log4j-core/src/test/java/org/apache/logging/log4j/test/appender/UsesLoggingAppender.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.logging.log4j.test.appender;

import org.apache.logging.log4j.core.Appender;
import org.apache.logging.log4j.core.Core;
import org.apache.logging.log4j.core.Filter;
import org.apache.logging.log4j.core.Layout;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.core.config.Property;
import org.apache.logging.log4j.plugins.Plugin;
import org.apache.logging.log4j.plugins.PluginAttribute;
import org.apache.logging.log4j.plugins.PluginElement;
import org.apache.logging.log4j.plugins.PluginFactory;
import org.apache.logging.log4j.plugins.validation.constraints.Required;
import org.apache.logging.log4j.test.SomethingThatUsesLogging;

/**
 *
 */
@Plugin(name = "UsesLoggingAppender", category = Core.CATEGORY_NAME, elementType = Appender.ELEMENT_TYPE, printObject = true)
public final class UsesLoggingAppender extends AbstractAppender {

    private final SomethingThatUsesLogging thing;

    private UsesLoggingAppender(final String name, final Filter filter, final Layout<?> layout, final boolean ignoreExceptions) {
        super(name, filter, layout, ignoreExceptions, Property.EMPTY_ARRAY);
        thing = new SomethingThatUsesLogging();
    }

    @PluginFactory
    public static UsesLoggingAppender createAppender(
        @PluginAttribute @Required(message = "A name for the Appender must be specified") final String name,
        @PluginAttribute("ignoreExceptions") final boolean ignore,
        @PluginElement final Layout<?> layout,
        @PluginElement final Filter filter) {
        return new UsesLoggingAppender(name, filter, layout, ignore);
    }

    @Override
    public void append(final LogEvent event) {
        try {
            for (int i = 0; i < 50; i++) {
                Thread.sleep(10);
                thing.doSomething();
            }
        } catch (final InterruptedException e) {
            e.printStackTrace();
        }
        // System.out.print("Log: " + getLayout().toSerializable(event));
    }
}