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package com.clickntap.tool.bean;

import org.dom4j.Document;
import org.dom4j.io.SAXReader;

import java.beans.PropertyDescriptor;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

@SuppressWarnings("unchecked")
public class BeanUtils extends org.springframework.beans.BeanUtils {

    public static String beanClassToResourceName(Class beanClass, String extension) {
        String simpleName = beanClassToSimpleName(beanClass);
        return simpleName + extension;
    }

    public static String beanClassToSimpleName(Class beanClass) {
        String simpleName = beanClass.getSimpleName();
        return simpleName;
    }

    public static Document beanToResource(Class beanClass) throws Exception {
        SAXReader reader = new SAXReader();
        Document doc = null;
        InputStream in = null;
        try {
            doc = reader.read(beanClass.getResourceAsStream(BeanUtils.beanClassToResourceName(beanClass, ".xml")));
        } catch (Exception e1) {
            try {
                in = beanClass.getResourceAsStream(BeanUtils.beanClassToResourceName(beanClass, ".ftl"));
                if (in != null)
                    doc = reader.read(in);
                else
                    return null;
            } catch (Exception e2) {
                return null;
            }
        }
        return doc;
    }

    public static BeanInfo beanTobeanInfo(Class beanClass) throws Exception {
        BeanInfo beanInfo = null;
        List classHierarchy = new ArrayList();
        Class superClass = beanClass;
        while (!superClass.toString().equals(Bean.class.toString())) {
            classHierarchy.add(0, superClass);
            superClass = superClass.getSuperclass();
        }
        for (Class clazz : classHierarchy) {
            Document document = BeanUtils.beanToResource(clazz);
            if (document != null)
                beanInfo = new BeanInfo(document, BeanUtils.beanClassToSimpleName(clazz), beanInfo);
        }
        return beanInfo;
    }

    public static Object getValue(Object target, String propertyName) {
        int x = 0;
        if ((x = propertyName.indexOf(".")) >= 0) {
            Object newTarget = getValue(target, propertyName.substring(0, x));
            return getValue(newTarget, propertyName.substring(x + 1));
        }
        Object value = null;
        PropertyDescriptor propertyDescriptor = org.springframework.beans.BeanUtils.getPropertyDescriptor(target.getClass(), propertyName);
        try {
            value = propertyDescriptor.getReadMethod().invoke(target, (Object[]) null);
        } catch (Exception e) {
            // e.printStackTrace();
        }
        return value;
    }

    public static void setValue(Object target, String propertyName, Object value) {
        PropertyDescriptor propertyDescriptor = org.springframework.beans.BeanUtils.getPropertyDescriptor(target.getClass(), propertyName);
        try {
            propertyDescriptor.getWriteMethod().invoke(target, new Object[]{value});
        } catch (Exception e) {
        }
    }
}