/*
* Copyright 1999-2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.log4j.varia;
import org.apache.log4j.spi.Filter;
import org.apache.log4j.spi.LoggingEvent;
/**
This filter drops all logging events.
<p>You can add this filter to the end of a filter chain to
switch from the default "accept all unless instructed otherwise"
filtering behaviour to a "deny all unless instructed otherwise"
behaviour.
@author Ceki Gülcü
@since 0.9.0 */
public class DenyAllFilter extends Filter {
/**
Returns <code>null</code> as there are no options.
@deprecated We now use JavaBeans introspection to configure
components. Options strings are no longer needed.
*/
public
String[] getOptionStrings() {
return null;
}
/**
No options to set.
@deprecated Use the setter method for the option directly instead
of the generic <code>setOption</code> method.
*/
public
void setOption(String key, String value) {
}
/**
Always returns the integer constant {@link Filter#DENY}
regardless of the {@link LoggingEvent} parameter.
@param event The LoggingEvent to filter.
@return Always returns {@link Filter#DENY}.
*/
public
int decide(LoggingEvent event) {
return Filter.DENY;
}
}