package com.qxueyou.scc.base.util;
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import java.lang.reflect.InvocationTargetException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.apache.commons.beanutils.PropertyUtils;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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/**
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* Bean 工具类
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* @author 夏德虎
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*
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*/
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public class QBeanUtils {
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private static final Logger log = LogManager.getLogger("QBeanUtils");
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/**
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* 将 Bean 转换成 Map,支持 将 id 转换为 id1
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* @param src bean对象
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* @param propertyMap 字段映射
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* @return
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*/
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public static final <T> Map<String,Object> bean2Map(T src,Map<String,String> propertyMap) {
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Map<String, Object> result=null;
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try {
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result = new HashMap<String,Object>(10);
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for(String key:propertyMap.keySet()) {
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Object value = null;
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if(key.contains(".")) {
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String[] keys = key.split("\\.");
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value = PropertyUtils.getProperty(PropertyUtils.getProperty(src, keys[0]),keys[1]);
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result.put(propertyMap.get(key), value);
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}else {
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value = PropertyUtils.getProperty(src, key);
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}
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if(propertyMap.get(key).contains(",")) {
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String[] destKeys = propertyMap.get(key).split(",");
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for(String destKey:destKeys) {
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result.put(destKey, value);
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}
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}else {
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result.put(propertyMap.get(key), value);
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}
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}
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} catch (IllegalAccessException e) {
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log.error(e,e);
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} catch (InvocationTargetException e) {
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log.error(e,e);
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} catch (NoSuchMethodException e) {
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log.error(e,e);
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}
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return result;
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}
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/**
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* 将List<T> 转换成 List<Map>,支持 将 id 转换为 id1
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* @param src List<T>对象
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* @param propertyMap 字段映射
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* @return
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*/
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public static final <T> List<Map<String,Object>> listBean2ListMap(List<T> src,Map<String,String> propertyMap) {
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if(src==null || src.isEmpty()){
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return new ArrayList<Map<String,Object>>();
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}
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List<Map<String,Object>> result = new ArrayList<Map<String,Object>>(src.size()*2);
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for(T t:src) {
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result.add(bean2Map(t,propertyMap));
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}
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return result;
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}
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/**
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* 将List<T> 转换成 List<Map>,支持 将 id 转换为 id1
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* @param src List<T>对象
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* @param propertyMap 字段映射
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* @return
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* @throws NoSuchMethodException
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* @throws InvocationTargetException
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* @throws IllegalAccessException
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*/
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@SuppressWarnings("unchecked")
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public static final <T,V> List<V> listPropertyVal(List<T> src,String propName){
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if(src==null || src.size()==0){
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return null;
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}
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List<V> result = new ArrayList<V>(src.size());
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try{
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for(T t:src){
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V value = null;
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if(propName.contains(".")) {
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String[] propertyNames = propName.split("\\.");
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value = (V) PropertyUtils.getProperty(PropertyUtils.getProperty(t, propertyNames[0]),propertyNames[1]);
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}else {
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value = (V) PropertyUtils.getProperty(t, propName);
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}
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result.add(value);
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}
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} catch (IllegalAccessException e) {
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log.error(e,e);
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} catch (InvocationTargetException e) {
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log.error(e,e);
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} catch (NoSuchMethodException e) {
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log.error(e,e);
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}
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return result;
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}
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/**
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* 将bean列表中的一个属性值作为KEY，另一个属性值作为value
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* @param src
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* @param propertyKey
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* @param propertyVal
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* @return
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* @throws NoSuchMethodException
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* @throws InvocationTargetException
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* @throws IllegalAccessException
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*/
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@SuppressWarnings("unchecked")
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public static final <T,K,V> Map<K,V> mapProperty(List<T> src,String keyProp,String valProp){
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if(src==null || src.size()==0){
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return null;
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}
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Map<K,V> result = new HashMap<K,V>(src.size());
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try{
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for(T t:src){
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K key = null;
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V val = null;
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if(keyProp.contains(".")) {
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String[] keyProps = keyProp.split("\\.");
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key = (K) PropertyUtils.getProperty(PropertyUtils.getProperty(t, keyProps[0]),keyProps[1]);
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}else {
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key = (K) PropertyUtils.getProperty(t, keyProp);
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}
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if(valProp.contains(".")) {
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String[] valProps = valProp.split("\\.");
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val = (V) PropertyUtils.getProperty(PropertyUtils.getProperty(t, valProps[0]),valProps[1]);
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}else {
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val = (V) PropertyUtils.getProperty(t, valProp);
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}
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result.put(key, val);
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}
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} catch (IllegalAccessException e) {
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log.error(e,e);
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} catch (InvocationTargetException e) {
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log.error(e,e);
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} catch (NoSuchMethodException e) {
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log.error(e,e);
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}
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return result;
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}
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/**
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* 将Object 挑选指定属性转换成 Map<String,Object>
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* @param src 源目标
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* @param propertyMap 字段映射
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* @return
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*/
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public static final Map<String,Object> copyPropertiesToMap(Object src,Map<String,String> propertyMap) {
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Map<String,Object> dest = new HashMap<String,Object>(propertyMap.size()*2);
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try {
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for(String key:propertyMap.keySet()) {
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dest.put(propertyMap.get(key),PropertyUtils.getProperty(src, key));
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}
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} catch (IllegalAccessException e) {
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log.error(e,e);
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} catch (InvocationTargetException e) {
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log.error(e,e);
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} catch (NoSuchMethodException e) {
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log.error(e,e);
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}
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return dest;
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}
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}
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