| /* |
| * 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; |
| } |
| } |