| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache license, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the license for the specific language governing permissions and |
| * limitations under the license. |
| */ |
| package org.apache.logging.log4j.jpa.converter; |
| |
| import javax.persistence.AttributeConverter; |
| import javax.persistence.Converter; |
| |
| import org.apache.logging.log4j.util.Strings; |
| |
| /** |
| * A JPA 2.1 attribute converter for {@link StackTraceElement}s in {@link org.apache.logging.log4j.core.LogEvent}s. This |
| * converter is capable of converting both to and from {@link String}s. |
| */ |
| @Converter(autoApply = false) |
| public class StackTraceElementAttributeConverter implements AttributeConverter<StackTraceElement, String> { |
| private static final int UNKNOWN_SOURCE = -1; |
| |
| private static final int NATIVE_METHOD = -2; |
| |
| @Override |
| public String convertToDatabaseColumn(final StackTraceElement element) { |
| if (element == null) { |
| return null; |
| } |
| |
| return element.toString(); |
| } |
| |
| @Override |
| public StackTraceElement convertToEntityAttribute(final String s) { |
| if (Strings.isEmpty(s)) { |
| return null; |
| } |
| |
| return StackTraceElementAttributeConverter.convertString(s); |
| } |
| |
| static StackTraceElement convertString(final String s) { |
| final int open = s.indexOf("("); |
| |
| final String classMethod = s.substring(0, open); |
| final String className = classMethod.substring(0, classMethod.lastIndexOf(".")); |
| final String methodName = classMethod.substring(classMethod.lastIndexOf(".") + 1); |
| |
| final String parenthesisContents = s.substring(open + 1, s.indexOf(")")); |
| |
| String fileName = null; |
| int lineNumber = UNKNOWN_SOURCE; |
| if ("Native Method".equals(parenthesisContents)) { |
| lineNumber = NATIVE_METHOD; |
| } else if (!"Unknown Source".equals(parenthesisContents)) { |
| final int colon = parenthesisContents.indexOf(":"); |
| if (colon > UNKNOWN_SOURCE) { |
| fileName = parenthesisContents.substring(0, colon); |
| try { |
| lineNumber = Integer.parseInt(parenthesisContents.substring(colon + 1)); |
| } catch (final NumberFormatException ignore) { |
| // we don't care |
| } |
| } else { |
| fileName = parenthesisContents; |
| } |
| } |
| |
| return new StackTraceElement(className, methodName, fileName, lineNumber); |
| } |
| } |