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.List; 021import java.util.Map; 022 023import org.apache.logging.log4j.core.impl.ContextDataFactory; 024import org.apache.logging.log4j.util.StringMap; 025 026import com.fasterxml.jackson.core.JsonParser; 027import com.fasterxml.jackson.core.JsonProcessingException; 028import com.fasterxml.jackson.core.type.TypeReference; 029import com.fasterxml.jackson.databind.DeserializationContext; 030import com.fasterxml.jackson.databind.deser.std.StdDeserializer; 031 032/** 033 * <p> 034 * <em>Consider this class private.</em> 035 * </p> 036 */ 037public class ContextDataAsEntryListDeserializer extends StdDeserializer<StringMap> { 038 039 private static final long serialVersionUID = 1L; 040 041 ContextDataAsEntryListDeserializer() { 042 super(Map.class); 043 } 044 045 @Override 046 public StringMap deserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, 047 JsonProcessingException { 048 final List<MapEntry> list = jp.readValueAs(new TypeReference<List<MapEntry>>() { 049 // empty 050 }); 051 final StringMap contextData = new ContextDataFactory().createContextData(); 052 for (final MapEntry mapEntry : list) { 053 contextData.putValue(mapEntry.getKey(), mapEntry.getValue()); 054 } 055 return contextData; 056 } 057}