The version of Apache log4j used by SoundHelix.

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1.3alpha-7 :: tests / src / java / org / apache / log4j / performance /

NullAppender.java

/*
 * 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.performance;

import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Layout;
import org.apache.log4j.spi.LoggingEvent;


/**
 * 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() {
      super(true);
  }

  public NullAppender(Layout layout) {
    super(true);
    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) {
  }
}
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