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 */ 017 package org.apache.logging.log4j.core.appender.db.jpa.converter; 018 019 import javax.persistence.AttributeConverter; 020 import javax.persistence.Converter; 021 022 import org.apache.logging.log4j.Marker; 023 import org.apache.logging.log4j.MarkerManager; 024 025 /** 026 * A JPA 2.1 attribute converter for {@link Marker}s in {@link org.apache.logging.log4j.core.LogEvent}s. This 027 * converter is capable of converting both to and from {@link String}s. 028 */ 029 @Converter(autoApply = false) 030 public class MarkerAttributeConverter implements AttributeConverter<Marker, String> { 031 @Override 032 public String convertToDatabaseColumn(final Marker marker) { 033 StringBuilder builder = new StringBuilder(marker.getName()); 034 Marker parent = marker.getParent(); 035 int levels = 0; 036 boolean hasParent = false; 037 while (parent != null) { 038 levels++; 039 hasParent = true; 040 builder.append("[ ").append(parent.getName()); 041 parent = parent.getParent(); 042 } 043 for (int i = 0; i < levels; i++) { 044 builder.append(" ]"); 045 } 046 if (hasParent) { 047 builder.append(" ]"); 048 } 049 return builder.toString(); 050 } 051 052 @Override 053 public Marker convertToEntityAttribute(final String s) { 054 int bracket = s.indexOf("["); 055 056 return bracket < 1 ? MarkerManager.getMarker(s) : MarkerManager.getMarker(s.substring(0, bracket)); 057 } 058 }