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; 018 019import org.apache.logging.log4j.core.config.plugins.Plugin; 020 021/** 022 * 023 */ 024@Plugin(name = "JSONConfigurationFactory", category = "ConfigurationFactory") 025@Order(6) 026public class JSONConfigurationFactory extends ConfigurationFactory { 027 028 /** 029 * The file extensions supported by this factory. 030 */ 031 public static final String[] SUFFIXES = new String[] {".json", ".jsn"}; 032 033 private static String[] dependencies = new String[] { 034 "com.fasterxml.jackson.databind.ObjectMapper", 035 "com.fasterxml.jackson.databind.JsonNode", 036 "com.fasterxml.jackson.core.JsonParser" 037 }; 038 039 private boolean isActive; 040 041 public JSONConfigurationFactory() { 042 try { 043 for (final String item : dependencies) { 044 Class.forName(item); 045 } 046 } catch (final ClassNotFoundException ex) { 047 LOGGER.debug("Missing dependencies for Json support"); 048 isActive = false; 049 return; 050 } 051 isActive = true; 052 } 053 054 @Override 055 protected boolean isActive() { 056 return isActive; 057 } 058 059 @Override 060 public Configuration getConfiguration(final ConfigurationSource source) { 061 if (!isActive) { 062 return null; 063 } 064 return new JSONConfiguration(source); 065 } 066 067 @Override 068 public String[] getSupportedTypes() { 069 return SUFFIXES; 070 } 071}