org.apache.cxf.common.util.ClassHelper Maven / Gradle / Ivy
/**
* 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 ClassHelper DEFAULT_HELPER;
static {
DEFAULT_HELPER = new ClassHelper();
HELPER = getClassHelper(DEFAULT_HELPER);
}
protected ClassHelper() {
}
private static ClassHelper getClassHelper(ClassHelper 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 SpringAopClassHelper();
} catch (Throwable ex) {
// ignore
}
}
return defaultHelper;
}
protected Class getRealClassInternal(Object o) {
return getRealObjectInternal(o).getClass();
}
protected Class getRealClassFromClassInternal(Class cls) {
return cls;
}
protected 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) {
bus = getBus(bus);
return getContextClassHelper(bus).getRealClassFromClassInternal(cls);
}
public static Object getRealObject(Object o) {
Bus bus = getBus(null);
return getContextClassHelper(bus).getRealObjectInternal(o);
}
public static Class getRealClass(Bus bus, Object o) {
bus = getBus(bus);
if (bus != null && bus.getProperty(ClassUnwrapper.class.getName()) != null) {
ClassUnwrapper unwrapper = (ClassUnwrapper) bus.getProperty(ClassUnwrapper.class.getName());
return unwrapper.getRealClass(o);
}
return getContextClassHelper(bus).getRealClassInternal(o);
}
private static ClassHelper getContextClassHelper(Bus bus) {
return (DEFAULT_HELPER == HELPER || checkUseDefaultClassHelper(bus)) ? DEFAULT_HELPER : HELPER;
}
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));
}
}