o); |
| } |
| |
| private static ClassUnwrapper getContextClassUnwrapper(Bus bus) { |
| if (bus != null && bus.getProperty(ClassUnwrapper.class.getName()) != null) { |
| return (ClassUnwrapper) bus.getProperty(ClassUnwrapper.class.getName()); |
| } |
| |
| return (DEFAULT_UNWRAPPER == UNWRAPPER || checkUseDefaultClassHelper(bus)) ? DEFAULT_UNWRAPPER : UNWRAPPER; |
| } |
| |
| private static Bus getBus(Bus bus) { |
| return bus == null ? BusFactory.getThreadDefaultBus() : bus; |
| } |
| |
| private static boolean checkUseDefaultClassHelper(Bus bus) { |
| return bus != null && Boolean.TRUE.equals(bus.getProperty(USE_DEFAULT_CLASS_HELPER)); |
| } |
| |
| } |