ContentUtils.java

package com.movistar.latam.colportal.util;

import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.xml.Element;
import com.liferay.portal.kernel.xml.Node;
import com.liferay.portal.kernel.xml.SAXReaderUtil;
import com.liferay.portlet.journal.model.JournalArticle;

import java.util.ArrayList;
import java.util.List;

public class ContentUtils {
	
	// ****************************
	// ****** Public Metods *******
	// ****************************

	public static Element getRootEl(JournalArticle ja, String locale) throws Exception {
		String content = ja.getContentByLocale(locale);
		return SAXReaderUtil.read(content).getRootElement();
	}
	
	public static String getStrValFirst(Element root, String name) {
		Node node = root.selectSingleNode(String.format(BASE_NODE, name));
		if (Validator.isNotNull(node)) {
			return GetterUtil.getString(node.getStringValue(), StringPool.BLANK);
		}
		else {
			return StringPool.BLANK;
		}
	}
	
	public static int getIntValFirst(Element root, String name) {
		Node node = root.selectSingleNode(String.format(BASE_NODE, name));
		if (Validator.isNotNull(node)) {
			return GetterUtil.getInteger(node.getStringValue(), -1);
		}
		else {
			return -1;
		}
	}
	
	public static String getStrValSecond(Element root, String parent, String name) {
		Node node = root.selectSingleNode(String.format(BASE_NODE_2, parent, name));
		if (Validator.isNotNull(node)) {
			return GetterUtil.getString(node.getStringValue(), StringPool.BLANK);
		}
		else {
			return StringPool.BLANK;
		}
	}
	
	public static int getIntValSecond(Element root, String parent, String name) {
		Node node = root.selectSingleNode(String.format(BASE_NODE_2, parent, name));
		if (Validator.isNotNull(node)) {
			return GetterUtil.getInteger(node.getStringValue(), -1);
		}
		else {
			return -1;
		}
	}

	public static List<Element> getElementsFirst(Element root, String name) {
		List<Element> result = new ArrayList<>();
		List<Node> nodes = root.selectNodes(String.format(BASE_NODE_EL, name));
		for (Node node : nodes) {
			result.add((Element)node);
		}
		return result;
	}
	
	//****************************
	// **** Private Constants *****
	// ****************************
	
	private static final String BASE_NODE = "dynamic-element[@name='%s']/dynamic-content";
	private static final String BASE_NODE_EL = "dynamic-element[@name='%s']";
	private static final String BASE_NODE_2 = "dynamic-element[@name='%s']/dynamic-element[@name='%s']/dynamic-content";

}