package org.webslinger.ext.convertors;

 import java.io.IOException;

 import java.io.StringWriter;

 import java.util.Iterator;

 import java.util.Map;

 import java.util.regex.Pattern;

 import org.webslinger.Webslinger;

 import org.webslinger.WebslingerServletContext;

 import org.webslinger.commons.vfs.FileResolver;

 import org.webslinger.ext.wiki.WikiMacroOutput;

 import org.webslinger.ext.wiki.parser.SimpleNode;

 import org.webslinger.ext.wiki.parser.WikiNewline;

 import org.webslinger.ext.wiki.parser.WikiVisitor;

 import org.webslinger.template.TemplateMacro;

 import org.webslinger.types.template;

 public class WikiVelocityMacroHandler extends WikiMacroOutput {

     public static final Factory FACTORY = new Factory() {

         public WikiVisitor newVisitor(String name, StringWriter writer, FileResolver resolver) {

             return new WikiVelocityMacroHandler(name, writer);

         }

     };

     protected WikiVelocityHelper helper;

     protected WikiVelocityMacroHandler(String name, StringWriter writer) {

         helper = new WikiVelocityHelper(writer);

     }

     protected Plugin detectXml(String name, Object data) {

         try {

             template templateHandler = (template) ((Webslinger) data).getWebslingerServletContext().getTypeHandler("template");

             TemplateMacro macro = templateHandler.findMacro(name);

             if (macro == null) return Plugin.NOT_SUPPORTED;

             return macro.isBlock() ? Plugin.BLOCK : Plugin.EXISTS;

         } catch (IOException e) {

             throw (IllegalArgumentException) new IllegalArgumentException(e.getMessage()).initCause(e);

         }

     }

     protected void appendText(StringBuilder sb, SimpleNode node) {

         if (node instanceof WikiNewline) sb.append(' ');

         super.appendText(sb, node);

     }

     protected void acceptMacro(String name, Object[] args) {

         helper.acceptMacro(name, args);

     }

     protected void endMacro(String name, Object[] args) {

         helper.endMacro(name, args);

     }

     protected void startMacro(String name, Object[] args) {

         helper.startMacro(name, args);

     }

     public Object visit(WikiNewline node, Object data) {

         helper.acceptNewline(node.getCount());

         return super.visit(node, data);

     }

     public void acceptText(String text) {

         helper.acceptText(text);

     }

     protected void acceptXml(String name, Map attributes) {

         helper.acceptXml(name, attributes);

     }

     protected void startXml(String name, Map attributes) {

         helper.startXml(name, attributes);

     }

     protected void endXml(String name, Map attributes) {

         helper.endXml(name, attributes);

     }

     protected void blockNewline() {

         helper.blockNewline();

     }

     public void close() throws IOException {

         helper.close();

     }

     public void flush() throws IOException {

     }

 }