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package validators;
import java.io.InputStream;
import java.io.IOException;
import javax.servlet.jsp.tagext.PageData;
import javax.servlet.jsp.tagext.TagLibraryValidator;
import javax.servlet.jsp.tagext.ValidationMessage;
/**
* Example tag library validator that simply dumps the XML version of each
* page to standard output (which will typically be sent to the file
* <code>$CATALINA_HOME/logs/catalina.out</code>). To utilize it, simply
* include a <code>taglib</code> directive for this tag library at the top
* of your JSP page.
*
* @author Craig McClanahan
* @version $Revision: 1.3 $ $Date: 2007/05/05 05:34:14 $
*/
public class DebugValidator extends TagLibraryValidator {
// ----------------------------------------------------- Instance Variables
// --------------------------------------------------------- Public Methods
/**
* Validate a JSP page. This will get invoked once per directive in the
* JSP page. This method will return <code>null</code> if the page is
* valid; otherwise the method should return an array of
* <code>ValidationMessage</code> objects. An array of length zero is
* also interpreted as no errors.
*
* @param prefix The value of the prefix argument in this directive
* @param uri The value of the URI argument in this directive
* @param page The page data for this page
*/
public ValidationMessage[] validate(String prefix, String uri,
PageData page) {
System.out.println("---------- Prefix=" + prefix + " URI=" + uri +
"----------");
InputStream is = page.getInputStream();
while (true) {
try {
int ch = is.read();
if (ch < 0)
break;
System.out.print((char) ch);
} catch (IOException e) {
break;
}
}
System.out.println();
System.out.println("-----------------------------------------------");
return (null);
}
}
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