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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements. See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache license, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License. You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the license for the specific language governing permissions and
15   * limitations under the license.
16   */
17  package org.apache.logging.log4j.flume.appender;
18  
19  import org.apache.logging.log4j.core.LogEvent;
20  
21  /**
22   * Factory to create Flume events.
23   */
24  public interface FlumeEventFactory {
25      /**
26       * Create a Flume event.
27       * @param event The Log4j LogEvent.
28       * @param includes A comma separated list of MDC elements to include.
29       * @param excludes A comma separated list of MDC elements to exclude.
30       * @param required A comma separated list of MDC elements that are required.
31       * @param mdcPrefix The value to prefix to MDC keys.
32       * @param eventPrefix The value to prefix to event keys.
33       * @param compress If true the event body should be compressed.
34       * @return A FlumeEvent.
35       */
36      FlumeEvent createEvent(LogEvent event, String includes, String excludes, String required,
37                        String mdcPrefix, String eventPrefix, boolean compress);
38  }