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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.core.jackson;
    18
    19  import java.io.IOException;
    20  import java.util.Map;
    21  import java.util.Map.Entry;
    22  import java.util.Set;
    23
    24  import com.fasterxml.jackson.core.JsonGenerationException;
    25  import com.fasterxml.jackson.core.JsonGenerator;
    26  import com.fasterxml.jackson.databind.SerializerProvider;
    27  import com.fasterxml.jackson.databind.ser.std.StdSerializer;
    28
    29  /**
    30   * <p>
    31   * <em>Consider this class private.</em>
    32   * </p>
    33   */
    34  @SuppressWarnings("rawtypes")
    35  public class ListOfMapEntrySerializer extends StdSerializer<Map> {
    36
    37      protected ListOfMapEntrySerializer() {
    38          super(Map.class);
    39      }
    40
    41      @Override
    42      public void serialize(final Map map, final JsonGenerator jgen, final SerializerProvider provider) throws IOException, JsonGenerationException {
    43          @SuppressWarnings("unchecked")
    44          final Set<Entry<String, String>> entrySet = map.entrySet();
    45          final MapEntry[] pairs = new MapEntry[entrySet.size()];
    46          int i = 0;
    47          for (final Entry<String, String> entry : entrySet) {
    48              pairs[i++] = new MapEntry(entry.getKey(), entry.getValue());
    49          }
    50          jgen.writeObject(pairs);
    51      }
    52
    53  }