| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hadoop.ozone.audit; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import org.apache.logging.log4j.Level; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Marker; |
| import org.apache.logging.log4j.spi.ExtendedLogger; |
| |
| |
| /** |
| * Class to define Audit Logger for Ozone. |
| */ |
| public class AuditLogger { |
| |
| private ExtendedLogger logger; |
| private static final String FQCN = AuditLogger.class.getName(); |
| private static final Marker WRITE_MARKER = AuditMarker.WRITE.getMarker(); |
| private static final Marker READ_MARKER = AuditMarker.READ.getMarker(); |
| |
| /** |
| * Parametrized Constructor to initialize logger. |
| * @param type Audit Logger Type |
| */ |
| public AuditLogger(AuditLoggerType type){ |
| initializeLogger(type); |
| } |
| |
| /** |
| * Initializes the logger with specific type. |
| * @param loggerType specified one of the values from enum AuditLoggerType. |
| */ |
| private void initializeLogger(AuditLoggerType loggerType){ |
| this.logger = LogManager.getContext(false).getLogger(loggerType.getType()); |
| } |
| |
| @VisibleForTesting |
| public ExtendedLogger getLogger() { |
| return logger; |
| } |
| |
| public void logWriteSuccess(AuditMessage msg) { |
| this.logger.logIfEnabled(FQCN, Level.INFO, WRITE_MARKER, msg, null); |
| } |
| |
| public void logWriteFailure(AuditMessage msg) { |
| this.logger.logIfEnabled(FQCN, Level.ERROR, WRITE_MARKER, msg, |
| msg.getThrowable()); |
| } |
| |
| public void logReadSuccess(AuditMessage msg) { |
| this.logger.logIfEnabled(FQCN, Level.INFO, READ_MARKER, msg, null); |
| } |
| |
| public void logReadFailure(AuditMessage msg) { |
| this.logger.logIfEnabled(FQCN, Level.ERROR, READ_MARKER, msg, |
| msg.getThrowable()); |
| } |
| |
| public void logWrite(AuditMessage auditMessage) { |
| if (auditMessage.getThrowable() == null) { |
| this.logger.logIfEnabled(FQCN, Level.INFO, WRITE_MARKER, auditMessage, |
| auditMessage.getThrowable()); |
| } else { |
| this.logger.logIfEnabled(FQCN, Level.ERROR, WRITE_MARKER, auditMessage, |
| auditMessage.getThrowable()); |
| } |
| } |
| |
| } |