XML 메시지 지원 개발

src/main/java/com/eactive/eai/common/util/XMLUtils.java

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+package com.eactive.eai.common.util;
+
+import java.io.StringReader;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.dom4j.Document;
+import org.dom4j.DocumentException;
+import org.dom4j.DocumentHelper;
+import org.dom4j.Element;
+import org.dom4j.io.SAXReader;
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+
+public class XMLUtils {
+	
+	private XMLUtils() {
+		throw new IllegalStateException("Utility class");
+	}
+	
+	public static Document convertXmlDocument(Object message) throws DocumentException {
+		if (message == null)
+			return DocumentHelper.createDocument();
+		else if (message instanceof Document)
+			return (Document) message;
+		else if  (message instanceof String) {
+			SAXReader builder = new SAXReader();
+			return builder.read(new StringReader((String)message));
+		} else
+			throw new IllegalArgumentException("not support xml type. " + message.getClass());
+	}
+	
+	public static List<Element> getChilds(Element parent) {
+		List<Element> elements = new ArrayList<>();
+		Iterator<Element> iterator = parent.elementIterator();
+		while(iterator.hasNext()) {
+			Element child = iterator.next();
+			elements.add(child);
+			elements.addAll(getChilds(child));
+		}
+		return elements;
+	}
+	
+	public static List<Element> getChildsLevel1(Element parent) {
+		List<Element> elements = new ArrayList<>();
+		Iterator<Element> iterator = parent.elementIterator();
+		while(iterator.hasNext()) {
+			Element child = iterator.next();
+			elements.add(child);
+		}
+		return elements;
+	}
+	
+	@SuppressWarnings("unchecked")
+	public static Object elementToJSONObject(Element element) {
+		JSONObject json = new JSONObject();
+		
+		List<Element> children = element.elements();
+		if(children.isEmpty()) {
+			return element.getText();
+		}
+		for(Element child : children) {
+			String childName = child.getName();
+			if(json.containsKey(childName)) {
+				Object existing = json.get(childName);
+				if(existing instanceof JSONArray) {
+					((JSONArray) existing).add(elementToJSONObject(child));
+				} else {
+					JSONArray list = new JSONArray();
+					list.add(existing);
+					list.add(elementToJSONObject(child));
+					json.put(childName, list);
+				}
+			} else {
+				json.put(childName, elementToJSONObject(child));
+			}
+		}
+		
+		return json;
+	}
+	
+	public static Element getElement(Element parent, String path) {
+		String[] keys = path.split("\\.");
+		Element current = parent;
+		for(String key : keys) {
+			current = current.element(key);
+		}
+		return (Element) current.elements().get(0);
+	}
+	
+
+}