package com.htsoft.core.log;

import java.lang.reflect.Method;
import java.util.Date;

import javax.annotation.Resource;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.ProceedingJoinPoint;

import com.htsoft.core.util.ContextUtil;
import com.htsoft.oa.model.system.AppUser;
import com.htsoft.oa.model.system.SystemLog;
import com.htsoft.oa.service.system.SystemLogService;

public class LogAspect {
	
	@Resource
	private SystemLogService systemLogService;
	
	private Log logger = LogFactory.getLog(LogAspect.class);

	public Object doSystemLog(ProceedingJoinPoint point) throws Throwable {

		String methodName = point.getSignature().getName();

		// 目标方法不为空
		if (StringUtils.isNotEmpty(methodName)) {
			// set与get方法除外
			if (!(methodName.startsWith("set") || methodName.startsWith("get"))) {

				Class targetClass = point.getTarget().getClass();
				Method method = targetClass.getMethod(methodName);

				if (method != null) {

					boolean hasAnnotation = method.isAnnotationPresent(Action.class);

					if (hasAnnotation) {
						Action annotation = method.getAnnotation(Action.class);
						
						String methodDescp = annotation.description();
						if (logger.isDebugEnabled()) {
							logger.debug("Action method:" + method.getName() + " Description:" + methodDescp);
						}
						//取到当前的操作用户
						AppUser appUser=ContextUtil.getCurrentUser();
						if(appUser!=null){
							try{
								SystemLog sysLog=new SystemLog();
								
								sysLog.setCreatetime(new Date());
								sysLog.setUserId(appUser.getUserId());
								sysLog.setUsername(appUser.getFullname());
								sysLog.setExeOperation(methodDescp);
								
								systemLogService.save(sysLog);
							}catch(Exception ex){
								logger.error(ex.getMessage());
							}
						}
						
					}
				}

			}
		}
		return point.proceed();
	}

}

/**
 * 解决JSONObject.fromObject抛出"There is a cycle in the hierarchy"异常导致死循环的解决办法
 * @author LuoYu
 * @date 2012-11-23
 */
public class ObjectJsonValueProcessor implements JsonValueProcessor {
	
	/**
	 * 需要留下的字段数组
	 */
	private String[] properties;
	
	/**
	 * 需要做处理的复杂属性类型
	 */
	private Class<?> clazz;
	
	/**
	 * 构造方法,参数必须
	 * @param properties
	 * @param clazz
	 */
	public ObjectJsonValueProcessor(String[] properties,Class<?> clazz){
		this.properties = properties;
		this.clazz =clazz;
	}

	@Override
	public Object processArrayValue(Object value, JsonConfig jsonConfig) {
		return "";
	}

	@Override
	public Object processObjectValue(String key, Object value, JsonConfig jsonConfig) {
		PropertyDescriptor pd = null;
		Method method = null;
		StringBuffer json = new StringBuffer("{");
		try{
			for(int i=0;i<properties.length;i++){
				pd = new PropertyDescriptor(properties[i], clazz);
				method = pd.getReadMethod();
				String v = String.valueOf(method.invoke(value));
				json.append("'"+properties[i]+"':'"+v+"'");
				json.append(i != properties.length-1?",":"");
			}
			json.append("}");
		}catch (Exception e) {
			e.printStackTrace();
		}
		return JSONObject.fromObject(json.toString());
	}
	
	
}