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.appender.db.jpa.converter; 018 019import javax.persistence.AttributeConverter; 020import javax.persistence.Converter; 021 022import org.apache.logging.log4j.message.Message; 023import org.apache.logging.log4j.status.StatusLogger; 024import org.apache.logging.log4j.util.Strings; 025 026/** 027 * A JPA 2.1 attribute converter for {@link Message}s in {@link org.apache.logging.log4j.core.LogEvent}s. This 028 * converter is capable of converting both to and from {@link String}s. 029 */ 030@Converter(autoApply = false) 031public class MessageAttributeConverter implements AttributeConverter<Message, String> { 032 private static final StatusLogger LOGGER = StatusLogger.getLogger(); 033 034 @Override 035 public String convertToDatabaseColumn(final Message message) { 036 if (message == null) { 037 return null; 038 } 039 040 return message.getFormattedMessage(); 041 } 042 043 @Override 044 public Message convertToEntityAttribute(final String s) { 045 if (Strings.isEmpty(s)) { 046 return null; 047 } 048 049 return LOGGER.getMessageFactory().newMessage(s); 050 } 051}