Module org.apache.wicket.core

Package org.apache.wicket.markup.parser.filter

Class HtmlProblemFinder

java.lang.Object

org.apache.wicket.markup.parser.AbstractMarkupFilter

org.apache.wicket.markup.parser.filter.HtmlProblemFinder

All Implemented Interfaces:

IMarkupFilter

public final class HtmlProblemFinder
extends AbstractMarkupFilter

This is a markup inline filter which by default is not added to the list of markup filter. It can be added by means of subclassing Application.newMarkupParser() like

 Application#init() {
   getMarkupSettings().setMarkupParserFactory() {
      new MarkupParserFactory() {
        MarkupParser newMarkupParser(final MarkupResourceStream resource) {
                  MarkupParser parser=super.newMarkupParser(resource);
            parser.appendMarkupFilter(new HtmlProblemFinder(HtmlProblemFinder.ERR_THROW_EXCEPTION));
            return parser;
          }
       }
    }
 }
 

The purpose of the filter is to find possible HTML issues and to log a warning.

Author:

Juergen Donnerstag

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ERR_INGORE	Ignore the issue detected
static final int	ERR_LOG_ERROR	Log an error on the issue detected
static final int	ERR_LOG_WARN	Log a warning on the issue detected
static final int	ERR_THROW_EXCEPTION	Throw an exception on the issue detected

Fields inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter

REQUEST_COUNTER_KEY

Constructor Summary

Constructors

Constructor	Description
HtmlProblemFinder(int problemEscalation)	Construct.

Method Summary

Modifier and Type	Method	Description
protected final MarkupElement	onComponentTag(ComponentTag tag)	Invoked when a ComponentTag was found.

Methods inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter

getMarkupResourceStream, getNextFilter, getRequestUniqueId, getWicketNamespace, getWicketNamespace, nextElement, onSpecialTag, postProcess, setNextFilter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

ERR_INGORE

public static final int ERR_INGORE

Ignore the issue detected

See Also:

• Constant Field Values

ERR_LOG_WARN

public static final int ERR_LOG_WARN

Log a warning on the issue detected

See Also:

• Constant Field Values

ERR_LOG_ERROR

public static final int ERR_LOG_ERROR

Log an error on the issue detected

See Also:

• Constant Field Values

ERR_THROW_EXCEPTION

public static final int ERR_THROW_EXCEPTION

Throw an exception on the issue detected

See Also:

• Constant Field Values

Constructor Details

HtmlProblemFinder

public HtmlProblemFinder(int problemEscalation)

Construct.

Parameters:

problemEscalation - How to escalate the issue found.

Method Details

onComponentTag

protected final MarkupElement onComponentTag(ComponentTag tag)
                                      throws ParseException

Description copied from class: AbstractMarkupFilter

Invoked when a ComponentTag was found.

By default this method is also called for WicketTags.

Specified by:

onComponentTag in class AbstractMarkupFilter

Returns:

Usually the same as the tag attribute

Throws:

ParseException