com.rt.logic.util.LogicUtil Maven / Gradle / Ivy
package com.rt.logic.util;
import com.json.JSONObject;
import com.rt.core.constant.RTConst;
import com.rt.core.util.RTUtil;
import com.rt.core.util.XMLUtil;
import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.Element;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* 规则助手
*/
public class LogicUtil {
/**
* 获取配置文件节点
*
* @param config config
* @param id id
* @return Element ProductElement
*/
public static Element findElementById(Document config, String id) {
// 取得节点
return XMLUtil.selectSingleElement(config, "/beans/bean[@id='" + id
+ "']");
}
/**
* 配置文件element to Property
*
* @param element element
* @param property property
* @return Property
*/
public static JSONObject elementToProperty(Element element, JSONObject property) {
if (element == null) {
return property;
}
if (property == null) {
property = new JSONObject();
}
// 设置节点名
property.put("qname", element.getName());
// 复制所有属性
for (Iterator attributeIterator = element.attributeIterator(); attributeIterator
.hasNext(); ) {
Attribute elementAttribute = (Attribute) attributeIterator.next();
property.put(elementAttribute.getName(),
elementAttribute.getValue());
}
// 检查是否有id属性,如果没有,随机生成一个放进去,确保唯一性.
if (RTUtil.isEmpty(property.getId())) {
property.setId(RTUtil.getUUID());
}
// 设置值
if (RTUtil.isNotEmpty(element.getTextTrim())) {
property.setValue(element.getText());
}
// 如果有子节点 递归赋值
Iterator elementIterator = element.elementIterator();
if (elementIterator != null && elementIterator.hasNext()) {
for (Iterator iterator = elementIterator; iterator.hasNext(); ) {
Element subElement = (Element) iterator.next();
// 先尝试获取id
String name = subElement.getName();
Map subPropertyMap;
// 检查属性是否已经存在.
if (property.containsKey(name)) {
subPropertyMap = (Map) property.get(name);
} else {
// 第一次增加属性.
subPropertyMap = new JSONObject();
property.put(name, subPropertyMap);
}
JSONObject subProperty = elementToProperty(subElement,
new JSONObject());
subPropertyMap.put(subProperty.getId(), subProperty);
} // end subElement for
} // end has subElement if
return property;
}
/**
* 配置文件element to Property
*
* @param property property
* @param element element
* @return Property
*/
public static Element propertyToElement(JSONObject property, Element element) {
if (property == null || element == null) {
return null;
}
RTConst.clearObject(property);
// 复制所有属性
for (Iterator iterator = property.keys(); iterator.hasNext(); ) {
String key = (String) iterator.next();
Object value = property.get(key);
// 列表属性
if (value instanceof List) {
List list = (List) value;
for (Iterator listIterator = list.iterator(); listIterator
.hasNext(); ) {
Object o = listIterator.next();
if (o instanceof JSONObject) {
JSONObject prop = new JSONObject((JSONObject) o);
propertyToElement(prop, element.addElement(key));
}
}
} else if (value instanceof Map) {
// 对象属性
} else {
if (RTConst.VALUE.equals(key) && RTUtil.isNotEmpty(value)) {
element.addCDATA(RTUtil.val(value));
} else {
// 普通属性
Attribute attribute = element.attribute(key);
if (attribute != null) {
attribute.setValue(RTUtil.val(value));
} else {
element.addAttribute(key, RTUtil.val(value));
}
}
}
}
return element;
}
}