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 */ 017package org.apache.logging.log4j.core.jackson; 018 019import java.io.IOException; 020import java.util.Map; 021import java.util.Map.Entry; 022import java.util.Set; 023 024import com.fasterxml.jackson.core.JsonGenerationException; 025import com.fasterxml.jackson.core.JsonGenerator; 026import com.fasterxml.jackson.databind.SerializerProvider; 027import com.fasterxml.jackson.databind.ser.std.StdSerializer; 028 029/** 030 * <p> 031 * <em>Consider this class private.</em> 032 * </p> 033 */ 034public class ListOfMapEntrySerializer extends StdSerializer<Map<String, String>> { 035 036 private static final long serialVersionUID = 1L; 037 038 protected ListOfMapEntrySerializer() { 039 super(Map.class, false); 040 } 041 042 @Override 043 public void serialize(final Map<String, String> map, final JsonGenerator jgen, final SerializerProvider provider) 044 throws IOException, JsonGenerationException { 045 final Set<Entry<String, String>> entrySet = map.entrySet(); 046 final MapEntry[] pairs = new MapEntry[entrySet.size()]; 047 int i = 0; 048 for (final Entry<String, String> entry : entrySet) { 049 pairs[i++] = new MapEntry(entry.getKey(), entry.getValue()); 050 } 051 jgen.writeObject(pairs); 052 } 053 054}