/**
* Copyright 2014-2020 the original author or authors.
*
* Licensed 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 net.kaczmarzyk.spring.data.jpa.web;
import java.lang.reflect.Method;
import org.springframework.cglib.proxy.Enhancer;
import org.springframework.cglib.proxy.MethodInterceptor;
import org.springframework.cglib.proxy.MethodProxy;
import org.springframework.data.jpa.domain.Specification;
/**
* @author Tomasz Kaczmarzyk
*/
class EnhancerUtil {
@SuppressWarnings("unchecked")
static <T> T wrapWithIfaceImplementation(final Class<T> iface, final Specification<Object> targetSpec) {
Enhancer enhancer = new Enhancer();
enhancer.setInterfaces(new Class[] { iface });
enhancer.setCallback(new MethodInterceptor() {
@Override
public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
if ("toString".equals(method.getName())) {
return iface.getSimpleName() + "[" + proxy.invoke(targetSpec, args) + "]";
}
return proxy.invoke(targetSpec, args);
}
});
return (T) enhancer.create();
}
}
