org.apache.camel.component.cxf.jaxrs.SubResourceClassInvocationHandler 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.camel.component.cxf.jaxrs;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import org.apache.cxf.jaxrs.utils.ResourceUtils;
// This class only return the sub class instance
public class SubResourceClassInvocationHandler implements InvocationHandler {
@Override
public Object invoke(Object proxy, Method method, Object[] parameters) throws Throwable {
Object result = null;
Class returnType = method.getReturnType();
if (!returnType.isAssignableFrom(Void.class)) {
// create a instance to return
if (returnType.isInterface()) {
// create a new proxy for it
result = Proxy.newProxyInstance(returnType.getClassLoader(), new Class[] {returnType},
new SubResourceClassInvocationHandler());
} else {
// get the constructor and create a new instance
Constructor c = ResourceUtils.findResourceConstructor(returnType, true);
result = c.newInstance(new Object[] {});
}
}
return result;
}
}