com.gitee.fufu669.utils.CacheMapUtil Maven / Gradle / Ivy

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package com.gitee.fufu669.utils;

import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StringUtils;


@SuppressWarnings({ "rawtypes", "unchecked" })
/** @author wangfupeng */
public class CacheMapUtil {

	public static final Logger logger = LoggerFactory.getLogger(CacheMapUtil.class);

	public static String startsWithString = "\"";
	
	public static String endsWithString = "\"";

	public static  Map objToStringMap(T obj) {
		if (obj == null) {
			return null;
		}

		Map map = new HashMap<>(16);
		BeanInfo beanInfo = null;
		if (obj.getClass().equals(HashMap.class)) {
			return (Map) obj;
		}
		try {
			beanInfo = Introspector.getBeanInfo(obj.getClass());
			PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
			for (PropertyDescriptor property : propertyDescriptors) {
				String key = property.getName();
				if (key.compareToIgnoreCase("class") == 0) {
					continue;
				}
				Method getter = property.getReadMethod();
				Object value = getter != null ? getter.invoke(obj) : null;
				map.put(key, value+"");
			}
		} catch (Exception e) {
			logger.info("CacheMapUtil.objToMap error... ", e);
		}

		return map;
	}
	public static  Map objToMap(T obj) {
		if (obj == null) {
			return null;
		}

		Map map = new HashMap<>(16);
		BeanInfo beanInfo = null;
		if (obj.getClass().equals(HashMap.class)) {
			return (Map) obj;
		}
		try {
			beanInfo = Introspector.getBeanInfo(obj.getClass());
			PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
			for (PropertyDescriptor property : propertyDescriptors) {
				String key = property.getName();
				if (key.compareToIgnoreCase("class") == 0) {
					continue;
				}
				Method getter = property.getReadMethod();
				Object value = getter != null ? getter.invoke(obj) : null;
				map.put(key, value);
			}
		} catch (Exception e) {
			logger.info("CacheMapUtil.objToMap error... ", e);
		}

		return map;
	}

	public static  MultiValueMap objToMultiValueMap(T obj) {
		if (obj == null) {
			return null;
		}

		MultiValueMap map = new LinkedMultiValueMap();
		BeanInfo beanInfo = null;
		try {
			beanInfo = Introspector.getBeanInfo(obj.getClass());
			PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
			for (PropertyDescriptor property : propertyDescriptors) {
				String key = property.getName();
				if (key.compareToIgnoreCase("class") == 0) {
					continue;
				}
				Method getter = property.getReadMethod();
				Object value = getter != null ? getter.invoke(obj) : null;
				map.add(key, value);
			}
		} catch (Exception e) {
			logger.info("CacheMapUtil.MultiValueMap error... ", e);
		}

		return map;
	}

	public static  T mapToObject(Map map, Class beanClass) {
        if (null == map || map.size() == 0) {return null;}
        try {
            T obj = (T) beanClass.newInstance();
            BeanInfo beanInfo = Introspector.getBeanInfo(obj.getClass());
            PropertyDescriptor[] propertyDescriptors = beanInfo.getPropertyDescriptors();
            for (PropertyDescriptor property : propertyDescriptors) {
                Method setter = property.getWriteMethod();
                if (setter != null) {
                    Object propertyValue = map.get(property.getName());
                    if (propertyValue != null) {
                        setter.invoke(obj, praser(setter, propertyValue));
                    }
                }
            }
            return obj;
        } catch (Exception e) {
            logger.info("CacheMapUtil.objToMap error... ", e);
        }

        return null;
    }

	private static Object praser(Method setter, Object value) {
		Class cls = setter.getParameterTypes()[0];
		if (value instanceof String && cls != String.class) {
			if (StringUtils.isEmpty(value.toString())) {
				return null;
			}
		}

		if (cls.equals(Date.class)) {
			return new Date(Long.parseLong(value.toString()));
		} else if (cls == byte.class || cls == Byte.class) {
			return Byte.parseByte(value.toString());
		} else if (cls == int.class || cls == Integer.class) {
			return Integer.parseInt(value.toString());
		} else if (cls == long.class || cls == Long.class) {
			return Long.parseLong(value.toString());
		} else if (cls == boolean.class || cls == Boolean.class) {
			return Boolean.parseBoolean(value.toString());
		} else if (cls == String.class) {
			String stringValue = value.toString();
			if (stringValue.startsWith(startsWithString) && stringValue.endsWith(endsWithString)) {
				return stringValue.substring(1, stringValue.length() - 1);
			}
		}
		return value;
	}
}