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.log4j.core.jackson;
018    
019    import java.io.IOException;
020    import java.util.Map;
021    import java.util.Map.Entry;
022    import java.util.Set;
023    
024    import com.fasterxml.jackson.core.JsonGenerationException;
025    import com.fasterxml.jackson.core.JsonGenerator;
026    import com.fasterxml.jackson.databind.SerializerProvider;
027    import com.fasterxml.jackson.databind.ser.std.StdSerializer;
028    
029    /**
030     * <p>
031     * <em>Consider this class private.</em>
032     * </p>
033     */
034    @SuppressWarnings("rawtypes")
035    public class ListOfMapEntrySerializer extends StdSerializer<Map> {
036    
037        protected ListOfMapEntrySerializer() {
038            super(Map.class);
039        }
040    
041        @Override
042        public void serialize(final Map map, final JsonGenerator jgen, final SerializerProvider provider) throws IOException, JsonGenerationException {
043            @SuppressWarnings("unchecked")
044            final Set<Entry<String, String>> entrySet = map.entrySet();
045            final MapEntry[] pairs = new MapEntry[entrySet.size()];
046            int i = 0;
047            for (final Entry<String, String> entry : entrySet) {
048                pairs[i++] = new MapEntry(entry.getKey(), entry.getValue());
049            }
050            jgen.writeObject(pairs);
051        }
052    
053    }