package org.restafarian.core.utils;

 import java.io.StringWriter;

 import java.sql.Timestamp;

 import java.util.Date;

 import org.apache.commons.beanutils.ConvertUtils;

 import org.apache.commons.beanutils.Converter;

 import org.apache.commons.betwixt.io.BeanWriter;

 import org.apache.commons.betwixt.strategy.ConvertUtilsObjectStringConverter;

 /**

  * <p>A collection of static methods for using Betwixt.</p>

  */

 public class BetwixtTool {

         /**

          * <p>Converts a single Java bean to XML.</p>

          * 

          * @param bean the bean to convert

          * @return the bean in XML format

          */

         public static String toXml(Object bean) {

                 return toXml(bean, null, true);

         }

         /**

          * <p>Converts a single Java bean to XML.</p>

          * 

          * @param bean the bean to convert

          * @param xsl the URL for the XSL stylesheet for this bean

          * @return the bean in XML format

          */

         public static String toXml(Object bean, String xsl) {

                 return toXml(bean, xsl, true);

         }

         /**

          * <p>Converts a single Java bean to XML.</p>

          * 

          * @param bean the bean to convert

          * @param includeDeclaration when true, adds the XML declaration to the output

          * @return the bean in XML format

          */

         public static String toXml(Object bean, boolean includeDeclaration) {

                 return toXml(bean, null, includeDeclaration);

         }

         /**

          * <p>Converts a single Java bean to XML.</p>

          * 

          * @param bean the bean to convert

          * @param xsl the URL for the XSL stylesheet for this bean

          * @param includeDeclaration when true, adds the XML declaration to the output

          * @return the bean in XML format

          */

         public static String toXml(Object bean, String xsl, boolean includeDeclaration) {

                 // set up ISO 8601 date convertion

                 Converter dateConverter = new ISO8601DateConverter();

                 ConvertUtils.register(dateConverter, Date.class);

                 ConvertUtils.register(dateConverter, Timestamp.class);

                 ConvertUtils.register(dateConverter, String.class);

                 // set up XML bean writer

                 StringWriter out = new StringWriter();

                 BeanWriter writer = new BeanWriter(out);

                 writer.enablePrettyPrint();

                 writer.setInitialIndentLevel(0);

                 writer.getBindingConfiguration().setMapIDs(false);

                 writer.getBindingConfiguration().setObjectStringConverter(new ConvertUtilsObjectStringConverter());

                 // create XML using bean writer

                 String xml = "";

                 try {

                         if (includeDeclaration) {

                                 writer.writeXmlDeclaration("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");

                                 if (xsl != null && !"".equals(xsl.trim())) {

                                         writer.writeXmlDeclaration("<?xml-stylesheet type=\"text/xsl\" href=\"" + xsl + "\"?>");

                                 }

                         }

                         writer.write(bean);

                         out.flush();

                         xml = out.toString();

                 } catch (Exception e) {

                         e.printStackTrace();

                 }

                 return xml;

         }

 }