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.config.yaml; 018 019import java.io.IOException; 020 021import org.apache.logging.log4j.core.config.Configuration; 022import org.apache.logging.log4j.core.config.ConfigurationSource; 023import org.apache.logging.log4j.core.config.json.JsonConfiguration; 024 025import com.fasterxml.jackson.core.JsonParser; 026import com.fasterxml.jackson.databind.ObjectMapper; 027import com.fasterxml.jackson.dataformat.yaml.YAMLFactory; 028 029public class YamlConfiguration extends JsonConfiguration { 030 031 public YamlConfiguration(final ConfigurationSource configSource) { 032 super(configSource); 033 } 034 035 @Override 036 protected ObjectMapper getObjectMapper() { 037 return new ObjectMapper(new YAMLFactory()).configure(JsonParser.Feature.ALLOW_COMMENTS, true); 038 } 039 040 @Override 041 public Configuration reconfigure() { 042 try { 043 final ConfigurationSource source = getConfigurationSource().resetInputStream(); 044 if (source == null) { 045 return null; 046 } 047 return new YamlConfiguration(source); 048 } catch (final IOException ex) { 049 LOGGER.error("Cannot locate file {}", getConfigurationSource(), ex); 050 } 051 return null; 052 } 053}