src/site/antora/modules/ROOT/examples/manual/api/MyApp.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 com.example;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.Marker;
import org.apache.logging.log4j.MarkerManager;

// tag::class[]
public class MyApp {

    private static final Logger LOGGER = LogManager.getLogger();

    private static final Marker ACCOUNT_MARKER = MarkerManager.getMarker("ACCOUNT");

    public void removeUser(String userId) {
        logger.debug(ACCOUNT_MARKER, "Removing user with ID `{}`", userId);
        // ...
    }
}
// end::class[]