This class is intentional to be extend to get all i18n key-value pairs using Map

AbstractDumpI18nAction.java

package com.gss.tds.dc.struts2.action;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.ResourceBundle;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang3.StringUtils;

import com.opensymphony.xwork2.ActionSupport;

/**
 * This class is intentional to be extend to get all i18n key-value pairs using Map<br>
 *
 * @author xcooper
 *
 */
@Slf4j
public abstract class AbstractDumpI18nAction extends ActionSupport {

  /**
	 *
	 */
	private static final long serialVersionUID = 3997633807822833093L;

	protected AbstractDumpI18nAction() {
		super();
	}

	/**
	 * Get all i18n key-value pairs
	 * @return
	 */
	protected Map<String, String> dumpAllI18nOfAction() {
		Map<String, String> ret = new HashMap<String, String>();
		List<ResourceBundle> rbs = digAllResourceBundlesThroughHierarchy();

		Iterator<ResourceBundle> it = rbs.iterator();
		while (it.hasNext()) {
			ResourceBundle rb = it.next();

			Enumeration<String> keys = rb.getKeys();
			while (keys.hasMoreElements()) {
				String key = keys.nextElement();
				String value = rb.getString(key);

				ret.put(key, value);
			}
		}
		return ret;
	}

	private List<ResourceBundle> digAllResourceBundlesThroughHierarchy() {
		List<ResourceBundle> ret = new ArrayList<ResourceBundle>();
		String className = this.getClass().getName();
		String[] classNameFraguments = className.split("\\.");

		if (log.isTraceEnabled()) {
			log.trace("break down class name - {}", className);
		}

		int len = classNameFraguments.length;
		String clsName = className;
		while(len > 0) {
			ResourceBundle resourceBundle = getTexts(clsName);

			if (resourceBundle != null) {
				ret.add(resourceBundle);
			}

			String[] cnf = Arrays.copyOfRange(classNameFraguments, 0, len--);
			cnf[len] = "package";
			clsName = StringUtils.join(cnf, '.');
		}

		return ret;
	}

}