log4j-flume-ng/src/main/java/org/apache/logging/log4j/flume/appender/FlumeEventFactory.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.flume.appender;

import org.apache.logging.log4j.core.LogEvent;

/**
 * Factory to create Flume events.
 */
public interface FlumeEventFactory {

    /**
     * Creates a Flume event.
     * @param event The Log4j LogEvent.
     * @param includes A comma separated list of MDC elements to include.
     * @param excludes A comma separated list of MDC elements to exclude.
     * @param required A comma separated list of MDC elements that are required.
     * @param mdcPrefix The value to prefix to MDC keys.
     * @param eventPrefix The value to prefix to event keys.
     * @param compress If true the event body should be compressed.
     * @return A FlumeEvent.
     */
    FlumeEvent createEvent(LogEvent event, String includes, String excludes, String required,
                      String mdcPrefix, String eventPrefix, boolean compress);
}