D-Net

package gr.uoa.di.driver.xml;

import java.lang.reflect.Method;

import java.util.Date;

import java.util.GregorianCalendar;

import javax.xml.datatype.DatatypeConfigurationException;

import javax.xml.datatype.DatatypeFactory;

import javax.xml.datatype.XMLGregorianCalendar;

import net.sf.cglib.proxy.Enhancer;

import net.sf.cglib.proxy.MethodInterceptor;

import net.sf.cglib.proxy.MethodProxy;

import org.apache.commons.lang3.StringEscapeUtils;

import eu.dnetlib.miscutils.datetime.DateUtils;

/**

 * A simple class to provide support for conversion

 * of dates from/to strings, according to the ISO muble muble standard.

 * 

 * @author <a href="antleb@di.uoa.gr">Antonis Lempesis</a>

 * 

 */

public abstract class ConversionUtils {

	public static String DateToString(Date date) {

		return new DateUtils(date).getDateAsISO8601String();

	}

	public static Date parseDate(String dateString) {

		return new DateUtils().parse(dateString);

	}

	public static XMLGregorianCalendar toXMLGregorianCalendar(Date date) {

		try {

			DatatypeFactory factory = DatatypeFactory.newInstance();

			GregorianCalendar calendar = new GregorianCalendar();

			calendar.setTime(date);

			return factory.newXMLGregorianCalendar(calendar);

		} catch (DatatypeConfigurationException e) {

			return null;

		}

	}

	public static Date toDate(XMLGregorianCalendar calendar) {

		return calendar.toGregorianCalendar().getTime();

	}

	@SuppressWarnings("unchecked")

	public static <T> T createProxy(T originalObject) {

		Enhancer enhancer = new Enhancer();

		enhancer.setSuperclass(originalObject.getClass());

        enhancer.setCallback(new XMLEscapingInterceptor(originalObject));

		return (T) enhancer.create();

	}

}

class XMLEscapingInterceptor implements MethodInterceptor {

	private Object originalObject = null;

	public XMLEscapingInterceptor(Object original) {

		this.originalObject = original;

	}

	@Override

	public Object intercept(Object obj, Method method, Object[] args,

			MethodProxy methodProxy) throws Throwable {

		if (method.getName().startsWith("get") && method.getReturnType().equals(String.class)) {

			String res = (String) method.invoke(originalObject, args);

			return StringEscapeUtils.escapeXml(res);

		} else {

			return  method.invoke(originalObject, args);

		}

	}

}