private static boolean isWhitespace(String text) {
    if (text == null) return true;

    boolean isWhitespace = true;

    for (int i = text.length() - 1; i >= 0; i--) {
      char ch = text.charAt(i);

      if (!Character.isWhitespace(ch)) {
        // check for comment
        if (ch == '>' && text.indexOf("-->") + 2 == i) {
          int head = text.indexOf("<!--");

          if (head >= 0) {
            for (int j = 0; j < head; j++) {
              if (!Character.isWhitespace(text.charAt(j))) {
                return false;
              }
            }

            return true;
          }
        }

        return false;
      }
    }

    return true;
  }
Exemple #2
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  private void printComponentTree(
      PrintWriter out, String errorId, FacesContext context, UIComponent comp, int depth) {
    for (int i = 0; i < depth; i++) out.print(' ');

    boolean isError = false;
    if (errorId != null && errorId.equals(comp.getClientId(context))) {
      isError = true;
      out.print("<span style='color:red'>");
    }

    out.print("&lt;" + comp.getClass().getSimpleName());
    if (comp.getId() != null) out.print(" id=\"" + comp.getId() + "\"");

    for (Method method : comp.getClass().getMethods()) {
      if (!method.getName().startsWith("get") && !method.getName().startsWith("is")) continue;
      else if (method.getParameterTypes().length != 0) continue;

      String name;

      if (method.getName().startsWith("get")) name = method.getName().substring(3);
      else if (method.getName().startsWith("is")) name = method.getName().substring(2);
      else continue;

      // XXX: getURL
      name = Character.toLowerCase(name.charAt(0)) + name.substring(1);

      ValueExpression expr = comp.getValueExpression(name);

      Class type = method.getReturnType();

      if (expr != null) {
        out.print(" " + name + "=\"" + expr.getExpressionString() + "\"");
      } else if (method.getDeclaringClass().equals(UIComponent.class)
          || method.getDeclaringClass().equals(UIComponentBase.class)) {
      } else if (name.equals("family")) {
      } else if (String.class.equals(type)) {
        try {
          Object value = method.invoke(comp);

          if (value != null) out.print(" " + name + "=\"" + value + "\"");
        } catch (Exception e) {
        }
      }
    }

    int facetCount = comp.getFacetCount();
    int childCount = comp.getChildCount();

    if (facetCount == 0 && childCount == 0) {
      out.print("/>");

      if (isError) out.print("</span>");

      out.println();
      return;
    }
    out.println(">");

    if (isError) out.print("</span>");

    for (int i = 0; i < childCount; i++) {
      printComponentTree(out, errorId, context, comp.getChildren().get(i), depth + 1);
    }

    for (int i = 0; i < depth; i++) out.print(' ');

    if (isError) out.print("<span style='color:red'>");

    out.println("&lt;/" + comp.getClass().getSimpleName() + ">");

    if (isError) out.print("</span>");
  }