/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software
* License version 1.1, a copy of which has been included with this
* distribution in the LICENSE.txt file. */
package org.apache.log4j.performance;
import org.apache.log4j.Layout;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.log4j.AppenderSkeleton;
/**
* A bogus appender which calls the format method of its layout object
* but does not write the result anywhere.
*
* <p><b> <font color="#FF2222">The
* <code>org.apache.log4j.performance.NullAppender</code> class is
* intended for internal use only.</font> Consequently, it is not
* included in the <em>log4j.jar</em> file.</b> </p>
* */
public class NullAppender extends AppenderSkeleton {
public static String s;
public String t;
public
NullAppender() {}
public
NullAppender(Layout layout) {
this.layout = layout;
}
public
void close() {}
public
void doAppend(LoggingEvent event) {
if(layout != null) {
t = layout.format(event);
s = t;
}
}
public
void append(LoggingEvent event) {
}
/**
This is a bogus appender but it still uses a layout.
*/
public
boolean requiresLayout() {
return true;
}
}
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