public void writeXML(PrintWriter out, int indent) {
    XMLUtil.printIndent(out, indent++);
    out.println(
        "<register "
            + (hasId() ? ("id=\"" + getId() + "\" ") : "")
            + "type=\""
            + type
            + "\" variable-name=\""
            + variableName
            + "\">");

    Iterator iter = args.entrySet().iterator();

    while (iter.hasNext()) {
      Map.Entry entry = (Map.Entry) iter.next();
      XMLUtil.printIndent(out, indent);
      out.print("<arg name=\"");
      out.print(entry.getKey());
      out.print("\">");

      if ("beanshell".equals(type) || "bsf".equals(type)) {
        out.print("<![CDATA[");
        out.print(entry.getValue());
        out.print("]]>");
      } else {
        out.print(XMLUtil.encode(entry.getValue()));
      }

      out.println("</arg>");
    }

    XMLUtil.printIndent(out, --indent);
    out.println("</register>");
  }
  public void writeXML(PrintWriter out, int indent) {
    XMLUtil.printIndent(out, indent++);
    out.println("<workflow>");

    Iterator iter = metaAttributes.entrySet().iterator();

    while (iter.hasNext()) {
      Map.Entry entry = (Map.Entry) iter.next();
      XMLUtil.printIndent(out, indent);
      out.print("<meta name=\"");
      out.print(XMLUtil.encode(entry.getKey()));
      out.print("\">");
      out.print(XMLUtil.encode(entry.getValue()));
      out.println("</meta>");
    }

    if (registers.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<registers>");

      for (int i = 0; i < registers.size(); i++) {
        RegisterDescriptor register = (RegisterDescriptor) registers.get(i);
        register.writeXML(out, indent);
      }

      XMLUtil.printIndent(out, --indent);
      out.println("</registers>");
    }

    if (timerFunctions.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<trigger-functions>");

      Iterator iterator = timerFunctions.entrySet().iterator();

      while (iterator.hasNext()) {
        Map.Entry entry = (Map.Entry) iterator.next();
        XMLUtil.printIndent(out, indent++);
        out.println("<trigger-function id=\"" + entry.getKey() + "\">");

        FunctionDescriptor trigger = (FunctionDescriptor) entry.getValue();
        trigger.writeXML(out, indent);
        XMLUtil.printIndent(out, --indent);
        out.println("</trigger-function>");
      }

      while (iterator.hasNext()) {}

      XMLUtil.printIndent(out, --indent);
      out.println("</trigger-functions>");
    }

    if (getGlobalConditions() != null) {
      XMLUtil.printIndent(out, indent++);
      out.println("<global-conditions>");

      getGlobalConditions().writeXML(out, indent);

      out.println("</global-conditions>");
    }

    XMLUtil.printIndent(out, indent++);
    out.println("<initial-actions>");

    for (int i = 0; i < initialActions.size(); i++) {
      ActionDescriptor action = (ActionDescriptor) initialActions.get(i);
      action.writeXML(out, indent);
    }

    XMLUtil.printIndent(out, --indent);
    out.println("</initial-actions>");

    if (globalActions.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<global-actions>");

      for (int i = 0; i < globalActions.size(); i++) {
        ActionDescriptor action = (ActionDescriptor) globalActions.get(i);
        action.writeXML(out, indent);
      }

      XMLUtil.printIndent(out, --indent);
      out.println("</global-actions>");
    }

    if (commonActions.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<common-actions>");

      Iterator iterator = getCommonActions().values().iterator();

      while (iterator.hasNext()) {
        ActionDescriptor action = (ActionDescriptor) iterator.next();
        action.writeXML(out, indent);
      }

      XMLUtil.printIndent(out, --indent);
      out.println("</common-actions>");
    }

    XMLUtil.printIndent(out, indent++);
    out.println("<steps>");

    for (int i = 0; i < steps.size(); i++) {
      StepDescriptor step = (StepDescriptor) steps.get(i);
      step.writeXML(out, indent);
    }

    XMLUtil.printIndent(out, --indent);
    out.println("</steps>");

    if (splits.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<splits>");

      for (int i = 0; i < splits.size(); i++) {
        SplitDescriptor split = (SplitDescriptor) splits.get(i);
        split.writeXML(out, indent);
      }

      XMLUtil.printIndent(out, --indent);
      out.println("</splits>");
    }

    if (joins.size() > 0) {
      XMLUtil.printIndent(out, indent++);
      out.println("<joins>");

      for (int i = 0; i < joins.size(); i++) {
        JoinDescriptor join = (JoinDescriptor) joins.get(i);
        join.writeXML(out, indent);
      }

      XMLUtil.printIndent(out, --indent);
      out.println("</joins>");
    }

    XMLUtil.printIndent(out, --indent);
    out.println("</workflow>");
  }