com.liferay.portal.remote.json.web.service.extender.internal.ServiceJSONWebServiceScannerStrategy.java Source code

Introduction

Here is the source code for com.liferay.portal.remote.json.web.service.extender.internal.ServiceJSONWebServiceScannerStrategy.java

Source

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.remote.json.web.service.extender.internal;

import com.liferay.portal.kernel.bean.ClassLoaderBeanHandler;
import com.liferay.portal.kernel.jsonwebservice.JSONWebServiceScannerStrategy;
import com.liferay.portal.kernel.service.ServiceWrapper;
import com.liferay.portal.kernel.util.ProxyUtil;
import com.liferay.portal.spring.aop.AdvisedSupportProxy;
import com.liferay.portal.spring.aop.ServiceBeanAopProxy;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;

import java.util.ArrayList;
import java.util.List;

import org.springframework.aop.TargetSource;
import org.springframework.aop.framework.AdvisedSupport;

/**
 * @author Miguel Pastor
 */
public class ServiceJSONWebServiceScannerStrategy implements JSONWebServiceScannerStrategy {

    @Override
    public MethodDescriptor[] scan(Object service) {
        Class<?> clazz = null;

        try {
            clazz = getTargetClass(service);
        } catch (Exception e) {
            return new MethodDescriptor[0];
        }

        Method[] methods = clazz.getMethods();

        List<MethodDescriptor> methodDescriptors = new ArrayList<>(methods.length);

        for (Method method : methods) {
            Class<?> declaringClass = method.getDeclaringClass();

            if (declaringClass != clazz) {
                continue;
            }

            methodDescriptors.add(new MethodDescriptor(method));
        }

        return methodDescriptors.toArray(new MethodDescriptor[methodDescriptors.size()]);
    }

    /**
     * @see com.liferay.portal.jsonwebservice.SpringJSONWebServiceScannerStrategy#getTargetClass(
     *      Object)
     */
    protected Class<?> getTargetClass(Object service) throws Exception {
        while (ProxyUtil.isProxyClass(service.getClass())) {
            InvocationHandler invocationHandler = ProxyUtil.getInvocationHandler(service);

            if (invocationHandler instanceof AdvisedSupportProxy) {
                AdvisedSupport advisedSupport = ServiceBeanAopProxy.getAdvisedSupport(service);

                TargetSource targetSource = advisedSupport.getTargetSource();

                service = targetSource.getTarget();
            } else if (invocationHandler instanceof ClassLoaderBeanHandler) {
                ClassLoaderBeanHandler classLoaderBeanHandler = (ClassLoaderBeanHandler) invocationHandler;

                Object bean = classLoaderBeanHandler.getBean();

                if (bean instanceof ServiceWrapper) {
                    ServiceWrapper<?> serviceWrapper = (ServiceWrapper<?>) bean;

                    service = serviceWrapper.getWrappedService();
                } else {
                    service = bean;
                }
            }
        }

        return service.getClass();
    }

}