package info.glogalcode.parameterLister.modules;

 import info.glogalcode.parameterLister.OutputModule;

 import info.glogalcode.parameterLister.OutputModuleException;

 import java.io.OutputStream;

 import java.io.PrintWriter;

 import java.util.List;

 /**

  * Just a simple XML output.

  * For more complex documents, use {@linkplain javax.xml.stream.XMLStreamWriter}

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public class XmlModule implements OutputModule {

 	@Override

 	public void process(OutputStream output, List<String> parameters) throws OutputModuleException {

 		try (PrintWriter out = new PrintWriter(output)) {

 			out.println("<parameters>");

 			for (String parameter : parameters) {

 				out.print("\t<parameter>");

 				out.print(escapeXmlText(parameter));

 				out.println("</parameter>");

 				out.flush();

 			}

 			out.println("</parameters>");

 		}

 	}

 	/**

 	 * @param s original text

 	 * @return escaped text that can be safely concatenated between two XML tags (not safe for

 	 * attribute

 	 * values)

 	 */

 	private static String escapeXmlText(String s) {

 		return s.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;");

 	}

 }