package common;

import java.lang.reflect.Method;

import java.text.SimpleDateFormat;

import net.sf.json.JSONObject;

/**

 * 辅助处理工具

 *

*/

public class AssistantUtil

{  

    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");  

    /**

     * 把JSON数据转换成JAVA对象

     * description: 函数的目的/功能

     */

    public static void setJsonObjData(Object obj, JSONObject data, String[] excludes) throws Exception

    {  

        // 反射获取所有方法

        Method[] methods = obj.getClass().getDeclaredMethods();

        if (null != methods)

        {  

            for (Method m : methods)

            {  

                String methodName = m.getName();  

                if (methodName.startsWith("set"))

                {  

                    methodName = methodName.substring(3);

                    // 获取属性名称

                    methodName = methodName.substring(0, 1).toLowerCase() + methodName.substring(1);  

                    if (!methodName.equalsIgnoreCase("class") && !isExistProp(excludes, methodName))

                    {  

                        try

                        {  

                            m.invoke(obj, new Object[] { data.get(methodName) });

                        }

                        catch (IllegalArgumentException e1)

                        {

                            if(m.getParameterTypes()[0].getName().equals("java.lang.Long")){

                                m.invoke(obj, new Object[] { Long.valueOf(data.get(methodName).toString())});

                            }else if(m.getParameterTypes()[0].getName().equals("java.util.Date")){

                                m.invoke(obj, new Object[] {data.containsKey(methodName)?  sdf.parse(data.get(methodName).toString()) : null});                            }

                        }

                        catch (Exception e)

                        {  

                        }  

                    }

                }

            }

        }  

    }  

    private static boolean isExistProp(String[] excludes, String prop)

    {  

        if (null != excludes)

        {  

            for (String exclude : excludes)

            {

               if (prop.equals(exclude))

                {

                    return true;

                }

            }

        }

        return false;

    }  

}