functions.java

来自「pojo的mvc框架」· Java 代码 · 共 49 行

package xyz.frame.view;

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

import org.apache.log4j.Logger;

/**
 * Simple functions for complex taglibs
 * 
 * @author Guilherme Silveira
 */
public class Functions {

	private static final Logger logger = Logger.getLogger(Functions.class);

	public static Object getProperty(Object o, String field) {
		field = Character.toUpperCase(field.charAt(0))
				+ field.substring(1, field.length());
		try {
			return o.getClass().getMethod("get" + field).invoke(o);
		} catch (Exception e) {
			Functions.logger.error("Unable to call getter", e);
			throw new RuntimeException(e);
		}
	}

	@SuppressWarnings("unchecked")
	public static List setToList(Set set) {
		if (set == null) {
			return null;
		}
		return new ArrayList(set);
	}

	/**
	 * Receives a string and translates its line breaks to br tags
	 * 
	 * @param str
	 *            the string
	 * @return the html string
	 */
	public static String stringToHtml(String str) {
		return str.replaceAll("\n", "\n<br>");
	}

}