package com.yihu.platform.utils;

import java.math.BigDecimal;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.exception.ExceptionUtils;


/**
 * 字符处理类
 * 
 * @author wengsb
 * @company yihu.com 2013-4-7上午09:54:39
 */
public class StringUtil {


	/**
	 * 判断对象是否为空或者空串
	 * 
	 * @param str
	 * @return
	 */
	public static boolean isEmpty(Object obj) {
		if (obj == null)
			return true;

		if (obj instanceof String) {
			return (obj == null || obj.toString().trim().length() == 0);
		}
		if (obj instanceof Long) {
			return (obj == null || (Long) obj == 0);
		}
		if (obj instanceof Integer) {
			return (obj == null || (Integer) obj == 0);
		}
		if (obj instanceof BigDecimal) {
			return (obj == null || Integer.valueOf(obj.toString())==0);
		}
		if (obj instanceof List) {
			return (obj == null || ((List) obj).size() == 0);
		}
		return obj == null;
	}

	
	/**
	 * 判断对象是否为空或者空串
	 * 
	 * @param str
	 * @return
	 */
	public static boolean isNotEmpty(Object obj) {
		return !isEmpty(obj);
	}

	public static boolean isMobile(String mobiles) {
		Pattern p = Pattern.compile("^((19[0-9])|(16[0-9])|(17[0-9])|(14[0-9])|(13[0-9])|(15[^4,\\D])|(18[0-9]))\\d{8}$");
		Matcher m = p.matcher(mobiles);
		return m.matches();

	}
	
	public static boolean isEmail(String mobiles) {
		Pattern p = Pattern.compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
		Matcher m = p.matcher(mobiles);
		return m.matches();

	}


	/**
	 * 如果为null则返回""
	 * 
	 * @param obj
	 * @return
	 */
	public static String getJSONValue(Object obj) {
		if (obj == null) {
			return "";
		} else {
			return obj.toString();
		}
	}

	/**
	 * 如果为null则返回""
	 * 
	 * @param obj
	 * @return
	 */
	public static Object getNullValue(Object obj) {
		if (obj == null) {
			return "";
		} else {
			return obj;
		}
	}

	/**
	 * 过滤含有html、script、style标签的字符串
	 * 
	 * @param inputString
	 *            含有html、script、style标签的字符串
	 * @return 文本字符串
	 */
	public static String Html2Text(String inputString) {
		if(inputString == null || inputString.trim().length() == 0){
			return inputString;
		}
		String htmlStr = inputString; // 含html标签的字符串
		String textStr = "";
		java.util.regex.Pattern p_script;
		java.util.regex.Matcher m_script;
		java.util.regex.Pattern p_style;
		java.util.regex.Matcher m_style;
		java.util.regex.Pattern p_html;
		java.util.regex.Matcher m_html;
		try {
			String regEx_script = "<[\\s]*?script[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?script[\\s]*?>"; // 定义script的正则表达式{或<script[^>]*?>[\\s\\S]*?<\\/script>
			String regEx_style = "<[\\s]*?style[^>]*?>[\\s\\S]*?<[\\s]*?\\/[\\s]*?style[\\s]*?>"; // 定义style的正则表达式{或<style[^>]*?>[\\s\\S]*?<\\/style>
			String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
			p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
			m_script = p_script.matcher(htmlStr);
			htmlStr = m_script.replaceAll(""); // 过滤script标签

			p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
			m_style = p_style.matcher(htmlStr);
			htmlStr = m_style.replaceAll(""); // 过滤style标签

			p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
			m_html = p_html.matcher(htmlStr);
			htmlStr = m_html.replaceAll(""); // 过滤html标签

			htmlStr = htmlStr.replaceAll("\\\\n", "");
			htmlStr = htmlStr.replaceAll("\\\\r", "");
			htmlStr = htmlStr.replaceAll("&nbsp;", "");
			htmlStr = htmlStr.replaceAll("&quot;", "\"");//引号
			htmlStr = htmlStr.replaceAll("&lt;", "<");
			htmlStr = htmlStr.replaceAll("&gt;", ">");
			textStr = htmlStr;
		} catch (Exception e) {
			System.err.println("Html2Text: " + e.getMessage());
		}
		return textStr;// 返回文本字符串
	}

     
     /**
 	 * 异常字符串处理方法
 	 * 
 	 * @param e
 	 * @return
 	 */
 	public static String getException(Exception e) {
 		String exceptionStr = ExceptionUtils.getRootCauseMessage(e);
 		if(StringUtil.isEmpty(exceptionStr)){ 
 			exceptionStr = ExceptionUtils.getMessage(e) ;
 		}
 		return exceptionStr;
 	}
 		
}