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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.slf4j.helpers;
18  
19  import java.util.Map;
20  
21  import org.apache.logging.log4j.message.Message;
22  import org.apache.logging.log4j.message.ParameterizedMessage;
23  import org.apache.logging.log4j.message.StructuredDataMessage;
24  import org.slf4j.ext.EventData;
25  
26  /**
27   *
28   */
29  public class EventDataConverter {
30  
31      public Message convertEvent(final String message, final Object[] objects, final Throwable throwable) {
32          try {
33              final EventData data = objects != null && objects[0] instanceof EventData ?
34                      (EventData) objects[0] : new EventData(message);
35              final StructuredDataMessage msg =
36                      new StructuredDataMessage(data.getEventId(), data.getMessage(), data.getEventType());
37              for (final Map.Entry<String, Object> entry : data.getEventMap().entrySet()) {
38                  final String key = entry.getKey();
39                  if (EventData.EVENT_TYPE.equals(key) || EventData.EVENT_ID.equals(key)
40                          || EventData.EVENT_MESSAGE.equals(key)) {
41                      continue;
42                  }
43                  msg.put(key, String.valueOf(entry.getValue()));
44              }
45              return msg;
46          } catch (final Exception ex) {
47              return new ParameterizedMessage(message, objects, throwable);
48          }
49      }
50  }