/* * Copyright 2001-2004 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.commons.logging.log4j;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import org.apache.log4j.AppenderSkeleton;import org.apache.log4j.spi.LoggingEvent;/** * <p>Test implementation of <code>org.apache.log4j.Appender</code>.</p> * * @author Craig R. McClanahan * @version $Revision: 1.4 $ $Date: 2004/02/28 21:46:46 $ */public class TestAppender extends AppenderSkeleton {    // ----------------------------------------------------- Instance Variables    // The set of logged events for this appender    private List events = new ArrayList();    // --------------------------------------------------------- Public Methods    public Iterator events() {        return (events.iterator());    }    public void flush() {        events.clear();    }    // ------------------------------------------------------- Appender Methods    protected void append(LoggingEvent event) {        events.add(event);    }    public void close() {    }    public boolean requiresLayout() {        return (false);    }}