    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    }