Validatorpublic class Validator extends Object | Performs validation on the page elements. Attributes are checked for
mandatory presence, entry value validity, and consistency. As a
side effect, some page global value (such as those from page directives)
are stored, for later use. |
| Methods Summary |
|---|
| public static void | validate(Compiler compiler, Node.Nodes page)
/*
* Visit the page/tag directives first, as they are global to the page
* and are position independent.
*/
page.visit(new DirectiveVisitor(compiler));
// Determine the default output content type
PageInfo pageInfo = compiler.getPageInfo();
String contentType = pageInfo.getContentType();
if (contentType == null || contentType.indexOf("charset=") < 0) {
boolean isXml = page.getRoot().isXmlSyntax();
String defaultType;
if (contentType == null) {
defaultType = isXml? "text/xml": "text/html";
} else {
defaultType = contentType;
}
String charset = null;
if (isXml) {
charset = "UTF-8";
} else {
if (!page.getRoot().isDefaultPageEncoding()) {
charset = page.getRoot().getPageEncoding();
}
}
if (charset != null) {
pageInfo.setContentType(defaultType + ";charset=" + charset);
} else {
pageInfo.setContentType(defaultType);
}
}
/*
* Validate all other nodes.
* This validation step includes checking a custom tag's mandatory and
* optional attributes against information in the TLD (first validation
* step for custom tags according to JSP.10.5).
*/
page.visit(new ValidateVisitor(compiler));
/*
* Invoke TagLibraryValidator classes of all imported tags
* (second validation step for custom tags according to JSP.10.5).
*/
validateXmlView(new PageDataImpl(page, compiler), compiler);
/*
* Invoke TagExtraInfo method isValid() for all imported tags
* (third validation step for custom tags according to JSP.10.5).
*/
page.visit(new TagExtraInfoVisitor(compiler));
| | private static void | validateXmlView(javax.servlet.jsp.tagext.PageData xmlView, Compiler compiler)Validate XML view against the TagLibraryValidator classes of all
imported tag libraries.
StringBuffer errMsg = null;
ErrorDispatcher errDisp = compiler.getErrorDispatcher();
for (Iterator iter=compiler.getPageInfo().getTaglibs().iterator();
iter.hasNext(); ) {
Object o = iter.next();
if (!(o instanceof TagLibraryInfoImpl))
continue;
TagLibraryInfoImpl tli = (TagLibraryInfoImpl) o;
ValidationMessage[] errors = tli.validate(xmlView);
if ((errors != null) && (errors.length != 0)) {
if (errMsg == null) {
errMsg = new StringBuffer();
}
errMsg.append("<h3>");
errMsg.append(Localizer.getMessage("jsp.error.tlv.invalid.page",
tli.getShortName()));
errMsg.append("</h3>");
for (int i=0; i<errors.length; i++) {
if (errors[i] != null) {
errMsg.append("<p>");
errMsg.append(errors[i].getId());
errMsg.append(": ");
errMsg.append(errors[i].getMessage());
errMsg.append("</p>");
}
}
}
}
if (errMsg != null) {
errDisp.jspError(errMsg.toString());
}
|
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