001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements. See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache license, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License. You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the license for the specific language governing permissions and
015     * limitations under the license.
016     */
017    package org.apache.logging.slf4j;
018    
019    import java.util.Map;
020    
021    import org.apache.logging.log4j.message.Message;
022    import org.apache.logging.log4j.message.ParameterizedMessage;
023    import org.apache.logging.log4j.message.StructuredDataMessage;
024    import org.slf4j.ext.EventData;
025    
026    /**
027     *
028     */
029    public class EventDataConverter {
030    
031        public Message convertEvent(final String message, final Object[] objects, final Throwable throwable) {
032            try {
033                final EventData data = objects != null && objects[0] instanceof EventData ?
034                        (EventData) objects[0] : new EventData(message);
035                final StructuredDataMessage msg =
036                        new StructuredDataMessage(data.getEventId(), data.getMessage(), data.getEventType());
037                for (final Map.Entry<String, Object> entry : data.getEventMap().entrySet()) {
038                    final String key = entry.getKey();
039                    if (EventData.EVENT_TYPE.equals(key) || EventData.EVENT_ID.equals(key)
040                            || EventData.EVENT_MESSAGE.equals(key)) {
041                        continue;
042                    }
043                    msg.put(key, String.valueOf(entry.getValue()));
044                }
045                return msg;
046            } catch (final Exception ex) {
047                return new ParameterizedMessage(message, objects, throwable);
048            }
049        }
050    }