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.appender.db.jpa.converter; 18 19 import javax.persistence.AttributeConverter; 20 import javax.persistence.Converter; 21 22 import org.apache.logging.log4j.Level; 23 import org.apache.logging.log4j.util.Strings; 24 25 /** 26 * A JPA 2.1 attribute converter for {@link org.apache.logging.log4j.Level}s in {@link org.apache.logging.log4j.core.LogEvent}s. This 27 * converter is capable of converting both to and from {@link String}s. 28 */ 29 @Converter(autoApply = false) 30 public class LevelAttributeConverter implements AttributeConverter<Level, String> { 31 @Override 32 public String convertToDatabaseColumn(final Level level) { 33 if (level == null) { 34 return null; 35 } 36 return level.name(); 37 } 38 39 @Override 40 public Level convertToEntityAttribute(final String s) { 41 if (Strings.isEmpty(s)) { 42 return null; 43 } 44 45 return Level.toLevel(s, null); 46 } 47 }